Skip to main content

KEP 6-K

Korea Electric Power Corp (KEP)

6-K 2025-03-11 For: 2025-03-11
View Original
Added on April 11, 2026
Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OFFOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or15d-16 under

the Securities Exchange Act of 1934

For the Month of March 2025

Commission File Number 001-13372

KOREA ELECTRIC POWER CORPORATION

(Translation of registrant’s name into English)

55 Jeollyeok-ro, Naju-si, Jeollanam-do, 58322, Korea

(Addressof principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒    Form 40-F ☐

Table of Contents

On March 11, 2025, Korea Electric Power Corporation (“KEPCO”) filed its audit report for the fiscal year 2024 prepared in accordance with Korean International Financial Reporting Standards (K-IFRS) as attached. The financial statements in such report have not been approved by the shareholders of KEPCO and remain subject to change.

Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

By: /s/ Joo, Hwa-Sik
Name: Joo,<br>Hwa-Sik
Title: Vice President

Date: March 11, 2025

Table of Contents

KOREA ELECTRIC POWER CORPORATION

AND ITS SUBSIDIARIES

Consolidated financial statements

For each of the two years in the period ended December 31, 2024

(With independent auditor’s report thereon)

Table of Contents

TABLE OF CONTENTS

Page
Independent auditor’s report
Consolidated financial statements
Consolidated statements of financial position 1
Consolidated statements of comprehensive income (loss) 3
Consolidated statements of changes in equity 5
Consolidated statements of cash flows 7
Notes to the consolidated financial statements 9
Audit opinion on internal control over financial reporting
Independent auditor’s report on the internal control over financial reporting
Management’s annual report on the effectiveness of the internal control over<br> financial reporting
Table of Contents

LOGO

Independent auditor’s report

(English translation of a report originally issued in Korean)

Korea Electric Power Corporation

The Shareholders and Board of Directors

Opinion

We have audited the consolidated financial statements of Korea Electric Power Corporation and its subsidiaries (collectively referred to as the “Group”), which comprise the consolidated statements of financial position as of December 31, 2024 and 2023, and the consolidated statements of comprehensive income (loss), consolidated statements of changes in equity and consolidated statements of cash flows for each of the two years in the period ended December 31, 2024, and the notes to the consolidated financial statements, including material accounting policy information.

In our opinion, the accompanying consolidated financial statements present fairly, in all material respects, the consolidated financial position of the Group as of December 31, 2024 and 2023, and its consolidated financial performance and its consolidated cash flows for each of the two years in the period ended December 31, 2024 in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (“KIFRS”).

We have audited the Group’s internal control over financial reporting (“ICFR”) as of December 31, 2024 based on the Conceptual Framework for Design and Operation of ICFR established by the Operating Committee of ICFR in Korea in accordance with Korean Standards on Auditing (“KSA”), and our report dated March 11, 2025 expressed an unqualified opinion thereon.

Basis for o**pinion

We conducted our audit in accordance with KSA. Our responsibilities under those standards are further described in the Auditor’s responsibilities for the audit of the consolidated financial statements section of our report. We are independent of the Group in accordance with the ethical requirements that are relevant to our audit of the consolidated financial statements in the Republic of Korea, and we have fulfilled our other ethical responsibilities in accordance with these requirements. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.

Key audit matter

A key audit matter is the matter that, in our professional judgment, was of most significance in our audit of the consolidated financial statements of the current period. This matter was addressed in the context of our audit of the consolidated financial statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on this matter.

Impairment of property, plant and equipment (“PP&E”)

As discussed in Note 3.(18) to the consolidated financial statements, at each reporting date, management assesses if there is any indication that its PP&E may be impaired. If there is any sign indicating that a cash-generating unit (“CGU”) is impaired, management compares the recoverable amount of the CGU with its carrying value to determine if each item of PP&E allocated to the respective CGU is impaired.

Based on the significant difference between the Group’s market capitalization and the carrying amount of net assets in its consolidated statement of financial position, management determined that there is a sign indicating the impairment of the Group’s PP&E allocated to the Group’s electricity transmission and distribution business CGU as of December 31, 2024.

Management performed an impairment assessment for PP&E allocated to the CGU held by the Group by comparing the carrying amount of the CGU with its value-in-use (VIU) which is determined based on discounted cash flow forecasts. Significant judgment of management is required for determining key assumptions which have material impact on the estimation of VIU, such as future sales volume estimates, unit sales price, cost of power purchase, and discount rate. We have identified the impairment assessment of PP&E allocated to electricity transmission and distribution business as a key audit matter, due to the significance of carrying value of these assets in the consolidated financial statements, complexity of estimation using a discounted cash flow forecast and inherent uncertainty and probability of management bias caused by the involvement of significant management judgment required in estimating the variable inputs.

Table of Contents

LOGO

The primary audit procedures we performed to address this key audit matter are as follows:

Identify and test key internal controls relating to the Group’s assessment of impairment of PP&E;<br>
Assess the CGUs identified by the Group’s management and obtain an understanding of the Group’s<br>business;
--- ---
Compare the estimates including the discounted cash flow forecasts made in the prior year to the actual<br>performance for the current year in order to assess whether the estimation is appropriate;
--- ---
Involve an internal valuation specialist to assist us in assessing the discount rate applied by management in<br>comparison with the discount rate recalculated by us based on market and entity-specific information;
--- ---
Obtain the Group’s business plan and external data for major unobservable inputs used in estimating VIU,<br>such as future sales volumes, unit sales price and cost of power purchase, and consider whether there were any indicators of management bias; and
--- ---
Observe the management’s sensitivity analyses on the discount rate applied to the discounted cash flow<br>forecasts and assess the impact of changes in the key assumptions on the conclusion of the impairment assessments made by management and whether there were any indicators of management bias.
--- ---

Responsibilities of management and those charged with governance for the consolidated financial statements

Management is responsible for the preparation and fair presentation of the consolidated financial statements in accordance with KIFRS, and for such internal control as management determines is necessary to enable the preparation of consolidated financial statements that are free from material misstatement, whether due to fraud or error.

In preparing the consolidated financial statements, management is responsible for assessing the Group’s ability to continue as a going concern, disclosing, as applicable, matters related to going concern and using the going concern basis of accounting unless management either intends to liquidate the Group or to cease operations, or has no realistic alternative but to do so.

Those charged with governance are responsible for overseeing the Group’s financial reporting process.

Auditor’s responsibilities for the audit of the consolidated financial statements

Our objectives are to obtain reasonable assurance about whether the consolidated financial statements as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditor’s report that includes our opinion. Reasonable assurance is a high level of assurance but is not a guarantee that an audit conducted in accordance with KSA will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these consolidated financial statements.

As part of an audit in accordance with KSA, we exercise professional judgment and maintain professional skepticism throughout the audit. We also:

Identify and assess the risks of material misstatement of the consolidated financial statements, whether due to<br>fraud or error, design and perform audit procedures responsive to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is<br>higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control.
Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are<br>appropriate in the circumstances.
--- ---
Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and<br>related disclosures made by management.
--- ---
Conclude on the appropriateness of management’s use of the going concern basis of accounting and, based on<br>the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Group’s ability to continue as a going concern. If we conclude that a material uncertainty exists, we are<br>required to draw attention in our auditor’s report to the related disclosures in the consolidated financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to<br>the date of our auditor’s report. However, future events or conditions may cause the Group to cease to continue as a going concern.
--- ---
Evaluate the overall presentation, structure and content of the consolidated financial statements, including the<br>disclosures, and whether the consolidated financial statements represent the underlying transactions and events in a manner that achieves fair presentation.
--- ---
Obtain sufficient appropriate audit evidence regarding the financial information of the entities or business<br>activities within the Group to express an opinion on the consolidated financial statements. We are responsible for the direction, supervision and performance of the group audit. We remain solely responsible for our audit opinion.<br>
--- ---
Table of Contents

LOGO

We communicate with those charged with governance regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal control that we identify during our audit.

We also provide those charged with governance with a statement that we have complied with relevant ethical requirements regarding independence, and to communicate with them all relationships and other matters that may reasonably be thought to bear on our independence, and where applicable, related safeguards.

From the matters communicated with those charged with governance, we determine those matters that were of most significance in the audit of the consolidated financial statements of the current period and are therefore the key audit matters. We describe these matters in our auditor’s report unless law or regulation precludes public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication.

The engagement partner on the audit resulting in this independent auditor’s report is Jaekeun Song.

March 11, 2025

This audit report is effective as of the independent auditor’s report date. Accordingly, certain material subsequent events or circumstances may have occurred during the period from the date of the independent auditor’s report to the time this report is used. Such events and circumstances could significantly affect the accompanying consolidated financial statements and may result in modifications to report.

Table of Contents

KOREA ELECTRIC POWER CORPORATION

AND ITS SUBSIDIARIES

Consolidated financial statements

For each of the two years in the period ended December 31, 2024

“The accompanying consolidated financial statements, including all footnotes and disclosures, have been prepared by, and are the responsibility of, the Group.”

Dong-Cheol Kim

Chief Executive Officer

Korea Electric Power Corporation

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of financial position

As ofDecember 31, 2024 and 2023

In millions of won Note 2024 2023
Assets
Current assets
Cash and cash equivalents 5,6,7,45 ~~W~~ 2,382,979 4,342,887
Current financial assets, net 5,6,9,11,12,13,45,47 3,494,717 3,107,397
Trade and other receivables, net 5,8,20,24,45,46,47 12,216,216 11,985,735
Inventories, net 14 9,769,236 8,875,615
Income tax receivables 41 78,495 69,612
Current non-financial assets 15 1,267,914 1,109,321
Assets held-for-sale 16,42 45,648 45,648
Total current assets 29,255,205 29,536,215
Non-current assets
Non-current financial assets, net 5,6,9,10,11,12,13,45,47 4,945,990 3,546,214
Non-current trade and other receivables, net 5,8,20,45,46,47 3,157,409 2,193,587
Property, plant and equipment, net 4,18,24,27,49 182,982,763 179,875,535
Investment properties, net 4,19,27 228,984 185,527
Goodwill 4,16 99,179 99,156
Intangible assets other than goodwill, net 4,21,27,46 1,046,918 1,033,984
Investments in associates 4,17 6,704,754 6,176,889
Investments in joint ventures 4,17 4,581,340 3,485,699
Defined benefit assets, net 25 40,425 70,187
Deferred tax assets 41 13,436,624 13,161,802
Non-current non-financial assets 4,15 328,204 350,170
Total non-current assets 217,552,590 210,178,750
Total assets 4 ~~W~~ 246,807,795 239,714,965

(Continued)

1

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of financial position, Continued

Asof December 31, 2024 and 2023

In millions of won Note 2024 2023
Liabilities
Current liabilities
Trade and other payables, net 5,22,24,45,47 ~~W~~ 9,411,315 9,089,973
Current financial liabilities, net 5,12,23,45,47 44,465,866 41,139,726
Income tax payables 41 970,496 482,934
Current non-financial liabilities 20,28,29 6,327,141 7,881,663
Current provisions 26,45 2,793,971 2,654,125
Total current liabilities 63,968,789 61,248,421
Non-current liabilities
Non-current trade and other payables, net 5,22,24,45,47 4,609,241 4,981,957
Non-current financial liabilities, net 5,12,23,45,47 88,352,359 92,944,338
Non-current non-financial liabilities 28,29 13,281,520 11,196,000
Employee benefits liabilities, net 25,45 1,451,547 1,035,320
Deferred tax liabilities 41 5,944,472 5,163,135
Non-current provisions 26,45 27,837,034 25,881,044
Total non-current liabilities 141,476,173 141,201,794
Total liabilities 4 ~~W~~ 205,444,962 202,450,215
Equity
Contributed capital 1,30,45
Share capital ~~W~~ 3,209,820 3,209,820
Share premium 843,758 843,758
4,053,578 4,053,578
Retained earnings 31
Legal reserves 1,604,910 1,604,910
Voluntary reserves 2,812,313
Unappropriated retained earnings 18,523,337 11,921,039
20,128,247 16,338,262
Other components of equity 34
Other capital surplus 1,600,812 1,600,801
Accumulated other comprehensive income 1,424,014 557,430
Other equity 12,708,585 13,294,972
15,733,411 15,453,203
Equity attributable to owners of<br><br><br>the controlling company 39,915,236 35,845,043
Non-controlling interests 16,33 1,447,597 1,419,707
Total equity ~~W~~ 41,362,833 37,264,750
Total liabilities and equity ~~W~~ 246,807,795 239,714,965

The accompanying notes are an integral part of the consolidated financial statements.

2

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of comprehensive income (loss)

Foreach of the two years in the period ended December 31, 2024

In millions of won, except per share information Note 2024 2023
Sales 4,35,45,47
Sales of goods 2 ~~W~~ 91,018,712 85,940,137
Sales of services 710,445 750,878
Sales of construction services 20 849,108 785,395
Revenue related to transfer of assets from customers 28 820,631 743,051
93,398,896 88,219,461
Cost of sales 14,25,43,47
Cost of sales of goods (80,221,013 ) (88,066,120 )
Cost of sales of services (557,261 ) (629,806 )
Cost of sales of construction services (1,185,886 ) (1,003,601 )
(81,964,160 ) (89,699,527 )
Gross profit (loss) 11,434,736 (1,480,066 )
Selling and administrative expenses 25,36,43,47 (3,070,026 ) (3,061,582 )
Operating profit (loss) 4 8,364,710 (4,541,648 )
Other income 37 477,354 532,851
Other expenses 37 (465,688 ) (258,905 )
Other gains, net 38 84,884 22,686
Finance income 5,12,39 3,448,177 1,425,031
Finance expenses 5,12,40 (7,535,228 ) (5,347,018 )
Profit (loss) related to associates, joint ventures and subsidiaries 4,16,17
Gain on valuation of investments in associates and joint ventures 937,959 804,141
Gain on disposal of investments in associates and joint ventures 186,066 18,204
Reversal of impairment loss on investments in associates and joint ventures 10,527 347
Gain on disposal of investments in subsidiaries 98 2
Loss on valuation of investments in associates and joint ventures (182,507 ) (209,085 )
Loss on disposal of investments in associates and joint ventures (650 )
Loss on impairment of investments in associates and joint ventures (69,173 ) (19 )
Loss on disposal of investments in subsidiaries (564 )
882,320 613,026
Profit (loss) before income tax 5,256,529 (7,553,977 )
Income tax benefit (expense) 41 (1,634,561 ) 2,837,833
Profit (loss) for the year ~~W~~ 3,621,968 (4,716,144 )

(Continued)

3

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of comprehensive income (loss), Continued

For each of the two years in the period ended December 31, 2024

In millions of won, except per share information Note 2024 2023
Other comprehensive income (loss), net of tax 5,12,25,31,34
Items that will not be reclassified subsequently to profit or loss:
Remeasurement of defined benefit liability 25,31 ~~W~~ (296,135 ) (271,724 )
Share in other comprehensive loss of associates and joint ventures 31 (6,346 ) (27,349 )
Net change in fair value of equity investments at fair value through other comprehensive income<br>(loss) 34 100,759 (31,665 )
Items that are or may be reclassified subsequently to profit or loss:
Net change in the unrealized fair value of derivatives using cash flow hedge accounting 5,12,34 11,870 (3,654 )
Foreign currency translation of foreign operations 34 164,628 (17,274 )
Share in other comprehensive income of associates and joint ventures 34 654,225 122,994
Other comprehensive income (loss) for the year 629,001 (228,672 )
Total comprehensive income (loss) for the year ~~W~~ 4,250,969 (4,944,816 )
Profit (loss) attributable to:
Owners of the controlling company 44 ~~W~~ 3,491,698 (4,822,549 )
Non-controlling interests 130,270 106,405
~~W~~ 3,621,968 (4,716,144 )
Total comprehensive income (loss) attributable to:
Owners of the controlling company ~~W~~ 4,070,175 (5,032,584 )
Non-controlling interests 180,794 87,768
~~W~~ 4,250,969 (4,944,816 )
Earnings (losses) per share (in won) 44
Basic and diluted earnings (losses) per share ~~W~~ 5,439 (7,512 )

The accompanying notes are an integral part of the consolidated financial statements.

4

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of changes in equity

For each of thetwo years in the period ended December 31, 2024

In millions of won Equity attributable to owners of the controlling company Non-<br>controlling<br>interests
Contributedcapital Retained<br>earnings Other<br>components<br>of equity Subtotal Total<br>equity
Balance as of January 1, 2023 ~~W~~ 4,053,578 21,431,300 15,060,518 40,545,396 1,454,860 42,000,256
Total comprehensive income (loss) for the period
Profit (loss) for the period (4,822,549 ) (4,822,549 ) 106,405 (4,716,144 )
Items that will not be reclassified subsequently to profit or loss:
Remeasurement of defined benefit plans, net of tax (242,987 ) (242,987 ) (28,737 ) (271,724 )
Share of other comprehensive loss of associates and joint ventures, net of tax (27,349 ) (27,349 ) (27,349 )
Net change in fair value of financial assets at fair value through other comprehensive income, net<br>of tax (31,665 ) (31,665 ) (31,665 )
Items that may be reclassified subsequently to profit or loss:
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of<br>tax (5,078 ) (5,078 ) 1,424 (3,654 )
Foreign currency translation of foreign operations, net of tax (25,950 ) (25,950 ) 8,676 (17,274 )
Share of other comprehensive income of associates and joint ventures, net of tax 122,994 122,994 122,994
Transactions with owners of the Group, recognized directly in equity
Dividends paid (45,322 ) (45,322 )
Additional paid-in capital and others (1 ) (1 ) 6,024 6,023
Transactions between consolidated entities 332,280 332,280 (73,795 ) 258,485
Changes in consolidation scope (48 ) (48 ) 384 336
Dividends paid for hybrid bonds (10,212 ) (10,212 )
Others (153 ) 153
Balance as of December 31, 2023 ~~W~~ 4,053,578 16,338,262 15,453,203 35,845,043 1,419,707 37,264,750

(Continued)

5

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of changes in equity, Continued

Foreach of the two years in the period ended December 31, 2024

In millions of won Equity attributable to owners of the controlling company Non-<br>controlling<br>interests
Contributedcapital Retained<br>earnings Other<br>components<br>of equity Subtotal Total<br>equity
Balance as of January 1, 2024 ~~W~~ 4,053,578 16,338,262 15,453,203 35,845,043 1,419,707 37,264,750
Total comprehensive income for the period
Profit for the period 3,491,698 3,491,698 130,270 3,621,968
Items that will not be reclassified subsequently to profit or loss:
Remeasurement of defined benefit plans, net of tax (281,761 ) (281,761 ) (14,374 ) (296,135 )
Share of other comprehensive loss of associates and joint ventures, net of tax (6,346 ) (6,346 ) (6,346 )
Net change in fair value of financial assets at fair value through other comprehensive income, net<br>of tax 100,759 100,759 100,759
Items that may be reclassified subsequently to profit or loss:
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of<br>tax 11,976 11,976 (106 ) 11,870
Foreign currency translation of foreign operations, net of tax 99,624 99,624 65,004 164,628
Share of other comprehensive income of associates and joint ventures, net of tax 654,225 654,225 654,225
Transactions with owners of the Group, recognized directly in equity
Dividends paid (126,900 ) (126,900 )
Additional paid-in capital and others (1,819 ) (1,819 )
Transactions between consolidated entities 18 18 (13,878 ) (13,860 )
Changes in consolidation scope 9 9
Dividends paid for hybrid bonds (10,316 ) (10,316 )
Others
Transfer of revaluation reserve 586,394 (586,394 )
Balance as of December 31, 2024 ~~W~~ 4,053,578 20,128,247 15,733,411 39,915,236 1,447,597 41,362,833

The accompanying notes are an integral part of the consolidated financial statements.

6

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of cash flows

For each of the twoyears in the period ended December 31, 2024

In millions of won 2024 2023
Cash flows from operating activities
Profit(loss) for the year ~~W~~ 3,621,968 (4,716,144 )
Adjustments to reconcile profit (loss) for the period to net cash provided by operating<br>activities:
Income tax expenses (benefits) 1,634,561 (2,837,833 )
Depreciation 13,833,788 12,869,089
Amortization 163,567 163,174
Retirement benefit expenses 427,980 358,730
Bad debt expense 60,309 101,550
Interest expense 4,665,095 4,451,659
Loss on disposal of financial assets 434 1
Loss on disposal of property, plant and equipment 112,018 98,120
Loss on abandonment of property, plant and equipment 195,697 196,697
Loss on impairment of property, plant and equipment 11,240 17,031
Loss on impairment of intangible assets 902 2,865
Loss on disposal of intangible assets 111 71
Increase in provisions, net 1,762,526 1,611,082
Loss on foreign currency translation, net 2,366,830 363,659
Gain on valuation of financial assets at fair value through profit or loss (83,408 ) (152,322 )
Loss on valuation of financial assets at fair value through profit or loss 14,247 24,015
Gain on valuation and transaction of derivative instruments, net (2,406,368 ) (323,858 )
Gain on valuation of investments in associates and joint ventures, net (755,452 ) (595,056 )
Gain on disposal of financial assets (45,493 ) (13,162 )
Gain on disposal of property, plant and equipment (85,990 ) (32,196 )
Gain on disposal of intangible assets (41 ) (136 )
Gain on disposal of associates and joint ventures (186,066 ) (18,204 )
Loss on disposal of associates and joint ventures 650
Loss on impairment investments in associates and joint ventures 69,173 19
Reversal of impairment loss on investments in associates and joint ventures (10,527 ) (347 )
Gain on disposal of subsidiaries (98 ) (2 )
Loss on disposal of subsidiaries 564
Interest income (467,525 ) (429,620 )
Dividends income (70,601 ) (25,941 )
Others, net (76,125 ) 6,910
21,131,434 15,836,559
Changes in working capital:
Trade receivables 2,702 (1,484,134 )
Non-trade receivables (191,526 ) 625,993
Accrued income (189,995 ) (258,993 )
Other receivables 101,042 56,460
Other current assets (656,588 ) 251,842
Inventories (1,412,713 ) 147,798
Other non-current assets 108,625 (101,576 )
Trade payables 109,214 (3,154,822 )
Non-trade payables (97,540 ) (960,450 )
Accrued expenses (508,199 ) (228,464 )
Other current liabilities (2,261,294 ) 901,692
Other non-current liabilities 2,892,947 437,809
Investments in associates and joint ventures (dividends received) 364,287 592,812
Provisions (1,588,396 ) (1,497,699 )
Payments of employee benefit obligations (208,248 ) (281,383 )
Plan assets (254,763 ) (188,566 )
~~W~~ (3,790,445 ) (5,141,681 )

(Continued)

7

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Consolidated statements of cash flows, Continued

For each ofthe two years in the period ended December 31, 2024

In millions of won 2024 2023
Cash generated from operating activities ~~W~~ 20,962,957 5,978,734
Dividends received 12,243 25,941
Interest paid (4,697,442 ) (4,245,838 )
Interest received 390,671 329,740
Income taxes paid (792,313 ) (566,415 )
Net cash flows provided by operating activities 15,876,116 1,522,162
Cash flows from investing activities
Proceeds from disposals of investments in associates and joint ventures 236,624 5,806
Acquisition of investments in associates and joint ventures (451,813 ) (497,634 )
Proceeds from disposals of property, plant and equipment 402,603 309,627
Acquisition of property, plant and equipment (14,216,037 ) (13,908,373 )
Proceeds from disposals of intangible assets 428 153
Acquisition of intangible assets (91,851 ) (74,832 )
Proceeds from disposals of financial assets 2,615,341 4,389,228
Acquisition of financial assets (2,536,994 ) (3,141,906 )
Increase in loans (172,849 ) (212,994 )
Collection of loans 226,935 124,386
Increase in deposits (154,503 ) (138,205 )
Decrease in deposits 152,803 130,221
Proceeds from disposals of assets held-for-sale 28,727 28,727
Receipt of government grants 59,503 57,207
Net cash outflow from changes in consolidation scope (2,740 ) (25,849 )
Other cash outflow from investing activities, net (189,284 ) (119,319 )
Net cash flows used in investing activities (14,093,107 ) (13,073,757 )
Cash flows from financing activities
Proceeds from (Repayment of) short-term borrowings, net (1,536,401 ) 1,842,517
Proceeds from long-term borrowings 2,795,823 3,434,452
Proceeds from debt securities 20,476,245 18,402,589
Repayment of long-term borrowings (654,581 ) (870,586 )
Repayment of debt securities (24,687,409 ) (10,116,048 )
Payment of lease liabilities (612,828 ) (574,239 )
Settlement of derivative instruments, net 545,483 332,263
Change in non-controlling interests (35,986 ) 218,766
Dividends paid for hybrid bond (10,316 ) (10,212 )
Dividends paid (126,903 ) (45,323 )
Other cash inflow (outflow) from financing activities, net (2,428 ) 47,703
Net cash flows provided by (used in) financing activities (3,849,301 ) 12,661,882
Net increase (decrease) in cash and cash equivalents before effect of exchange ratefluctuations (2,066,292 ) 1,110,287
Effect of exchange rate fluctuations on cash held 106,384 (2,180 )
Net increase (decrease) in cash and cash equivalents (1,959,908 ) 1,108,107
Cash and cash equivalents as of January 1, 2024 and 2023 4,342,887 3,234,780
Cash and cash equivalents as of December 31, 2024 and 2023 ~~W~~ 2,382,979 4,342,887

The accompanying notes are an integral part of the consolidated financial statements.

8

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements

December 31, 2024 and 2023

1. Reporting Entity (Description of the controlling company)

Korea Electric Power Corporation (“KEPCO”), the controlling company as defined in International Financial Reporting Standards as adopted by the Republic of Korea (“KIFRS”) 1110 Consolidated Financial Statements, was incorporated on January 1, 1982 in accordance with the Korea Electric Power Corporation Act (the “KEPCO Act”) to engage in the generation, transmission and distribution of electricity and development of electric power resources in the Republic of Korea. KEPCO’s stock was listed on the Korea Stock Exchange on August 10, 1989 and KEPCO listed its Depository Receipts (DR) on the New York Stock Exchange on October 27, 1994. KEPCO’s head office is located in Naju, Jeollanam-do.

As of December 31, 2024, KEPCO’s share capital amounts to ~~W~~3,209,820 million and KEPCO’s shareholders are as follows:

Number of shares Percentage of<br>ownership
The Government of the Republic of Korea 116,841,794 18.20 %
Korea Development Bank 211,235,264 32.90 %
Other (*) 313,887,019 48.90 %
641,964,077 100.00 %
(*) The number of shares held by foreign shareholders is 97,414,248 shares (15.17%) as of December 31,<br>2024, the most recent closing date of the shareholder list.
--- ---

In accordance with the Restructuring Plan enacted on January 21, 1999 by the Ministry of Trade, Industry and Energy, KEPCO spun off its power generation divisions on April 2, 2001, resulting in the establishment of six power generation subsidiaries.

2. Basis of Preparation

The consolidated financial statements of Korea Electric Power Corporation and its subsidiaries (collectively referred to as the “Group”) were authorized for issuance by the Board of Directors on February 28, 2025, which will be submitted for final approval at the shareholders’ meeting held on March 26, 2025.

(1) Statement of compliance

These consolidated financial statements have been prepared in accordance with KIFRS, as prescribed in the Act on External Audit of Stockcompanies in the Republic of Korea. The accompanying consolidated financial statements have been translated into English from Korean financial statements. In the event of any differences in interpreting the financial statements or the independent auditor’s report thereon, the Korean version, which is used for regulatory reporting purposes, shall prevail.

(2) Basis of measurement

These consolidated financial statements have been prepared on the historical cost basis, except for the following material items in the consolidated statements of financial position:

financial assets at fair value through profit or loss;
financial assets at fair value through other comprehensive income or loss;
--- ---
derivative financial instruments are measured at fair value; or
--- ---
liabilities for defined benefit plans are recognized at the net of the total present value of defined benefit<br>obligations less the fair value of plan assets.
--- ---
(3) Functional and presentation currency
--- ---

These consolidated financial statements are presented in Korean won (presented as “won,” “~~W~~” or “KRW”), which is also the functional currency of KEPCO and most of the significant operating subsidiaries.

9

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

2. Basis of Preparation, Continued
(4) Use of estimates and judgments
--- ---

The preparation of the consolidated financial statements in conformity with KIFRS requires management to make judgments, estimates and assumptions that affect the application of accounting policies and the reported amounts of assets, liabilities, income and expenses. Actual results may differ from these estimates.

Estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the period in which the estimates are revised and in any future periods affected.

Meanwhile, the Group considers climate-related risks resulting from climate change and the establishment of a global greenhouse gas reduction implementation system in its estimates and assumptions. Climate-related risks increase the uncertainty of the estimates and assumptions considered in various items of the financial statements, and the Group carefully monitors climate-related changes and developments, such as new climate-related legislation, even if it does not have a material impact on current measurements.

The followings are the key assumptions and other key sources of estimation uncertainty at the end of the reporting period, that have a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within the next financial year.

(i) Useful lives of property, plant and equipment, Intangible assets other than goodwill and estimations on<br>provision for decommissioning costs

The Group reviews the estimated useful lives of property, plant and equipment at the end of each annual reporting period. Management’s assumptions could affect the determination of estimated economic useful lives.

The Group records the fair value of estimated decommissioning costs as a liability in the period in which the Group incurs a legal obligation associated with the retirement of long-lived assets that result from acquisition, construction, development and/or normal use of the assets. The Group is required to record a liability for the dismantling (demolition) of nuclear power plants and disposal of spent fuel and low and intermediate radioactive wastes. The measurement of such liability is subject to change based on change in estimated cash flow, inflation rate, discount rate, and expected timing of decommissioning.

(ii) Deferred tax

The Group recognizes deferred tax assets and liabilities based on the differences between the financial statement carrying amounts and the tax bases of assets and liabilities of each consolidated taxpaying entity. However, the amount of deferred tax assets may be different if the Group determines the estimated future taxable income is not sufficient to realize the deferred tax assets recognized.

(iii) Valuations of financial instruments at fair values

The Group’s accounting policies and disclosures require the measurement of fair values, for both financial and non-financial assets and liabilities. The Group has established control framework with respect to the measurement of fair values. The valuation team regularly reviews significant unobservable inputs and valuation adjustments.

If third party information, such as broker quotes or pricing services, is used to measure fair values, then the valuation team assesses the evidence obtained from the third parties to support the conclusion that such valuations meet the requirements of KIFRS including the level in the fair value hierarchy in which such valuation techniques should be classified.

When measuring the fair value of an asset or a liability, the Group uses market observable data as far as possible. Fair values are categorized into different levels in a fair value hierarchy based on the inputs used in the valuation techniques as follows.

If the inputs used to measure the fair value of an asset or a liability might be categorized in different levels of the fair value hierarchy, then the fair value measurement is categorized in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement. The Group recognizes transfers between levels of the fair value hierarchy at the end of the reporting period during which the change has occurred.

10

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

2. Basis of Preparation, Continued
(4) Use of estimates and judgments, continued
--- ---
(iv) Defined employee benefit liabilities
--- ---

The Group offers its employees defined benefit plans. The cost of providing benefits is determined using the Projected Unit Credit Method, with actuarial valuations being carried out at the end of each reporting period. For actuarial valuations, certain inputs such as discount rates and future salary increases are estimated. Defined benefit plans contain significant uncertainties in estimations due to its long-term nature (refer to Note 25).

(v) Unbilled revenue

Electricity delivered but neither metered nor billed is estimated at the reporting date based on the volume of electricity delivered which can vary significantly as a result of customer usage patterns, customer mix, meter reading schedules, weather, and etc. Unbilled revenue recognized as of December 31, 2024 and 2023 are ~~W~~2,492,898 million and ~~W~~2,504,479 million, respectively.

(vi) Construction contracts

The Group recognizes revenue over time using the cost-based input method which represents a faithful depiction of the Group’s progress towards complete satisfaction of providing the power plant construction, which has been identified as a single performance obligation. In applying the cost-based input method, it is necessary to use estimates and assumptions related to the Group’s efforts or inputs expected to be incurred. Costs incurred towards contract completion include costs associated with direct materials, labor, and other indirect costs related to contract performance. Judgment is required in estimating the costs expected to incur in completing the construction projects which involves estimating future materials, labor, contingencies and other related costs. Revenue is estimated based on the contractual amount; however, it can also be affected by uncertainties resulting from unexpected future events.

11

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

2. Basis of Preparation, Continued
(5) Changes in accounting policies
--- ---

Changes in accounting standards effective from January 1, 2024 are as follows. The Group believes that these amendments have no significant impact on the Group’s consolidated financial statements. The Group has not early adopted any other standards, interpretations or amendments that has been issued but is not yet effective.

Amendments to KIFRS 1116 – Lease Liability in a Sale and Leaseback

The amendments to KIFRS 1116 specify the requirements that a seller-lessee uses in measuring the lease liability arising in a sale and leaseback transaction, to ensure the seller-lessee does not recognize any amount of the gain or loss that relates to the right of use it retains.

Amendments to KIFRS 1001 – Classification of Liabilities as Current or Non-current

The amendments to KIFRS 1001 specify the requirements for classifying liabilities as current or non-current. The amendments clarify:

what is meant by a right to defer settlement;
that a right to defer must exist at the end of the reporting period;
--- ---
that classification is unaffected by the likelihood that an entity will exercise its deferral right; and<br>
--- ---
that if under the condition that an entity settles the liability by transferring its equity instruments, the<br>option is classified as equity instrument and the option is recognized separate from the liability as a component of equity for hybrid financial instrument, there is no impact on current or non-current classification.
--- ---

In addition, an entity is required to disclose when a liability arising from a loan agreement is classified as non-current and the entity’s right to defer settlement is contingent on compliance with future covenants within twelve months.

Amendments to KIFRS1007 and KIFRS 1107 – Supplier Finance Arrangements

The amendments to KIFRS 1007 Statement of Cash Flows and KIFRS 1107 Financial Instruments: Disclosures clarify the characteristics of supplier finance arrangements and require additional disclosure of such arrangements. The disclosure requirements in the amendments are intended to assist users of financial statements in understanding the effects of supplier finance arrangements on an entity’s liabilities, cash flows and exposure to liquidity risk.

12

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies

The accounting policies applied by the Group in these consolidated financial statements are the same as those applied by the Group in its consolidated financial statements as of and for the year ended December 31, 2023, except for the changes described in Note 2.(5).

(1) Basis of consolidation

The consolidated financial statements are the financial statements of the Group in which the assets, liabilities, equity, income, expenses and cash flows of the parent and its subsidiaries are presented as those of a single economic entity. Subsidiaries are controlled by the Group. The Group controls an entity when it is exposed to, or has rights to, variable returns from its involvement with the entity and has the ability to affect those returns through its power over the entity.

Income and expense of a subsidiary acquired or disposed of during the current year are included in the consolidated statement of comprehensive income from the effective date of acquisition and up to the effective date of disposal, as appropriate. Total comprehensive income of subsidiaries is attributed to the owners of the Group and to the non-controlling interests even if this results in the non-controlling interests having a deficit balance.

When necessary, adjustments are made to the financial statements of subsidiaries to bring their accounting policies into line with those of the Group.

Transactions within the Group are eliminated during the consolidation.

Changes in the Group’s ownership interests in a subsidiary that do not result in the Group losing control over the subsidiary are accounted for as equity transactions. The carrying amounts of the Group’s interests and the non-controlling interests are adjusted to reflect the changes in their relative interests in the subsidiary. Any difference between the amount by which the non-controlling interests are adjusted and the fair value of the consideration paid or received is recognized directly in equity and attributed to owners of the Group.

When the Group loses control of a subsidiary, the income or loss on disposal is calculated as the difference between (i) the aggregate of the fair value of the consideration received and the fair value of any retained interest and (ii) the previous carrying amount of the assets (including goodwill), and liabilities of the subsidiary and any non-controlling interests. When assets of the subsidiary are carried at revalued amounts or fair values and the related cumulative gain or loss has been recognized in other comprehensive income and accumulated in equity, the amounts previously recognized in other comprehensive income and accumulated in equity are accounted for as if the Group had directly disposed of the relevant assets (i.e. reclassified to income or loss or transferred directly to retained earnings). The fair value of any investment retained in the former subsidiary at the date when control is lost is recognized as the fair value on initial recognition for subsequent accounting under KIFRS 1109 ‘Financial Instruments’ or, when applicable, the cost on initial recognition of an investment in an associate or a jointly controlled entity.

(2) Business combinations

A business combination is accounted for by applying the acquisition method, unless it is a combination involving entities or businesses under common control.

The consideration transferred in a business combination is measured at fair value, which is calculated as the sum of the acquisition-date fair values of the assets transferred by the Group, liabilities incurred by the Group to the former owners of the acquiree and the equity interests issued by the Group in exchange for control of the acquiree. Acquisition-related costs are generally recognized in income or loss as incurred.

13

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(2) Business combinations, continued
--- ---

At the acquisition date, the identifiable assets acquired and the liabilities assumed are recognized at their fair value at the acquisition date, except that:

deferred tax assets or liabilities and liabilities or assets related to employee benefit arrangements are<br>recognized and measured in accordance with KIFRS 1012 Income Taxes and KIFRS 1019 Employee Benefits, respectively;
assets (or disposal groups) that are classified as held for sale in accordance with KIFRS 1105 Non-current Assets<br>Held for Sale are measured in accordance with that standard.
--- ---

Goodwill is measured as the excess of the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree, and the fair value of the acquirer’s previously held equity interest in the acquiree (if any) over the net of the acquisition-date amounts of the identifiable assets acquired and the liabilities assumed. If, after reassessment, net of the acquisition-date amounts of the identifiable assets acquired and liabilities assumed exceeds the sum of the consideration transferred, the amount of any non-controlling interests in the acquiree and the fair value of the acquirer’s previously held interest in the acquiree (if any), the excess is recognized immediately in income or loss as a bargain purchase gain.

Non-controlling interest that is present on acquisition day and entitles the holder to a proportionate share of the entity’s net assets in an event of liquidation, may be initially measured either at fair value or at the non-controlling interest’s proportionate share of the recognized amounts of the acquiree’s identifiable net assets. The choice of measurement can be elected on a transaction-by-transaction basis. Other types of non-controlling interests are measured at fair value or, when applicable, on the basis specified in other KIFRSs.

When the consideration transferred by the Group in a business combination includes assets or liabilities resulting from a contingent consideration arrangement, the contingent consideration is measured at its acquisition-date fair value and included as part of the consideration transferred in a business combination. Changes in the fair value of the contingent consideration that qualify as measurement period adjustments are adjusted retrospectively, with corresponding adjustments against goodwill. Measurement period adjustments are adjustments that arise from additional information obtained during the ‘measurement period’ (which cannot exceed one year from the acquisition date) about facts and circumstances that existed at the acquisition date.

The subsequent accounting for changes in the fair value of the contingent consideration that do not qualify as measurement period adjustments depends on how the contingent consideration is classified. Contingent consideration that is classified as equity is not re-measured at subsequent reporting dates and its subsequent settlement is accounted for within equity. Contingent consideration that is classified as an asset or a liability is re-measured at subsequent reporting dates in accordance with KIFRS 1109 Financial Instruments, or with KIFRS 1037 Provisions, Contingent Liabilities and Contingent Assets, as appropriate, with the corresponding gain or loss being recognized in income or loss.

When a business combination is achieved in stages, the Group’s previously held equity interest in the acquiree is re-measured to fair value at the acquisition date (i.e. the date when the Group obtains control) and the resulting gain or loss, if any, is recognized in income or loss. Amounts arising from interests in the acquiree prior to the acquisition date that have previously been recognized in other comprehensive income are reclassified to income or loss where such treatment would be appropriate if that interest were disposed of.

If the initial accounting for a business combination is incomplete by the end of the reporting period in which the combination occurs, the Group reports provisional amounts for the items for which the accounting is incomplete. Those provisional amounts are adjusted during the measurement period (see above), or additional assets or liabilities are recognized, to reflect new information obtained about facts and circumstances that existed at the acquisition date that, if known, would have affected the amounts recognized at that date.

The assets and liabilities acquired under business combinations under common control are recognized at the carrying amounts recognized previously in the consolidated financial statements of the ultimate parent. The difference between consideration transferred and carrying amounts of net assets acquired is recognized as part of share premium.

14

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(3) Investments in associates
--- ---

An associate is an entity over which the Group has significant influence and that is neither a subsidiary nor an interest in a joint venture. Significant influence is the power to participate in the financial and operating policy decisions of the investee but does not control or joint control over those policies. If the Group holds 20% ~ 50% of the voting power of the investee, it is presumed that the Group has significant influence.

The results and assets and liabilities of associates are incorporated in these consolidated financial statements using the equity method of accounting. If the investment is classified as held for sale, in which case it is accounted for in accordance with KIFRS 1105 Non-current Assets Held for Sale, any retained portion of an investment in associates that has not been classified as held for sale shall be accounted for using the equity method until disposal of the portion that is classified as held for sale takes place. After the disposal takes place, the Group shall account for any retained interest in associates in accordance with KIFRS 1109 Financial Instruments unless the retained interest continues to be an associate, in which case the entity uses the equity method.

Under the equity method, an investment in an associate is initially recognized in the consolidated statement of financial position at cost and adjusted thereafter to recognize the Group’s share of the income or loss and other comprehensive income of the associate. When the Group’s share of losses of an associate exceeds the Group’s interest in that associate (which includes any long-term interests that, in substance, form part of the Group’s net investment in the associate), the Group discontinues recognizing its share of further losses. Additional losses are recognized only to the extent that the Group has incurred legal or constructive obligations or made payments on behalf of the associate.

Any excess of the cost of acquisition over the Group’s share of the net fair value of the identifiable assets, liabilities and contingent liabilities of an associate recognized at the date of acquisition is recognized as goodwill, which is included within the carrying amount of the investment. Any excess of the Group’s share of the net fair value of the identifiable assets, liabilities and contingent liabilities over the cost of acquisition, after reassessment, is recognized immediately in income or loss.

Upon disposal of an associate that results in the Group losing significant influence over that associate, any retained investment is measured at fair value at that date and the fair value is regarded as its fair value on initial recognition as a financial asset in accordance with KIFRS 1109. The difference between the previous carrying amount of the associate attributable to the retained interest and its fair value is included in the determination of the gain or loss on disposal of the associate.

In addition, the Group accounts for all amounts previously recognized in other comprehensive income in relation to that associate on the same basis as would be required if that associate had directly disposed of the related assets or liabilities. Therefore, if a gain or loss previously recognized in other comprehensive income by that associate would be reclassified to income or loss on the disposal of the related assets or liabilities, the Group reclassifies the gain or loss from equity to income or loss (as a reclassification adjustment) when it loses significant influence over that associate.

The requirements of KIFRS 1028 Investments in Associates and Joint Ventures are applied to determine whether it is necessary to recognize any impairment loss with respect to the Group’s investment in an associate. When necessary, the entire carrying amount of the investment (including goodwill) is tested for impairment in accordance with KIFRS 1036 Impairment of Assets as a single asset by comparing its recoverable amount (higher of value-in-use and fair value less costs to sell) with its carrying amount, any impairment loss recognized forms part of the carrying amount of the investment. Any reversal of that impairment loss is recognized in accordance with KIFRS 1036 to the extent that the recoverable amount of the investment subsequently increases.

When the Group transacts with its associate, incomes and losses resulting from the transactions with the associate are recognized in the Group’s consolidated financial statements only to the extent of interests in the associate that are not related to the Group.

15

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(4) Joint arrangements
--- ---

A joint arrangement is an arrangement of which two or more parties have joint control. Joint control is the contractually agreed sharing of control of an arrangement, which exists only when decisions about the relevant activities require the unanimous consent of the parties sharing control. Joint arrangements are classified into two types—joint operations and joint ventures. A joint operation is a joint arrangement whereby the parties that have joint control of the arrangement (i.e. joint operators) have rights to the assets, and obligations for the liabilities, relating to the arrangement. A joint venture is a joint arrangement whereby the parties that have joint control of the arrangement (i.e. joint ventures) have rights to the net assets of the arrangement.

The classification of a joint arrangement as a joint operation or a joint venture depends upon the rights and obligations of the parties to the arrangement. The Group determines the type of joint arrangement in which it is involved by considering the structure and form of the arrangement, the terms agreed by the parties in the contractual arrangement and other facts and circumstances.

If the Group is a joint operator, the Group is to recognize and measure the assets and liabilities (and recognize the related revenues and expenses) in relation to its interest in the arrangement in accordance with relevant KIFRSs applicable to the particular assets, liabilities, revenues and expenses. If the joint arrangement is a joint venture, the Group is to account for that investment using the equity method accounting in accordance with KIFRS 1028 Investment in Associates and Joint Ventures (refer to note 3.(3)), except when the Group is applicable to the KIFRS 1105 Non-current Assets Held for Sale.

(5) Non-current assets held-for-sale

Non-current assets and disposal groups are classified as held-for-sale if their carrying amount will be recovered principally through a sale transaction rather than through continuing use. This condition is regarded as met only when the sale is highly probable and the non-current asset (or disposal group) is available for immediate sale in its present condition. Management must be committed to the sale, which should be expected to qualify for recognition as a completed sale within one year from the date of classification.

When the Group is committed to a sale plan involving loss of control of a subsidiary, all of the assets and liabilities of that subsidiary are classified as held for sale when the criteria described above are met, regardless of whether the Group will retain a non-controlling interest in its former subsidiary after the sale.

Non-current assets (and disposal groups) classified as held for sale are measured at the lower of their previous carrying amount and fair value less costs to sell.

(6) Goodwill

The Group measures goodwill which acquired in a business combination at the amount recognized at the date on which it obtains control of the acquiree (acquisition date) less any accumulated impairment losses. Goodwill acquired in a business combination is allocated to each cash-generating unit (CGU) that is expected to benefit from the synergies arising from the business acquired.

The Group assesses at the end of each reporting period and whenever there is an indication that the asset may be impaired. An impairment loss is recognized if the carrying amount of an asset or a CGU exceeds its recoverable amount. Impairment losses are recognized in profit or loss.

Any impairment identified at the CGU level will first reduce the carrying value of goodwill and then be used to reduce the carrying amount of the other assets in the CGU on a pro rata basis. Except for impairment losses in respect of goodwill which are never reversed, an impairment loss is reversed if there has been a change in the estimates used to determine the recoverable amount. An impairment loss is reversed only to the extent that the asset’s carrying amount does not exceed the carrying amount that would have been determined, net of depreciation or amortization, if no impairment loss had been recognized.

On disposal of the relevant CGU, the amount of goodwill is included in the determination of the gain or loss on disposal.

16

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(7) Revenue from Contracts with Customers
--- ---

The Group recognizes revenue by applying the five-step approach (Step 1: Identify the contract(s) with a customer, Step 2: Identify the performance obligations in the contract, Step 3: Determine the transaction price, Step 4: Allocate the transaction price to the performance obligations in the contract, Step 5: Recognize revenue when the entity satisfied a performance obligation), in accordance with KIFRS 1115. The Group recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services, excluding amounts collected on behalf of third parties. Also, the Group recognizes revenue when the Group satisfies a performance obligation by transferring a promised good or service to a customer.

(i) Identify the performance obligations in the contract

The Group is engaged in the generation, transmission and distribution of electricity and development of electric power resources, and electricity sales revenue accounts for 95.17% of consolidated revenue for the year ended December 31, 2024.

Under KIFRS 1115, supplying electricity is a series of distinct goods or services identified as a single performance obligation. The Group is also engaged in contracts with customers for transmission and distribution, provision of power generation byproducts, EPC business, O&M, etc. that are identified as separate performance obligations for each contract.

(ii) Variable consideration

The Group may be subject to a variation of consideration paid by the customer due to the progressive electricity billing system, discounts on electricity bills for policy purposes, penalties and delinquent payment, etc. The Group estimates an amount of variable consideration by using the expected value method that the Group expects to better predict the amount of consideration to which it will be entitled, and includes in the transaction price some or all of an amount of variable consideration only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

(iii) Performance obligations satisfied over time

The Group satisfies its performance obligations for contracts such as EPC business, O&M, etc. over time. The Group recognizes revenue based on the percentage-of-completion on a reasonable basis.

The Group recognizes revenue over time if one of the following criteria is met:

(a) the customer simultaneously receives and consumes the benefits provided by the Group’s performance as the<br>entity performs;
(b) the Group’s performance creates or enhances an asset that the customer controls as the asset is created or<br>enhanced; or
--- ---
(c) the Group’s performance does not create an asset with an alternative use to the entity and the entity has<br>an enforceable right to payment for performance completed to date.
--- ---
(iv) Adoption of cost pass-through tariff system
--- ---

The Group amended the basic supply terms and conditions with the approval of the Ministry of Trade, Industry and Energy (MOTIE) on December 17, 2020. The cost pass-through tariff system has been applied to the electricity rate after January 1, 2021 in accordance with the amendment. The Group expects the adoption of the new system would not affect the existing accounting policies including revenue from contracts with customers.

17

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(8) Leases
--- ---

The lessee and the lessor account for each lease component separately from non-lease component, in the lease contracts or contracts that contain lease. However, the Group applied a practical expedient to each type of underlying asset in accounting as a lessee, and instead of separating the non-lease component from the lease component, it applied a method of accounting for each lease component and the related non-lease component as a single lease contract. The lessor’s accounting has not changed significantly. Therefore, a lease that transfers most of the risks and rewards of ownership of the underlying asset is classified as a finance lease, and a lease that does not transfer most of the risks and rewards of ownership of the underlying asset is classified as an operating lease.

(i) The Group as a lessor

In the case of finance leases, the Group recognizes the same amount of the net investment in the lease as finance lease receivables, and recognizes interest income using the effective interest method. Income from operating leases is recognized using the straight-line basis over the lease term, and lease opening direct costs incurred during the negotiation and contract phase of the operating lease contract are added to the carrying amount of the lease asset and recognized as expenses over the lease term on a straight-line basis.

(ii) The Group as a lessee

(a) Right-of-use assets

The Group recognizes right-of-use assets at the commencement date of the lease. Right-of-use assets are measured at cost, less any accumulated depreciation and impairment losses, and adjusted for any re-measurement of lease liabilities. The cost of right-of-use assets includes the amount of lease liabilities recognized, initial direct costs incurred, and lease payments made at or before the commencement date less any lease incentives received. Unless the Group is reasonably certain to obtain ownership of the leased asset at the end of the lease term, the recognized right-of-use assets are depreciated on a straight-line basis over the shorter of its estimated useful life and the lease term. Right-of-use assets are subject to impairment.

(b) Lease liabilities

At the commencement date of the lease, the Group recognizes lease liabilities measured at the present value of lease payments to be made over the lease term. The lease payments include fixed payments (including in-substance fixed payments) less any lease incentives receivable, variable lease payments that depend on an index or a rate, and amounts expected to be paid under residual value guarantees. The lease payments also include the exercise price of a purchase option reasonably certain to be exercised by the Group and payments of penalties for terminating a lease, if the lease term reflects the Group exercising the option to terminate. The variable lease payments that do not depend on an index or a rate are recognized as expenses in the period on which the event or condition that triggers the payment occurs.

In calculating the present value of lease payments, the Group uses its incremental borrowing rate at the lease commencement date if the interest rate implicit in the lease is not readily determinable. After the commencement date, the amount of lease liabilities is increased to reflect the accretion of interest and reduced for the lease payments made. In addition, the carrying amount of lease liabilities is remeasured if there is a modification, a change in the lease term, a change in the in-substance fixed lease payments or a change in the assessment of an option to purchase the underlying asset.

(c) Short-term leases and leases of low-value assets

The Group applies the short-term leases recognition exemption to its short-term leases of machinery and equipment (i.e., those leases that have a lease term of 12 months or less from the commencement date and do not contain a purchase option). It also applies the leases of low-value assets recognition exemption to leases of office equipment that are considered to be low value. Lease payments on short-term leases and leases of low-value assets are recognized as expense on a straight-line basis over the lease term.

Book value and changes in book value of right-of-use assets and lease liabilities during the period are described in Note 24.

18

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(9) Foreign currencies
--- ---

Transactions in foreign currencies are translated to the respective functional currencies of the Group entities at exchange rates at the dates of the transactions. Monetary items in foreign currencies are retranslated to the functional currency using the reporting date’s exchange rate. Non-monetary items that are measured at fair value in foreign currencies are retranslated to the functional currency at the exchange rate at the date that the fair value was determined, while non-monetary items that are measured in terms of historical cost in foreign currencies shall not be retranslated.

Exchange differences are recognized in profit or loss in the period in which they arise except for:

exchange differences on foreign currency borrowings relating to assets under construction for future productive<br>use, which are included in the cost of those assets when they are regarded as an adjustment to interest costs on those foreign currency borrowings;
exchange differences on transactions entered into in order to hedge certain foreign currency risks (refer to Note<br>3.(23) Derivative financial instruments, including hedge accounting); and
--- ---
exchange differences on monetary items receivable from or payable to a foreign operation for which settlement is<br>neither planned nor likely to occur (therefore forming part of the net investment in the foreign operation), which are recognized initially in other comprehensive income and reclassified from equity to income or loss on disposal or partial disposal<br>of the net investment.
--- ---

For the purpose of presenting the consolidated financial statements, the assets and liabilities of the Group’s foreign operations are expressed in Korean won using exchange rates prevailing at the end of the reporting period. Income and expense items are translated at the average exchange rates for the period, unless exchange rates fluctuated significantly during that period, in which case the exchange rates at the dates of the transactions are used. Exchange differences arising, if any, are recognized in other comprehensive income and accumulated in equity (if applicable, in non-controlling interest).

On the disposal of a foreign operation, the cumulative amount of the exchange differences relating to that foreign operation that have been attributed to the controlling interests shall be reclassified from equity to profit or loss (as a reclassification adjustment). The cumulative amount of the exchange differences relating to that foreign operation that have been attributed to the non-controlling interests shall be derecognized, but shall not be reclassified to profit or loss.

On the partial disposal of a subsidiary that includes a foreign operation, the entity shall re-attribute the proportionate share of the cumulative amount of the exchange differences recognized in other comprehensive income to the non-controlling interests in that foreign operation. In any other partial disposal of a foreign operation the entity shall reclassify to profit or loss only the proportionate share of the cumulative amount of the exchange differences recognized in other comprehensive income.

Any goodwill arising on the acquisition of a foreign operation and any fair value adjustments to the carrying amounts of assets and liabilities arising on the acquisition of that foreign operation shall be treated as assets and liabilities of the foreign operation. Thus they shall be expressed in the functional currency of the foreign operation and shall be translated at the closing rate. And such exchange differences shall be recognized in equity.

(10) Borrowing costs

The Group capitalizes borrowing costs directly attributable to the acquisition, construction or production of a qualifying asset as part of the cost of that asset. Other borrowing costs are recognized in expense as incurred. A qualifying asset is an asset that requires a substantial period of time to get ready for its intended use or sale.

Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization.

All other borrowing costs are recognized in profit or loss in the period in which they are incurred.

19

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(11) Government grants
--- ---

Government grants are not recognized unless there is reasonable assurance that the Group will comply with the grant’s conditions and that the grant will be received.

Benefit from a government loan at a below-market interest rate is treated as a government grant, measured as the difference between proceeds received and the fair value of the loan based on prevailing market interest rates.

(i) If the Group received grants related to assets

Government grants whose primary condition is that the Group purchase, construct or otherwise acquire long-term assets are deducted in calculating the carrying amount of the asset. The grant is recognized in profit or loss over the life of a depreciable asset as a reduced depreciation expense.

(ii) If the Group received grants related to income

Government grants which are intended to compensate the Group for expenses incurred are recognized as other income (government grants) in profit or loss over the periods in which the Group recognizes the related costs as expenses.

(12) Retirement benefit expenses

When an employee has rendered service to the Group during a period, the Group recognizes the contribution payable to a defined contribution plan in exchange for that service as a liability (accrued expense).

For defined benefit pension plans and other post-employment benefits, the net periodic pension expense is actuarially determined by “Pension Actuarial System” developed by independent actuaries using the projected unit credit method. The present value of the defined benefit obligation is determined by discounting the estimated future cash outflows using interest rates of high-quality corporate bonds that are denominated in the currency in which the benefits will be paid and that have terms to maturity approximating the terms of the related pension liability. However, if there is not a deep market, market yields on government bonds are used.

Net defined benefit liability’s measurement is composed of actuarial gains and losses, return on plan assets excluding net interest on net defined benefit liability, and any change in the effect of the asset ceiling, excluding net interest, which are immediately recognized in other comprehensive income. The actuarial gains or losses recognized in other comprehensive income which will not be reclassified into net profit or loss for later periods are immediately recognized in retained earnings. Past service cost will be recognized as expenses upon the earlier of the date of change or reduction to the plan, or the date of recognizing termination benefits.

The retirement benefit obligation recognized in the statement of financial position represents the present value of the defined benefit obligation as adjusted for unrecognized actuarial gains and losses and unrecognized past service cost, and as reduced by the fair value of plan assets. Any asset resulting from this calculation is limited to unrecognized actuarial losses and past service cost, plus the present value of available refunds and reductions in future contributions to the plan.

20

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(13) Income taxes
--- ---

Income tax expense comprises current and deferred tax. Current tax and deferred tax are recognized in profit or loss except to the extent that it relates to a business combination, or items recognized directly in equity or in other comprehensive income.

(i) Current tax

Current tax is the expected tax payable or receivable on the taxable profit or loss for the year, using tax rates enacted or substantively enacted at the end of the reporting period and any adjustment to tax payable in respect of previous years. The taxable profit is different from the accounting profit for the period since the taxable profit is calculated excluding the temporary differences, which will be taxable or deductible in determining taxable profit (tax loss) of future periods, and non-taxable or non-deductible items from the accounting profit.

Current tax assets and liabilities are offset only if, the Group:

(a) has a legally enforceable right to set off the recognized amounts; and
(b) intends either to settle on a net basis, or to realize the asset and settle the liability simultaneously.<br>
--- ---
(ii) Deferred tax
--- ---

Deferred tax is recognized, using the asset-liability method, in respect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for taxation purposes. A deferred tax liability is recognized for all taxable temporary differences. A deferred tax asset is recognized for all deductible temporary differences to the extent that it is probable that taxable profit will be available against which they can be utilized. However, deferred tax is not recognized for the following temporary differences: taxable temporary differences arising on the initial recognition of goodwill, or the initial recognition of assets or liabilities in a transaction that is not a business combination and that affects neither accounting profit or loss nor taxable income.

The measurement of deferred tax liabilities and deferred tax assets reflects the tax consequences that would follow from the manner in which the Group expects, at the end of the reporting period, to recover or settle the carrying amount of its assets and liabilities. Deferred tax assets or deferred tax liabilities on investment properties measured at fair value, unless any contrary evidence exists, are measured using the assumption that the carrying amount of the property will be recovered entirely through sale.

The Group recognizes a deferred tax liability for all taxable temporary differences associated with investments in subsidiaries, associates, and interests in joint ventures, except to the extent that the Group is able to control the timing of the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future. The Group recognizes a deferred tax asset for all deductible temporary differences arising from investments in subsidiaries and associates, to the extent that it is probable that the temporary difference will reverse in the foreseeable future and taxable profit will be available against which the temporary difference can be utilized.

The carrying amount of a deferred tax asset is reviewed at the end of each reporting period and reduces the carrying amount to the extent that it is no longer probable that sufficient taxable profit will be available to allow the benefit of part or all of that deferred tax asset to be utilized.

Deferred tax assets and liabilities are measured at the tax rates that are expected to apply to the period when the asset is realized or the liability is settled, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. The measurement of deferred tax liabilities and deferred tax assets reflects the tax consequences that would follow from the manner in which the Group expects, at the end of the reporting period to recover or settle the carrying amount of its assets and liabilities.

Deferred tax assets and liabilities are offset only if there is a legally enforceable right to offset the related current tax liabilities and assets, and they relate to income taxes levied by the same tax authority and they intend to settle current tax liabilities and assets on a net basis.

(iii) Current and deferred tax for the year

Current and deferred tax are recognized in income or loss, except when they relate to items that are recognized in other comprehensive income or directly in equity, in which case, the current and deferred tax are also recognized in other comprehensive income or directly in equity respectively. Where current tax or deferred tax arises from the initial accounting for a business combination, the tax effect is included in the accounting for the business combination.

21

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(14) Property, plant and equipment
--- ---

Property, plant and equipment are initially measured at cost and after initial recognition, are carried at cost less accumulated depreciation and accumulated impairment losses. The cost of property, plant and equipment includes expenditures arising directly from the construction or acquisition of the asset, any costs directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management and the initial estimate of the costs of dismantling and removing the item and restoring the site on which it is located.

Subsequent costs are recognized in the carrying amount of property, plant and equipment at cost or, if appropriate, as separate items if it is probable that future economic benefits associated with the item will flow to the Group and the cost of the item can be measured reliably. The carrying amount of the replaced part is derecognized. The costs of the day-to-day servicing are recognized in profit or loss as incurred.

Property, plant and equipment, except for land, are depreciated on a straight-line basis over estimated useful lives that appropriately reflect the pattern in which the asset’s future economic benefits are expected to be consumed. For loaded nuclear fuel related to long-term raw materials and spent nuclear fuels related to asset retirement costs, the Group uses the unit-of-production method to measure and recognize depreciation expenses.

The estimated useful lives of the Group’s property, plant and equipment are as follows:

Useful lives (years)
Buildings 8 ~ 40
Structures 8 ~ 50
Machinery 2 ~ 32
Vehicles 4 ~ 5
Loaded heavy water 30
Asset retirement costs 18, 40, 60
Right-of-use assets 1 ~ 65
Ships 9
Others 4 ~ 30

A component that is significant compared to the total cost of property, plant and equipment is depreciated over its separate useful life.

Depreciation methods, residual values and useful lives of property, plant and equipment are reviewed at the end of each reporting period and if change is deemed appropriate, it is treated as a change in accounting estimate.

Property, plant and equipment are derecognized on disposal, or when no future economic benefits are expected from its use or disposal. Gains or losses arising from derecognition of a property, plant and equipment, measured as the difference between the net disposal proceeds and the carrying amount of the asset, are recognized in income or loss when the asset is derecognized.

22

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(15) Investment property
--- ---

Property held for the purpose of earning rentals or benefiting from capital appreciation is classified as investment property. Investment property is initially measured at its cost. Transaction costs are included in the initial measurement. Subsequently, investment property is carried at depreciated cost less any accumulated impairment losses.

Subsequent costs are recognized in the carrying amount of investment property at cost or, if appropriate, as separate items if it is probable that future economic benefits associated with the item will flow to the Group and the cost of the item can be measured reliably. The carrying amount of the replaced part is derecognized. The costs of the day-to-day servicing are recognized in profit or loss as incurred.

Investment property except for land, are depreciated on a straight-line basis over 8 ~ 40 years as estimated useful lives.

The estimated useful lives, residual values and depreciation method are reviewed at the end of each reporting period, with the effect of any changes in estimate accounted for on a prospective basis.

An investment property is derecognized upon disposal or when the investment property is permanently withdrawn from use and no future economic benefits are expected from the disposal. Any gain or loss arising on derecognition of the property (calculated as the difference between the net disposal proceeds and the carrying amount of the asset) is included in income or loss in the period in which the property is derecognized.

(16) Intangible assets
(i) Intangible assets acquired separately
--- ---

Intangible assets with finite useful lives that are acquired separately are carried at cost less accumulated amortization and accumulated impairment losses. Amortization is recognized on a straight-line basis over their estimated useful lives. The estimated useful life and amortization method are reviewed at the end of each reporting period, with the effect of any changes in estimate being accounted for on a prospective basis. Intangible assets with indefinite useful lives that are acquired separately are carried at cost less accumulated impairment losses.

(ii) Research and development

Expenditure on research activities is recognized as an expense in the period in which it is incurred. An internally-generated intangible asset arising from development (or from the development phase of an internal project) is recognized if, and only if, all of the following have been demonstrated:

the technical feasibility of completing the intangible asset so that it will be available for use or sale;<br>
the intention to complete the intangible asset and use or sell it;
--- ---
the ability to use or sell the intangible asset;
--- ---
how the intangible asset will generate probable future economic benefits;
--- ---
the availability of adequate technical, financial and other resources to complete the development and to use or<br>sell the intangible asset; and
--- ---
the ability to measure reliably the expenditure attributable to the intangible asset during its development.<br>
--- ---

The amount initially recognized for internally-generated intangible assets is the sum of the expenditure incurred from the date when the intangible asset first meets the recognition criteria listed above. When the development expenditure does not meet the criteria listed above, an internally-generated intangible asset cannot be recognized and the expenditure is recognized in income or loss in the period in which it is incurred.

Internally-generated intangible assets are reported at cost less accumulated amortization and accumulated impairment losses.

23

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(16) Intangible assets, continued
--- ---

The estimated useful lives and amortization methods of the Group’s intangible assets are as follows:

Useful lives (years) Amortizationmethods
Usage rights for donated assets 10 ~ 30 Straight line
Software 4 ~ 30 Straight line
Industrial rights 5 ~ 30 Straight line
Development expenses 5 Straight line
Leasehold rights 8 ~ 10 Straight line
Others 3 ~ 50 or indefinite Straight line
Mining right - Unit of production

Mining right is amortized using the unit-of-production method to reflect the pattern in which the asset’s economic benefits are consumed.

(iii) Intangible assets acquired in a business combination

Intangible assets that are acquired in a business combination are recognized separately from goodwill are initially recognized at their fair value at the acquisition date.

Subsequent to initial recognition, intangible assets acquired in a business combination are reported at cost less accumulated amortization and accumulated impairment losses, on the same basis as intangible assets that are acquired separately.

(iv) Derecognition of intangible assets

An intangible asset is derecognized on disposal, or when no future economic benefits are expected from its use or disposal. Gains or losses arising from derecognition of an intangible asset are measured as the difference between the net disposal proceeds and the carrying amount of the asset and are recognized in income or loss when the asset is derecognized.

(17) Greenhouse gas emissions rights (allowances) and obligations

In connection with Act on the Allocation and Trading of Greenhouse Gas Emissions Permits of the Republic of Korea, the Group applies the following accounting policies for greenhouse gas emissions rights and obligations.

(i) Greenhouse gas emissions rights

Greenhouse gas emissions rights consist of the allowances received free of charge from the government and the ones purchased. The cost of the greenhouse gas emissions rights includes expenditures arising directly from the acquisition and any other costs incurred during normal course of the acquisition.

Greenhouse gas emissions rights are held by the Group to fulfill the legal obligation and recorded as intangible assets. To the extent that the portion to be submitted to the government within one year from the end of reporting period, the greenhouse gas emissions rights are classified as current assets. Greenhouse gas emissions rights recorded as intangible assets are initially measured at cost and substantially remeasured at cost less accumulated impairment losses.

Greenhouse gas emissions rights are derecognized on submission to the government or when no future economic benefits are expected from its use or disposal.

(ii) Greenhouse gas emissions obligations

Greenhouse gas emissions obligations are the Group’s present legal obligation to submit the greenhouse gas emissions allowances to the government and recognized when an outflow of resources is probable and a reliable estimate can be made of the amount of the obligation. Greenhouse gas emissions obligations are measured as the sum of the carrying amount of the allocated rights that will be submitted to the government and the best estimate of expenditure required to settle the obligation at the end of the reporting period for any excess emission.

24

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(18) Impairment of non-financial assets other than goodwill
--- ---

At the end of each reporting period, the Group reviews the carrying amounts of its tangible and intangible assets with definite useful lives to determine whether there is any indication that those assets may have been impaired. If any such indication exists, the recoverable amount of the asset is estimated in order to determine the extent of the impairment loss (if any). Where it is not possible to estimate the recoverable amount of an individual asset, the Group estimates the recoverable amount of the cash-generating unit to which the asset belongs. Where a reasonable and consistent basis of allocation can be identified, corporate assets are also allocated to individual cash-generating units, or otherwise they are allocated to the smallest group of cash-generating units for which a reasonable and consistent allocation basis can be identified.

Intangible assets with indefinite useful lives and intangible assets not yet available for use are tested for impairment at least annually, and whenever there is an indication that the asset may be impaired.

Recoverable amount is the higher of fair value less costs to sell and value-in-use. In assessing value-in-use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted.

If the recoverable amount of an asset (or a CGU) is estimated to be less than its carrying amount, the carrying amount of the asset (or CGU) is reduced to its recoverable amount. An impairment loss is recognized immediately in profit or loss, unless the relevant asset is carried at a revalued amount, in which case the impairment loss is treated as a revaluation decrease.

When an impairment loss subsequently reverses, the carrying amount of the asset (or a CGU) is increased to the revised estimate of its recoverable amount, to the extent the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the asset (or CGU) in prior years. A reversal of an impairment loss is recognized immediately in profit or loss, unless the relevant asset is carried at a revalued amount, in which case the reversal of the impairment loss is treated as a revaluation increase.

The Group determined that there were indications of impairment for the cash-generating unit (CGU) related to electricity sales, as the carrying amount of net assets exceeded the market capitalization. Accordingly, an impairment assessment was conducted for the CGU. The Group estimated the value-in-use based on discounted cash flow forecasts, applying key assumptions such as the discount rate, future sales volume estimates, sales price, and costs of electricity purchased. As a result of the impairment assessment, the recoverable amount exceeded the carrying amount of the CGU.

(19) Inventories

Inventories are measured at the lower of cost and net realizable value. Cost of inventories for inventories in transit are measured by using specific identification method. Cost of inventories, except for those in transit, are measured under the weighted average method and consists of the purchase price, cost of conversion and other costs incurred in bringing the inventories to their present location and condition.

Net realizable value is the estimated selling price in the ordinary course of business, less the estimated costs of completion and selling expenses. The amount of any write-down of inventories to net realizable value and all losses of inventories are recognized as an expense in the period the write-down or loss occurs. The amount of any reversal of any write-down of inventories, arising from an increase in net realizable value, are recognized as a reduction in the amount of inventories recognized as an expense in the period in which the reversal occurs.

(20) Provisions

Provisions are recognized when the Group has a present legal or constructive obligation as a result of a past event, it is probable that an outflow of resources embodying economic benefits will be required to settle the obligation and a reliable estimate can be made of the amount of the obligation.

The risks and uncertainties that inevitably surround many events and circumstances are taken into account in reaching the best estimate of a provision. Where the effect of the time value of money is material, provisions are determined at the present value of the expected future cash flows.

25

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(20) Provisions, continued
--- ---

Where some or all of the expenditures required to settle a provision are expected to be reimbursed by another party, the reimbursement shall be recognized when, and only when, it is virtually certain that reimbursement will be received if the entity settles the obligation. The reimbursement shall be treated as a separate asset.

Provisions are reviewed at the end of each reporting period and adjusted to reflect the current best estimates. If it is no longer probable that an outflow of resources embodying economic benefits will be required to settle the obligation, the provision is reversed.

(i) Provision for employment benefits

The Group determines the provision for employment benefits as the incentive payments based on the results of the individual performance evaluation or management assessment.

(ii) Provision for decommissioning costs of nuclear power plants

The Group records the fair value of estimated decommissioning costs as a liability in the period in which the Group incurs a legal obligation associated with retirement of long-lived assets that result from acquisition, construction, development and/or normal use of the assets. Accretion expense consists of period-to-period changes in the liability for decommissioning costs resulting from the passage of time and revisions to either the timing or the amount of the original estimate of undiscounted cash flows.

(iii) Provision for disposal of spent nuclear fuel

Under the Radioactive Waste Management Act, the Group is levied to pay the spent nuclear fuel fund for the management of spent nuclear fuel. The Group recognizes the provision of present value of the estimated payments.

(iv) Provision for low and intermediate radioactive wastes

Under the Radioactive Waste Management Act, the Group recognizes the provision for the disposal of low and intermediate radioactive wastes in best estimate of the expenditure required to settle the present obligation.

(v) Provision for Polychlorinated Biphenyls (“PCBs”)

Under the regulation of Persistent Organic Pollutants Management Act, enacted in 2007, the Group is required to remove PCBs, a toxin, from the insulating oil of its transformers by 2025. As a result of the enactments, the Group is required to inspect the PCBs contents of transformers and dispose of PCBs in excess of safety standards under the legally settled procedures. The Group’s estimates and assumptions used to determine fair value can be affected by many factors, such as the estimated costs of inspection and disposal, inflation rate, discount rate, regulations and the general economy.

(vi) Provisions for power plant regional support program

Power plant regional support programs consist of scholarship programs to local students, local economy support programs, local culture support programs, environment development programs, and local welfare programs. The Group recognizes the provision in relation to power plant regional support program.

(vii) Provisions for transmission and transformation facilities-neighboring areas support program<br>

The Group has present obligation to conduct transmission and transformation facilities-neighboring areas support program under Act on assistance to transmission and transformation facilities-neighboring areas. The Group recognizes the provision of estimated amount to fulfill the obligation.

(viii) Renewable Portfolio Standard (“RPS”) provisions

RPS program is required to generate a specified percentage of total electricity to be generated in the form of renewable energy and provisions are recognized for the governmental regulations to require the production of energies from renewable energy sources such as solar, wind and biomass.

26

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(21) Financial instruments
--- ---

The Group recognizes financial assets and financial liabilities in the statement of financial position when the Group becomes a party to the contractual provisions of the instrument. Upon initial recognition, financial assets and financial liabilities are measured at their fair value plus, in the case of a financial asset or financial liabilities not at fair value through profit or loss, transaction costs that are directly attributable to the asset’s acquisition or issuance.

(i) Classification and measurement of financial assets

The Group classifies financial assets into three principal categories; measured at amortized cost, fair value through other comprehensive income (FVOCI) and fair value through profit or loss (FVTPL) based on the business model in which assets are managed and their cash flow characteristics. The Group assesses the hybrid financial instrument in which derivatives embedded as whole for classification.

Business model Cash flow characteristics
Solely payments of<br>principal and<br>interest (SPPI) Other<br>than<br>SPPI
To collect contractual cash flows Amortized cost FVTPL<br> <br>(*2)
Both collecting contractual cash flows and selling financial assets FVOCI (*1)
To sell financial assets FVTPL
(*1) To eliminate or reduce an accounting mismatch, the Group may elect to recognize the amount of change in fair<br>value in profit or loss.
--- ---
(*2) On initial recognition of an equity investment that is not held for trading, the Group may irrevocably elect to<br>present subsequent changes in the investment’s fair value in OCI.
--- ---

LOGO A financial asset is measured at amortized cost if it meets both of the following conditions and is not designated as at FVTPL: 1) it is held within a business model whose objective is to hold assets to collect contractual cash flows; and 2) its contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding.

LOGO A financial asset is measured at FVOCI if it meets both of the following conditions and is not designated as at FVTPL: 1) it is held within a business model whose objective is achieved by both collecting contractual cash flows and selling financial assets; and 2) its contractual terms of the financial asset give rise on specified dates to cash flow that are solely payments of principal and interest on the principal amount outstanding.

LOGO All financial assets not classified as measured at amortized cost or FVOCI as described above are measured at FVTPL. On initial recognition of equity investment that is not held for trading, the Group may irrevocably elect to present subsequent changes in fair value in OCI, and will not reclassify (recycle) those items in OCI to profit or loss subsequently.

(ii) Classification and measurement of financial liabilities

Financial liabilities are classified as FVTPL or other financial liabilities.

LOGO A financial liability is classified as at FVTPL if it is classified as held-for-trading, it is a derivative or it is designated as such on initial recognition. Financial liabilities at FVTPL are measured at fair value and net gains and losses, including any interest expense, are recognized in profit or loss.

LOGO A non-derivative financial liability that is not classified as at FVTPL is classified as other financial liabilities. Other financial liabilities are measured initially at its fair value minus transaction costs that are directly attributable to the acquisition or issue. Other financial liabilities are subsequently measured at amortized cost using the effective interest method.

27

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(21) Financial instruments, continued
--- ---
(iii) Impairment: Financial assets and contract assets
--- ---

The Group applies a forward-looking ‘expected credit loss’ (ECL) model for debt instruments, lease receivables, contractual assets, loan commitments and financial guarantee contracts.

The Group recognizes loss allowances measured on either of the 12-month or lifetime ECL based on the extent of increase in credit risk since inception as shown in the below table.

Classification Loss allowances
Stage 1 Credit risk has not increased significantly since the initial recognition 12-month ECL: ECLs that resulted from possible default events within the 12 months after the reporting date
Stage 2 Credit risk has increased significantly since the initial recognition Lifetime ECL: ECL that resulted from all possible default events over the expected life of a financial instrument
Stage 3 Credit-impaired

Under KIFRS 1109, the Group always measures the loss allowance at an amount equal to lifetime expected credit losses for trade receivables or contract assets that result from transactions that are within the scope of KIFRS 1115 and that do not contain a significant financing component in accordance with KIFRS 1115 and if the trade receivables or contract assets include a significant financing component, the Group may choose as its accounting policy to measure the loss allowance at an amount equal to lifetime expected credit losses.

The Group has chosen to measure the loss allowance at an amount equal to lifetime expected credit losses for the trade receivables, contract assets and lease receivables that contain a significant financing component.

(iv) Derecognition

The Group derecognizes a financial asset when the contractual rights to the cash flows from the financial asset expire, or it transfers the rights to receive the contractual cash flows in a transaction in which substantially all of the risks and rewards of ownership of the financial asset are transferred or in which the Group neither transfers nor retains substantially all of the risks and rewards of ownership and it does not retain control of the financial asset. The Group enters into transactions whereby it transfers assets recognized in its statement of financial position, but retains either all or substantially all of the risks and rewards of the transferred assets. In these cases, the transferred assets are not derecognized.

The Group derecognizes a financial liability when it contractual obligations are discharged or cancelled, or expire. On derecognition of a financial liability, the difference between the carrying amount extinguished and the consideration paid (including any non-cash assets transferred or liabilities assumed) is recognized in profit or loss.

(22) Service Concession Arrangements

The Group recognizes revenues from construction services and operating services related to service concession arrangements in accordance with KIFRS 1115 Revenue from Contracts with Customers.

The Group recognizes a financial asset to the extent that it has an unconditional contractual right to receive cash or another financial asset for the construction services and an intangible asset to the extent that it receives a right (license) to charge users of the public service. Borrowing costs attributable to the arrangement are recognized as an expense in the period in which they are incurred unless the Group has a contractual right to receive an intangible asset (a right to charge users of the public service). In this case, borrowing costs attributable to the arrangement are capitalized during the construction phase of the arrangement.

28

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(23) Derivative financial instruments, including hedge accounting
--- ---

The Group enters into a variety of derivative financial instruments to manage its exposure to interest rate and foreign exchange rate risk, including foreign exchange forward contracts, interest rate swaps and cross currency swaps and others.

Derivatives are initially recognized at fair value. Subsequent to initial recognition, derivatives are measured at fair value. The resulting gain or loss is recognized in income or loss immediately unless the derivative is designated and effective as a hedging instrument, in such case the timing of the recognition in income or loss depends on the nature of the hedge relationship.

A derivative with a positive fair value is recognized as a financial asset; a derivative with a negative fair value is recognized as a financial liability. A derivative is presented as a non-current asset or a non-current liability if the remaining maturity of the instrument is more than 12 months and it is not expected to be realized or settled within 12 months. Other derivatives are presented as current assets or current liabilities.

(i) Separable embedded derivatives

A derivative embedded in a hybrid contract, with a financial liability host or host not in the scope of KIFRS 1109, is separated from the host and accounted for as a separate derivative if: the economic characteristics and risks are not closely related to the host; a separate instrument with the same terms as the embedded derivative would meet the definition of a derivative; and the hybrid contract is not measured at fair value through profit or loss.

(ii) Hedge accounting

The Group designates certain hedging instruments, which include derivatives, embedded derivatives and non-derivatives in respect of foreign currency risk, as either fair value hedges or cash flow hedges. Hedges of foreign exchange risk on firm commitments are accounted for as cash flow hedges.

At the inception of the hedge relationship, the entity documents the relationship between the hedging instrument and the hedged item, along with its risk management objectives and its strategy for undertaking various hedge transactions. Furthermore, at the inception of the hedge and on an ongoing basis, the Group documents whether the hedging instrument is highly effective in offsetting changes in fair values or cash flows of the hedged item.

(iii) Fair value hedges

Changes in the fair value of derivatives that are designated and qualify as fair value hedges are recognized in income or loss immediately, together with any changes in the fair value of the hedged asset or liability that are attributable to the hedged risk. The changes in the fair value of the hedging instrument and the change in the hedged item attributable to the hedged risk relating to the hedged items are recognized in the consolidated statements of comprehensive income. However, changes in the fair value of hedging instrument and hedged item of equity instruments for which changes in fair value have been elected to be presented in other comprehensive income at the time of initial recognition are recognized in other comprehensive income.

If a hedging relationship no longer meets the objective of the hedge effectiveness related to the hedge ratio but the risk management objective for that designated hedging relationship remains the same, the hedge ratio of the hedging relationship should be rebalanced so that the hedging relationship again meets the criteria. Hedge accounting is discontinued when the Group revokes the hedging relationship, when the hedging instrument expires or is sold, terminated, or exercised, or when it no longer qualifies for hedge accounting. The fair value adjustment to the carrying amount of the hedged item arising from the hedged risk is amortized as income or loss as of that date.

(iv) Cash flow hedges

The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income. The gain or loss relating to the ineffective portion is recognized immediately in income or loss, and is included in finance income and expense.

29

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

3. Material Accounting Policies, Continued
(23) Derivative financial instruments, including hedge accounting, continued
--- ---

Amounts previously recognized in other comprehensive income and accumulated in equity are reclassified to income or loss in the periods when the hedged item is recognized in income or loss, in the same line of the consolidated statement of comprehensive income as the recognized hedged item. However, when the forecast transaction that is hedged results in the recognition of a non-financial asset or a non-financial liability, the gains and losses previously accumulated in equity are transferred from equity and included in the initial measurement of the cost of the non-financial asset or non-financial liability.

Hedge accounting is discontinued when the Group revokes the hedging relationship, when the hedging instrument expires or is sold, terminated, or exercised, or it no longer qualifies for hedge accounting. Any gain or loss accumulated in equity at that time remains in equity and is recognized when the forecast transaction is ultimately recognized in income or loss. When a forecast transaction is no longer expected to occur, the gain or loss accumulated in equity is recognized immediately in income or loss.

4. Segment, Geographic and Other Information
(1) Segment determination and explanation of the measurements
--- ---

The Group’s operating segments are its business components that generate discrete financial information that is reported to and regularly reviewed by chief operating decision makers of the Group including but not limited to the Chief Executive Officer, for the purpose of resource allocation and assessment of segment performance. The Group’s reportable segments classified in accordance with KIFRS 1108 are “Transmission and distribution”, “Electric power generation (Nuclear)”, “Electric power generation (Non-nuclear)”, “Plant maintenance & engineering service” and “Others”; others mainly represent the business Unit that manages the Group’s foreign operations.

Segment operating profit (loss) is determined in the same way that consolidated operating profit is determined under KIFRS without any adjustment for corporate allocations. The accounting policies used by each segment are consistent with the accounting policies used in the preparation of the consolidated financial statements. Segment assets and liabilities are determined based on separate financial statements of the entities instead of on a consolidated basis. There are various transactions between the reportable segments, including sales of property, plant and equipment and so on, that are conducted on an arm’s-length basis at market prices that would be applicable to an independent third party. For subsidiaries which are in a different segment from that of its immediate parent company, their carrying amount in separate financial statements is eliminated in the consolidating adjustments in the tables below. In addition, consolidation adjustments in the table below include adjustments of the amount of investment in associates and joint ventures from the cost basis amount reflected in segment assets to that determined using equity method in the consolidated financial statements.

30

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

4. Segment, Geographic and Other Information, Continued
(2) The financial information of the segments for each of the two years in the period ended December 31,2024, respectively, is as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Segment Total<br>segment<br>revenue Intersegment<br>revenue Revenue<br>from<br>external<br>customers Operating<br>profit (loss) Depreciation<br>and<br>amortization Interest<br>income Interest<br>expense Profit (loss) relatedto associates, jointventures andsubsidiaries
Transmission and distribution ~~W~~ 91,646,581 2,217,014 89,429,567 3,166,658 4,368,806 86,889 2,946,080 578,973
Electric power generation (Nuclear) 13,447,880 13,118,098 329,782 1,577,798 5,182,841 72,760 786,491 (20,548 )
Electric power generation<br>(Non-nuclear) 31,563,589 29,186,796 2,376,793 2,805,997 4,252,872 67,835 704,678 138,347
Plant maintenance & engineering service 3,266,873 2,765,640 501,233 405,389 164,749 26,262 7,144 185,548
Others 2,283,458 1,521,937 761,521 60,344 218,505 271,709 336,718
Consolidation adjustments (48,809,485 ) (48,809,485 ) 348,524 (190,418 ) (57,930 ) (116,016 )
~~W~~ 93,398,896 93,398,896 8,364,710 13,997,355 467,525 4,665,095 882,320
In millions of won
For the year ended December 31,2023
Segment Total<br>segment<br>revenue Intersegment<br>revenue Revenue<br>from<br>external<br>customers Operating<br>profit (loss) Depreciation<br>and<br>amortization Interest<br>income Interest<br>expense Profit (loss) relatedto associates, jointventures andsubsidiaries
Transmission and distribution ~~W~~ 85,825,593 1,728,602 84,096,991 (6,503,917 ) 4,258,909 92,380 2,826,916 314,373
Electric power generation (Nuclear) 10,798,378 10,666,260 132,118 797,309 4,403,610 69,209 687,743 (2,639 )
Electric power generation<br>(Non-nuclear) 35,159,641 32,253,979 2,905,662 951,217 4,180,939 65,403 741,282 301,681
Plant maintenance & engineering service 3,091,022 2,626,190 464,832 330,957 129,628 23,638 1,270 (389 )
Others 2,175,972 1,556,114 619,858 93,427 204,322 226,243 258,877
Consolidation adjustments (48,831,145 ) (48,831,145 ) (210,641 ) (145,145 ) (47,253 ) (64,429 )
~~W~~ 88,219,461 88,219,461 (4,541,648 ) 13,032,263 429,620 4,451,659 613,026

31

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

4. Segment, Geographic and Other Information, Continued
(3) The information related to segment assets and segment liabilities as of December 31, 2024 and 2023 isas follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2024
Segment Segment<br>assets Investments inassociates and<br>joint ventures Acquisition of<br>non-currentassets Segmentliabilities
Transmission and distribution ~~W~~ 139,472,103 6,839,513 8,417,992 120,083,068
Electric power generation (Nuclear) 72,508,359 171,956 2,629,626 47,082,862
Electric power generation (Non-nuclear) 66,834,569 4,272,928 3,862,287 36,363,754
Plant maintenance & engineering service 4,522,610 1,697 160,978 1,508,112
Others 14,977,126 195,451 7,073,716
Consolidation adjustments (51,506,972 ) (185,981 ) (6,666,550 )
~~W~~ 246,807,795 11,286,094 15,080,353 205,444,962
In millions of won
As of December 31, 2023
Segment Segment<br>assets Investments inassociates and<br>joint ventures Acquisition of<br>non-currentassets Segmentliabilities
Transmission and distribution ~~W~~ 138,838,342 5,872,000 7,636,677 120,181,250
Electric power generation (Nuclear) 70,535,018 169,155 3,070,528 45,660,916
Electric power generation (Non-nuclear) 66,265,884 3,567,345 3,490,863 38,415,202
Plant maintenance & engineering service 4,271,409 54,088 203,352 1,549,863
Others 13,378,229 736,155 6,480,959
Consolidation adjustments (53,573,917 ) (390,686 ) (9,837,975 )
~~W~~ 239,714,965 9,662,588 14,746,889 202,450,215

32

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

4. Segment, Geographic and Other Information, Continued
(4) Geographic information
--- ---

Electricity sales, the main operations of the Group, are conducted in the Republic of Korea. The following information on revenue from external customers and non-current assets is determined by the location of the customers and of the assets:

In millions of won Revenue from external customers Non-current assets (*2)
Geographical unit For the year endedDecember 31, 2024 For the year endedDecember 31, 2023 As of December 31,2024 As of December 31,2023
Domestic ~~W~~ 92,107,468 86,985,859 191,214,679 186,384,115
Overseas (*1) 1,291,428 1,233,602 4,757,463 4,822,845
~~W~~ 93,398,896 88,219,461 195,972,142 191,206,960
(*1) Middle East, America and other Asian countries make up the majority of overseas revenue and non-current assets.<br>Since the overseas revenue or non-current assets attributable to particular countries are not material, they are not disclosed individually.
--- ---
(*2) The amounts exclude financial assets, deferred tax assets and defined benefit assets.
--- ---
(5) Information on significant customers
--- ---

There is no single customer who accounts for 10% or more of the Group’s revenue for each of the two years in the period ended December 31, 2024.

33

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

5. Classification of Financial Instruments
(1) The classification of financial assets as of December 31, 2024 and 2023 is as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
Financial assetsat fair valuethrough profitor loss Financial assetsat fair valuethrough othercomprehensiveincome Financial assetsat amortized cost Derivative assets(applying hedgeaccounting) Total
Current assets
Cash and cash equivalents ~~W~~ 2,382,979 2,382,979
Current financial assets
Current financial assets at fair value through profit or loss 1,456,895 1,456,895
Current financial assets at amortized costs 20,418 20,418
Current derivative assets 396,477 364,077 760,554
Other financial assets 1,256,850 1,256,850
Trade and other receivables 12,216,216 12,216,216
1,853,372 15,876,463 364,077 18,093,912
Non-current assets
Non-current financial assets
Non-current financial assets at fair value through profit or loss 719,277 719,277
Non-current financial assets at fair value through other comprehensive income 674,850 674,850
Non-current financial assets at amortized costs 9,815 9,815
Non-current derivative assets 1,450,050 480,560 1,930,610
Other financial assets 1,611,438 1,611,438
Trade and other receivables 3,157,409 3,157,409
2,169,327 674,850 4,778,662 480,560 8,103,399
~~W~~ 4,022,699 674,850 20,655,125 844,637 26,197,311

34

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

5. Classification of Financial Instruments, Continued
(1) The classification of financial assets as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Financial assetsat fair valuethrough profitor loss Financial assetsat fair valuethrough othercomprehensiveincome Financial assetsat amortized cost Derivative assets(applying hedgeaccounting) Total
Current assets
Cash and cash equivalents ~~W~~ 4,342,887 4,342,887
Current financial assets
Current financial assets at fair value through profit or loss 2,054,021 2,054,021
Current financial assets at amortized costs 28,905 28,905
Current derivative assets 227,434 80,298 307,732
Other financial assets 716,739 716,739
Trade and other receivables 11,985,735 11,985,735
2,281,455 17,074,266 80,298 19,436,019
Non-current assets
Non-current financial assets
Non-current financial assets at fair value through profit or loss 657,264 657,264
Non-current financial assets at fair value through other comprehensive income 502,443 502,443
Non-current financial assets at amortized costs 9,938 9,938
Non-current derivative assets 503,514 189,148 692,662
Other financial assets 1,683,907 1,683,907
Trade and other receivables 2,193,587 2,193,587
1,160,778 502,443 3,887,432 189,148 5,739,801
~~W~~ 3,442,233 502,443 20,961,698 269,446 25,175,820

35

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

5. The classification of Financial Instruments, Continued
(2) The classification of financial liabilities as of December 31, 2024 and 2023 is as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- ---
Financial liabilities atfair value throughprofit or loss Financial liabilitiesrecognized at amortized cost Derivative liabilities(applying hedgeaccounting) Total
Current liabilities
Borrowings ~~W~~ 17,540,585 17,540,585
Debt securities 26,901,367 26,901,367
Derivative liabilities 23,914 23,914
Trade and other payables 9,411,315 9,411,315
23,914 53,853,267 53,877,181
Non-current liabilities
Borrowings 3,118,796 3,118,796
Debt securities 84,972,652 84,972,652
Derivative liabilities 256,018 4,893 260,911
Trade and other payables 4,609,241 4,609,241
256,018 92,700,689 4,893 92,961,600
~~W~~ 279,932 146,553,956 4,893 146,838,781
In millions of won As of December 31, 2023
Financial liabilities atfair value throughprofit or loss Financial liabilitiesrecognized at amortized cost Derivative liabilities(applying hedgeaccounting) Total
Current liabilities
Borrowings ~~W~~ 16,446,821 16,446,821
Debt securities 24,674,526 24,674,526
Derivative liabilities 18,379 18,379
Trade and other payables 9,089,973 9,089,973
18,379 50,211,320 50,229,699
Non-current liabilities
Borrowings 3,392,831 3,392,831
Debt securities 89,117,652 89,117,652
Derivative liabilities 410,291 23,564 433,855
Trade and other payables 4,981,957 4,981,957
410,291 97,492,440 23,564 97,926,295
~~W~~ 428,670 147,703,760 23,564 148,155,994

36

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

5. The classification of Financial Instruments, Continued
(3) The classification of comprehensive income (loss) from financial instruments for each of the two years inthe period ended December 31, 2024 is as follows:
--- ---
In millions of won For the yearendedDecember 31,2024 For the yearendedDecember 31,2023
--- --- --- --- --- --- --- ---
Cash and cash equivalents Interest income ~~W~~ 102,505 100,205
Gain (loss) on foreign currency transactions and translations 17,498 (2,073 )
Financial assets at fair value through profit or loss Interest income 54,385 65,470
Dividends income 4,813 4,193
Gain on valuation of derivatives 1,396,350 144,797
Gain on transaction of derivatives 129,471 130,230
Gain on valuation of financial assets 69,161 128,307
Gain on disposal of financial assets 45,059 13,161
Financial assets at fair value through other comprehensive income Dividends income 65,788 21,748
Financial assets at amortized cost Interest income 2,859 2,929
Gain (loss) on foreign currency transactions and translations 5,568 (1,774 )
Loans Interest income 45,511 44,029
Gain on foreign currency transactions and translations 3,685 127
Trade and other receivables Interest income 209,675 168,303
Gain on foreign currency transactions and translations 121,193 27,363
Short-term financial instruments Interest income 31,766 34,260
Long-term financial instruments Interest income 20,562 14,183
Gain on foreign currency transactions and translations 3
Other financial assets Interest income 262 241
Derivatives (applying hedge accounting) Gain on valuation of derivatives (profit or loss) 410,088 76,814
Gain (loss) on valuation of derivatives (equity, before tax) 21,443 (10,539 )
Gain on transaction of derivatives 14,801 19,604
Financial liabilities at fair value through profit or loss Gain on valuation of derivatives 52,515 961
Gain (loss) on transaction of derivatives 146,417 (80,640 )
Financial liabilities carried at amortized cost Interest expense of borrowings and debt securities 3,805,062 3,636,887
Interest expense of trade and other payables 191,918 200,440
Interest expense of others 668,115 614,332
Other finance income 8,882 4,971
Other finance expenses 4,177 1,796
Loss on foreign currency transactions and translations (2,643,230 ) (420,203 )
Derivatives (applying hedge accounting) Gain on valuation of derivatives (profit or loss) 244,758 11,627
Gain (loss) on valuation of derivatives (equity, before tax) (1,137 ) 2,021
Gain on transaction of derivatives 11,968 20,465

37

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

6. Restricted Deposits

Restricted deposits as of December 31, 2024 and 2023 are as follows:

In millions of won As ofDecember 31,2024 As ofDecember 31,2023
Cash and cash equivalents Escrow accounts ~~W~~ 3,280 3,010
Deposits for government project and others 30,812 26,969
Collateral provided for borrowings 211,522 190,525
Collateral provided for lawsuit 54 54
Deposits for transmission regional support program 8,959 9,481
Deposits for other business purposes 4,187 5,550
Short-term financial instruments Restriction on withdrawal related to ‘win-win growth<br><br><br>program’ for small and medium enterprises and others 83,520 80,500
Collateral provided for borrowings 85,569 24,728
Non-current financial assets at fair value through profit or loss Decommissioning costs of nuclear power plants 296,496 271,047
Long-term financial instruments Guarantee deposits for banking accounts at oversea branches 22 36
Collateral provided for borrowings 6,500 28,245
Decommissioning costs of nuclear power plants 660,000 655,030
Other non-current assets Deposits for other business purposes 9,150 7,558
~~W~~ 1,400,071 1,302,733
7. Cash and Cash Equivalents
--- ---

Cash and cash equivalents as of December 31, 2024 and 2023 are as follows:

In millions of won As ofDecember 31,2024 As ofDecember 31,2023
Cash ~~W~~ 17,941 14,070
Other demand deposits 1,712,130 1,780,548
Short-term deposits classified as cash equivalents 548,611 1,107,687
Short-term investments classified as cash equivalents 104,297 1,440,582
~~W~~ 2,382,979 4,342,887

38

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

8. Trade and Other Receivables
(1) Trade and other receivables as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
Gross amount Allowance for<br>doubtful accounts Present value<br>discount Book value
Current assets
Trade receivables ~~W~~ 11,266,202 (167,028 ) 11,099,174
Other receivables 1,160,945 (39,817 ) (4,086 ) 1,117,042
12,427,147 (206,845 ) (4,086 ) 12,216,216
Non-current assets
Trade receivables 1,089,787 (93,746 ) 996,041
Other receivables 2,272,127 (100,351 ) (10,408 ) 2,161,368
3,361,914 (194,097 ) (10,408 ) 3,157,409
~~W~~ 15,789,061 (400,942 ) (14,494 ) 15,373,625
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Gross amount Allowance for<br>doubtful accounts Present value<br>discount Book value
Current assets
Trade receivables ~~W~~ 11,239,601 (230,058 ) 11,009,543
Other receivables 1,034,655 (53,683 ) (4,780 ) 976,192
12,274,256 (283,741 ) (4,780 ) 11,985,735
Non-current assets
Trade receivables 207,668 (2,587 ) 205,081
Other receivables 2,080,830 (80,270 ) (12,054 ) 1,988,506
2,288,498 (82,857 ) (12,054 ) 2,193,587
~~W~~ 14,562,754 (366,598 ) (16,834 ) 14,179,322

39

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

8. Trade and Other Receivables, Continued
(2) Other receivables as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
Gross amount Allowance for<br>doubtful accounts Present valuediscount Book value
Current assets
Non-trade receivables ~~W~~ 403,248 (35,041 ) (21 ) 368,186
Accrued income 112,941 112,941
Deposits 293,712 (4 ) (4,065 ) 289,643
Finance lease receivables (*1) 92,130 (3,480 ) 88,650
Others 258,914 (1,292 ) 257,622
1,160,945 (39,817 ) (4,086 ) 1,117,042
Non-current assets
Non-trade receivables 243,813 (62,222 ) (41 ) 181,550
Accrued income 21,395 21,395
Deposits 486,868 (414 ) (10,367 ) 476,087
Finance lease receivables (*2) 1,264,269 (1,775 ) 1,262,494
Others 255,782 (35,940 ) 219,842
2,272,127 (100,351 ) (10,408 ) 2,161,368
~~W~~ 3,433,072 (140,168 ) (14,494 ) 3,278,410
(*1) The gross amount of finance lease receivables is the net lease investment by deducting unearned finance income<br>of ~~W~~121,170 million.
--- ---
(*2) The gross amount of finance lease receivables is the net lease investment by deducting unearned finance income<br>of ~~W~~956,968 million.
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Gross amount Allowance for<br>doubtful accounts Present valuediscount Book value
Current assets
Non-trade receivables ~~W~~ 393,859 (49,626 ) (53 ) 344,180
Accrued income 133,033 133,033
Deposits 317,541 (4 ) (4,727 ) 312,810
Finance lease receivables (*1) 75,661 (2,761 ) 72,900
Others 114,561 (1,292 ) 113,269
1,034,655 (53,683 ) (4,780 ) 976,192
Non-current assets
Non-trade receivables 198,453 (54,182 ) (102 ) 144,169
Accrued income 7,342 7,342
Deposits 441,721 (263 ) (11,952 ) 429,506
Finance lease receivables (*2) 1,173,500 (2,495 ) 1,171,005
Others 259,814 (23,330 ) 236,484
2,080,830 (80,270 ) (12,054 ) 1,988,506
~~W~~ 3,115,485 (133,953 ) (16,834 ) 2,964,698
(*1) The gross amount of finance lease receivables is the net lease investment by deducting unearned finance income<br>of ~~W~~114,118 million.
--- ---
(*2) The gross amount of finance lease receivables is the net lease investment by deducting unearned finance income<br>of ~~W~~943,316 million.
--- ---
(3) Trade and other receivables are classified as financial assets at amortized cost and are measured using the<br>effective interest rate method. No interest is accrued for trade receivables related to electricity for the duration between the billing date and the payment due dates. However, once trade receivables are overdue, the Group imposes a monthly<br>interest rate of 1.5% on the overdue trade receivables. The Group holds deposits of three months’ expected electricity usage for customers requesting temporary usage and customers with delinquent payments.
--- ---

40

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

8. Trade and Other Receivables, Continued
(4) The aging analysis of trade receivables as of December 31, 2024 and 2023 is as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Trade receivables not overdue ~~W~~ 12,010,590 11,120,582
Trade receivables overdue and impairment-reviewed: 345,399 326,687
Less than 60 days 12,289 6,403
60 ~ 90 days 59,427 55,802
90 ~ 120 days 21,642 20,535
120 days ~ 1 year 56,107 58,350
More than 1 year 195,934 185,597
12,355,989 11,447,269
Less: allowance for doubtful accounts (260,774 ) (232,645 )
~~W~~ 12,095,215 11,214,624

At the end of each reporting period, the Group assesses whether the credit to trade receivables is impaired. The Group recognizes loss allowances for trade receivables individually when there is any objective evidence that other receivables are impaired and significant and classifies the trade receivables that are not individually assessed as the trade receivables subject to be assessed on a collective basis. Also, the Group recognizes loss allowances based on an expected credit loss (ECL) model.

(5) The aging analysis of other receivables as of December 31, 2024 and 2023 is as follows:
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Other receivables not overdue ~~W~~ 3,212,146 2,857,337
Other receivables overdue and impairment-reviewed: 220,926 258,148
Less than 60 days 318 5
60 ~ 90 days 34,267 27,634
90 ~ 120 days 1,786 727
120 days ~ 1 year 59,567 69,651
More than 1 year 124,988 160,131
3,433,072 3,115,485
Less: allowance for doubtful accounts (140,168 ) (133,953 )
Less: present value discount (14,494 ) (16,834 )
~~W~~ 3,278,410 2,964,698

At the end of each reporting period, the Group assesses whether the credit to other receivables is impaired. The Group recognizes loss allowances for other receivables individually when there is any objective evidence that other receivables are impaired and significant, and classifies the other receivables that are not individually assessed as the other receivables subject to be assessed on a collective basis. Also, the Group recognizes loss allowances based on an expected credit loss (ECL) model.

41

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

8. Trade and Other Receivables, Continued
(6) Changes in the allowance for doubtful accounts for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- ---
Tradereceivables Otherreceivables Tradereceivables Otherreceivables
Beginning balance ~~W~~ 232,645 133,953 199,000 109,453
Bad debts expense 48,160 21,937 68,385 24,290
Write-off (17,157 ) (23,177 ) (26,109 ) (4,472 )
Reversal (12,928 ) (587 ) (5,577 ) (1,942 )
Others 10,054 8,042 (3,054 ) 6,624
Ending balance ~~W~~ 260,774 140,168 232,645 133,953

42

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

9. Financial Assets at Fair Value through Profit or Loss
(1) Financial assets at fair value through profit or loss as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Financial assets at fair value through profit or loss
Beneficiary certificate ~~W~~ 313 152,054 130,363 107,252
Cooperative 6,872 6,735
Others (*) 1,456,582 405,309 1,923,658 376,602
1,456,895 564,235 2,054,021 490,589
Financial assets designated as at fair value through profit or loss
Debt with embedded derivatives and others 155,042 166,675
~~W~~ 1,456,895 719,277 2,054,021 657,264

(*) Others include MMT, MMF etc.

(2) Details of income (loss) from financial assets at fair value through profit or loss for each of the twoyears in the period ended December 31, 2024 are as follows:
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- ---
Beneficiary certificate ~~W~~ 34,481 (59 )
Cooperative 118 272
Debt with embedded derivatives 2,435 2,934
Others 136,383 207,984
~~W~~ 173,417 211,131

43

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income
(1) Changes in financial assets at fair value through other comprehensive income for each of the two years inthe period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Acquisition Disposal Valuation Others Ending<br>balance
Equity securities
Listed ~~W~~ 285,054 (170 ) 73,891 1,321 360,096
Unlisted 212,762 4,000 88,256 4,691 309,709
497,816 4,000 (170 ) 162,147 6,012 669,805
Debt securities
Corporate bond 4,627 418 5,045
~~W~~ 502,443 4,000 (170 ) 162,565 6,012 674,850
Current financial assets at fair value through other comprehensive income ~~W~~
Non-current financial assets at fair value through other comprehensive income 502,443 4,000 (170 ) 162,565 6,012 674,850
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Acquisition Disposal Valuation Others Ending<br>balance
Equity securities
Listed ~~W~~ 300,057 430 (15,433 ) 285,054
Unlisted 202,243 9,550 (5,332 ) 5,445 856 212,762
502,300 9,980 (5,332 ) (9,988 ) 856 497,816
Debt securities
Corporate bond 529 4,080 18 4,627
~~W~~ 502,829 14,060 (5,332 ) (9,970 ) 856 502,443
Current financial assets at fair value through other comprehensive income ~~W~~
Non-current financial assets at fair value through other comprehensive income 502,829 14,060 (5,332 ) (9,970 ) 856 502,443

44

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Listed
Korea District Heating Corp. 2,264,068 19.55 % ~~W~~ 173,201 93,733 93,733
KG Mobility Co., Ltd. 12,205 0.01 % 428 46 46
SM Korea Line Corp. 180 0.00 % 1
Namkwang Engineering & Construction Co., Ltd. 46 0.00 % 15
Bumyang Construction Co., Ltd. 35 0.00 % 2
ELCOMTEC Co., Ltd. 32,875 0.04 % 217 34 34
PAN Ocean Co., Ltd. 1,492 0.00 % 14 5 5
HD Hyundai Marine Engine Co., Ltd.<br><br><br>(formerly, STX Heavy Industries Co., Ltd. 61,455 0.22 % 430 1,503 1,503
Codes Combine Co., Ltd. 291 0.00 % 1
PT Almatri Resources Indonesia (formerly, PT Adaro Energy Tbk.) 480,000,000 1.60 % 65,028 106,259 106,259
Denison Mines Corp. 58,284,000 7.46 % 84,134 155,766 155,766
Paladin Energy (formerly, Fission Uranium Corp. 100,000 0.01 % 41 74 74
KS Industry Co., Ltd (formerly, SangSangin Industry Co., Ltd.) 1,457 0.01 % 38 3 3
Vitzrosys Co., Ltd. 399 0.00 % 2
EMnI Co., Ltd. 628 0.00 % 25 1 1
Vissem electronics, Co., Ltd. 301 0.00 % 11 1 1
KC Industry Co., Ltd. 139 0.00 % 6
Aone Alform Co., Ltd. 2,672 0.04 % 19 3 3
Ihsung CNI Co., Ltd. 142,860 4.43 % 1,500 1,314 1,314
Kodaco Co., Ltd. 131,698 0.85 % 1,317 1,354 1,354
326,430 360,096 360,096
Unlisted (*1)
Set Holding (*2) 1,100,220 2.50 % ~~W~~ 229,255 258,974 258,974
SGC Greenpower Co., Ltd. 580,000 5.00 % 2,900 5,570 5,570
Le Soleil KHNP LLC 137,600 19.00 % 1,376 1,376 1,376
Ihsung CNI Co., Ltd. (Unlisted) 127,660 3.96 % 1,500 2,160 2,160
H Robotics Co., Ltd. 903,601 7.05 % 4,000 331 331
Good Tcells Co., Ltd. 11,364 0.33 % 500 571 571
IPS Bio Co., Ltd. 1,975 3.13 % 1,000 896 896
Nine B Co., Ltd. 5,000 4.96 % 1,000 1,000 1,000
Orano Expansion 5,742,405 4.72 %
Common Computer Co., Ltd. 3,856 1.64 % 1,000 1,189 1,189
Fine Powerex Co., Ltd. 72,633 4.58 % 1,500 1,610 1,610
Agencore Co., Ltd. 175,779 8.08 % 2,200 2,514 2,514
SamHong Machinery Co., Ltd. 617,535 11.06 % 7,000 8,318 8,318
Aloha Factory Co., Ltd. 2,970 3.70 % 1,000 552 552
Dailyshot Co., Ltd. 1,695 1.85 % 1,001 1,250 1,250
Mediquitous Co., Ltd. 5,080 0.58 % 1,250 1,442 1,442
Black Materials Co., Ltd. 37,038 8.31 % 500 500 500
Monit Co., Ltd. 166,667 7.14 % 1,000 1,000 1,000
3i Powergen Inc. 15.00 % 1,482
Enersys Co., Ltd. 9,763 19.62 % 2,050 2,050 2,050
Kalman Co., Ltd. 23,172 9.54 % 1,000 1,000 1,000
Himet Co., Ltd. 1,754,386 13.93 % 5,000 5,000 5,000
PT. Kedap Sayaaq 671 10.00 % 18,540
Joongang Platec Co., Ltd. 3,591 0.75 % 72 35 35
Pioneer Gas Power Limited (*5) 123,200,010 38.50 % 49,831
Bobaek C&S Co., Ltd. 13,246 0.87 % 2,000 2,000 2,000
BDI Co., Ltd. (*3,4) 6,390,478 32.50 %
Hwan Young Steel Co., Ltd. 10,916 0.14 % 1,092 97 97

45

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
SAMBO AUTO. Co., Ltd. 15,066 0.02 % ~~W~~ 38 38 38
Mobo Co., Ltd. 504 0.00 % 14 14 14
Dae Kwang Semiconductor Co., Ltd. 589 0.07 % 6 6 6
Sanbon Department Store 828 0.01 % 124 3 3
Miju Steel Mfg. Co., Ltd. 1,097 0.23 % 50 50 50
Sungwon Co., Ltd. 117 0.07 % 29 29 29
IMHWA Corp. 329 0.11 % 5 5 5
DALIM Special Vehicle Co., Ltd. 58 0.08 % 10 10 10
Moonkyung Silica Co., Ltd. 42 0.56 %
Sungkwang Timber Co., Ltd. 3 0.08 % 5 5 5
KS Remicon Co., Ltd. 12 0.04 % 3 3 3
Pyungsan SI Co., Ltd. 434 0.01 % 4 4 4
Samgong Development Co., Ltd. 12 0.01 % 7 7 7
Joongang Development Co., Ltd. 540 0.12 % 8 8 8
Newasia Co., Ltd. 12,906 0.23 % 32 32 32
MSE Co., Ltd. 429 0.13 % 9 9 9
Ilrim Nano Tec Co., Ltd. 1,520 0.07 % 15 15 15
Ilsuk Co., Ltd. 152 0.17 % 10 10 10
Zyle Daewoo Motor Sales Co., Ltd. 22 0.00 %
Daewoo Development Co., Ltd. 8 0.00 %
Seyang Inc. 537 0.05 % 27 30 30
Seungri Enterprise Co., Ltd. 93 0.05 % 3 3 3
Shin-E P&C Co., Ltd. 1,569 0.64 % 110 2 2
Ejung Ad Co., Ltd. 132 0.09 % 3 3 3
Solvus Co., Ltd. 1,056 0.04 % 3 3 3
Myung Co., Ltd. 89 0.05 % 2 2 2
Biwang Industry Co., Ltd. 406 0.04 % 2 2 2
Young Sung Co., Ltd. 89 0.40 % 27 27 27
Yuil Industrial Electronics Co., Ltd. 804 0.32 % 16 16 16
Woojin Industry Corporation 3 0.00 % 16 16 16
Kwang Sung Industry Co., Ltd. 325 0.35 % 7 7 7
Woojoo Environment Ind. Co., Ltd. 101 0.11 % 13 13 13
Hyungji Esquire Co., Ltd. 61 0.02 % 22 23 23
Morado Co., Ltd. 209 0.04 % 2 2 2
Myung Sung Tex Co., Ltd. 20 0.00 % 2 2 2
Kwang Sung Co., Ltd. 610 0.53 % 31 31 31
Seen Business and Technology co., Ltd. 29,424 0.73 % 147 7 7
Woobang Construction Co., Ltd. 8 0.00 % 8 8 8
Shin Pyung Co., Ltd. 6 0.03 % 3 3 3
JMC Heavy Industries Co., Ltd. 2,724 0.10 % 27 2 2
Najin Steel Co., Ltd. 37 0.06 % 5 5 5
Sinkwang Industry Co., Ltd. 1,091 1.68 % 5 6 6
Elephant & Friends Co., Ltd. 563 0.61 % 3 3 3
Mireco Co., Ltd. 109 0.25 % 11 11 11
L&K Industry Co., Ltd. 1,615 0.60 % 24 24 24
JO Tech Co., Ltd. 1,263 0.62 % 25 25 25
Kendae Printing Co., Ltd. 422 0.60 % 21 21 21
Dauning Co., Ltd. 231 0.41 % 6 6 6
Korea Trecision Co., Ltd. 22 0.45 % 5 5 5
Hurim Biocell Co., Ltd. 1,021 0.00 % 5 5 5
Beer Yeast Korea Inc. 1,388 0.43 % 7 7 7

46

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
B CON Co., Ltd. 96 1.16 % ~~W~~ 6 6 6
Ace Integration Co., Ltd. 105 0.09 % 23 23 23
AceInti Agricultural Co., Ltd. 16 0.02 % 5 5 5
KyungDong Co., Ltd. 130 0.01 % 1 1 1
ChunWon Development Co., Ltd. 193 0.19 % 39 39 39
SungLim Industrial Co., Ltd. 29 0.03 % 1 1 1
Korea Minerals Co., Ltd. 191 0.05 % 135 1 1
HyoDong Development Co., Ltd. 128 0.16 % 25 1 1
JoHyun Co., Ltd. 350 1.56 % 18 18 18
KC Co., Ltd. 5,107 0.17 % 26 26 26
SeongJi Industrial Co., Ltd. 41 0.05 % 1 1 1
Seyang Precision Ind.Co., Ltd. 829 0.23 % 41 41 41
Dooriwon Food System Co., Ltd. 13 0.27 % 1 1 1
Sung Kwang Co., Ltd. 23 0.37 % 6 6 6
Shinheung petrol. Co., Ltd. 699 0.14 % 35 35 35
Samsung Tech Co., Ltd. 486 1.28 % 97 36 36
Sevenvalley JC 24 0.02 % 12 12 12
Han Young Technology Company Co., Ltd. 35 0.00 %
Ptotronics Co., Ltd. 843 0.42 % 84 6 6
Hyundaitech Co., Ltd. 1,363 0.87 % 27 27 27
Dasan Material Co., Ltd. 29 0.04 % 22 22 22
Fish World Co., Ltd. 47 0.21 % 2 2 2
Samdo Industry Electric Co.,Ltd. 48 0.02 %
Shinsei Trading Co., Ltd. 64 0.72 % 5 5 5
Dynamic Co., Ltd. 111 0.19 % 3 3 3
Green Alchemy Co.,Ltd. 38,202 1.48 % 191 17 17
KM Leatech Co., Ltd. 1,648 0.98 % 8 8 8
Semist Co.,Ltd. 555 0.80 % 3 3 3
Sewon Bus Co.,Ltd. 12 0.00 %
Enertec Co., Ltd. 7,937 0.19 % 44 44 44
Bellie Doughnuts Co., Ltd. 169 0.19 % 10 10 10
Choheung packing Co., Ltd. 61 0.13 % 12 12 12
Jaewoo Co., Ltd. 359 0.24 % 12 11 11
Wooyang HC Co., Ltd 1,375 0.01 % 159 13 13
TheYeonriji Co., Ltd. 116 0.10 % 6 6 6
Flusys Co., Ltd. 9 0.08 % 2 2 2
DongSeo Electronics Co., Ltd. 347 0.07 % 17 17 17
Daewoo Display Co., Ltd. 177 0.03 % 5 5 5
NTS Co., Ltd. 143 0.22 % 36 36 36
AID CO., Ltd. 1,212 0.57 % 36 36 36
Changwon Eco-friendly farming Corp. 3 0.01 %
Kumo Hitech Co., Ltd. 6,697 0.53 % 100 32 32
Kyung Pyo Industry Co., Ltd. 186 0.76 % 19 19 19
Doosung Heavy Industries Co., Ltd. 53 0.06 % 5 5 5
Samjoo Hightech Co., Ltd. 522 0.08 % 3 3 3
Samkwang Chemical Co., Ltd. 204 1.27 % 51 51 51
Shinseung Chemical Industy Co., Ltd. 5 0.01 % 60
KJ Alloy Co., Ltd. 368 0.20 % 7 7 7
SM Hi-tech Co., Ltd. 22 0.39 % 22 22 22
Puruen Environment Co., Ltd. 967 1.34 % 20 20 20
Miretech Co., Ltd. 9,111 0.27 % 18 18 18
Sejin Hightech Co., Ltd. 17,980 0.16 % 18 18 18
Eun Sung Enterprise Co., Ltd. 1,131 0.72 % 17 17 17
Shinyoung Textiles Co., Ltd. 523 1.01 % 52 23 23

47

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Ilwoo Steel Co., Ltd. 41 0.28 % ~~W~~ 16 17 17
Dong-un Tech Co., Ltd. 1,159 6.28 % 81 34 34
Wongwang Door Corp. 575 1.00 % 29 29 29
Eanskorea Co., Ltd. 39 0.05 % 2 2 2
Youngdongseafood Co., Ltd. 165 0.33 % 8 8 8
Hyunwoo Winstar Co., Ltd. 1 0.00 %
Sungchang Tech Co., Ltd. 159 0.31 % 10 19 19
Yuchang Industry Co., Ltd. 90 0.11 % 5 5 5
Jeongpum Co., Ltd. 322 0.35 % 16 16 16
Korea Steel Power Co., Ltd. 2,761 1.88 % 55 2 2
Caffe Bene Co.,Ltd. 1,908 0.03 % 9 9 9
Jinhung Packaging Co., Ltd. 4,329 3.02 % 22 22 22
Donglim Eng Co., Ltd. 26 0.11 % 3 3 3
SIP Co., Ltd. 274 0.55 % 7 7 7
Daeji Product Co., Ltd. 15 0.05 % 1
SSET Co., Ltd. 181 0.30 % 18 18 18
Sewon PM Tech Co., Ltd. 963 1.11 % 48 48 48
Dawon Yuhwa Co., Ltd. 506 1.94 % 25 25 25
Ewon materials Co., Ltd. 834 0.51 % 83 6 6
KMLC Co., Ltd. 281 0.14 % 22 22 22
Seinfood Co., Ltd. 13 0.17 % 7 7 7
TaeSung Eco-Tech. Co., Ltd. 1,368 4.55 % 34 34 34
Kukex Inc. 639 0.05 % 3 3 3
Chang won Engineering Co., Ltd. 22 0.00 % 4 4 4
Samsung Silup Co., Ltd. 47 0.19 % 5 5 5
Samwon Bio Tech Co., Ltd. 390 0.25 % 6 6 6
IZU KOREA Co., Ltd. 48 0.00 % 2 2 2
Dongdo CNP Co., Ltd. 234 0.36 % 6 6 6
S.I.T. Co.,Ltd 2,213 0.44 % 22 22 22
Taejin Hiech Co., Ltd. 78 0.26 % 3 3 3
Headone Co.,Ltd. 69 0.12 % 7 7 7
E-Won Solutech Co., Ltd. 158 0.16 % 40 40 40
KPL Circuit Co., Ltd. 283 0.08 % 14 14 14
Road Solar Co., Ltd. 12 0.00 %
Han Mi Flexible Co., Ltd. 143 0.20 % 43 43 43
Millennium PNT Co., Ltd. 227 0.37 % 6 6 6
Dae Myung Co., Ltd. 114 0.08 % 3 3 3
Young San Heavy Industries Co., Ltd. 74 0.11 % 7 7 7
Samchungwon Co., Ltd. 15 0.24 % 2 2 2
Wooyang Frozen Foods Co., Ltd. 66 0.82 % 27 27 27
Nanomic Co., Ltd. 94 0.63 % 38 38 38
Samsung Nonferrous Metal Co., Ltd. 89 0.26 % 9 9 9
Daewha Fuel Pump Ind., Ltd. 83 0.05 % 10 10 10
WorldCnM Inc. 131 1.09 % 10 10 10
Superone Co., Ltd. 1,585 1.45 % 8 8 8
Buyoung Panji Co., Ltd. 478 0.44 % 12 12 12
International Paint Korea Co., Ltd. 111 0.48 % 11 11 11
EI Lighting Co., Ltd. 358 0.36 % 18 18 18
Yooseung Co., Ltd. 10 0.08 % 1 1 1
Sungkwang Co., Ltd. 48 0.35 % 2 2 2
Ajin KSB Co., Ltd. 204 0.31 % 18 18 18
Sewon Ceramic Co., Ltd. 530 1.01 % 5 5 5
Choyang Tech Co., Ltd. 465 1.01 % 23 23 23

48

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
TK Co., Ltd. 307 0.70 % ~~W~~ 15 15 15
Arari Co., Ltd. 14 0.05 % 1 1 1
C&S Corporation Co., Ltd. 1,304 0.01 % 13 13 13
Global The One of Korea Co., Ltd. 62 0.06 % 3 3 3
Steellife Co., Ltd. 85 0.06 % 4 4 4
Geumhan Co., Ltd. 498 0.24 % 7 7 7
Mokgan Co., Ltd. 5 0.02 % 1 1 1
Wenex Co., Ltd. 373 0.53 % 19 19 19
Sulim Co., Ltd. 30 0.20 % 6 6 6
Shinkwang Engineering 24 0.36 % 2 2 2
Ek Cookware Co., Ltd. 60 0.04 % 1 1 1
KTTW Co., Ltd. 28 0.05 % 2 2 2
Avajar Co., Ltd. 1,061 0.01 % 1 1 1
Woosung I.B. Co., Ltd. 7,071 0.07 % 14 14 14
CAP Korea Co., Ltd. 16 0.30 % 3 3 3
MSM Co., Ltd. 25 0.08 %
Ddpopstyle Co., Ltd. 22 0.14 %
Finemetal Co., Ltd. 49 0.08 % 1 1 1
Sungkyeong Co., Ltd. 52 0.24 % 2 2 2
Newko Co., Ltd. 331 0.06 % 10 10 10
Dongsung Mulsan Co., Ltd. 137 0.34 % 14 14 14
Pizzakorea Co., Ltd. 42 0.18 % 9 9 9
Geumdani Co., Ltd. 2,377 1.82 % 36 36 36
Mezzanine I-pack Co., Ltd. 38 0.02 % 1 1 1
Ltop Co., Ltd. 36 0.06 % 7 7 7
Simile Aluminium Co., Ltd. 428 0.31 % 9 9 9
GT Tooling Co., Ltd. 604 0.17 % 6 6 6
Team Korea Co., Ltd. 4,782 0.37 % 24 24 24
Donghwa TCA Co., Ltd. 1,012 0.30 % 25 25 25
Hankook Piaget Co., Ltd. 4 0.01 %
Coco Food Co., Ltd. 648 1.24 % 32 32 32
Woori Industry Co., Ltd. 102 1.05 % 20 20 20
Ssangyong Youngweol Plant Service&Engineering Co., Ltd. 83 0.07 % 4 1 1
SH Co., Ltd. 39 0.20 % 8 8 8
Daeyoung Co., Ltd. 75 0.01 % 8 8 8
Getron Co., Ltd. 7,259 0.20 % 36 4 4
Jungmun Co., Ltd. 19 0.26 % 2 2 2
JM Tech Co., Ltd. 403 0.67 % 81 10 10
Choigang-gujo Co., Ltd. 61 0.45 % 6 1 1
Hosungsteel Co., Ltd. 323 0.26 % 14 3 3
Uktae IND. Co., Ltd. 140 0.12 % 7 1 1
JFC Co., Ltd. 16 0.01 % 2 2 2
Hyundai Tech Co., Ltd. 28 0.69 % 10 10 10
Daeil Co., Ltd. 301 0.42 % 15 2 2
Daehyeon Recycle Co., Ltd. 59 0.61 % 12 12 12
Metal Link Inc. Co., Ltd. 709 0.17 % 35 4 4
Pipetec Korea Co., Ltd. 50 0.07 % 10 1 1
SungJin Tech Co., Ltd. 803 1.20 % 24 8 8
Yujin E&C Co., Ltd. 29 0.18 % 6
Daishin Logistics Co., Ltd. 13 0.09 % 1 1 1
JinSung Engineering Co., Ltd. 18 0.30 % 18 18 18
Yongho Industry Co., Ltd. 157 0.22 % 32 2 2
Wow tech Co., Ltd. 369 0.75 % 11 11 11

49

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
World Power Tech Co., Ltd. 16 0.28 % ~~W~~ 24 24 24
PBM Auto Co., Ltd. 1,001 1.06 % 10 10 10
K2 Motors Co., Ltd. 54 0.28 % 1 1 1
CL Tech Co., Ltd. 801 2.25 % 40 40 40
Mirae Industry Co., Ltd. 39 0.04 % 6 6 6
Gentak Korea Co., Ltd. 301 0.31 % 8 8 8
Sungjin Chemical Co., Ltd. 118 0.36 % 4 4 4
LMAT Co., Ltd. 198 0.04 % 20 20 20
Poong Lim Industrial Co., Ltd. 25 0.00 % 38 38 38
Dae Sung GeoTech Co., Ltd. 631 1.28 % 32 32 32
Saeheemang Co., Ltd. 756 0.60 % 15 15 15
Vornech Co., Ltd. 431 0.37 % 11 2 2
Woojin Formtech Co., Ltd. 76 0.08 % 8 1 1
Korea Engineer Manufacturing Co., Ltd. 114 0.26 % 6 1 1
Sinwa J&K Co., Ltd. 476 0.28 % 5 5 5
Owon E&G Co., Ltd. 132 0.20 % 4 4 4
Guseong Co., Ltd. 141 0.20 % 4 4 4
Irefarm Co., Ltd. 45 0.30 % 3 3 3
Haenarae Agricultural Corp. 15 0.03 % 2 2 2
DECO&E Co., Ltd. 1,261 0.00 % 2 2 2
Design Beyond Co., Ltd. 17 0.19 % 2 2 2
LBK Co., Ltd. 8 0.05 % 2 2 2
Duckwon industrial Co., Ltd. 32 0.43 % 13 13 13
ASPT Co., Ltd. 64 0.82 % 19 19 19
SIMA Co., Ltd. 29 0.05 % 3 3 3
Jingkang Resources Co., Ltd. 90 1.57 % 13 13 13
CIC Tech Co., Ltd. 96 0.54 % 10 10 10
Fourever Co., Ltd. 44 0.10 % 4 4 4
Myungil Metal Co., Ltd. 80 0.10 % 4 4 4
Daeshin ECM Co., Ltd. 182 0.30 % 9 9 9
Greencarbon Co., Ltd. 79 0.06 % 1 1 1
Sunkoo Co., Ltd. 4 0.10 % 2 2 2
Jians Construction Co., Ltd. 45 0.01 % 2 4 4
DH trading Co., Ltd. 891 0.04 % 178
Sangsin Co., Ltd. 29 0.09 % 16 16 16
Steel focus Co., Ltd. 154 0.20 % 5 5 5
Kamada Korea Co., Ltd. 437 0.33 % 23 23 23
Fosys Co., Ltd. 19 0.08 % 4 4 4
GB precision Co., Ltd. 137 0.57 % 1 1 1
Ewon Art Co., Ltd. 185 0.61 % 9 9 9
DI Tech Co., Ltd. 3 0.00 % 1
Hans AD Co., Ltd. 33 0.35 % 2 2 2
Chaegim Environment Development Co., Ltd. 158 0.01 % 4 3 3
Daesung Stain Co., Ltd. 32 0.32 % 2 1 1
U&I Co., Ltd. 50 0.22 % 5 5 5
World One Co., Ltd. 401 0.58 % 10 10 10
Yewon Co., Ltd. 24 0.02 % 1 1 1
TSNT Co., Ltd. 119 0.00 % 24 24 24
Shinsung Tech Co., Ltd. 314 0.01 % 16 16 16
Loft Garden Co., Ltd. 1 0.04 %
Handon Co., Ltd. 74 0.25 % 11 11 11
GH Tech Co., Ltd. 82 0.22 % 3 3 3
Daeo Co., Ltd. 13 0.23 % 4 4 4

50

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Bokwang Co., Ltd. 76 0.00 % ~~W~~ 15 15 15
Samkum Industry Co., Ltd. 201 0.48 % 40 40 40
Dyntex Korea Co., Ltd. 75 0.28 % 15 15 15
Mirae Engineering Co., Ltd. 66 0.15 % 1 1 1
Ilshin Tech Co., Ltd. 36 0.00 % 7 7 7
Sukwon Co., Ltd. 2,885 0.59 % 29 29 29
White&Clean Foods Co., Ltd. 330 0.00 % 3 3 3
Michang Cable Co., Ltd. 1,096 0.13 % 16 16 16
G.M Foods Co., Ltd. 57 0.16 % 9 9 9
Wecan Global Inc. Co., Ltd. 165 0.08 % 8 8 8
Daeju Steel Co., Ltd. 11 0.20 % 1
Hyundai Glass Co., Ltd. 860 0.83 % 43 43 43
MEC Co., Ltd. 16,468 1.17 % 41 41 41
Daeyeoneco Co., Ltd. 151 0.00 % 15 15 15
Hyesung Cable&Communication Inc. 762 0.39 % 38 38 38
Sangjin Co., Ltd. 428 0.35 % 21 21 21
Iksan-guwon Co., Ltd. 563 0.00 % 11 11 11
Korea Remicon Co., Ltd. 36 0.03 % 5 5 5
New Tech Co., Ltd. 23 0.15 % 2 2 2
Segeon Co., Ltd. 124 0.00 % 4 4 4
MS Tech Co., Ltd. 9 0.15 % 1 1 1
J.I Steel Co., Ltd. 21 0.00 % 2 2 2
HNT Co., Ltd. 172 0.00 % 9 9 9
Taejin Co., Ltd. 27 0.08 % 3 3 3
Macroad Co., Ltd. 953 0.17 % 10 10 10
Woongjin Energy Co., Ltd. 94 0.00 % 9 9 9
Eunsung Industrial Co., Ltd. 3 0.03 %
KPE Co., Ltd. 51 0.19 % 13 13 13
Dongbangfarms Co., Ltd. 904 0.55 % 40 4 4
Altron Jeonju Co., Ltd. 34,846 1.34 % 697 5 5
K Shipbuilding Co., Ltd. 8,622 0.25 % 1,078 1,078 1,078
Shinjin International Corporation Co., Ltd. 4 0.01 % 1 1 1
RMK Co., Ltd. 63 0.90 % 22 22 22
Andong Trading Corporation Co., Ltd. 42 0.00 % 2 2 2
Seokjin E&T Co., Ltd. 81 0.06 % 8 8 8
Seohan Food Co., Ltd. 83 0.19 % 2 2 2
JSL Co., Ltd. 51 0.49 % 3 3 3
Seil Textile Co., Ltd. 16 0.15 % 3 3 3
Sungdo Pack Co., Ltd. 15 0.06 % 1 1 1
Coffeenie Co., Ltd. 2 0.00 %
Medi Pharma Plan Co., Ltd. 1,075 0.26 % 108 7 7
Woori Ascon Co., Ltd. 25 0.34 % 10 10 10
Cheonwoo E.P.S Co., Ltd. 371 1.10 % 19 19 19
Koa Tech Co., Ltd. 1,244 0.77 % 12 12 12
SKE Cable Co., Ltd. 120 0.08 % 6 6 6
Hi Korea Co., Ltd. 1,845 1.94 % 185 21 21
Daeheung Engineering Co., Ltd. 65 0.01 % 1 1 1
Etapol Co., Ltd. 1,361 0.54 % 41 41 41
Yoongwon Korea Co., Ltd. 157 1.47 % 31 31 31
Avoh Ceramic&Bath Co., Ltd. 173 0.14 % 3 3 3
Dongyang R.P.F. Industrial Co., Ltd. 59 0.03 % 2 2 2
Yuil Engineering Co., Ltd. 14 0.03 % 1 1 1
Taesan Co., Ltd. 146 0.69 % 35 35 35

51

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Thermo Tec Co., Ltd. 446 0.03 % ~~W~~ 4 4 4
DaeYang Hydro Co., Ltd. 6 0.02 % 1 1 1
SangMoo Steel Co., Ltd. 24 0.04 % 2 2 2
Jungin Distribution Co., Ltd. 17 0.00 % 3 3 3
TheSun Co., Ltd. 77 0.06 % 1 1 1
ChoungHwa Precise Co., Ltd. 428 0.08 % 43 4 4
Snopa Co., Ltd. 458 0.01 % 5 5 5
SKD Korea Co., Ltd. 40 0.28 % 20 20 20
Samhyup Co., Ltd. 376 0.91 % 38 38 38
Gogang Aluminum Co., Ltd. 828 1.52 % 41 41 41
Taekwang Paper Board Co., Ltd. 133 0.49 % 23 23 23
NY Tech Co., Ltd. 33 0.15 % 2 2 2
Dongbang Metal Co., Ltd. 1,985 0.32 % 20 20 20
Samwang Co., Ltd. 170 0.25 % 17 17 17
Guseul Co., Ltd. 89 0.23 % 9 9 9
Gaone International Co., Ltd. 54 0.29 % 14 14 14
Dongyang Pratech Co., Ltd. 265 1.21 % 29 29 29
Samjin Placo Co., Ltd. 661 0.52 % 33 33 33
MS Steel Industrial Co., Ltd. 167 0.40 % 8 8 8
STS Global Co., Ltd. 9 0.04 %
Y Tech Co., Ltd. 855 0.65 % 34 34 34
J&J Tech Co. 14 0.22 % 1 1 1
Shield Board Co., Ltd. 165 0.15 % 3 3 3
SFC International Co., Ltd. 11 0.01 % 1 1 1
Hana ITM Inc. 8,443 0.70 % 84 84 84
Jeuvis Co., Ltd. 191 0.30 % 2 2 2
JBM Co., Ltd. 662 0.34 % 20 20 20
Jungwoo Metal Solution Co., Ltd. 27 0.08 % 2 2 2
MS Precision Co., Ltd. 220 0.16 % 22 22 22
YM Tech Co., Ltd. 2 0.01 %
C&C ENG Co., Ltd. 439 1.59 % 22 22 22
Daejoo E&G Co., Ltd. 133 0.00 % 27 27 27
Taeyoung Precision Co., Ltd. 31 0.22 %
Shin Heung Precision Co., Ltd. 93 4.63 % 4 4 4
TaeGwang P&C Co., Ltd. 530 0.90 % 13 13 13
KyeongGwang Tech Co., Ltd. 244 1.04 % 7 7 7
Wonil Image Maker Inc. 16 0.04 %
Vehicle System Co., Ltd. 225 0.19 % 23 23 23
Moohan Enterprise Co., Ltd. 63 0.12 % 3 3 3
C&A Industries Co., Ltd. 42,062 0.26 % 21 21 21
CH Solution Co., Ltd. 1,456 0.16 % 4 4 4
Value Invest Korea Co., Ltd. 8 0.00 % 2 2 2
HNT Co., Ltd. 8,567 0.09 % 9 9 9
Sunquen Co., Ltd. 4 0.01 %
Shabath Co., Ltd. 48 0.04 % 6 6 6
Woori Elec Co., Ltd. 102 0.17 % 6 6 6
Dong-Yang Special Casting Co., Ltd. 1,027 0.41 % 21 21 21
Haegang Industry Co., Ltd. 1,687 1.13 % 25 25 25
Daone Co., Ltd. 860 0.23 % 9 9 9
Yeowoon Co., Ltd. 3 0.00 % 1 1 1
Evertrue Co., Ltd. 15 0.00 % 1 1
Libechen Co., Ltd. 151 0.13 % 8 8 8
Hongin Co., Ltd. 149 0.22 % 45 45 45
Bolim Co., Ltd. 37 0.10 % 5 5 5
Neo Life Co., Ltd. 19 0.04 %
T-Eng Co., Ltd. 123 1.05 % 25 25 25
Badanuri 8 0.10 % 2 2 2
Ki Soo Precision Co., Ltd. 325 0.44 % 98 27 27
DNGV 5,516 0.14 % 11 11 11

52

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
BJ Korea 446 0.81 % ~~W~~ 40 40 40
R&S Co., Ltd. 291 0.61 % 4 4 4
Daekyoung Co., Ltd. 85 0.66 % 17 17 17
Dongyang Environment 141 0.38 % 7 7 7
KEE Co., Ltd. 64 0.63 % 13 13 13
Asia Platech Co., Ltd. 932 3.59 % 47 47 47
HyoChang Industrial Co., Ltd 10,930 0.59 % 5 5 5
Semin Environmental Design Co., Ltd. 14 0.04 %
JungAng PNA Co., Ltd. 385 0.61 % 8 8 8
CNEGS Co., Ltd. 80 0.07 % 7 7 7
HaeDeuRim Co., Ltd. 70 0.41 % 11 11 11
CMTI Co., Ltd. 65 0.15 % 2 2 2
JMT Co., Ltd. 6,133 0.39 % 15 15 15
SeJung Precision Industrial Co., Ltd. 141 0.43 % 14 14 14
SGTech 30 0.66 % 3 3 3
OhBakSaDatkeom Co., Ltd. 52 0.23 % 3 3 3
GeumChangHwaseom Co., Ltd. 119 1.02 % 12 12 12
SeongMinSusan Co., Ltd. 371 0.09 % 4 4 4
DreamFact Co., Ltd. 77 0.10 % 3 3 3
DonEWorld Co., Ltd. 125 0.68 % 10 10 10
DongSuh Co., Ltd. 18 0.23 % 2 2 2
Dondodam Co., Ltd. 262 0.34 % 13 13 13
Vision Food Co., Ltd. 1,732 1.00 % 87 87 87
A One Metal Co., Ltd. 156 0.89 % 16 16 16
ECO Plus Co., Ltd. 2,786 0.91 % 3 3 3
Seong An Synthetics Co., Ltd. 200,684 2.91 % 2,007 2,007 2,007
DaeWoon Tech Co., Ltd. 106 0.26 % 3 3 3
KoWEEO Co., Ltd. 38 0.05 % 2 2 2
IK Co., Ltd. 14 0.06 % 1 1 1
Eco Join Co., Ltd. 145 0.03 % 2 2 2
Yuk Hwawon Co., Ltd. 567 0.25 % 12 12 12
Yun Hwawon FND Co., Ltd. 496 0.84 % 25 25 25
GoRyeoInSam Co., Ltd. 197 0.41 % 30 30 30
HyeJin IND Co., Ltd. 77 0.26 % 4 4 4
Cheongsong JungAng Aluminum Co., Ltd. 1,300 0.14 % 20 20 20
Easy Tape Co., Ltd. 144 0.30 % 14 14 14
Gyeonganaseukon 51 0.85 % 10 10 10
Biseullo Co., Ltd. 11 0.03 % 1 1 1
Cest Co., Ltd. 152 1.43 % 76 76 76
MDT Co., Ltd. 57 0.30 % 6 6 6
KDP Sieori Co., Ltd. 511 0.50 % 6 6 6
KREMS Co., Ltd. 868 0.81 % 347 347 347
Hanam Industrial Co., Ltd. 87 0.80 % 13 13 13
R Light Co., Ltd. 437 0.41 % 5 5 5
Daewon SNP Co., Ltd. 2,656 0.44 % 93 93 93
Goryeo Filter Co., Ltd. 31 0.07 % 2 2 2
Daehan Special Metal Co., Ltd. 2,326 5.89 % 931 931 931
Hungaforming Co., Ltd. 397 0.64 % 20 20 20
HyeopJin PL Co., Ltd. 7,889 0.72 % 39 39 39
Seun Co., Ltd. 61 0.69 % 3 3 3
AOS Co., Ltd. 25 0.16 % 1 1 1
SamHan Industrial Co., Ltd. 215 0.45 % 3 3 3

53

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
YangJI EnterPrise Co., Ltd. 16 0.04 % ~~W~~ 3 3 3
GyungNam Metal Co., Ltd. 698 0.07 % 17 17 17
Yoolim industrial Co., Ltd. 1,560 1.98 % 234 234 234
Haemirae Co., Ltd. 57 0.25 % 4 4 4
KROPC Co., Ltd. 1,297 1.19 % 26 26 26
Mirae Seesco Co. Ltd. 17 0.04 % 2 2 2
SungMin Industrial Co., Ltd. 229 2.80 % 34 34 34
Kunyang Co., Ltd. 44 0.12 % 4 4 4
CAT Co., Ltd. 40 0.27 % 3 3 3
JeongJin Nurimaru Co., Ltd. 218 1.08 % 33 33 33
GeunHo Precision Co., Ltd. 1,770 0.98 % 133 133 133
HwaIn Inemtek Co., Ltd. 327 0.60 % 43 43 43
TS Steel Co., Ltd. 202 0.13 % 20 20 20
SaeHan Food Co., Ltd. 23 0.40 % 5 5 5
SamYeong Engineer Co., Ltd. 501 0.55 % 10 10 10
GumYoung General Co., Ltd. 6,522 0.06 % 13 13 13
SaeUm Global Co., Ltd. 207 0.06 % 5 5 5
Work life balance Co., Ltd. 9 0.92 % 1 1 1
YuJin Hightech Co., Ltd. 152 0.58 % 15 15 15
GOC Co., Ltd. 4,415 0.16 % 44 44 44
Fraijour Queen Co., Ltd. 73 0.56 % 3 3 3
Wnt Co., Ltd. 57 0.19 % 6 6 6
Tae Gwang Engineer Co., Ltd. 406 2.60 % 41 41 41
GSB Co., Ltd. 370 1.03 % 37 37 37
MCI Co., Ltd. 760 0.12 % 23 23 23
Wonchang steel Co., Ltd. 66 0.16 % 7 7 7
GukWon Construction Co., Ltd. 9 0.00 %
Friend Co., Ltd. 2,745 0.46 % 55 55 55
AppleLind Networks Co., Ltd. 2,417 0.12 % 11 11 11
HSC Co., Ltd. 7,174 2.69 % 36 36 36
ChangShin Plant Co., Ltd. 108 1.40 % 22 22 22
PyeongKang Precision Co., Ltd. 3 0.01 %
ShinSung Co., Ltd. 66 0.58 % 13 13 13
DreamHightech Co., Ltd. 137 0.16 % 7 7 7
WooHo Construction Co., Ltd. 35 0.02 % 2 2 2
352,191 309,709 309,709
Debt securities (*1)
Aron Flying Ship Co., Ltd. ~~W~~ 491 535 535
Ino Platech Co., Ltd. 1,080 1,194 1,194
Daebon Tech Co., Ltd. 3,000 3,316 3,316
4,571 5,045 5,045
~~W~~ 683,192 674,850 674,850

54

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(*1) The Group used initial cost as their fair value because there was not enough information to determine fair<br>value, and the range of the estimated fair value is wide.
--- ---
(*2) The Group has estimated the fair value of Set Holding by using the discounted cash flow method and has<br>recognized the difference between its fair value and book value as gain or loss on valuation of financial assets at FVOCI in other comprehensive income or loss for the year ended December 31, 2024.
--- ---
(*3) The Group acquired shares in the entity through conversion of investments performed in corporate rehabilitation<br>procedures, and classified the investment in the entity as financial assets at fair value through other comprehensive income as the Group does not hold a significant influence over the entity until the corporate rehabilitation procedures are<br>completed.
--- ---
(*4) During the year ended December 31, 2024, BDI Co., Ltd. was delisted as the Court dismissed the application<br>for temporary injunction requiring the suspension of delisting decision and others.
--- ---
(*5) The entity is undergoing corporate rehabilitation procedures for the year ended December 31, 2024 and the<br>Group cannot hold significant influence over the entity until the corporate rehabilitation procedures are completed. Therefore, investments in the entity were reclassified as financial assets at fair value through other comprehensive income.<br>
--- ---

55

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Listed
Korea District Heating Corp. 2,264,068 19.55 % ~~W~~ 173,201 55,356 55,356
KG Mobility Co., Ltd. (formerly, Ssangyong Motor Co., Ltd.) 12,205 0.01 % 428 106 106
SM Korea Line Corp. 180 0.00 % 1
Namkwang Engineering & Construction Co., Ltd. 46 0.00 % 15
Bumyang Construction Co., Ltd. 35 0.00 % 2
ELCOMTEC Co., Ltd. 32,875 0.04 % 217 43 43
PAN Ocean Co., Ltd. 1,492 0.00 % 14 6 6
STX Heavy Industries Co., Ltd. 68,874 0.24 % 537 806 806
Codes Combine Co., Ltd. 291 0.00 % 1 1 1
PT Adaro Energy Tbk. 480,000,000 1.50 % 65,028 95,505 95,505
Denison Mines Corp. 58,284,000 6.54 % 84,134 131,790 131,790
Fission Uranium Corp. 100,000 0.01 % 41 105 105
SangSangin Industry Co., Ltd. 1,457 0.01 % 38 3 3
Vitzrosys Co., Ltd. 399 0.00 % 2
EMnI Co., Ltd. 628 0.00 % 25 1 1
Vissem electronics, Co., Ltd. 301 0.00 % 11 1 1
KC Industry Co., Ltd. 139 0.00 % 6
Aone Alform Co., Ltd. 2,672 0.04 % 19 4 4
Ihsung CNI Co., Ltd. 142,860 4.81 % 1,500 1,327 1,327
BDI Co., Ltd. (*3) 6,390,478 32.54 %
325,220 285,054 285,054
Unlisted (*1)
Hwan Young Steel Co., Ltd. 10,916 0.14 % ~~W~~ 1,092 97 97
SAMBO AUTO. Co., Ltd. 15,066 0.02 % 38 38 38
Mobo Co., Ltd. 504 0.00 % 14 14 14
Dae Kwang Semiconductor Co., Ltd. 589 0.07 % 6 6 6
Sanbon Department Store 828 0.01 % 124 3 3
Miju Steel Mfg. Co., Ltd. 1,097 0.23 % 50 50 50
Sungwon Co., Ltd. 117 0.07 % 29 29 29
IMHWA Corp. 329 0.11 % 5 5 5
DALIM Special Vehicle Co., Ltd. 58 0.08 % 10 10 10
Moonkyung Silica Co., Ltd. 42 0.56 %
Sungkwang Timber Co., Ltd. 3 0.08 % 5 5 5
KS Remicon Co., Ltd. 12 0.04 % 3 3 3
Joongang Platec Co., Ltd. 3,591 0.75 % 72 35 35
Pyungsan SI Co., Ltd. 434 0.01 % 4 4 4
Samgong Development Co., Ltd. 12 0.01 % 7 7 7
Joongang Development Co., Ltd. 540 0.12 % 8 8 8
Newasia Co., Ltd. (formerly, AJS Co., Ltd.) 12,906 0.23 % 32 32 32
MSE Co., Ltd. 429 0.13 % 9 9 9
Ilrim Nano Tec Co., Ltd. 1,520 0.07 % 15 15 15
Ilsuk Co., Ltd. 152 0.17 % 10 10 10
Zyle Daewoo Motor Sales Co., Ltd. 22 0.00 %
Daewoo Development Co., Ltd. 8 0.00 %
Seyang Inc. 537 0.05 % 27 30 30
Seungri Enterprise Co., Ltd. 93 0.05 % 3 3 3
Shin-E P&C Co., Ltd. 1,569 0.64 % 110 2 2
Ejung Ad Co., Ltd. 132 0.09 % 3 3 3
Solvus Co., Ltd. 1,056 0.04 % 3 3 3
Myung Co., Ltd. 89 0.05 % 2 2 2

56

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Biwang Industry Co., Ltd. 406 0.04 % ~~W~~ 2 2 2
Young Sung Co., Ltd. 89 0.40 % 26 26 26
Yuil Industrial Electronics Co., Ltd. 804 0.32 % 15 15 15
Woojin Industry Corporation 3 0.00 % 16 16 16
Kwang Sung Industry Co., Ltd. 325 0.35 % 7 7 7
Futech Mold Co., Ltd. 274 0.27 % 14 14 14
Woojoo Environment Ind. Co., Ltd. 101 0.11 % 13 13 13
Hyungji Esquire Co., Ltd. 61 0.02 % 22 22 22
Morado Co., Ltd. 209 0.04 % 2 2 2
Myung Sung Tex Co., Ltd. 20 0.00 % 2 2 2
Kwang Sung Co., Ltd. 610 0.53 % 31 31 31
Seen Business and Technology co., Ltd. 29,424 0.73 % 148 7 7
Woobang Construction Co., Ltd. 8 0.00 % 8 8 8
Shin Pyung Co., Ltd. 6 0.03 % 3 3 3
JMC Heavy Industries Co., Ltd. 2,724 0.10 % 27 2 2
Najin Steel Co., Ltd. 37 0.06 % 5 5 5
Sinkwang Industry Co., Ltd. 1,091 1.68 % 5 5 5
Elephant & Friends Co., Ltd. 563 0.61 % 3 3 3
Mireco Co., Ltd. 109 0.25 % 11 11 11
L&K Industry Co., Ltd. 1,615 0.60 % 24 24 24
JO Tech Co., Ltd. 1,263 0.62 % 25 25 25
Kendae Printing Co., Ltd. 422 0.60 % 21 21 21
Dauning Co., Ltd. 231 0.41 % 6 6 6
Korea Trecision Co., Ltd. 22 0.45 % 5 5 5
Hurim Biocell Co., Ltd. 1,021 0.00 % 5 5 5
Sunjin Power Tech Co., Ltd. 4,941 0.92 % 247 32 32
Beer Yeast Korea Inc. 1,388 0.43 % 7 7 7
B CON Co., Ltd. 96 1.16 % 6 6 6
Ace Integration Co., Ltd. 105 0.09 % 24 24 24
AceInti Agricultural Co., Ltd. 16 0.02 % 5 5 5
KyungDong Co., Ltd. 130 0.01 % 1 1 1
ChunWon Development Co., Ltd. 193 0.19 % 39 39 39
SungLim Industrial Co., Ltd. 29 0.03 % 1 1 1
Korea Minerals Co., Ltd. 191 0.05 % 134 1 1
HyoDong Development Co., Ltd. 128 0.16 % 25 1 1
JoHyun Co., Ltd. 350 1.56 % 18 18 18
KC Co., Ltd. 5,107 0.17 % 26 26 26
SeongJi Industrial Co., Ltd. 41 0.05 % 1 1 1
Seyang Precision Ind.Co., Ltd. 829 0.23 % 41 41 41
Dooriwon Food System Co., Ltd. 13 0.27 % 1 1 1
Sung Kwang Co., Ltd. 23 0.37 % 6 6 6
Shinheung petrol. Co., Ltd. 699 0.14 % 35 35 35
Samsung Tech Co., Ltd. 486 1.28 % 97 36 36
Younil Metal Co., Ltd. 41 0.21 % 21 21 21
Sevenvalley JC (formerly, CJ Paradise Co., Ltd.) 24 0.02 % 12 12 12
Han Young Technology Company Co., Ltd. 35 0.00 %
Ptotronics Co., Ltd. 843 0.42 % 84 6 6
NFT Co., Ltd. 136 0.40 % 8 8 8
Hyundaitech Co., Ltd. 1,363 0.87 % 27 27 27
Dasan Material Co., Ltd. 29 0.04 % 22 22 22
Fish World Co., Ltd. 47 0.21 % 2 2 2

57

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
SG Shinsung Engineering and Construction Co., Ltd. 10 0.00 % ~~W~~ 6
Samdo Industry Electric Co.,Ltd. 48 0.02 % 1 1 1
Taejung Industries Co.,Ltd. 9,268 0.30 % 5 5 5
Shinsei Trading Co., Ltd. 64 0.72 % 6 6 6
Dynamic Co., Ltd. 111 0.19 % 3 3 3
Green Alchemy Co.,Ltd. 38,202 1.48 % 191 17 17
KM Leatech Co., Ltd. 1,648 0.98 % 8 8 8
Semist Co.,Ltd. 555 0.80 % 3 3 3
Sewon Bus Co.,Ltd. 12 0.00 %
Enertec Co., Ltd. 7,937 0.19 % 44 44 44
Sangji Co., Ltd. 20 0.26 % 4 4 4
Bellie Doughnuts Co., Ltd. 169 0.19 % 10 10 10
Set Holding (*2) 1,100,220 2.50 % 229,255 165,923 165,923
Choheung packing Co., Ltd. 61 0.13 % 12 12 12
Jaewoo Co., Ltd. 359 0.24 % 11 11 11
Wooyang HC Co., Ltd 1,375 0.01 % 159 13 13
TheYeonriji Co., Ltd. 116 0.10 % 6 6 6
Flusys Co., Ltd. 9 0.08 % 2 2 2
DongSeo Electronics Co., Ltd. 347 0.07 % 17 17 17
Daewoo Display Co., Ltd. 177 0.03 % 5 5 5
NTS Co., Ltd. 143 0.22 % 36 36 36
AID CO., Ltd. 1,212 0.57 % 36 36 36
Changwon Eco-friendly farming Corp. 3 0.01 %
Kumo Hitech Co., Ltd. 6,697 0.53 % 100 32 32
Kyung Pyo Industry Co., Ltd. 186 0.76 % 19 19 19
Doosung Heavy Industries Co., Ltd. 53 0.06 % 5 5 5
Samjoo Hightech Co., Ltd. 522 0.08 % 3 3 3
Samkwang Chemical Co., Ltd. 204 1.27 % 51 51 51
Shinseung Chemical Industy Co., Ltd. 5 0.01 % 60
KJ Alloy Co., Ltd. 368 0.20 % 7 7 7
SM Hi-tech Co., Ltd. 22 0.39 % 22 22 22
Puruen Environment Co., Ltd. 967 1.34 % 19 19 19
Miretech Co., Ltd. 9,111 0.27 % 18 18 18
Sejin Hightech Co., Ltd. 17,980 0.16 % 18 18 18
Eun Sung Enterprise Co., Ltd. 1,131 0.72 % 17 17 17
Shinyoung Textiles Co., Ltd. 523 1.01 % 52 23 23
Ilwoo Steel Co., Ltd. 41 0.28 % 17 17 17
Dong-un Tech Co., Ltd. 1,159 6.28 % 81 34 34
Wongwang Door Corp. 575 1.00 % 29 29 29
Mansu Co.,Ltd. 344 0.25 % 15 15 15
Eanskorea Co., Ltd. 39 0.05 % 2 2 2
Youngdongseafood Co., Ltd. 165 0.33 % 8 8 8
Hyunwoo Winstar Co., Ltd. 1 0.00 %
Sungchang Tech Co., Ltd. 159 0.31 % 19 19 19
Yuchang Industry Co., Ltd. 90 0.11 % 5 5 5
Jeongpum Co., Ltd. 322 0.35 % 16 16 16
Korea Steel Power Co., Ltd. 2,761 1.88 % 55 2 2
Amanex Co., Ltd. 10 0.02 % 9 9 9
Dae-A Leisure Co., Ltd. 23 0.00 % 4 4 4
Caffe Bene Co.,Ltd. 1,908 0.03 % 9 9 9
Jinhung Packaging Co., Ltd. 4,329 3.02 % 22 22 22
Donglim Eng Co., Ltd. 26 0.11 % 3 3 3
SIP Co., Ltd. 274 0.55 % 7 7 7
Daeji Product Co., Ltd. 15 0.05 % 1

58

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
SSET Co., Ltd. 181 0.30 % ~~W~~ 18 18 18
Sewon PM Tech Co., Ltd. 963 1.11 % 48 48 48
Dawon Yuhwa Co., Ltd. 506 1.94 % 25 25 25
Ewon materials Co., Ltd. (formerly, Shinwoo Toptech Co., Ltd.) 834 0.51 % 83 6 6
KMLC Co., Ltd. 281 0.14 % 22 22 22
Seinfood Co., Ltd. 13 0.17 % 7 7 7
TaeSung Eco-Tech. Co., Ltd. 1,368 4.55 % 34 34 34
Kukex Inc. 639 0.05 % 3 3 3
Youngshin Plus Co., Ltd. 104 0.12 % 5 5 5
Chang won Engineering Co., Ltd. 22 0.00 % 4 4 4
Samsung Silup Co., Ltd. 47 0.19 % 5 5 5
Samwon Bio Tech Co., Ltd. 390 0.25 % 6 6 6
IZU KOREA Co., Ltd. 48 0.00 % 2 2 2
Dongdo CNP Co., Ltd. 234 0.36 % 6 6 6
S.I.T. Co.,Ltd 2,213 0.44 % 22 22 22
Taejin Hiech Co., Ltd. 78 0.26 % 3 3 3
Headone Co.,Ltd. 69 0.12 % 7 7 7
E-Won Solutech Co., Ltd. 158 0.16 % 40 40 40
KPL Circuit Co., Ltd. 283 0.08 % 14 14 14
Road Solar Co., Ltd. 12 0.00 %
Han Mi Flexible Co., Ltd. 143 0.20 % 43 43 43
Millennium PNT Co., Ltd. 227 0.37 % 6 6 6
Dae Myung Co., Ltd. 114 0.08 % 3 3 3
Young San Heavy Industries Co., Ltd. 74 0.11 % 7 7 7
Samchungwon Co., Ltd. 15 0.24 % 2 2 2
Wooyang Frozen Foods Co., Ltd. 66 0.82 % 27 27 27
Nanomic Co., Ltd. 94 0.63 % 38 38 38
Samsung Nonferrous Metal Co., Ltd. 89 0.26 % 9 9 9
Daewha Fuel Pump Ind., Ltd. 83 0.05 % 10 10 10
WorldCnM Inc. 131 1.09 % 10 10 10
Superone Co., Ltd. 1,585 1.45 % 8 8 8
Buyoung Panji Co., Ltd. 478 0.44 % 12 12 12
International Paint Korea Co., Ltd. 111 0.48 % 11 11 11
EI Lighting Co., Ltd. 358 0.36 % 18 18 18
Yooseung Co., Ltd. 10 0.08 % 1 1 1
Sungkwang Co., Ltd. 48 0.35 % 2 2 2
Ajin KSB Co., Ltd. 204 0.31 % 18 18 18
Sewon Ceramic Co., Ltd. 530 1.01 % 5 5 5
Choyang Tech Co., Ltd. 465 1.01 % 23 23 23
TK Co., Ltd. 307 0.70 % 15 15 15
Arari Co., Ltd. 14 0.05 % 1 1 1
C&S Corporation Co., Ltd. 1,304 0.01 % 13 13 13
Global The One of Korea Co., Ltd. 62 0.06 % 3 3 3
Steellife Co., Ltd. 85 0.06 % 4 4 4
Geumhan Co., Ltd. 498 0.24 % 7 7 7
Mokgan Co., Ltd. 5 0.02 % 1 1 1
Wenex Co., Ltd. 373 0.53 % 19 19 19
Sulim Co., Ltd. 30 0.20 % 6 6 6
Shinkwang Engineering 24 0.36 % 2 2 2
Ek Cookware Co., Ltd. 60 0.04 % 1 1 1
KTTW Co., Ltd. 28 0.05 % 2 2 2
Avajar Co., Ltd. 1,061 0.01 % 1 1 1
Woosung I.B. Co., Ltd. 7,071 0.07 % 14 14 14

59

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
CAP Korea Co., Ltd. 16 0.30 % ~~W~~ 3 3 3
MSM Co., Ltd. 25 0.08 %
Ddpopstyle Co., Ltd. 22 0.14 % 1 1 1
Finemetal Co., Ltd. 49 0.08 % 1 1 1
Sungkyeong Co., Ltd. 52 0.24 % 2 2 2
Newko Co., Ltd. 331 0.06 % 10 10 10
Dongsung Mulsan Co., Ltd. 137 0.34 % 14 14 14
Pizzakorea Co., Ltd. 42 0.18 % 9 9 9
Geumdani Co., Ltd. 2,377 1.82 % 36 36 36
Mezzanine I-pack Co., Ltd. 38 0.02 % 1 1 1
Ltop Co., Ltd. 36 0.06 % 7 7 7
Simile Aluminium Co., Ltd. 428 0.31 % 9 9 9
GT Tooling Co., Ltd. 604 0.17 % 6 6 6
Team Korea Co., Ltd. 4,782 0.37 % 24 24 24
Donghwa TCA Co., Ltd. 1,012 0.30 % 25 25 25
Hankook Piaget Co., Ltd. 4 0.01 % 1 1 1
Coco Food Co., Ltd. 648 1.24 % 33 33 33
Woori Industry Co., Ltd. 102 1.05 % 21 21 21
Ssangyong Youngweol Plant Service&Engineering Co., Ltd. 83 0.07 % 4 1 1
SH Co., Ltd. 39 0.20 % 8 8 8
Daeyoung Co., Ltd. 75 0.01 % 8 8 8
Getron Co., Ltd. 7,259 0.20 % 37 4 4
Jungmun Co., Ltd. 19 0.26 % 2 2 2
JM Tech Co., Ltd. 403 0.67 % 82 10 10
SGC Energy Co., Ltd. 580,000 5.00 % 2,900 6,249 6,249
Le Soleil KHNP LLC 137,600 19.00 % 1,376 1,376 1,376
Ihsung CNI Co., Ltd. 127,660 4.30 % 1,500 1,937 1,937
H Robotics Co., Ltd. 903,601 8.05 % 4,000 5,639 5,639
Good Tcells Co., Ltd. 11,364 0.33 % 500 399 399
IPS Bio Co., Ltd. 1,975 3.13 % 1,000 897 897
Nine B Co., Ltd. 5,000 4.96 % 1,000 1,000 1,000
Choigang-gujo Co., Ltd. 61 0.45 % 6 1 1
Hosungsteel Co., Ltd. 323 0.26 % 14 3 3
Uktae IND. Co., Ltd. 140 0.12 % 7 1 1
JFC Co., Ltd. 16 0.01 % 2 2 2
Hyundai Tech Co., Ltd. 28 0.69 % 10 10 10
Daeil Co., Ltd. 301 0.42 % 15 2 2
Daehyeon Recycle Co., Ltd. 59 0.61 % 12 12 12
Metal Link Inc. Co., Ltd. 709 0.17 % 35 4 4
Pipetec Korea Co., Ltd. 50 0.07 % 10 1 1
SungJin Tech Co., Ltd. 803 1.20 % 24 8 8
Yujin E&C Co., Ltd. 29 0.18 % 6
Daishin Logistics Co., Ltd. 13 0.09 % 1 1 1
JinSung Engineering Co., Ltd. 18 0.30 % 18 18 18
Yongho Industry Co., Ltd. 157 0.22 % 32 1 1
Wow tech Co., Ltd. 369 0.75 % 11 11 11
World Power Tech Co., Ltd. 16 0.28 % 24 24 24
PBM Auto Co., Ltd. 1,001 1.06 % 10 10 10
K2 Motors Co., Ltd. 54 0.28 % 1 1 1
CL Tech Co., Ltd. 801 2.25 % 40 40 40
Mirae Industry Co., Ltd. 39 0.04 % 6 6 6
Gentak Korea Co., Ltd. 301 0.31 % 8 8 8
Sungjin Chemical Co., Ltd. 118 0.36 % 4 4 4

60

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
LMAT Co., Ltd. 198 0.04 % ~~W~~ 20 20 20
Poong Lim Industrial Co., Ltd. 25 0.00 % 38 38 38
Dae Sung GeoTech Co., Ltd. 631 1.28 % 32 32 32
Saeheemang Co., Ltd. 756 0.60 % 15 15 15
Vornech Co., Ltd. 431 0.37 % 11 2 2
Woojin Formtech Co., Ltd. 76 0.08 % 8 1 1
Korea Engineer Manufacturing Co., Ltd. 114 0.26 % 6 1 1
Sinwa J&K Co., Ltd. 476 0.28 % 5 5 5
Owon E&G Co., Ltd. 132 0.20 % 4 4 4
Guseong Co., Ltd. 141 0.20 % 3 3 3
Irefarm Co., Ltd. 45 0.30 % 3 3 3
Haenarae Agricultural Corp. 15 0.03 % 2 2 2
DECO&E Co., Ltd. 1,261 0.00 % 2 2 2
Design Beyond Co., Ltd. 17 0.19 % 2 2 2
LBK Co., Ltd. 8 0.05 % 1 1 1
Duckwon industrial Co., Ltd. 32 0.43 % 13 13 13
ASPT Co., Ltd. 64 0.82 % 19 19 19
SIMA Co., Ltd. 29 0.05 % 3 3 3
Jingkang Resources Co., Ltd. 90 1.57 % 13 13 13
Eslin Co., Ltd. 39 0.14 % 8 8 8
CIC Tech Co., Ltd. 96 0.54 % 10 10 10
Orano Expansion 5,742,405 4.72 %
Fourever Co., Ltd. 44 0.10 % 4 4 4
Myungil Metal Co., Ltd. 80 0.10 % 4 4 4
Daeshin ECM Co., Ltd. 182 0.30 % 9 9 9
Greencarbon Co., Ltd. 79 0.06 % 1 1 1
Sunkoo Co., Ltd. 4 0.10 % 2 2 2
Jians Construction Co., Ltd. 45 0.01 % 2 4 4
DH trading Co., Ltd. 891 0.04 % 178
Sangsin Co., Ltd. 29 0.09 % 15 15 15
Steel focus Co., Ltd. 154 0.20 % 4 4 4
Kamada Korea Co., Ltd. 437 0.33 % 22 22 22
Fosys Co., Ltd. 19 0.08 % 4 4 4
GB precision Co., Ltd. 137 0.57 % 1 1 1
Ewon Art Co., Ltd. 185 0.61 % 9 9 9
DI Tech Co., Ltd. 3 0.00 %
Hans AD Co., Ltd. 33 0.35 % 2 2 2
Chaegim Environment Development Co., Ltd. 158 0.01 % 3 3 3
Daesung Stain Co., Ltd. 32 0.32 % 2 2 2
YSM Co., Ltd. 281 2.07 % 14 14 14
U&I Co., Ltd. 50 0.22 % 5 5 5
World One Co., Ltd. 401 0.58 % 10 10 10
Yewon Co., Ltd. 24 0.02 % 1
TSNT Co., Ltd. 119 0.00 % 24 24 24
Shinsung Tech Co., Ltd. 314 0.01 % 16 16 16
Loft Garden Co., Ltd. 1 0.04 %
Handon Co., Ltd. 74 0.25 % 11 11 11
GH Tech Co., Ltd. 82 0.22 % 3 3 3
Daeo Co., Ltd. 13 0.23 % 4 4 4
Bokwang Co., Ltd. 76 0.00 % 15 15 15
Samkum Industry Co., Ltd. 201 0.48 % 40 40 40
Dyntex Korea Co., Ltd. 75 0.28 % 15 15 15
Mirae Engineering Co., Ltd. 66 0.15 % 1 1 1

61

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Ilshin Tech Co., Ltd. 36 0.00 % ~~W~~ 7 7 7
Sukwon Co., Ltd. 2,885 0.59 % 29 29 29
Hae-sung Metal Co., Ltd. 159 0.17 % 3 3 3
White&Clean Foods Co., Ltd. 330 0.00 % 3 3 3
Michang Cable Co., Ltd. 1,096 0.13 % 16 16 16
G.M Foods Co., Ltd. 57 0.16 % 9 9 9
Wecan Global Inc. Co., Ltd. 165 0.08 % 8 8 8
Daeju Steel Co., Ltd. 11 0.20 % 1 1 1
Hyundai Glass Co., Ltd. 860 0.83 % 43 43 43
MEC Co., Ltd. 16,468 1.17 % 41 41 41
Daeyeoneco Co., Ltd. 151 0.00 % 15 15 15
Hyesung Cable&Communication Inc. 762 0.39 % 38 38 38
Sangjin Co., Ltd. 428 0.35 % 21 21 21
Topis Co., Ltd. 246 0.71 % 14 14 14
Iksan-guwon Co., Ltd. 563 0.00 % 11 11 11
Korea Remicon Co., Ltd. 36 0.03 % 5 5 5
New Tech Co., Ltd. 23 0.15 % 2 2 2
Segeon Co., Ltd. 124 0.00 % 4 4 4
MS Tech Co., Ltd. 9 0.15 % 1 1 1
J.I Steel Co., Ltd. 21 0.00 % 2 2 2
HNT Co., Ltd. 172 0.00 % 9 9 9
Taejin Co., Ltd. 27 0.08 % 3 3 3
Macroad Co., Ltd. 953 0.17 % 10 10 10
Woongjin Energy Co., Ltd. 94 0.00 % 9 9 9
Common Computer Co., Ltd. 3,856 1.64 % 1,000 1,154 1,154
Fine Powerex Co., Ltd. 72,633 4.58 % 1,500 1,772 1,772
Eunsung Industrial Co., Ltd. 3 0.03 % 1 1 1
KPE Co., Ltd. 51 0.19 % 13 13 13
Dongbangfarms Co., Ltd. 904 0.55 % 41 5 5
Sungdo Pack Co., Ltd. 15 0.06 % 1 1 1
Coffeenie Co., Ltd. 2 0.00 % 1 1 1
Medi Pharma Plan Co., Ltd. 1,075 0.26 % 108 8 8
Woori Ascon Co., Ltd. 25 0.34 % 10 10 10
Dong Shin Hydraulies Co., Ltd. 9,460 0.14 % 47 47 47
Cheonwoo E.P.S Co., Ltd. 371 1.10 % 19 19 19
Koa Tech Co., Ltd. 1,244 0.77 % 12 12 12
SKE Cable Co., Ltd. 120 0.08 % 6 6 6
Hi Korea Co., Ltd. 1,845 1.94 % 185 185 185
Daeheung Engineering Co., Ltd. 65 0.01 % 1 1 1
Etapol Co., Ltd. 1,361 0.54 % 41 41 41
Yoongwon Korea Co., Ltd. (formerly, Yoongwon International Co., Ltd.) 157 1.47 % 31 31 31
Avoh Ceramic&Bath Co., Ltd. 173 0.14 % 3 3 3
Dongyang R.P.F. Industrial Co., Ltd. 59 0.03 % 2 2 2
Yuil Engineering Co., Ltd. 14 0.03 % 1 1 1
Taesan Co., Ltd. 146 0.69 % 35 35 35
Seokjin E&T Co., Ltd. 81 0.06 % 8 8 8
Agencore Co., Ltd. 175,779 8.32 % 2,200 2,200 2,200
SamHong Machinery. EMC Co., Ltd. 476,192 8.98 % 5,000 5,000 5,000
Thermo Tec Co., Ltd. 446 0.03 % 4 4 4
DaeYang Hydro Co., Ltd. 6 0.02 % 1 1 1
SangMoo Steel Co., Ltd. 24 0.04 % 2 2 2
Jungin Distribution Co., Ltd. 17 0.00 % 3 3 3
TheSun Co., Ltd. 77 0.06 % 1 1 1

62

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Daewoong and Technology Co., Ltd. 423 1.14 % ~~W~~ 42 42 42
ChoungHwa Precise Co., Ltd. 428 0.08 % 43 4 4
Snopa Co., Ltd. 458 0.01 % 5 5 5
Aloha Factory Co., Ltd. 2,970 3.70 % 1,000 739 739
Dailyshot Co., Ltd. 1,695 1.85 % 1,001 1,001 1,001
Samhyup Co., Ltd. 376 0.91 % 38 38 38
Gogang Aluminum Co., Ltd. 828 1.52 % 41 41 41
Taekwang Paper Board Co., Ltd. 133 0.49 % 23 23 23
NY Tech Co., Ltd. 33 0.15 % 2 2 2
Dongbang Metal Co., Ltd. 1,985 0.32 % 20 20 20
Samwang Co., Ltd. 170 0.25 % 17 17 17
Yurim CNF Co., Ltd. 15 0.23 % 2 2 2
Guseul Co., Ltd. 89 0.23 % 9 9 9
Gaone International Co., Ltd. 54 0.29 % 14 14 14
Dongyang Pratech Co., Ltd. 265 1.21 % 29 29 29
Samjin Placo Co., Ltd. 661 0.52 % 33 33 33
MS Steel Industrial Co., Ltd. 167 0.40 % 8 8 8
STS Global Co., Ltd. 9 0.04 % 1 1 1
Y Tech Co., Ltd. 855 0.65 % 34 34 34
J&J Tech Co. 14 0.22 % 1 1 1
Shield Board Co., Ltd. 165 0.15 % 3 3 3
SFC International Co., Ltd. 11 0.01 % 1 1 1
Hana ITM Inc. 8,443 0.70 % 84 84 84
Jeuvis Co., Ltd. 191 0.30 % 2 2 2
JBM Co., Ltd. 662 0.34 % 20 20 20
Jungwoo Metal Solution Co., Ltd. 27 0.08 % 2 2 2
MS Precision Co., Ltd. 220 0.16 % 22 22 22
YM Tech Co., Ltd. 2 0.01 % 1 1 1
C&C ENG Co., Ltd. 439 1.59 % 22 22 22
Daejoo E&G Co., Ltd. 133 0.00 % 27 27 27
Taeyoung Precision Co., Ltd. 31 0.22 % 1 1 1
Shin Heung Precision Co., Ltd. 93 4.63 % 4 4 4
TaeGwang P&C Co., Ltd. 530 0.90 % 13 13 13
KyeongGwang Tech Co., Ltd. 244 1.04 % 7 7 7
Altron Jeonju Co., Ltd. 34,846 1.34 % 697 5 5
SKD Korea Co., Ltd. 40 0.28 % 20 20 20
Moohan Enterprise Co., Ltd. 63 0.12 % 3 3 3
Value Invest Korea Co., Ltd. 8 0.00 % 2 2 2
Beomju Co., Ltd. 1,037 0.60 % 42 42 42
C&A Industries Co., Ltd. 42,062 0.26 % 21 21 21
Vehicle System Co., Ltd. 225 0.19 % 23 23 23
CH Solution Co., Ltd. 1,456 0.16 % 4 4 4
HNT Co., Ltd. 8,567 0.09 % 9 9 9
Sunquen Co., Ltd. 4 0.01 %
Hapdong Co., Ltd. 7,096 1.08 % 106 106 106
Shabath Co., Ltd. 48 0.04 % 6 6 6
Woori Elec Co., Ltd. 102 0.17 % 5 5 5
Dong-Yang Special Casting Co., Ltd. 1,027 0.41 % 21 21 21
DYC Co., Ltd. 638 1.73 % 96 96 96
Haegang Industry Co., Ltd. 1,687 1.13 % 25 25 25
Daone Co., Ltd. 860 0.23 % 9 9 9
Yeowoon Co., Ltd. 3 0.00 %
Evertrue Co., Ltd. 15 0.00 %
Black Materials Co., Ltd. 37,038 8.31 % 500 500 500
K Shipbuilding Co., Ltd. 8,622 0.25 % 1,078 1,078 1,078
Seohan Food Co., Ltd. 83 0.19 % 2 2 2
Andong Trading Corporation Co., Ltd. 42 0.00 % 2 2 2
RMK Co., Ltd. 63 0.90 % 22 22 22
Shinjin International Corporation Co., Ltd. 4 0.01 % 1 1 1

63

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

10. Financial Assets at Fair Value through Other Comprehensive Income, Continued
(2) Financial assets at fair value through other comprehensive income as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Shares Ownership Acquisition cost Book value Fair value
Asan Wood 6,391 1.03 % ~~W~~ 64 64 64
Seil Textile Co., Ltd. 16 0.15 % 3 3 3
JSL Co., Ltd. 51 0.49 % 3 3 3
3i Powergen Inc. 15.00 % 1,482
PT. Kedap Sayaaq 671 10.00 % 18,540
Mediquitous Co., Ltd. 5,080 0.64 % 1,250 1,250 1,250
Monit Co., Ltd. 166,667 14.29 % 1,000 1,000 1,000
Enersys Co., Ltd. 9,763 19.62 % 2,050 2,050 2,050
Kalman Co., Ltd. 23,172 10.02 % 1,000 1,000 1,000
HiMet Corporation Co., Ltd. 1,754,386 13.93 % 5,000 5,000 5,000
Wonil Image Maker Inc. 16 0.04 %
Ohbaksa.com Co., Ltd. 52 0.23 % 3 3 3
Hanyang Electric Co., Ltd. 918 3.27 % 92 92 92
Geumchang Synthetic Fiber Co., Ltd. 119 1.02 % 12 12 12
Sung Min Fishery Co., Ltd. 371 0.09 % 4 4 4
Dreamfact Co., Ltd. 77 0.10 % 3 3 3
Donyworld Co., Ltd. 125 0.68 % 10 10 10
Dongsuh Companies Inc. 18 0.23 % 2 2 2
Dondodam Co., Ltd. 262 0.34 % 13 13 13
Vision Food Co., Ltd. 1,732 1.00 % 86 86 86
Aone Metal Co., Ltd. 156 0.89 % 16 16 16
Ecoplus Co., Ltd. 2,786 0.91 % 3 3 3
Libechen Co., Ltd. 151 0.13 % 8 8 8
Hongin Co., Ltd. 18 0.03 % 5 5 5
Bolim Co., Ltd. 37 0.10 % 5 5 5
Neo Life Co., Ltd. 19 0.04 %
Daehong Industry Co., Ltd. 1,152 1.01 % 85 85 85
T-Eng Co., Ltd. 123 1.05 % 25 25 25
Badanuri 8 0.10 % 2 2 2
Daeyoung Co., Ltd. 178 0.56 % 63 63 63
Ki Soo Precision Co., Ltd. 325 0.44 % 98 98 98
DNGV 5,516 0.14 % 11 11 11
BJ Korea 446 0.81 % 40 40 40
R&S Co., Ltd. 291 0.61 % 4 4 4
Daekyoung Co., Ltd. 85 0.66 % 17 17 17
Gunsan Bio Energy Co., Ltd. (*4) 200,000 18.87 % 1,000
295,627 212,762 212,762
Debt securities (*1)
Aron Flying Ship Co., Ltd. ~~W~~ 491 547 547
Ino Platech Co., Ltd. 1,080 1,080 1,080
Daebon Tech Co., Ltd. 3,000 3,000 3,000
4,571 4,627 4,627
~~W~~ 625,418 502,443 502,443
(*1) The Group used initial cost as their fair value because there was not enough information to determine fair<br>value, and the range of the estimated fair value is wide.
--- ---
(*2) The Group has estimated the fair value of Set Holding by using the discounted cash flow method and has<br>recognized the difference between its fair value and book value as gain or loss on valuation of financial assets at FVOCI in other comprehensive income or loss during the year ended December 31, 2023.
--- ---
(*3) The shares were acquired through an equity-to-equity conversion during the year ended December 31, 2023,<br>in accordance with the corporate rehabilitation procedures of BDI Co., Ltd. Since the Group does not have significant influence until the end of the corporate rehabilitation procedures, the Group classified the investment shares as financial assets<br>at fair value through other comprehensive income.
--- ---
(*4) Bankruptcy was declared during the year ended December 31, 2023. The Group cannot hold significant<br>influence due to the appointment of a bankruptcy trustee, so the entity was reclassified as financial assets at fair value through other comprehensive income.
--- ---

64

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

11. Financial Assets at Amortized Cost

Financial assets at amortized cost as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024
Financial assetsat amortized cost Book<br>value
Government bonds ~~W~~ 1,160 1,160
Others 29,073 29,073
~~W~~ 30,233 30,233
Current ~~W~~ 20,418 20,418
Non-current 9,815 9,815
In millions of won As of December 31, 2023
Financial assetsat amortized cost Book<br>value
Government bonds ~~W~~ 1,528 1,528
Others 37,315 37,315
~~W~~ 38,843 38,843
Current ~~W~~ 28,905 28,905
Non-current 9,938 9,938

65

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives
(1) Derivatives as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Derivative assets
Currency forward ~~W~~ 12,153 18,019
Currency swap 733,374 1,630,570 274,782 527,701
Interest rate swap 9,571 176,138 12,124 129,570
Others (*2,3) 5,456 123,902 2,807 35,391
~~W~~ 760,554 1,930,610 307,732 692,662
Derivative liabilities
Currency forward ~~W~~ 132 4,755
Currency swap 1,640 36,328 6,867 287,824
Interest rate swap 127 76,356 48,238
Others (*1,2) 22,015 148,227 6,757 97,793
~~W~~ 23,914 260,911 18,379 433,855
(*1) In relation to the agreement to purchase hybrid bonds issued by Samcheok Eco Materials Co., Ltd., an associate<br>of the Group, the performance obligation as of December 31, 2024 which amounts to ~~W~~26,422 million (~~W~~18,752 million as of December 31, 2023) to the underwriter of the bonds was recorded as other derivative<br>liabilities.
--- ---
(*2) The Group recorded the fair value of derivatives in accordance with the shareholders’ agreement of its<br>associate, Hyundai Green Power Co., Ltd., as other derivatives. Also, the fair value assessment of derivatives under the power purchase agreement of the subsidiary, Elara Energy Project, LLC, has been recognized as other derivatives.<br>
--- ---
(*3) The Group recorded the fair value of derivatives regarding the Power Purchase Agreement (“PPA”) of<br>its subsidiary Columboola Solar Farm Hold Co Pty., Ltd. as other derivatives.
--- ---

66

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(2) Currency forward contracts which are not designated as hedging instruments as of December 31, 2024 areas follows:
--- ---
In millions of won and thousands of foreign currencies except contract exchange rate information
--- --- --- --- --- --- --- --- --- ---
Counterparty Contract date Maturity<br>date Contract amounts
Pay Receive
Woori Bank 2024.12.30 2025.01.03 ~~W~~ 8,836 6,000 1,472.60
Woori Bank 2024.12.30 2025.01.06 7,363 5,000 1,472.50
Morgan Stanley 2024.12.30 2025.01.10 17,645 12,000 1,470.45
Kookmin Bank 2024.12.30 2025.01.14 17,640 12,000 1,470.00
Busan Bank 2024.12.30 2025.01.16 17,622 12,000 1,468.50
Korea Development Bank 2024.12.30 2025.01.17 17,627 12,000 1,468.95
Shinhan Bank 2024.12.30 2025.01.21 17,619 12,000 1,468.25
SMBC 2024.11.06 2025.01.13 22,201 16,000 1,387.54
SMBC 2024.11.07 2025.01.13 12,559 9,000 1,395.42
SMBC 2024.11.07 2025.01.31 12,551 9,000 1,394.59
SMBC 2024.11.11 2025.01.07 12,529 9,000 1,392.15
SMBC 2024.11.29 2025.02.07 13,917 10,000 1,391.72
SMBC 2024.12.04 2025.01.31 12,692 9,000 1,410.19
MUFG 2024.12.10 2025.02.13 11,395 8,000 1,424.38
Mizuho Bank 2024.12.13 2025.01.07 12,886 9,000 1,431.75
Korea Development Bank 2024.12.16 2025.01.07 27,247 19,000 1,434.04
Hana Bank 2024.12.19 2025.01.23 13,032 9,000 1,448.00
SMBC 2024.12.24 2025.02.07 36,283 25,000 1,451.33
Shinhan Bank 2024.12.26 2025.01.07 10,238 7,000 1,462.63
MUFG 2024.12.30 2025.01.23 11,755 8,000 1,469.36
MUFG 2024.11.29 2025.01.02 1,951 1,400 1,393.35
MUFG 2024.11.29 2025.01.03 3,622 2,600 1,393.15
Kookmin Bank 2024.12.02 2025.01.06 7,001 5,000 1,400.25
Nonghyup Bank 2024.12.03 2025.01.06 7,010 5,000 1,401.90
MUFG 2024.12.03 2025.01.06 7,002 5,000 1,400.35
JP Morgan 2024.12.18 2025.01.21 7,171 5,000 1,434.15
MUFG 2024.12.20 2025.01.24 7,244 5,000 1,448.75
Kookmin Bank 2024.12.20 2025.01.24 7,243 5,000 1,448.60
MUFG 2024.12.23 2025.01.27 7,239 5,000 1,447.80
Mizuho Bank 2024.12.23 2025.01.27 7,239 5,000 1,447.80
JP Morgan 2024.12.24 2025.01.27 7,261 5,000 1,452.15
Nonghyup Bank 2024.12.24 2025.01.27 7,261 5,000 1,452.20
Woori Bank 2024.12.26 2025.01.31 7,309 5,000 1,461.70
Hana Bank 2024.12.26 2025.01.31 7,308 5,000 1,461.55
Nonghyup Bank 2024.12.27 2025.01.31 6,881 4,670 1,473.35
Korea Citi Bank 2024.12.16 2025.01.13 2,865 2,000 1,432.65
Korea Citi Bank 2024.12.19 2025.01.13 11,607 8,000 1,450.88
Korea Citi Bank 2024.12.26 2025.01.27 5,911 4,000 1,477.76
Korea Citi Bank 2024.12.26 2025.01.27 2,956 2,000 1,477.76
Korea Citi Bank 2024.12.26 2025.01.27 2,927 2,000 1,463.66
HSBC 2024.12.19 2025.01.23 4,350 3,000 1,450.05
HSBC 2024.12.19 2025.01.23 4,348 3,000 1,449.35
JP Morgan 2024.12.24 2025.01.24 30,058 20,700 1,452.07
SMBC 2024.12.16 2025.01.13 5,733 4,000 1,433.20
SMBC 2024.12.26 2025.01.27 8,791 6,000 1,465.15
SMBC 2024.12.26 2025.01.27 2,955 2,000 1,477.65
Nonghyup Bank 2024.12.09 2025.01.10 15 10 1,433.60
Nonghyup Bank 2024.12.16 2025.01.13 2,867 2,000 1,433.65
Busan Bank 2024.12.18 2025.01.13 4,515 3,148 1,434.27
Hana Bank 2024.12.19 2025.01.13 8,704 6,000 1,450.70
Woori Bank 2024.11.28 2025.02.03 4,619 3,317 1,392.70
Standard Chartered 2024.11.28 2025.02.03 6,964 5,000 1,392.80
Busan Bank 2024.11.28 2025.02.03 6,965 5,000 1,392.90
JP Morgan 2024.11.28 2025.02.03 6,965 5,000 1,392.90
HSBC 2024.12.20 2025.02.26 10,112 7,000 1,444.50
Bank of America 2024.12.20 2025.02.26 8,667 6,000 1,444.55
Shinhan Bank 2024.12.27 2025.03.05 8,798 6,000 1,466.32
Hana Bank 2024.12.27 2025.03.05 10,264 7,000 1,466.25
Woori Bank 2024.12.30 2025.03.05 7,356 5,000 1,471.10

All values are in US Dollars.

67

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(2) Currency forward contracts which are not designated as hedging instruments as of December 31, 2024 areas follows, continued:
--- ---
In millions of won and thousands of foreign currencies except contract exchange rate information
--- --- --- --- --- --- --- --- --- ---
Counterparty Contract date Maturity<br>date Contract amounts
Pay Receive
Hana Bank 2024.12.30 2025.03.05 ~~W~~ 8,797 6,000 1,466.18
Shinhan Bank 2024.12.30 2025.03.05 7,325 5,000 1,464.92
Busan Bank 2024.12.30 2025.03.05 4,395 3,000 1,464.85

All values are in US Dollars.

68

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(3) Currency swap contracts which are not designated as hedging instruments as of December 31, 2024 are asfollows:
--- ---
In millions of won and thousands of foreign currencies except contract exchange rate information
--- --- --- --- --- --- --- --- --- --- --- --- ---
Counterparty Contract year Contract amount Contract interest rate Contractexchange rate(in won)
Pay Receive Receive
Standard Chartered 2014~2029 ~~W~~ 102,470 100,000 3.14% 3.57% ~~W~~ 1,024.70
Woori Bank 2019~2027 21,708 19,417 5.04% 6.75% 1,118.00
Woori Bank 2020~2025 241,320 200,000 0.54% 1.13% 1,206.60
Korea Development Bank 2020~2025 241,320 200,000 0.54% 1.13% 1,206.60
Kookmin Bank 2020~2025 120,660 100,000 0.54% 1.13% 1,206.60
Kookmin Bank 2020~2026 76,355 70,445 5.83% 6.00% 1,083.90
Woori Bank 2021~2026 118,170 100,000 1.11% 1.13% 1,181.70
Korea Development Bank 2021~2026 118,170 100,000 1.11% 1.13% 1,181.70
Hana Bank 2021~2026 118,170 100,000 1.11% 1.13% 1,181.70
Hana Bank 2022~2025 385,800 300,000 3.11% 3.63% 1,286.00
Woori Bank 2022~2025 257,200 200,000 3.12% 3.63% 1,286.00
JP Morgan 2022~2027 128,600 100,000 3.56% 4.00% 1,286.00
Woori Bank 2022~2027 128,600 100,000 3.56% 4.00% 1,286.00
Kookmin Bank 2022~2027 128,600 100,000 3.56% 4.00% 1,286.00
Korea Development Bank 2022~2026 283,820 200,000 4.67% 5.38% 1,419.10
Hana Bank 2022~2026 141,910 100,000 4.68% 5.38% 1,419.10
JP Morgan 2022~2026 141,910 100,000 4.69% 5.38% 1,419.10
Woori Bank 2022~2026 141,910 100,000 4.68% 5.38% 1,419.10
Korea Development Bank 2022~2028 283,820 200,000 5.12% 5.50% 1,419.10
Woori Bank 2022~2028 141,910 100,000 5.13% 5.50% 1,419.10
Hana Bank 2023~2026 256,000 200,000 3.97% 5.38% 1,280.00
Shinhan Bank 2023~2026 192,000 150,000 3.99% 5.38% 1,280.00
Kookmin Bank 2023~2026 128,000 100,000 4.03% 5.38% 1,280.00
Korea Development Bank 2023~2026 256,000 200,000 4.04% 5.38% 1,280.00
Bank of America 2023~2026 128,000 100,000 4.04% 5.38% 1,280.00
Standard Chartered 2023~2026 128,000 100,000 4.04% 5.38% 1,280.00
Woori Bank 2023~2026 192,000 150,000 4.05% 5.38% 1,280.00
Shinhan Bank 2024~2027 133,060 100,000 3.53% 4.88% 1,330.60
Kookmin Bank 2024~2027 133,060 100,000 3.53% 4.88% 1,330.60
Korea Development Bank 2024~2027 864,890 650,000 3.53% 4.88% 1,330.60
Bank of America 2024~2027 133,060 100,000 3.53% 4.88% 1,330.60
Standard Chartered 2024~2027 133,060 100,000 3.53% 4.88% 1,330.60
IBK Securities Co., Ltd. 2024~2027 199,590 150,000 3.53% 4.88% 1,330.60
Shinhan Bank 2024~2034 138,010 100,000 3.64% 5.13% 1,380.10
Hana Bank 2024~2034 138,010 100,000 3.69% 5.13% 1,380.10
Woori Bank 2024~2034 119,958 86,920 3.74% 5.13% 1,380.10
Nomura 2015~2025 111,190 100,000 2.60% 3.25% 1,111.90
Korea Development Bank 2015~2025 111,190 100,000 2.62% 3.25% 1,111.90
Woori Bank 2015~2025 55,595 50,000 2.62% 3.25% 1,111.90
Hana Bank 2015~2025 55,595 50,000 2.62% 3.25% 1,111.90
Woori Bank 2017~2027 111,610 100,000 2.25% 3.13% 1,116.10
Korea Development Bank 2017~2027 111,610 100,000 2.31% 3.13% 1,116.10
Hana Bank 2017~2027 111,610 100,000 2.31% 3.13% 1,116.10
Korea Development Bank 2018~2028 108,600 HKD 800,000 2.69% 3.35% 135.75
Shinhan Bank 2018~2028 115,387 HKD 850,000 2.66% 3.35% 135.75
Korea Development Bank 2019~2027 119,978 CHF 100,000 1.43% 0.05% 1,199.78
Woori Bank 2021~2026 222,800 200,000 0.93% 1.25% 1,114.00
Shinhan Bank 2021~2026 111,400 100,000 0.92% 1.25% 1,114.00
Korea Development Bank 2021~2026 111,400 100,000 0.93% 1.25% 1,114.00
Nonghyup Bank 2021~2026 111,400 100,000 0.93% 1.25% 1,114.00
Woori Bank 2022~2027 262,000 200,000 3.62% 4.25% 1,310.00
Export-Import Bank of Korea 2022~2027 131,000 100,000 3.63% 4.25% 1,310.00
Kookmin Bank 2022~2027 131,000 100,000 3.62% 4.25% 1,310.00

All values are in US Dollars.

69

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(3) Currency swap contracts which are not designated as hedging instruments as of December 31, 2024 are asfollows, continued:
--- ---
In millions of won and thousands of foreign currencies except contract exchange rate information
--- --- --- --- --- --- --- --- --- --- --- --- ---
Counterparty Contract year Contract amount Contract interest rate Contractexchange rate(in won)
Pay Receive Receive
Hana Bank 2022~2027 ~~W~~ 131,000 100,000 3.61% 4.25% ~~W~~ 1,310.00
Korea Development Bank 2022~2027 262,000 200,000 3.63% 4.25% 1,310.00
Export-Import Bank of Korea 2022~2032 349,829 HKD 1,935,000 4.87% 5.16% 180.79
JP Morgan 2022~2032 75,194 HKD 415,000 5.00% 5.16% 181.19
Export-Import Bank of Korea 2023~2030 172,982 HKD 1,037,000 4.25% 4.51% 166.81
Hana Bank 2024~2028 128,940 100,000 3.73% 5.00% 1,289.40
JP Morgan 2024~2028 128,940 100,000 3.85% 5.00% 1,289.40
Korea Development Bank 2024~2028 257,880 200,000 3.80% 5.00% 1,289.40
Korea Development Bank 2024~2028 128,940 100,000 3.69% 5.00% 1,289.40
Hana Bank 2024~2029 138,540 100,000 3.15% 4.63% 1,385.40
Shinhan Bank 2024~2029 138,540 100,000 3.15% 4.63% 1,385.40
Kookmin Bank 2024~2029 138,540 100,000 3.16% 4.63% 1,385.40
Woori Bank 2024~2029 138,540 100,000 3.17% 4.63% 1,385.40
Korea Development Bank 2024~2029 138,540 100,000 3.19% 4.63% 1,385.40

All values are in US Dollars.

70

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(4) Currency swap contracts which are designated as hedging instruments as of December 31, 2024 are asfollows:
--- ---
In millions of won and thousands of foreign currencies except contract exchange rate information
--- --- --- --- --- --- --- --- --- --- --- --- ---
Counterparty Contract year Contract amount Contract interest rate Contractexchange rate(in won)
Pay Receive Receive
Kookmin Bank 2020~2025 ~~W~~ 118,780 100,000 1.29% 2.13% ~~W~~ 1,187.80
Shinhan Bank 2020~2025 118,780 100,000 1.29% 2.13% 1,187.80
Hana Bank 2020~2025 118,780 100,000 1.29% 2.13% 1,187.80
Korea Development Bank 2020~2026 118,910 100,000 0.61% 1.00% 1,189.10
Hana Bank 2020~2026 118,910 100,000 0.61% 1.00% 1,189.10
Woori Bank 2020~2026 118,910 100,000 0.62% 1.00% 1,189.10
Nomura 2017~2037 52,457 40,000 2.60% 1.70% 1,311.42
Nomura 2017~2037 59,423 SEK 450,000 2.62% 2.36% 132.05
Kookmin Bank 2021~2026 114,230 100,000 1.27% 1.25% 1,142.30
Korea Development Bank 2021~2026 114,230 100,000 1.27% 1.25% 1,142.30
Hana Bank 2021~2026 114,230 100,000 1.27% 1.25% 1,142.30
Korea Development Bank 2022~2027 123,710 100,000 3.41% 3.63% 1,237.10
Woori Bank 2022~2027 123,710 100,000 3.41% 3.63% 1,237.10
JP Morgan 2022~2027 123,710 100,000 3.41% 3.63% 1,237.10
Korea Development Bank 2022~2025 128,560 100,000 3.37% 4.13% 1,285.60
Woori Bank 2022~2025 128,560 100,000 3.37% 4.13% 1,285.60
Kookmin Bank 2022~2025 128,560 100,000 3.37% 4.13% 1,285.60
Woori Bank 2021~2026 220,600 200,000 0.47% 0.75% 1,103.00
Shinhan Bank 2021~2026 220,600 200,000 0.47% 0.75% 1,103.00
Hana Bank 2021~2026 55,150 50,000 0.48% 0.75% 1,103.00
Shinhan Bank 2023~2026 132,930 100,000 4.07% 5.38% 1,329.30
Nonghyup Bank 2023~2026 132,930 100,000 4.05% 5.38% 1,329.30
Kookmin Bank 2023~2026 132,930 100,000 4.07% 5.38% 1,329.30
Woori Bank 2020~2025 245,560 200,000 0.93% 1.75% 1,227.80
Hana Bank 2020~2025 245,560 200,000 0.93% 1.75% 1,227.80
Korea Development Bank 2020~2025 122,780 100,000 0.93% 1.75% 1,227.80
JP Morgan 2022~2025 126,180 100,000 2.80% 3.60% 1,261.80
Hana Bank 2022~2025 126,180 100,000 2.80% 3.60% 1,261.80
Korea Development Bank 2022~2025 252,360 200,000 2.83% 3.60% 1,261.80
Woori Bank 2022~2025 126,180 100,000 2.85% 3.60% 1,261.80
Woori Bank 2023~2028 259,000 200,000 3.83% 4.88% 1,295.00
Korea Development Bank 2023~2028 129,500 100,000 3.85% 4.88% 1,295.00
Bank of America 2023~2028 64,750 50,000 3.85% 4.88% 1,295.00

All values are in US Dollars.

71

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(5) Interest rate swap contracts which are not designated as hedging instruments as of December 31, 2024are as follows:
--- ---
In millions of won and thousands of foreign currencies Contract interest rate per annum
--- --- --- --- --- --- ---
Counterparty Contract year Contract amount Pay Receive
Nomura (*1) 2018~2038 ~~W~~ 30,000 3M CD + 0.10% 3.75%
Shinhan Bank 2021~2025 100,000 2.32% 3M CD + 0.43%
Hana Bank 2022~2027 200,000 3.02% 3M CD + 0.61%
Hana Bank 2022~2027 200,000 3.04% 3M CD + 0.58%
Hana Bank 2022~2027 250,000 3.38% 3M CD + 0.59%
Nomura 2022~2027 200,000 3.55% 3M CD + 0.60%
Shinhan Bank 2022~2027 150,000 3.53% 3M CD + 0.55%
Hana Bank 2022~2027 200,000 3.70% 3M CD + 0.59%
Nomura 2022~2027 300,000 3.89% 3M CD + 0.67%
Hana Bank 2022~2027 200,000 3.93% 3M CD + 0.67%
Nomura 2022~2027 200,000 3.80% 3M CD + 0.68%
Nomura 2022~2027 300,000 4.04% 3M CD + 0.60%
Hana Bank 2022~2027 100,000 4.68% 3M CD + 1.04%
Hana Bank 2022~2027 100,000 5.45% 3M CD + 1.20%
Shinhan Bank 2023~2028 200,000 4.27% 3M CD + 0.76%
Shinhan Bank 2023~2028 50,000 4.27% 3M CD + 0.76%
Nomura 2023~2028 250,000 4.13% 3M CD + 0.73%
Hana Bank 2023~2028 200,000 3.74% 3M CD + 0.51%
Hana Bank 2023~2028 100,000 4.19% 3M CD + 0.50%
Shinhan Bank 2023~2028 300,000 3.81% 3M CD + 0.70%
Hana Bank 2023~2028 200,000 3.95% 3M CD + 0.50%
Shinhan Bank 2024~2029 200,000 3.84% 3M CD + 0.50%
Hana Bank 2024~2027 250,000 3.72% 3M CD + 0.34%
Hana Bank 2024~2027 250,000 3.77% 3M CD + 0.31%
Hana Bank 2024~2027 250,000 3.31% 3M CD + 0.31%
Hana Bank 2024~2027 200,000 3.46% 3M CD + 0.53%
Shinhan Bank 2024~2025 200,000 3.53% 3M CD + 0.35%
Nomura 2024~2027 200,000 3.38% 3M CD + 0.50%
Hana Bank 2024~2027 300,000 3.18% 3M CD + 0.53%
Shinhan Bank 2024~2025 100,000 3.29% 3M CD + 0.42%
Nomura 2017~2032 52,457 2.55% + Floating rate 2.60%
Nomura 2017~2032 59,423 2.57% + Floating rate 2.62%
Nomura (*2) 2021~2041 30,000 1.84% 2.60%
Nomura (*3) 2021~2041 50,000 1.87% 2.38%
ANZ 2022~2025 AUD 865 0.48% 3M BBSW + 0.05%
DBS Bank 2022~2025 AUD 865 0.48% 3M BBSW + 0.05%
Societe Generale 2022~2025 AUD 865 0.48% 3M BBSW + 0.05%
MUFG 2022~2048 USD 155,941 3M SOFR 3.71%
Mizuho Capital Markets LLC 2022~2048 USD 155,941 3M SOFR 1.05%
Mizuho Capital Markets LLC 2024~2025 USD 112,194 1M SOFR 4.20%
Rabobank 2022~2036 USD 37,130 1.83% 6M SOFR
Mizuho Capital Markets LLC 2024~2045 USD 80,116 3M USD Synthetic Libor 1.14%
(*1) Depending on the counterparty exercising the right, the contract may be early settled on the same date every<br>year from June 15, 2023.
--- ---
(*2) 1.84% of the contract paying interest rate is applied for five years from the date of issuance, and 3M<br>CMT+0.35% is applied thereafter.
--- ---
(*3) 1.87% of the contract paying interest rate is applied for five years from the date of issuance, and 3M<br>CMT+0.35% is applied thereafter.
--- ---

72

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

12. Derivatives, Continued
(6) Interest rate swap contracts which are designated as hedging instruments as of December 31, 2024 are asfollows:
--- ---
In thousands of Contract interest rate per annum
--- --- --- --- --- --- ---
Counterparty Contract<br>amount Pay Receive
Export-Import Bank of Korea 2015~2031 USD 15,893 2.67% 6M USD Synthetic Libor
ING Bank 2015~2031 USD 7,861 2.67% 6M USD Synthetic Libor
BNP Paribas 2015~2031 USD 7,861 2.67% 6M USD Synthetic Libor
BNP Paribas 2009~2027 USD 35,221 4.16% 6M USD Synthetic Libor
KFW 2009~2027 USD 35,221 4.16% 6M USD Synthetic Libor
Export-Import Bank of Korea 2016~2036 USD 56,175 3.00% 6M USD Synthetic Libor

All values are in US Dollars.

(7) Gains and losses on valuation and transaction of derivatives for each of the two years in the period endedDecember 31, 2024 are as follows and they are included as finance income and expenses in the consolidated statements of comprehensive income (loss):
In millions of won Net income effects of valuation gain (loss) Net income effects oftransaction gain (loss) Accumulated other<br>comprehensive income (loss) (*)
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year endedDecember 31, 2024 For the year endedDecember 31, 2023 For the year endedDecember 31, 2024 For the year endedDecember 31, 2023 For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
Currency forward ~~W~~ 12,021 510 78,237 34,216
Currency swap 2,058,411 269,795 190,000 38,282 18,622 (11,411 )
Interest rate swap 21,270 (16,377 ) 18,834 10,400 1,684 2,893
Other derivatives 12,009 (19,729 ) 15,586 6,761
~~W~~ 2,103,711 234,199 302,657 89,659 20,306 (8,518 )
(*) For each of the two years ended December 31, 2024 and 2023, the net gain(loss) on valuation of derivatives<br>applying cash flow hedge accounting of ~~W~~11,870 million and ~~W~~(3,654) million, net of tax, are included in other comprehensive income, respectively.
--- ---

73

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

13. Other Financial Assets
(1) Other financial assets as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Loans ~~W~~ 115,161 901,953 139,178 966,421
Less: allowance for doubtful accounts (5,156 ) (66,838 ) (10 ) (80,783 )
Less: present value discount (1,084 ) (35,888 ) (1,007 ) (35,468 )
108,921 799,227 138,161 850,170
Long-term / short-term financial instruments 1,147,929 812,211 578,578 833,737
~~W~~ 1,256,850 1,611,438 716,739 1,683,907
(2) Loans as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
Face value Allowance fordoubtful accounts Present valuediscount Carrying value
Short-term loans
Loans for tuition ~~W~~ 34,484 (5,156 ) (1,084 ) 28,244
Loans for housing 43,171 43,171
Other loans 37,506 37,506
115,161 (5,156 ) (1,084 ) 108,921
Long-term loans
Loans for tuition 364,685 (4,888 ) (35,888 ) 323,909
Loans for housing 266,208 266,208
Loans for related parties 260,227 (61,950 ) 198,277
Other loans 10,833 10,833
901,953 (66,838 ) (35,888 ) 799,227
~~W~~ 1,017,114 (71,994 ) (36,972 ) 908,148
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Face value Allowance fordoubtful accounts Present valuediscount Carrying value
Short-term loans
Loans for tuition ~~W~~ 30,497 (1,007 ) 29,490
Loans for housing 35,560 35,560
Other loans 73,121 (10 ) 73,111
139,178 (10 ) (1,007 ) 138,161
Long-term loans
Loans for tuition 419,684 (24,745 ) (35,468 ) 359,471
Loans for housing 301,840 301,840
Loans for related parties 222,014 (43,640 ) 178,374
Other loans 22,883 (12,398 ) 10,485
966,421 (80,783 ) (35,468 ) 850,170
~~W~~ 1,105,599 (80,793 ) (36,475 ) 988,331

74

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

13. Other Financial Assets, Continued
(3) Changes in the allowance for doubtful accounts of loans for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- ---
Beginning balance ~~W~~ 80,793 54,837
Bad debts expense (reversal) 3,727 16,394
Write-off (12,526 )
Others 9,562
Ending balance ~~W~~ 71,994 80,793
(4) Long-term and short-term financial instruments as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Time deposits ~~W~~ 823,806 135,995 363,286 145,336
CD 40,000
Others 284,123 676,216 215,292 688,401
~~W~~ 1,147,929 812,211 578,578 833,737

75

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

14. Inventories

Inventories as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024
Acquisition cost Valuation allowance Book value
Raw materials ~~W~~ 4,914,250 (1,573 ) 4,912,677
Merchandises 1,733 1,733
Work-in-progress 220,110 220,110
Finished goods 96,390 (630 ) 95,760
Supplies 3,358,831 3,358,831
Inventories-in-transit 1,160,238 1,160,238
Other inventories 19,887 19,887
~~W~~ 9,771,439 (2,203 ) 9,769,236
In millions of won As of December 31, 2023
Acquisition cost Valuation allowance Book value
Raw materials ~~W~~ 4,624,638 (1,387 ) 4,623,251
Merchandises 335 335
Work-in-progress 187,304 187,304
Finished goods 97,272 (57 ) 97,215
Supplies 2,930,978 2,930,978
Inventories-in-transit 1,021,797 1,021,797
Other inventories 14,735 14,735
~~W~~ 8,877,059 (1,444 ) 8,875,615

The reversal of the allowance for loss on inventory valuation deducted from the cost of sales for each of the two years in the period ended December 31, 2024 amounts to ~~W~~9,182 million and ~~W~~9,974 million, respectively.

The amounts of loss from inventory valuation included in other gains or losses for each of the two years in the period ended December 31, 2024 were ~~W~~9,941 million and ~~W~~9,936 million, respectively.

76

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

15. Non-Financial Assets

Non-financial assets as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Current Non-current Current Non-current
Advanced payments ~~W~~ 467,156 66,174 300,350 75,489
Prepaid expenses 431,087 221,922 440,079 214,022
Others (*) 369,671 40,108 368,892 60,659
~~W~~ 1,267,914 328,204 1,109,321 350,170
(*) Details of others as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Greenhouse gas emissions rights ~~W~~ 211,969 25,246
Other quick assets 157,702 40,108 343,646 60,659
~~W~~ 369,671 40,108 368,892 60,659

77

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries
(1) Consolidated subsidiaries as of December 31, 2024 and 2023 are as follows:
--- ---
Subsidiaries Key operation activities Location Percentage of ownership (%)
--- --- --- --- --- --- --- --- ---
As of December 31,2024 As of December 31,2023
Korea Hydro & Nuclear Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
Korea South-East Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
Korea Midland Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
Korea Western Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
Korea Southern Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
Korea East-West Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
KEPCO Engineering & Construction Company, Inc. (*1) Engineering and construction for utility plant and others Korea 51.00 % 51.00 %
KEPCO Plant Service & Engineering Co., Ltd. Utility plant maintenance and others Korea 51.00 % 51.00 %
KEPCO Nuclear Fuel Co., Ltd. Nuclear fuel Korea 96.36 % 96.36 %
KEPCO KDN Co., Ltd. Electric power information technology and others Korea 100.00 % 100.00 %
KEPCO International HongKong Ltd. Holding company Hong Kong 100.00 % 100.00 %
KEPCO International Philippines Inc. Holding company Philippines 100.00 % 100.00 %
KEPCO Gansu International Ltd. Holding company Hong Kong 100.00 % 100.00 %
KEPCO Philippines Holdings Inc. Holding company Philippines 100.00 % 100.00 %
KEPCO Philippines Corporation Operation of utility plant Philippines 100.00 % 100.00 %
KEPCO Ilijan Corporation Construction and operation of utility plant Philippines 51.00 % 51.00 %
KEPCO Neimenggu International Ltd. Holding company Hong Kong 100.00 % 100.00 %
KEPCO Shanxi International Ltd. Holding company Hong Kong 100.00 % 100.00 %
KOMIPO Global Pte Ltd. Holding company Singapore 100.00 % 100.00 %
KEPCO Netherlands B.V. Holding company Netherland 100.00 % 100.00 %
KEPCO Australia Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOSEP Australia Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOMIPO Australia Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOWEPO Australia Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOSPO Australia Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KEPCO Middle East Holding Company Holding company Bahrain 100.00 % 100.00 %
Qatrana Electric Power Company Construction and operation of utility plant Jordan 80.00 % 80.00 %
KHNP Canada Energy Ltd. Holding company Canada 100.00 % 100.00 %
KEPCO Bylong Australia Pty., Ltd. Resources development Australia 100.00 % 100.00 %
Korea Waterbury Uranium Limited Partnership Resources development Canada 80.12 % 80.03 %
KEPCO Holdings de Mexico Holding company Mexico 100.00 % 100.00 %
KST Electric Power Company, S.A.P.I. de C.V. Construction and operation of utility plant Mexico 56.00 % 56.00 %
KEPCO Energy Service Company Operation of utility plant Mexico 100.00 % 100.00 %
KEPCO Netherlands S3 B.V. Holding company Netherlands 100.00 % 100.00 %
PT. KOMIPO Pembangkitan Jawa Bali Operation of utility plant Indonesia 51.00 % 51.00 %
PT. Cirebon Power Service (*2) Operation of utility plant Indonesia 27.50 % 27.50 %
KOWEPO International Corporation Operation of utility plant Philippines 99.99 % 99.99 %
KOSPO Jordan LLC Operation of utility plant Jordan 100.00 % 100.00 %
EWP America Inc. Holding company USA 100.00 % 100.00 %
EWP Renewable Corporation Holding company USA 100.00 % 100.00 %
KNF Canada Energy Limited Holding company Canada 100.00 % 100.00 %
EWP Barbados 1 SRL Holding company Barbados 100.00 % 100.00 %
California Power Holdings, LLC Power generation USA 100.00 % 100.00 %
Gyeonggi Green Energy Co., Ltd. Power generation Korea 62.01 % 62.01 %
PT. Tanggamus Electric Power Power generation Indonesia 52.50 % 52.50 %
Gyeongju Wind Power Co., Ltd. Power generation Korea 70.00 % 70.00 %
KOMIPO America Inc. Holding company USA 100.00 % 100.00 %
PT. EWP Indonesia Holding company Indonesia 99.99 % 99.96 %
KEPCO Netherlands J3 B.V. Holding company Netherlands 100.00 % 100.00 %
Korea Offshore Wind Power Co., Ltd. Power generation Korea 100.00 % 100.00 %
Global One Pioneer B.V. Holding company Netherlands 100.00 % 100.00 %
Global Energy Pioneer B.V. Holding company Netherlands 100.00 % 100.00 %
Mira Power Limited (*3) Power generation Pakistan 76.00 % 76.00 %
KOSEP Material Co., Ltd. Recycling fly ashes Korea 86.22 % 86.22 %
Commerce and Industry Energy Co., Ltd. (*4) RDF power generation Korea 85.03 % 85.03 %

78

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(1) Consolidated subsidiaries as of December 31, 2024 and 2023 are as follows, continued:
--- ---
Subsidiaries Key operation activities Location Percentage of ownership (%)
--- --- --- --- --- --- --- --- ---
As of December 31,2024 As of December 31,2023
KEPCO KPS Philippines Corp. Utility plant maintenance and others Philippines 99.99 % 99.99 %
KOSPO Chile SpA Holding company Chile 100.00 % 100.00 %
PT. KOWEPO Sumsel Operation And Maintenance Services Utility plant maintenance and others Indonesia 95.00 %
Hee Mang Sunlight Power Co., Ltd. Operation of utility plant Korea 100.00 % 100.00 %
Fujeij Wind Power Company Operation of utility plant Jordan 100.00 % 100.00 %
KOSPO Youngnam Power Co., Ltd. Operation of utility plant Korea 100.00 % 100.00 %
Chitose Solar Power Plant LLC Power generation Japan 65.00 % 65.00 %
KEPCO ES Co., Ltd. Energy service Korea 100.00 % 100.00 %
KEPCO Solar Co., Ltd. Power generation Korea 100.00 % 100.00 %
KOSPO Power Services Ltda. Utility plant maintenance and others Chile 65.00 % 65.00 %
Energy New Industry Specialized Investment Private Investment Trust Holding company Korea 99.01 % 99.01 %
KOEN Bylong Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOMIPO Bylong Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOWEPO Bylong Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOSPO Bylong Pty., Ltd. Resources development Australia 100.00 % 100.00 %
EWP Bylong Pty., Ltd. Resources development Australia 100.00 % 100.00 %
KOWEPO Lao International Utility plant maintenance and others Laos 100.00 % 100.00 %
KEPCO Mangilao Holdings LLC Holding company USA 100.00 % 100.00 %
Mangilao Investment LLC Holding company USA 69.55 % 80.06 %
KEPCO Mangilao Solar, LLC Power generation USA 100.00 % 100.00 %
Jeju Hanlim Offshore Wind Co., Ltd. Power generation Korea 79.03 % 79.03 %
PT. Siborpa Eco Power Construction and operation of utility plant Indonesia 55.00 % 55.00 %
BSK E-New Industry Fund VII Holding company Korea 81.67 % 81.67 %
e-New Industry LB Fund 1 Holding company Korea 76.11 % 76.11 %
Songhyun e-New Industry Fund Holding company Korea 80.65 % 80.65 %
BSK E-New Industry Fund X Holding company Korea 66.80 % 66.80 %
PT. Korea Energy Indonesia Utility plant maintenance and others Indonesia 95.00 % 95.00 %
KOLAT SpA Utility plant maintenance and others Chile 100.00 % 100.00 %
KEPCO California, LLC Holding company USA 100.00 % 100.00 %
KEPCO Mojave Holdings, LLC Holding company USA 100.00 % 100.00 %
Incheon Fuel Cell Co., Ltd. Power generation Korea 60.00 % 60.00 %
KOEN Service Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
KOMIPO Service Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
KOWEPO Service Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
KOSPO Service Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
EWP Service Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
PT. KOMIPO Energy Indonesia Utility plant maintenance and others Indonesia 95.00 % 95.00 %
KNF Partners Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
KOSPO USA Inc. Holding company USA 100.00 % 100.00 %
KOSPO Niles LLC (formerly, Nambu USA LLC) Holding company USA 100.00 % 100.00 %
Tamra Offshore Wind Power Co., Ltd. Power generation Korea 63.00 % 63.00 %
KEPCO MCS Co., Ltd. Electric meter reading and others Korea 100.00 % 100.00 %
KEPCO FMS Co., Ltd. Security service and others Korea 100.00 % 100.00 %
Firstkeepers Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
Secutec Co., Ltd. Security service Korea 100.00 % 100.00 %
SE Green Energy Co., Ltd. Power generation Korea 84.80 % 84.80 %
Mangilao Intermediate Holdings LLC Holding company USA 100.00 % 100.00 %
KEPCO CSC Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
KOAK Power Limited Hydro power facility maintenance Pakistan 100.00 % 100.00 %
KOMIPO Europe B.V. Holding company Netherlands 100.00 % 100.00 %
Haenanum Energy Fund Holding company Korea 99.64 % 99.64 %
Paju Ecoenergy Co., Ltd. Power generation Korea 89.00 % 89.00 %
Guam Ukudu Power LLC Power generation USA 100.00 % 100.00 %
K-SOLAR SHINAN Co., Ltd. Power generation Korea 90.00 % 90.00 %
KPS Partners Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %
KEPCO E&C Service Co., Ltd. Facility maintenance and service Korea 100.00 % 100.00 %

79

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(1) Consolidated subsidiaries as of December 31, 2024 and 2023 are as follows, continued:
--- ---
Subsidiaries Key operation activities Location Percentage of ownership (%)
--- --- --- --- --- --- --- --- ---
As of December 31,2024 As of December 31,2023
Moha solar Co., Ltd. Power generation Korea 100.00 % 100.00 %
Ogiri Solar Power Co., Ltd. Power generation Korea 70.00 % 70.00 %
KHNP USA LLC Holding company USA 100.00 % 100.00 %
KOMIPO Vanphong Power Service LLC Utility plant maintenance and others Vietnam 100.00 % 100.00 %
Energy Innovation Fund I Holding company Korea 71.91 % 71.91 %
KHNP Chile SpA Holding company Chile 100.00 % 100.00 %
Yeong Yang Apollon Photovoltaic Co., Ltd. Power generation Korea 100.00 % 100.00 %
Yeong Yang Corporation Co., Ltd. Power generation Korea 100.00 % 100.00 %
SolarVader Co., Ltd. Power generation Korea 100.00 % 100.00 %
Yeong Yang Innovation Co., Ltd. Power generation Korea 100.00 % 100.00 %
Yeong Yang Horus Photovoltaic Co., Ltd. Power generation Korea 100.00 % 100.00 %
Yeong Yang Solar Management Co., Ltd. Power generation Korea 100.00 % 100.00 %
LSG Hydro Power Limited Holding company Pakistan 99.99 % 99.80 %
KOEN Bio Co., Ltd. Wood pellet utilization business Korea 70.00 % 70.00 %
KOMIPO Energy Solution America, LLC Holding company USA 100.00 % 100.00 %
Elara Investment Holdings, LLC (*5) Holding company USA 0.10 % 0.10 %
Elara Equity Holdings, LLC Holding company USA 54.00 % 54.00 %
Elara Class B Holdings, LLC Holding company USA 100.00 % 100.00 %
Elara Class B Member, LLC Holding company USA 100.00 % 100.00 %
Elara Development Holdings, LLC Holding company USA 100.00 % 100.00 %
KOMIPO Development, LLC Holding company USA 100.00 % 100.00 %
Elara Energy Holdings, LLC Holding company USA 61.62 % 43.94 %
Elara Energy Project, LLC Power generation USA 100.00 % 100.00 %
KOMIPO Iberian Solar Group, S.L.U. Holding company Spain 100.00 % 100.00 %
Jeongam Wind Power Co., Ltd. Power generation Korea 80.00 % 80.00 %
KOWEPO Europe B.V. Holding company Netherlands 100.00 % 100.00 %
CVS Equity Holdings, LLC Holding company USA 80.96 % 81.34 %
CVS Class B Holdings, LLC Holding company USA 100.00 % 100.00 %
CVS Development Holdings, LLC Holding company USA 100.00 % 100.00 %
CVS Development, LLC Holding company USA 100.00 % 100.00 %
CVS Class B Member, LLC Holding company USA 100.00 % 100.00 %
CVS Energy Holdings, LLC Holding company USA 62.62 % 70.79 %
Concho Valley Energy, LLC Holding company USA 100.00 % 100.00 %
Concho Valley Solar, LLC Power generation USA 100.00 % 100.00 %
Yeongdeok Sunrise Wind Power Co., Ltd. Power generation Korea 70.00 % 70.00 %
UI Carbon-Neutrality Fund Holding company Korea 78.97 % 78.97 %
KA Power Limited Power generation Pakistan 100.00 % 100.00 %
Western Power Changgi Solar Co., Ltd. Power generation Korea 100.00 % 100.00 %
EWP Australia Pty., Ltd. Holding company Australia 100.00 % 100.00 %
Columboola Solar Farm Hold Co Pty., Ltd. (*3,6) Holding company Australia 74.04 % 74.04 %
Digital Innovation Growth Fund Holding company Korea 76.92 % 76.92 %
J Wind First, LLC (*7) Company specializing in liquidization Korea
KEPCO Holding Company Holding company Saudi Arabia 100.00 % 100.00 %
KEPCO for Maintenance Company Utility plant maintenance and others Saudi Arabia 100.00 % 100.00 %
KOSPO Trumbull LLC Holding company USA 100.00 % 100.00 %
Changjuk Wind Power Co., Ltd. Power generation Korea 73.00 % 73.00 %
Chile Solar JV SpA Power generation Chile 100.00 % 100.00 %
KEPCO KPS South Africa Pty., Ltd. Utility plant maintenance and others Republic of South Africa 98.96 % 100.00 %
KOWEPO Holding Limited Holding company United Arab Emirates 100.00 % 100.00 %
Magna Energy New Industrial Fund Holding company Korea 71.30 % 82.00 %
Columboola Solar Farm Nominees Pty., Ltd. (*3) Power generation Australia 100.00 % 100.00 %
Columboola Solar Farm Op Trust (*3) Power generation Australia 100.00 % 100.00 %
Columboola Solar Farm Fin Co Pty., Ltd. (*3) Holding company Australia 100.00 % 100.00 %
EWP ESS Holdings, LLC Holding company USA 100.00 % 100.00 %
Fairhaven ESS LLC Holding company USA 100.00 % 100.00 %
KOSPO Rutile, LLC Holding company USA 100.00 %
Sprott Chile Solar I SpA Holding company Chile 100.00 %

80

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(1) Consolidated subsidiaries as of December 31, 2024 and 2023 are as follows, continued:
--- ---
(*1) Considering treasury stocks, the effective percentage of ownership is 51.24%. The Group sold a portion of its<br>stocks in the subsidiary (14.77%) during the year ended December 31, 2023.
--- ---
(*2) The effective percentage of ownership is less than 50%. However, this subsidiary is included in the<br>consolidated financial statements as the Group obtained the majority of the voting power under the shareholders’ agreement.
--- ---
(*3) As of December 31, 2024, the annual reporting period of all subsidiaries ends on December 31, except<br>for Mira Power Limited, Columboola Solar Farm Hold Co Pty., Ltd., Columboola Solar Farm Nominees Pty., Ltd., Columboola Solar Farm Op Trust and Columboola Solar Farm Fin Co Pty., Ltd.
--- ---
(*4) The Group guarantees a certain return on investments in Commerce and Industry Energy Co., Ltd. for the<br>financial investors holding such investments. The financial investors have a right to claim the Group to sell its shares in the entity, which can be exercised 36 months after the date of acquisition.
--- ---
(*5) The effective percentage of ownership is less than 50%. However, this subsidiary is included in the<br>consolidated financial statements as the Group has control over the board of directors under the shareholders’ agreement.
--- ---
(*6) Excluding preferred stocks, the percentage of ownership with voting rights is 100%.
--- ---
(*7) Although the Group does not hold a stake as of December 31, 2024, considering the purpose and design of<br>the structured entity, the Group is exposed to volatility in the profits of the structured entity. In addition, The Group has the ability to direct activities that can most significantly affect the operations of the structured entity, so it has been<br>determined that the Group has control over the entity.
--- ---
(2) Subsidiaries included in and excluded from consolidation for the year ended December 31, 2024 are asfollows:
--- ---

<Subsidiaries included in consolidation for the year ended December 31, 2024>

Subsidiaries Reason
KOSPO Rutile, LLC New investment
Sprott Chile Solar I SpA New investment

<Subsidiary excluded from consolidation for the year ended December 31, 2024>

Subsidiaries Reason
PT. KOWEPO Sumsel Operation and Maintenance Services Liquidation

81

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(3) The summarized financial information of consolidated subsidiaries as of and for each of the two years in theperiod ended December 31, 2024 is as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Subsidiaries Total<br>assets Total<br>liabilities Sales Profit (loss)<br>for the period
Korea Hydro & Nuclear Power Co., Ltd. ~~W~~ 72,508,359 47,082,862 13,447,880 567,267
Korea South-East Power Co., Ltd. 13,203,109 6,447,903 6,527,922 382,336
Korea Midland Power Co., Ltd. 14,849,596 9,513,087 7,088,426 225,196
Korea Western Power Co., Ltd. 13,309,836 7,708,730 6,193,922 361,725
Korea Southern Power Co., Ltd. 13,184,059 7,101,465 6,430,487 311,530
Korea East-West Power Co., Ltd. 12,287,969 5,592,569 5,322,832 467,885
KEPCO Engineering & Construction Company, Inc. 945,384 367,910 553,363 58,513
KEPCO Plant Service & Engineering Co., Ltd. 1,675,776 355,479 1,534,269 170,967
KEPCO Nuclear Fuel Co., Ltd. 1,060,367 562,604 397,595 48,061
KEPCO KDN Co., Ltd. 846,361 222,119 781,646 215,791
KEPCO International HongKong Ltd. 149,757 1,611 7,596
KEPCO International Philippines Inc. 13,720 78 40,427
KEPCO Gansu International Ltd. 8,233 693 (5 )
KEPCO Philippines Holdings Inc. 202,810 173 49,999
KEPCO Philippines Corporation 2,990 4 120
KEPCO Ilijan Corporation 58,752 615 4,549
KEPCO Neimenggu International Ltd. 323,519 4,839 10,891
KEPCO Shanxi International Ltd. 811,971 366,377 13,677
KOMIPO Global Pte Ltd. 454,052 2,716 15,618
KEPCO Netherlands B.V. 155,632 109 4,237
KEPCO Australia Pty., Ltd. 226 (4,017 )
KOSEP Australia Pty., Ltd. 55,461 7,847 31,935 10,139
KOMIPO Australia Pty., Ltd. 94,760 3,214 31,935 6,253
KOWEPO Australia Pty., Ltd. 93,353 2,736 31,935 4,978
KOSPO Australia Pty., Ltd. 39,606 3,221 31,935 8,768
KEPCO Middle East Holding Company 136,740 129,721 (7,668 )
Qatrana Electric Power Company 554,387 207,773 28,465 24,062
KHNP Canada Energy Ltd. 180,220 20,431 506
KEPCO Bylong Australia Pty., Ltd. 45,420 552,861 (69,620 )
Korea Waterbury Uranium Limited Partnership 20,773 62 (142 )
KEPCO Holdings de Mexico 670 3,025 (1,032 )
KST Electric Power Company, S.A.P.I. de C.V. 654,086 532,766 67,656 24,713
KEPCO Energy Service Company 2,257 1,198 9,361 146
KEPCO Netherlands S3 B.V. 81,554 19,084 978
PT. KOMIPO Pembangkitan Jawa Bali 18,014 3,684 21,567 969
PT. Cirebon Power Service 3,004 823 10,515 586
KOWEPO International Corporation 11
KOSPO Jordan LLC 36,620 22,271 17,477 4,312
EWP America Inc. (*1) 49,381 3,120 14,888 332
KNF Canada Energy Limited 2,337 30 (67 )
EWP Barbados 1 SRL 469,387 1,463 28,937
Gyeonggi Green Energy Co., Ltd. 160,060 226,650 60,769 (31,941 )
PT. Tanggamus Electric Power 232,963 155,119 6,136 4,216
Gyeongju Wind Power Co., Ltd. 87,987 41,547 18,550 5,817
KOMIPO America Inc. (*2) 633,218 328,237 18,806 9,662
PT. EWP Indonesia 101,015 84 6,115
KEPCO Netherlands J3 B.V. 174,130 15,748 7,378
Korea Offshore Wind Power Co., Ltd. 336,687 131,463 41,489 14,607
Global One Pioneer B.V. 150 64 (130 )
Global Energy Pioneer B.V. 363 69 (131 )
Mira Power Limited 443,556 332,629 4,213 11,499
KOSEP Material Co., Ltd. 6,111 539 5,016 1,108
Commerce and Industry Energy Co., Ltd. 65,954 25,841 35,054 (3,638 )
KEPCO KPS Philippines Corp. 6,403 594 7,372 422
KOSPO Chile SpA 186,200 83,705 (1,185 )

82

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(3) The summarized financial information of consolidated subsidiaries as of and for each of the two years in theperiod ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Subsidiaries Totalassets Total<br>liabilities Sales Profit (loss)<br>for the period
Hee Mang Sunlight Power Co., Ltd. ~~W~~ 5,875 2,355 567 46
Fujeij Wind Power Company 245,967 171,610 14,962
KOSPO Youngnam Power Co., Ltd. 371,946 257,626 412,037 10,275
Chitose Solar Power Plant LLC 93,435 78,709 14,453 2,553
KEPCO ES Co., Ltd. 318,648 6,087 6,384 8,758
KEPCO Solar Co., Ltd. 240,555 29,240 20,788 6,210
KOSPO Power Services Ltda. 8,118 6,363 17,005 1,924
Energy New Industry Specialized Investment Private Investment Trust (*3) 483,585 3,358 22,608
KOEN Bylong Pty., Ltd. 15 165 (12 )
KOMIPO Bylong Pty., Ltd. 15 172 (17 )
KOWEPO Bylong Pty., Ltd. 15 168 (17 )
KOSPO Bylong Pty., Ltd. 202 425 (57 )
EWP Bylong Pty., Ltd. 15 13 2
KOWEPO Lao International 17,335 2,247 11,891 4,823
KEPCO Mangilao Holdings LLC 99,669 52,732 810 (7,804 )
Mangilao Investment LLC 224,646 18
KEPCO Mangilao Solar, LLC 226,509 247 16,907 3,634
Jeju Hanlim Offshore Wind Co., Ltd. 590,613 524,640 10,872 (5,067 )
PT. Siborpa Eco Power 13,877 3 (38 )
PT. Korea Energy Indonesia 9,146 5,524 4,550 1,171
KOLAT SpA 49,452 406 2,880 1,090
KEPCO California, LLC 52,627 7,464 645 (507 )
KEPCO Mojave Holdings, LLC 101,912 90,646 (3,950 )
Incheon Fuel Cell Co., Ltd. 249,022 233,049 91,097 (5,805 )
KOEN Service Co., Ltd. 10,072 7,186 39,482 323
KOMIPO Service Co., Ltd. 8,123 4,728 38,415 657
KOWEPO Service Co., Ltd. 8,422 6,678 40,875 314
KOSPO Service Co., Ltd. 7,199 4,593 32,422 949
EWP Service Co., Ltd. 5,291 3,851 27,101 27
PT. KOMIPO Energy Indonesia 5,177 1,273 6,433 874
KNF partners Co., Ltd. 2,875 1,182 6,700 286
KOSPO USA Inc. 725,984 321 (6,099 )
KOSPO Niles LLC (formerly, Nambu USA LLC) 326,651 51 9,947
Tamra Offshore Wind Power Co., Ltd. 112,747 74,809 19,937 1,551
KEPCO MCS Co., Ltd. 94,305 67,881 292,011 (9,033 )
KEPCO FMS Co., Ltd. 16,330 18,815 108,560 1,126
Firstkeepers Co., Ltd. 24,800 13,930 95,836 4,546
Secutec Co., Ltd. 17,416 11,980 78,011 1,968
SE Green Energy Co., Ltd. 126,012 93,330 41,251 178
Mangilao Intermediate Holdings LLC 230,079 126,833 (1,277 )
KEPCO CSC Co., Ltd. 17,430 11,516 49,443 2,944
KOAK Power Limited 16,961 322 (75 )
KOMIPO Europe B.V. 84,899 123 890 (6,403 )
Haenanum Energy Fund 7,415 3 493 445
Paju Ecoenergy Co., Ltd. 61,836 2,635 16,306 697
Guam Ukudu Power LLC 940,137 960,812 112,782 (39,280 )
K-SOLAR SHINAN Co., Ltd. 279,204 263,030 34,148 907

83

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(3) The summarized financial information of consolidated subsidiaries as of and for each of the two years in theperiod ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Subsidiaries Totalassets Total<br>liabilities Sales Profit (loss)<br>for the period
KPS Partners Co., Ltd. ~~W~~ 4,264 2,298 14,053 487
KEPCO E&C Service Co., Ltd. 8,437 1,738 16,861 1,578
Moha solar Co., Ltd. 25,946 28,391 (273 )
Ogiri Solar Power Co., Ltd. 1,077 21 77 55
KHNP USA LLC 2,170 400 1,196 186
KOMIPO Vanphong Power Service LLC 39,147 3,592 26,235 9,951
Energy Innovation Fund I 40,554 894 (899 )
KHNP Chile SpA 6,081 4,818 (60 )
Yeong Yang Apollon Photovoltaic Co., Ltd. 1,422 1,324 194 (4 )
Yeong Yang Corporation Co., Ltd. 1,403 1,314 190 (12 )
SolarVader Co., Ltd. 1,413 1,317 195 (12 )
Yeong Yang Innovation Co., Ltd. 1,407 1,314 188 1
Yeong Yang Horus Photovoltaic Co., Ltd. 1,395 1,314 184 (3 )
Yeong Yang Solar Management Co., Ltd. 1,415 1,318 198 (23 )
LSG Hydro Power Limited 629 12 (187 )
KOEN Bio Co., Ltd. 1,179 683 1,570 90
KOMIPO Iberian Solar Group, S.L.U. 76,858 69,709 (3,786 )
Jeongam Wind Power Co., Ltd. 70,772 60,170 7,094 (2,113 )
KOWEPO Europe B.V. 35 3,511 (181 )
Yeongdeok Sunrise Wind Power Co., Ltd. 112,863 87,437 7,717 3,555
KA Power Limited 6,620 3,375 (207 )
Western Power Changgi Solar Co., Ltd. 43,393 36,938 6,461 321
EWP Australia Pty., Ltd. 67,756 358 12,457
Columboola Solar Farm Hold Co Pty., Ltd. (*4) 342,603 222,480 8,349 20,622
Digital Innovation Growth Fund 11,989 172 1,745
J Wind First, LLC 54,456 54,456 2,992
KEPCO Holding Company 3,727 (35 )
KEPCO for Maintenance Company 12,192 10,078 2,726 1,838
KOSPO Trumbull LLC 336,425
Changjuk Wind Power Co., Ltd. 25,434 2,815 5,983 686
Chile Solar JV SpA 96,796 81,288 9,862 (5,411 )
KEPCO KPS South Africa Pty., Ltd. 10,784 4,688 19,713 266
KOWEPO Holding Limited 9,108 888 7,679
KOSPO Rutile, LLC 147
Sprott Chile Solar I SpA 8,682 27 1
(*1) Financial information of EWP America Inc. includes that of 4 other subsidiaries, EWP Renewable Corporation,<br>California Power Holdings LLC, EWP ESS Holdings, LLC, and Fairhaven ESS LLC.
--- ---
(*2) Financial information of KOMIPO America Inc. includes that of 17 other subsidiaries including Elara Equity<br>Holdings, LLC and CVS Equity Holdings, LLC.
--- ---
(*3) Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of 6<br>other subsidiaries, BSK E-New Industry Fund VII, e-New Industry LB Fund 1, Songhyun e-New Industry Fund, BSK E-New Industry Fund X, UI Carbon-Neutrality Fund, and Magna Energy New Industrial Fund.
--- ---
(*4) Financial information of Columboola Solar Farm Hold Co Pty., Ltd. includes that of 3 other subsidiaries<br>including Columboola Solar Farm Nominees Pty., Ltd.
--- ---

84

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(3) The summarized financial information of consolidated subsidiaries as of and for each of the two years in theperiod ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Subsidiaries Total<br>assets Total<br>liabilities Sales Profit (loss)<br>for the year
Korea Hydro & Nuclear Power Co., Ltd. ~~W~~ 70,535,018 45,660,916 10,798,378 151,638
Korea South-East Power Co., Ltd. 13,158,245 6,964,695 7,761,713 196,522
Korea Midland Power Co., Ltd. 15,309,205 10,368,698 7,611,821 (1,844 )
Korea Western Power Co., Ltd. 12,710,246 7,648,441 6,915,233 126,519
Korea Southern Power Co., Ltd. 13,405,076 7,807,334 7,298,989 226,811
Korea East-West Power Co., Ltd. 11,683,112 5,626,034 5,571,885 139,013
KEPCO Engineering & Construction Company, Inc. 854,704 307,396 545,092 32,654
KEPCO Plant Service & Engineering Co., Ltd. 1,585,380 318,597 1,523,031 161,849
KEPCO Nuclear Fuel Co., Ltd. 1,101,960 622,157 284,066 43,533
KEPCO KDN Co., Ltd. 733,434 301,713 738,833 65,495
KEPCO International HongKong Ltd. 133,915 8,795
KEPCO International Philippines Inc. 72,830 4,891
KEPCO Gansu International Ltd. 7,226 608 (23 )
KEPCO Philippines Holdings Inc. 180,592 96 8,802
KEPCO Philippines Corporation 2,607 127
KEPCO Ilijan Corporation 142,711 800 3,718
KEPCO Neimenggu International Ltd. 284,280 4,346 15,021
KEPCO Shanxi International Ltd. 707,447 329,539 (3,875 )
KOMIPO Global Pte Ltd. 411,249 32,900 17,174
KEPCO Netherlands B.V. 141,088 45 3,856
KEPCO Australia Pty., Ltd. 749 34 131
KOSEP Australia Pty., Ltd. 79,308 7,990 29,675 10,665
KOMIPO Australia Pty., Ltd. 86,077 4,014 29,676 9,248
KOWEPO Australia Pty., Ltd. 86,074 3,571 29,675 9,001
KOSPO Australia Pty., Ltd. 32,828 3,923 29,675 10,329
KEPCO Middle East Holding Company 121,015 107,611 (1,548 )
Qatrana Electric Power Company 491,627 208,707 26,779 20,949
KHNP Canada Energy Ltd. 155,242 12,379 392
KEPCO Bylong Australia Pty., Ltd. 44,557 465,231 (16,669 )
Korea Waterbury Uranium Limited Partnership 20,772 44 (67 )
KEPCO Holdings de Mexico 1,171 2,621 (121 )
KST Electric Power Company, S.A.P.I. de C.V. 631,348 490,470 93,843 19,657
KEPCO Energy Service Company 2,028 716 10,193 251
KEPCO Netherlands S3 B.V. 70,613 16,710 1,769
PT. KOMIPO Pembangkitan Jawa Bali 17,303 3,929 23,639 1,579
PT. Cirebon Power Service 2,936 714 9,457 672
KOWEPO International Corporation 10
KOSPO Jordan LLC 19,387 3,881 17,665 7,082
EWP America Inc. (*1) 46,954 4,032 14,549 895
KNF Canada Energy Limited 2,261 34 (56 )
EWP Barbados 1 SRL 434,690 14,217 2,448 36,566
Gyeonggi Green Energy Co., Ltd. 180,176 214,822 80,630 (28,549 )
PT. Tanggamus Electric Power 214,892 150,483 2,127 (2,230 )
Gyeongju Wind Power Co., Ltd. 90,616 49,982 19,807 6,716
KOMIPO America Inc. (*2) 579,403 318,295 39,323 3,376
PT. EWP Indonesia 90,650 132 9,590
KEPCO Netherlands J3 B.V. 153,324 13,634 15,289
Korea Offshore Wind Power Co., Ltd. 334,444 143,827 40,313 6,497
Global One Pioneer B.V. 143 44 (85 )
Global Energy Pioneer B.V. 336 44 (81 )
Mira Power Limited 403,843 318,557 2,683 (1,590 )
KOSEP Material Co., Ltd. 4,974 542 4,834 908
Commerce and Industry Energy Co., Ltd. 73,671 29,611 33,050 (2,901 )
KEPCO KPS Philippines Corp. 5,775 884 4,608 97
KOSPO Chile SpA 166,643 75,619

85

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(3) The summarized financial information of consolidated subsidiaries as of and for each of the two years in theperiod ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Subsidiaries Totalassets Total<br>liabilities Sales Profit (loss)<br>for the year
PT. KOWEPO Sumsel Operation And Maintenance Services ~~W~~ 26 260
Hee Mang Sunlight Power Co., Ltd. 5,877 2,403 689 202
Fujeij Wind Power Company 216,082 158,081 15,067
KOSPO Youngnam Power Co., Ltd. 360,026 255,761 410,173 (7,965 )
Chitose Solar Power Plant LLC 98,911 84,228 14,447 2,059
KEPCO ES Co., Ltd. 322,529 15,367 14,151 5,384
KEPCO Solar Co., Ltd. 246,273 36,127 23,234 8,367
KOSPO Power Services Ltda. 6,976 7,086 17,634 (211 )
Energy New Industry Specialized Investment Private Investment Trust (*3) 454,888 3,364 24,030 10,812
KOEN Bylong Pty., Ltd. 11 128
KOMIPO Bylong Pty., Ltd. 13 147 (20 )
KOWEPO Bylong Pty., Ltd. 12 142 (43 )
KOSPO Bylong Pty., Ltd. 388 541 (20 )
EWP Bylong Pty., Ltd. 13 13 46
KOWEPO Lao International 13,038 223 10,270 6,268
KEPCO Mangilao Holdings LLC 90,445 41,898 775 785
Mangilao Investment LLC 206,714 15 (1 )
KEPCO Mangilao Solar, LLC 206,600 1,918 13,593 826
Jeju Hanlim Offshore Wind Co., Ltd. 459,229 388,171 (3,032 )
PT. Siborpa Eco Power 12,209 3 (52 )
PT. Korea Energy Indonesia 1,878 101 1,897 132
KOLAT SpA 46,958 352 2,237 1,820
KEPCO California, LLC 46,606 6,823 613 (385 )
KEPCO Mojave Holdings, LLC 93,233 78,328 (3,901 )
Incheon Fuel Cell Co., Ltd. 259,169 237,409 96,924 (4,112 )
KOEN Service Co., Ltd. 11,470 8,745 38,164 305
KOMIPO Service Co., Ltd. 7,944 4,777 37,525 960
KOWEPO Service Co., Ltd. 10,300 6,584 36,421 264
KOSPO Service Co., Ltd. 6,122 4,182 30,369 703
EWP Service Co., Ltd. 5,487 3,790 26,767 176
PT. KOMIPO Energy Indonesia 2,983 250 2,023 38
KNF partners Co., Ltd. 2,589 1,106 6,380 340
KOSPO USA Inc. 378,732 377 (6,351 )
KOSPO Niles LLC (formerly, Nambu USA LLC) 297,370 230 (732 )
Tamra Offshore Wind Power Co., Ltd. 120,460 83,161 18,570 1,089
KEPCO MCS Co., Ltd. 111,189 73,940 307,146 (4,757 )
KEPCO FMS Co., Ltd. 21,310 18,142 107,336 1,895
Firstkeepers Co., Ltd. 18,698 12,437 90,575 2,689
Secutec Co., Ltd. 16,038 11,797 72,284 699
SE Green Energy Co., Ltd. 147,251 114,737 40,326 (1,305 )
Mangilao Intermediate Holdings LLC 206,771 114,954 (5,293 )
KEPCO CSC Co., Ltd. 15,985 12,170 49,502 2,644
KOAK Power Limited 15,000 528 714
KOMIPO Europe B.V. 86,109 69 1,183 109
Haenanum Energy Fund 7,415 3 47 (1 )
Paju Ecoenergy Co., Ltd. 60,653 2,146 15,351 (357 )
Guam Ukudu Power LLC 749,837 720,795 (19,904 )
K-SOLAR SHINAN Co., Ltd. 298,866 281,676 37,137 (6,896 )

86

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(3) The summarized financial information of consolidated subsidiaries as of and for each of the two years in theperiod ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Subsidiaries Totalassets Total<br>liabilities Sales Profit (loss)<br>for the year
KPS Partners Co., Ltd. ~~W~~ 3,503 1,776 12,921 183
KEPCO E&C Service Co., Ltd. 7,167 1,938 16,454 1,505
Moha solar Co., Ltd. 27,213 29,363 112
Ogiri Solar Power Co., Ltd. 1,032 31 (9 )
KHNP USA LLC 1,517 140 1,142 166
KOMIPO Vanphong Power Service LLC 26,819 3,768 21,396 10,879
Energy Innovation Fund I 43,725 419 (766 )
KHNP Chile SpA 5,555 4,219 (66 )
Yeong Yang Apollon Photovoltaic Co., Ltd. 1,529 1,427 219 42
Yeong Yang Corporation Co., Ltd. 1,519 1,418 216 39
SolarVader Co., Ltd. 1,529 1,421 219 40
Yeong Yang Innovation Co., Ltd. 1,510 1,418 210 32
Yeong Yang Horus Photovoltaic Co., Ltd. 1,502 1,418 206 28
Yeong Yang Solar Management Co., Ltd. 1,540 1,420 224 46
LSG Hydro Power Limited 717 8 (219 )
KOEN Bio Co., Ltd. 1,010 585 2,467 372
KOMIPO Iberian Solar Group, S.L.U. 79,666 66,874 (931 )
Jeongam Wind Power Co., Ltd. 75,744 63,219 8,154 (958 )
KOWEPO Europe B.V. 107 3,177 (44,685 )
Yeongdeok Sunrise Wind Power Co., Ltd. 94,615 74,842 (383 )
KA Power Limited 3,173 172 126
Western Power Changgi Solar Co., Ltd. 46,950 40,815 7,036 2,011
EWP Australia Pty., Ltd. 52,734 325 337
Columboola Solar Farm Hold Co Pty., Ltd. (*4) 311,259 213,822 10,072 3,217
Digital Innovation Growth Fund 11,624 96 (266 )
J Wind First, LLC 52,304 52,304 2,540
KEPCO Holding Company 3,307 (23 )
KEPCO for Maintenance Company 118 (45 )
KOSPO Trumbull LLC 25 (10 )
Changjuk Wind Power Co., Ltd. 24,364 3,049 6,230 744
Chile Solar JV SpA 98,705 75,472 9,050 (2,768 )
KEPCO KPS South Africa Pty., Ltd. 9,222 4,236 8,512 834
KOWEPO Holding Limited 1,323 1,371 (49 )
(*1) Financial information of EWP America Inc. includes that of 4 other subsidiaries, EWP Renewable Corporation,<br>California Power Holdings LLC, EWP ESS Holdings, LLC, and Fairhaven ESS LLC.
--- ---
(*2) Financial information of KOMIPO America Inc. includes that of 17 other subsidiaries including Elara Equity<br>Holdings, LLC and CVS Equity Holdings, LLC.
--- ---
(*3) Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of 6<br>other subsidiaries, BSK E-New Industry Fund VII, e-New Industry LB Fund 1, Songhyun e-New Industry Fund, BSK E-New Industry Fund X, UI Carbon-Neutrality Fund, and Magna Energy New Industrial Fund.
--- ---
(*4) Financial information of Columboola Solar Farm Hold Co Pty., Ltd. includes that of 3 other subsidiaries<br>including Columboola Solar Farm Nominees Pty., Ltd.
--- ---

87

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(4) Significant restrictions on the Group’s abilities to its subsidiaries as of December 31, 2024 areas follows:
--- ---
Company Nature and extent of any significantrestrictions
--- ---
Gyeonggi Green Energy Co., Ltd. Acquisition or disposal of assets of more than ~~W~~10 billion, change in the capacity of cogeneration units (except for the change due to performance improvement of equipment, maintenance) will require unanimous<br>consent of all directors of the entity.
KOSPO Youngnam Power Co., Ltd. Dividends may be payable only when all conditions of the loan agreement are satisfied. The Group’s shares cannot be wholly or partially transferred without prior written consent of financial institutions.
Jeongam Wind Power Co., Ltd. Dividends may be payable only when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained. Also, payments to the contracting party may be restricted depending on the<br>financial management priority of the contract. The Group’s shares cannot be wholly or partially transferred without prior consent of other stakeholders including shareholders or financial institutions.
Incheon Fuel Cell Co., Ltd. Acquisition or disposal of assets of more than ~~W~~20 billion, change in the capacity of cogeneration units (except for the change due to performance improvement of equipment, maintenance) will require unanimous<br>consent of all directors of the entity.
Gyeongju Wind Power Co., Ltd. Dividends and settlement amounts for O&M and renewable energy certificate may be payable only when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained.
Korea Offshore Wind Power Co., Ltd. Principals and interest on subordinated loans or dividends and settlement amounts for renewable energy certificate may be payable only when all conditions of the loan agreement are satisfied and prior written consent of financial<br>institutions is obtained. The Group’s equity interest in the subsidiary may not be transferred either wholly or partially without prior written consent of financial institutions.
Jeju Hanlim Offshore Wind Co., Ltd. Prior approval from the lender is required when withdrawing funds (major expenditure, REC settlement, dividend payment, etc.) according to the loan agreement.
Yeongdeok Sunrise Wind Power Co., Ltd. Dividends may be payable only when all conditions of the loan agreement are satisfied.
Columboola Solar Farm Hold Co Pty., Ltd. Dividends may be payable only when all conditions of the loan agreement are satisfied.
Guam Ukudu Power LLC Dividends may be payable only when all conditions of the loan agreement are satisfied. Disposing or transferring assets either as a whole or as a part is restricted, and the Group’s equity interest in the subsidiary may not<br>be transferred either wholly or partially without prior consent of other stakeholders including financial institutions.
Mira Power Limited The Group’s equity interest may not be transferred either wholly or partially without prior consent of other stakeholders.
Chile Solar JV SpA The Group’s equity interest may not be transferred either wholly or partially without prior consent of other stakeholders.
K-SOLAR SHINAN Co., Ltd. Dividends may be payable only when all conditions of the loan agreement are satisfied. The Group’s equity interest may not be transferred either wholly or partially without prior consent of other stakeholders until five<br>years have elapsed after the commencement of the operation.
Western Power Changgi Solar Co., Ltd. Principals and interest on subordinated loans or dividends to investors are only payable when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained. Also, the<br>Group’s equity interest may not be transferred either wholly or partially without prior written consent of financial institutions.

88

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(4) Significant restrictions on the Group’s abilities to its subsidiaries as of December 31, 2024 areas follows, continued:
--- ---
Company Nature and extent of any significantrestrictions
--- ---
Chitose Solar Power Plant LLC Capital expenditure may be incurred only upon prior consent of financial institutions. The issuance of securities to third parties, including current investors, is restricted, and the amount of paid-in capital cannot either<br>increase, be written off or decrease.
Mangilao Intermediate Holdings LLC Changes or termination of the O&M contract, and delays in the EPC contract may not be made without the prior written consent of the majority of the lenders, and dividends can be implemented only after repayment of the loan is<br>completed.
Fujeij Wind Power Company Incurring additional borrowings not specified in the loan agreement, or changing the PPA schedule or the EPC contract without the lender’s prior written consent is restricted. Also, commercial operation before acquiring wind<br>turbine is restricted without prior consent from the EPC contractor. In addition, capital acquisition and new share issuance other than dividends payment to investors are restricted.
Qatrana Electric Power Company Dividends payment, repayment of capital investment, and settlement for O&M can only be made when all conditions of the loan agreement are satisfied and prior consent of financial institutions is obtained.
KST Electric Power Company, S.A.P.I.<br><br><br>de C.V. Disposal of assets exceeding $5 million per year is restricted, and the debt ratio is required to be maintained below 90%. Additionally, capital and cost expenditures that do not meet the conditions in the loan agreement are<br>restricted.
(5) As of December 31, 2024, the Group has following commitments unrecognized in relation to itssubsidiaries as per its shareholders’ agreements:
--- ---
Company Unrecognized commitments
--- ---
Jeongam Wind Power Co., Ltd. When the Group requests other shareholders to transfer shares after the completion of the power generation complex, the Group has a right to purchase the shares at fair value.
Changjuk Wind Power Co., Ltd. When other shareholders want to sell their shares after the performance guarantee period of wind power generators stipulated in the equipment supply contract is completed, the Group has a right to purchase the shares at fair<br>value after consulting with the parties on the timing and size of the acquisition, taking into account financial conditions, business conditions, and other circumstances.
Columboola Solar Farm Hold Co Pty., Ltd. The Group holds a call option to purchase the shares held by another shareholder at 80% of the stock’s valuation in the event of a breach of obligation specified in the shareholder agreement.

89

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(6) Details of non-controlling interests prior to intra-Company eliminations as of and for each of the two yearsin the period ended December 31, 2024 are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of and for the year ended2024
Description KEPCO IlijanCorporation KEPCO PlantService &EngineeringCo., Ltd. KEPCOEngineering &<br>ConstructionCompany, Inc. Others Total
Percentage of ownership 49.00 % 49.00 % 48.76 %
Current assets ~~W~~ 58,291 1,033,936 568,226 1,284,969 2,945,422
Non-current assets 461 641,840 377,158 4,814,101 5,833,560
Current liabilities (280 ) (341,918 ) (359,629 ) (1,282,746 ) (1,984,573 )
Non-current liabilities (335 ) (13,561 ) (8,281 ) (2,578,521 ) (2,600,698 )
Net assets 58,137 1,320,297 577,474 2,237,803 4,193,711
Book value of non-controlling interests 28,487 646,946 281,576 490,588 1,447,597
Sales 1,534,269 553,363 1,032,246 3,119,878
Profit for the period 4,549 170,967 58,513 120,682 354,711
Profit for the period attributable to non-controlling interests 2,229 83,774 28,531 15,736 130,270
Cash flows from operating activities 5,034 538,151 46,528 345,168 934,881
Cash flows from investing activities (379,243 ) (31,761 ) (195,587 ) (606,591 )
Cash flows from financing activities<br><br><br>before dividends to non-controlling interests (64,696 ) (63,535 ) (11,104 ) (161,447 ) (300,782 )
Dividends to non-controlling interests (36,759 ) (47,584 ) (9,552 ) (43,321 ) (137,216 )
Effect of exchange rate fluctuation 12,321 1,362 447 28,762 42,892
Net increase (decrease) in cash and cash equivalents (84,100 ) 49,151 (5,442 ) (26,425 ) (66,816 )
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of and for the year ended2023
Description KEPCO IlijanCorporation KEPCO PlantService &EngineeringCo., Ltd. KEPCOEngineering &<br>ConstructionCompany, Inc. Others Total
Percentage of ownership 49.00 % 49.00 % 48.76 %
Current assets ~~W~~ 142,023 953,211 446,900 1,193,078 2,735,212
Non-current assets 688 632,169 407,804 4,639,760 5,680,421
Current liabilities (252 ) (313,249 ) (249,899 ) (1,009,791 ) (1,573,191 )
Non-current liabilities (548 ) (5,348 ) (57,497 ) (2,737,589 ) (2,800,982 )
Net assets 141,911 1,266,783 547,308 2,085,458 4,041,460
Book value of non-controlling interests 69,536 620,723 266,867 462,581 1,419,707
Sales 1,523,031 545,092 1,212,372 3,280,495
Profit for the period 3,718 161,849 32,654 63,145 261,366
Profit for the period attributable to non-controlling interests 1,822 79,306 15,922 9,355 106,405
Cash flows from operating activities 1,086 (35,492 ) 39,985 368,415 373,994
Cash flows from investing activities 84 26,915 (19,345 ) (508,844 ) (501,190 )
Cash flows from financing activities before dividends to non-controlling interests (93,348 ) (36,433 ) (6,687 ) 119,109 (17,359 )
Dividends to non-controlling interests (643 ) (28,775 ) (5,250 ) (20,866 ) (55,534 )
Effect of exchange rate fluctuation 5,135 (454 ) (35 ) 2,813 7,459
Net increase (decrease) in cash and cash equivalents (87,686 ) (74,239 ) 8,668 (39,373 ) (192,630 )

90

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

16. Consolidated Subsidiaries, Continued
(7) Changes in goodwill
--- ---

(i) Details of goodwill as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Acquisition cost ~~W~~ 101,761 101,738
Less: accumulated impairment (2,582 ) (2,582 )
Carrying book value ~~W~~ 99,179 99,156

(ii) Changes in goodwill for each of the two years in the period ended December 31, 2024 are as follows:

In millions of won For the year ended December 31, 2024
Beginning Increase Decrease Impairment Others Ending
Acquisition cost ~~W~~ 101,738 23 101,761
Less: accumulated impairment (2,582 ) (2,582 )
Carrying book value ~~W~~ 99,156 23 99,179
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Increase Decrease Impairment Others Ending
Acquisition cost ~~W~~ 100,093 1,859 (214 ) 101,738
Less: accumulated impairment (2,582 ) (2,582 )
Carrying book value ~~W~~ 100,093 1,859 (2,582 ) (214 ) 99,156
(8) Disposals of subsidiaries
--- ---

The Group has completed the liquidation process of PT. KOWEPO Sumsel Operation and Maintenance Services and KEPCO Lebanon SARL for the year ended December 31, 2024. In addition, the Group has completed the liquidation process of its subsidiaries KHNP Spain, S.L. and KEPCO US Inc. for the year ended December 31, 2023.

91

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Associates>
Korea Gas Corporation (*9) Importing and wholesaling LNG Korea 20.47% ~~W~~ 94,500 2,289,304
Korea Electric Power Industrial Development Co., Ltd. Electricity metering and others Korea 29.00% 4,727 30,177
Gangwon Wind Power Co., Ltd. (*1) Power generation Korea 15.00% 5,725 11,693
Hyundai Green Power Co., Ltd. Power generation equipment consignment and operation service Korea 29.00% 88,885 87,393
Korea Power Exchange (*2) Management of power market and others Korea 100.00% 127,839 273,962
Taebaek Guinemi Wind Power Co., Ltd. (*26) Power generation Korea 67.25% 12,637 13,559
Daeryun Power Co., Ltd. (*1) Power generation Korea 6.85% 46,373 31,093
KNH Solar Co., Ltd. Power generation Korea 27.00% 1,296 2,165
SPC Power Corporation (*27) Power generation Philippines 38.00% 20,635 107,574
Gemeng International Energy Co., Ltd. Power generation China 42.00% 516,007 728,338
PT. Cirebon Electric Power Power generation Indonesia 27.50% 40,365 157,530
KNOC Nigerian East Oil Co., Ltd. (*3) Resources development Nigeria 14.63% 12
KNOC Nigerian West Oil Co., Ltd. (*3) Resources development Nigeria 14.63% 12
PT Wampu Electric Power Power generation Indonesia 46.00% 21,292 39,268
PT. Bayan Resources TBK Resources development Indonesia 20.00% 615,860 717,376
S-Power Co., Ltd. Power generation Korea 49.00% 132,300 180,372
Xe-Pian Xe-Namnoy Power Co., Ltd. Power generation Laos 25.00% 87,426 73,065
PT. Mutiara Jawa Manufacturing and operating floating coal terminal Indonesia 29.00% 2,978 5,735
Noeul Green Energy Co., Ltd. Power generation Korea 29.00% 1,740
Goseong Green Power Co., Ltd. Power generation Korea 29.00% 262,740 284,542
Gangneung Eco Power Co., Ltd. Power generation Korea 29.00% 261,000 241,814
Shin Pyeongtaek Power Co., Ltd. Power generation Korea 40.00% 72,000 139,059
Haeng Bok Do Si Photovoltaic Power Co., Ltd. Power generation Korea 28.00% 194 360
Dongducheon Dream Power Co., Ltd. (*4) Power generation Korea 33.61% 148,105 91,351
Jinbhuvish Power Generation Pvt. Ltd. (*1) Power generation India 5.16% 9,000
Daejung Offshore Wind Power Co., Ltd. Power generation Korea 46.59% 5,190 1,490
GS Donghae Electric Power Co., Ltd. Power generation Korea 34.00% 204,000 279,432
Daegu Photovoltaic Co., Ltd. Power generation Korea 29.00% 1,230 2,535
Busan Green Energy Co., Ltd. Power generation Korea 29.00% 5,243 2,334
Hansuwon KNP Co., Ltd. Electric material agency Korea 28.98% 537 674
Korea Electric Power Corporation Fund (*5) Developing electric enterprises Korea 98.09% 11,210 13,353
Energy Infra Asset Management Co., Ltd. (*31) Asset management Korea 9.90% 297 1,268
YaksuESS Co., Ltd. Installing ESS related equipment Korea 29.00% 210 162
Nepal Water & Energy Development Company Private Limited (*6) Construction and operation of utility plant Nepal 68.88% 110,332 170,955
Gwangyang Green Energy Co., Ltd. Power generation Korea 20.00% 26,800 24,217
PND solar Co., Ltd. Power generation Korea 29.00% 1,250 1,735
Hyundai Eco Energy Co., Ltd. (*1) Power generation Korea 19.00% 3,610 8,493
YeongGwang Yaksu Wind Electric Co., Ltd. (*1) Power generation Korea 9.63% 533 41
Green Energy Electricity Generation Co., Ltd. Power generation Korea 29.00% 1,189
Korea Energy Solutions Co., Ltd. R & D Korea 20.00% 300 197
ITR Co., Ltd. (*30) R & D Korea 8.70% 50
STN Co., Ltd. Technical testing and consulting Korea 20.00% 25 407

92

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Associates>
Indeck Niles Development, LLC Power generation USA 50.00% ~~W~~ 249,274 370,970
Indeck Niles Asset Management, LLC Power generation USA 33.33% 60
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 Holding company Korea 49.00% 6,108 6,119
Suwon New Power Co., Ltd. Power generation Korea 39.90% 798 914
Gwangbaek Solar Power Investment Co., Ltd. Power generation Korea 44.00% 4,757 5,155
Go deok Clean Energy Co., Ltd. Fuel cell generation Korea 40.00% 5,560 5,301
SureDataLab Co., Ltd. R & D Korea 23.95% 126 48
SEP Co., Ltd. R & D Korea 21.26% 27
Hankook Electric Power Information Co., Ltd. (*11) R & D Korea 16.16% 38 212
Tronix Co., Ltd. (*11) R & D Korea 12.50% 75 146
O2&B Global Co., Ltd. R & D Korea 20.00% 25
Muan Sunshine Solar Power Plant Co., Ltd. Power generation Korea 20.00% 1,570 2,772
Bigeum Resident Photovoltaic Power Co., Ltd. (*29) Power generation Korea 27.31% 11,214 7,908
Goesan Solar Park Co., Ltd. Power generation Korea 29.00% 1,276 3,133
Saemangeum Heemang Photovoltaic Co., Ltd. Power generation Korea 35.00% 11,022 16,137
Bitgoel Eco Energy Co., Ltd. Power generation Korea 49.25% 7,880 13,701
Jeju Gimnyeong Wind Power Co., Ltd. Power generation Korea 30.00% 714 250
Seoroseoro Sunny Power Plant Co., Ltd. Power generation Korea 42.58% 706 1,030
Muan Solar park Co., Ltd. Power generation Korea 20.00% 4,400 6,267
YuDang Solar Co., Ltd. Power generation Korea 20.00% 360 617
Anjwa Smart Farm & Solar City Co., Ltd. Power generation Korea 20.00% 5,651 8,298
KPE Green Energy Co., Ltd. Power generation Korea 25.36% 3,910 8,230
G.GURU Co., Ltd. R & D Korea 24.65% 493 34
UD4M Co., Ltd. (*8) R & D Korea 12.50% 75 121
Dongbu Highway Solar Co., Ltd. Power generation Korea 20.00% 190 512
Seobu Highway Solar Co., Ltd. Power generation Korea 20.00% 195 579
Korea Energy Data Co., Ltd. R & D Korea 29.37% 60 23
Gangneung Sacheon Fuel Cell Co., Ltd. Power generation Korea 41.00% 5,695 9,306
Taebaek Gadeoksan Wind Power Co., Ltd. Power generation Korea 34.00% 12,570 22,909
Chuncheon Green Energy Co., Ltd. Power generation Korea 45.00% 9,540 17,672
Yeomsubong Wind Power Co., Ltd. Power generation Korea 29.00% 1,411 603
Yeongyang Wind Power Corporation II Power generation Korea 30.00% 7,965 11,301
Haeparang Energy Co., Ltd. Power generation Korea 25.00% 2,241 1,950
Saemangeum Sebit Power Plant Co., Ltd. (*10) Power generation Korea 55.14% 21,037 37,110
PlatformN. Co., Ltd. R & D Korea 29.58% 105
PT. Cirebon Energi Prasarana (*7) Power generation Indonesia 10.00% 26,710 96,846
Green Radiation Co., Ltd. (*11) R & D Korea 9.00% 20
Future Convergence Technology Laboratory. Co., Ltd. R & D Korea 20.12% 76 22
Eco Motion Co., Ltd. R & D Korea 20.00% 90 229
REC’s Innovation Co., Ltd. (*31) R & D Korea 11.04% 81 155
ACE R & D Korea 20.00% 25 5
Environment and Energy Co., Ltd. (*11) R & D Korea 10.54% 11 3
Santiago Solar Power SpA Power generation Chile 50.00% 13,851 6,961
Yanggu Floating Photovoltaic Power Plant Inc. Power generation Korea 29.00% 904 846
Power Embedded R & D Korea 23.33% 70 68
Changwon SG Energy Co., Ltd. (*11) Power generation Korea 18.78% 900 682
Donpyung Technology. Co., Ltd. R & D Korea 20.00% 125 281
HORANG ENERGY Inc. Power generation Korea 40.00% 4,240 3,808
Hoenggye Renewable Energy Co., Ltd Power generation Korea 36.12% 2,375 2,375
Haman Green Energy Co., Ltd. Power generation Korea 35.00% 4,771 2,810
Songsan Green Energy Co., Ltd. (*6) Power generation Korea 60.00% 8,400 7,908
SkyPic Inc. R & D Korea 20.00% 26 26
HyChangwon Fuel Cell. Co., Ltd. Power generation Korea 40.00% 9,396 9,278
Dreams Co.,Ltd. (*11) R & D Korea 11.00% 11 11
DEEPAI Co.,Ltd. (*11, 36) R & D Korea 1.20% 11 11
Amaala Sustainable Company for Energy LLC (*7) Power generation Saudi Arabia 10.00% 18 18
~~W~~ 3,394,833 6,704,754

93

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Joint ventures>
Shuweihat Asia Power Investment B.V. Holding company Netherlands 49.00% ~~W~~ 44,405 86,450
Shuweihat Asia Operation & Maintenance Company (*12) Maintenance of utility plant Cayman 55.00% 30 2,138
Waterbury Lake Uranium L.P. (*13) Resources development Canada 29.68% 20,753 23,756
ASM-BG Investicii AD Power generation Bulgaria 50.00% 9,846 16,936
RES Technology AD Power generation Bulgaria 50.00% 11,922 15,069
KV Holdings, Inc. (*27) Power generation Philippines 40.00% 2,103 6,921
KEPCO SPC Power Corporation (*12,27) Construction and operation of utility plant Philippines 60.00% 94,579 159,139
Gansu Datang Yumen Wind Power Co., Ltd. Power generation China 40.00% 16,621 7,919
Datang Chifeng Renewable Power Co., Ltd. Power generation China 40.00% 121,928 204,516
Datang KEPCO Chaoyang Renewable Power Co., Ltd. Power generation China 40.00% 39,872 48,325
Rabigh Electricity Company(*13) Power generation Saudi arabia 40.00% 109,743 269,893
Rabigh Operation & Maintenance Company Limited Maintenance of utility plant Saudi arabia 40.00% 70 8,311
Jamaica Public Service Company Limited Power generation Jamaica 40.00% 301,910 412,616
KW Nuclear Components Co., Ltd. Manufacturing Korea 45.00% 833 18,758
Busan Shinho Solar Power Co., Ltd. Power generation Korea 25.00% 2,100 6,993
Global Trade Of Power System Co., Ltd. (*14) Exporting products and technology of small or medium business by proxy Korea 29.00% 290 696
Expressway Solar-light Power Generation Co., Ltd. Power generation Korea 50.00% 1,856 5,771
Amman Asia Electric Power Company (*12) Power generation Jordan 60.00% 111,476 268,864
KAPES, Inc. (*12) R & D Korea 51.00% 5,629
Honam Wind Power Co., Ltd. Power generation Korea 29.00% 3,480 4,833
Korea Power Engineering Service Co., Ltd. Construction and service Korea 29.00% 290 6,054
Chun-cheon Energy Co., Ltd. Power generation Korea 29.90% 52,700 36,599
Yeonggwangbaeksu Wind Power Co., Ltd. (*14) Power generation Korea 15.00% 3,000 3,729
Nghi Son 2 Power LLC Power generation Vietnam 50.00% 175,261 563,079
Kelar S.A. (*12) Power generation Chile 65.00% 78,060 152,367
PT. Tanjung Power Indonesia Power generation Indonesia 35.00% 57,039 100,580
Incheon New Power Co., Ltd. (*16) Power generation Korea 29.00% 461 302
Seokmun Energy Co., Ltd. Power generation Korea 29.00% 15,370 15,456
Daehan Wind Power PSC Power generation Jordan 50.00% 7,493 21,327
Barakah One Company (*17) Power generation UAE 18.00% 118
Nawah Energy Company (*17) Operation of utility plant UAE 18.00% 296 392
MOMENTUM International thermonuclear<br> <br>experimental<br>reactor construction<br> <br>management France 33.33% 1 195
Daegu Green Power Co., Ltd. (*18) Power generation Korea 29.00% 46,225 30,513
Yeonggwang Wind Power Co., Ltd. Power generation Korea 46.00% 17,475 26,146
Chester Solar IV SpA (*15) Power generation Chile 90.00% 2,776 1,452
Chester Solar V SpA (*15) Power generation Chile 90.00% 634 262
Diego de Almagro Solar SpA (*15) Power generation Chile 90.00% 2,902 1,700
South Jamaica Power Company Limited Power generation Jamaica 20.00% 20,430 48,760
Daesan Green Energy Co., Ltd. Power generation Korea 35.00% 17,850 25,331
RE Holiday Holdings LLC Power generation USA 50.00% 42,948 89,780
RE Pioneer Holdings LLC Power generation USA 50.00% 27,891 55,622
RE Barren Ridge 1 Holdings LLC Power generation USA 50.00% 28,021 59,806
RE Astoria 2 LandCo LLC Power generation USA 50.00% 5,188 8,119
RE Barren Ridge LandCo LLC Power generation USA 50.00% 2,187 2,857
Laurel SpA (*15) Power generation Chile 90.00% 2,156 1,432
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd (*14) Power generation Australia 12.37% 4,095 1,149
Cheong-Song Noraesan Wind Power Co., Ltd. (*13) Power generation Korea 29.01% 3,200 4,317
Chester Solar I SpA (*15) Power generation Chile 90.00% 1,316 1,649
Solar Philippines Calatagan Corporation Power generation Philippines 38.00% 47,903 63,695
Saemangeum Solar Power Co., Ltd. (*19) Power generation Korea 81.01% 26,400 23,277
Chungsongmeon BongSan wind power Co., Ltd. (*14) Power generation Korea 29.00% 2,900 2,590
Jaeun Resident Wind Power Plant Co., Ltd. (*14) Power generation Korea 29.00% 2,494 2,045
DE Energia SpA Power generation Chile 49.00% 8,364 11,062
Dangjin Eco Power Co., Ltd. Power generation Korea 34.00% 25,661 26,867

94

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Joint ventures>
Haemodum Solar Co., Ltd. Power generation Korea 49.00% ~~W~~ 2,940 3,230
Yangyang Wind Power Co., Ltd. Power generation Korea 50.00% 12,000 11,640
HORUS SOLAR, S.A. DE C.V. (*20) Renewable power generation Mexico 14.95% 5,068 1,488
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. (*20) Renewable power generation Mexico 14.95% 3,678 4,452
SUNMEX RENOVABLES, S.A. DE C.V. (*20) Renewable power generation Mexico 14.95% 1,678 1,687
Stavro Holding II A.B. Holding company Sweden 20.00% 18,566 16,459
Solaseado Solar Power Co., Ltd. Power generation Korea 39.00% 7,020 22,793
Yeongam Solar Power Co., Ltd. (*14) Power generation Korea 19.00% 6,460 11,828
Samsu Wind Power Co., Ltd. (*14) Power generation Korea 19.00% 2,637 2,851
Pulau Indah Power Plant Sdn. Bhd. Power generation Malaysia 25.00% 39,052 50,721
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 Holding company Korea 29.53% 20,857 15,433
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream (*12) Holding company Korea 90.00% 14,848 15,496
PT Barito Wahana Tenaga Power generation Indonesia 30.61% 59,574 207,565
Cheongna Energy Co., Ltd. (*19) Generating and distributing vapor and hot/cold water Korea 50.10% 49,344 46,158
Naepo Green Energy Co., Ltd. Power generation Korea 29.20% 29,200 48,031
Boim Combined Heat and Power Generation Co., Ltd. (*21) Power generation Korea 30.66% 71,070
OneEnergy Asia Limited Power generation Vietnam 40.00% 258,011 465,349
KAS INVESTMENT I LLC (*13) Holding company USA 29.89% 23,437 6,078
KAS INVESTMENT II LLC (*13) Holding company USA 29.89% 23,343 6,040
Energyco Co., Ltd. Power generation Korea 29.00% 1,659 2,322
CAES, LLC Holding company USA 36.00% 19,414 20,659
Hapcheon Floating Photovoltaic Power Plant Inc. (*14) Power generation Korea 49.00% 7,512 11,334
Busan Industrial Solar Power Co., Ltd. Power generation Korea 28.02% 510 1,160
Bitsolar Energy Co., Ltd. Power generation Korea 27.10% 352
Pulau Indah O&M Sdn. Bhd. (*14) Power generation Malaysia 40.00%
Guadalupe Solar SpA (*22) Power generation Chile 60.00% 1,397 781
Omisan Wind Power Co., Ltd. Power generation Korea 42.00% 10,752 10,859
Foresight Iberian Solar Group Holding, S.L. (*22) Power generation Spain 75.00% 10,564
Yeongwol Eco Wind Co., Ltd. Power generation Korea 29.00% 3,089 890
Gurae Resident Power Co., Ltd. Power generation Korea 29.00% 386 333
Cheongju Eco Park Co., Ltd. Power generation Korea 29.00% 5,858 10,636
Enel X Midland Photovoltaic, LLC Power generation Korea 20.00% 2,211 2,715
Geumsungsan Wind Power Co., Ltd. Power generation Korea 29.00% 6,531 7,840
KEPCO KPS CARABAO Corp. (*16) Utility plant maintenance Philippines 40.00% 93
Prime Swedish Holding AB Holding company Sweden 45.00% 35,410 37,559
Goheung New Energy Co., Ltd. Power generation Korea 46.15% 12,959 15,768
Gunsan Land Solar Co., Ltd. (*22,28) Power generation Korea 75.29% 19,091 23,163
CapMan Lynx SCA, SICAR Holding company Luxembourg 50.00% 9,601
International Offshore Power Transmission Holding Company Limited Undersea transmission network operation UAE 35.00% 11,038
Pyeongchang Wind Power Co., Ltd. (*25) Power generation Korea 58.00% 9,329 12,147
Eumseong Eco Park Co., Ltd. Power generation Korea 29.00% 5,741 11,613
Changwon Nu-ri Energy Co., Ltd. (*14) Fuel cell generation Korea 61.00% 8,095 7,658
PungBack Wind Farm Corporation (*24) Power generation Korea 32.89% 7,885 7,760
Trumbull Asset Management, LLC (*25) Holding company USA 78.00% 1 1,297
S-Power Chile SpA Power generation Chile 50.00% 127 159
Seungmun Green Energy Power generation Korea 33.00% 8,973 12,745
Seobusambo highway photovoltaics Co., Ltd. (*23) Power generation Korea 80.00% 3,020 3,309

95

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Joint ventures>
Yangyang Suri Wind Power Co., Ltd.(*13) Power generation Korea 29.00% ~~W~~ 10,498 8,643
KEPCO for Power Company (*32) Power generation Saudi arabia 60.00% 3,083 17,906
Taebaek Wind Power Co., Ltd. (*33) Power generation Korea 60.00% 11,494 14,759
Jeonju Bio Green Energy Co., Ltd.(*22) Power generation Korea 65.00% 3,250 2,566
Kumyang Eco Park Co., Ltd. Power generation Korea 29.00% 3,663 3,841
Jeongeup Green Power Co., Ltd. (*34) Power generation Korea 44.86% 9,600 8,846
Hadong E-factory Co., Ltd.(*13) Power generation Korea 29.99% 350 344
Namyangju Combined Heat and Power Co., Ltd. (*35) Generating and distributing vapor and hot/cold water Korea 70.10% 53,977 51,768
Samcheok Eco Materials Co., Ltd. (*37) Recycling fly ashes Korea 25.54% 686
Wadi Noor Solar Power Company SAOC Power generation Oman 50.00% 847 1,392
Fairhaven Energy Storage LLC Power generation USA 35.00% 1,505
Rutile BESS Holdings, LLC Holding company USA 50.00% 106 1
Trumbull Development Partners, LLC Holding company USA 56.23% 304,836 355,379
Imha Floating Photovoltaic Power Plant Inc.(*13) Power generation Korea 49.00% 7,174 6,351
EDFR KOWEPO AJBAN PV HOLDING LIMITED Holding company UAE 50.00% 1 85
Roof One Energy Co., Ltd. Holding company Korea 48.00% 2,000 2,000
2,880,964 4,581,340
~~W~~ 6,275,797 11,286,094
(*1) The effective percentage of ownership is less than 20%. However, the Group can exercise significant influence<br>by virtue of its contractual right to appoint directors to the board of directors of the entity, and by strict decision criteria of the Group’s financial and operating policy of the board of directors.
--- ---
(*2) The effective percentage of ownership is 100%. However, the Government regulates the Group’s ability to<br>make operating and financial decisions over the entity, as the Government requires maintaining arms-length transactions between KPX and the Group’s other subsidiaries. Accordingly, the entity is not classified as a consolidated subsidiary. The<br>Group can exercise significant influence by virtue of right to nominate directors to the board of directors of the entity.
--- ---
(*3) The effective percentage of ownership is less than 20%. However, the Group can exercise significant influence<br>by virtue of its contractual right to appoint one out of four members of the steering committee of the entity. Moreover, the Group has significant financial transactions, which can affect its significant influence on the entity.<br>
--- ---
(*4) The effective percentage of ownership is 34.01% considering the conversion of redeemable convertible preferred<br>stock into ordinary stock.
--- ---
(*5) The effective percentage of ownership is more than 50% but the Group does not hold control over relevant<br>business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.
--- ---
(*6) The effective percentage of ownership is more than 50% but the Group does not hold control over the entity<br>according to the shareholders’ agreement. Accordingly, the entity is classified as an associate.
--- ---
(*7) The effective percentage of ownership is less than 20%. However, the entity is classified as an associate<br>because the Group exercises significant influence over the decisions related to finance and operation.
--- ---
(*8) The effective percentage of ownership is 14.29% due to the acquisition of treasury stocks. The effective<br>percentage of ownership is less than 20%. However, the Group exercises significant influence over the decisions related to finance and operation by virtue of right to nominate directors to the board of directors of the entity.
--- ---
(*9) The effective percentage of ownership is 21.66%, considering hybrid bonds.
--- ---
(*10) The effective percentage of ownership is more than 50% but the Group does not hold control over relevant<br>business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.
--- ---
(*11) The effective percentage of ownership is less than 20%. However, the entity is classified as an associate<br>because the Group exercises significant influence over the entity.
--- ---
(*12) The effective percentage of ownership is more than 50%. However, according to the shareholders’ agreement,<br>all critical financial and operating decisions must be agreed to by all ownership parties and the Group can exercise same voting rights as other shareholders at the board of directors. Accordingly, the entities are classified as joint ventures.<br>
--- ---

96

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
(*13) The effective percentage of ownership is less than 50%. However, the entity is classified as a joint venture,<br>because all consent was required to make decisions on related activities.
--- ---
(*14) According to the shareholders’ agreement, the parties have joint control over all decisions related to<br>finance and operation. Accordingly, the entity is classified as joint ventures.
--- ---
(*15) Although the Group holds majority of shares in the entities marked above by acquiring additional shares for the<br>year ended December 31, 2024, the entities are classified as joint ventures due to the shareholders’ agreement requiring unanimous approval from the entities’ board of directors for making material decisions on financial and<br>operational policies.
--- ---
(*16) The joint arrangement which the Group has joint control is structured through a separate company. The parties<br>have joint control over the joint arrangement are classified as joint ventures, judging that they have rights to the net assets of the arrangement.
--- ---
(*17) The effective percentage of ownership is less than 50%. However, decisions in relevant activities must be<br>agreed by ownership parties. Accordingly, the entity is classified as joint ventures.
--- ---
(*18) Although the nominal percentage of ownership is 29%, the effective percentage of ownership is 54.24%,<br>considering the interest of financial investors as a liability component.
--- ---
(*19) The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be<br>agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
--- ---
(*20) The effective percentage of ownership is less than 50%. However, according to the shareholders’ agreement,<br>decisions related principal operation must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
--- ---
(*21) According to the Boim Combined Heat and Power Generation Co., Ltd. Investment Agreement signed in March 2011,<br>the Group has a commitment to guarantee principal and certain returns on shares of REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.). held by NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation.<br>Since NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation have put option regarding their share of the entity, the Group was deemed to have acquired an additional 15.6% stake. As a result, the effective percentage of<br>ownership is 46.3% in the current and prior period. In accordance with shareholders’ agreement signed during the current period, the Group has joint control with other investors in making important financial and operation decisions, so it has<br>been reclassified from an associate to a joint venture.
--- ---
(*22) The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be<br>agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
--- ---
(*23) Although the effective percentage of ownership is more than 50%, decisions in relevant activities must be<br>agreed by all members of the board of directors.
--- ---
(*24) The effective percentage of ownership is 37%, considering potential common stock.
--- ---
(*25) The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be<br>agreed by all members of the board of directors. Accordingly, the entity is classified as a joint venture.
--- ---
(*26) The effective percentage of ownership is more than 50%. However, by the shareholders’ agreement, the Group<br>does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision committee. Accordingly, the entity is classified as an associate.
--- ---
(*27) The Group is planning to sell its investment in SPC Power Corporation, KEPCO SPC Power Corporation, and KV<br>Holdings, Inc. and the timing of and proceeds from such sales transaction is not specified as of December 31, 2023.
--- ---
(*28) The nominal percentage of ownership is 75.29% and the effective percentage of ownership is 56.91%, as the Group<br>has an obligation to provide excessive dividend income to Gunsan City when a certain rate of return defined in the shareholders’ agreement is met.
--- ---
(*29) During the year ended December 31, 2024, the long-term loan to Bigeum Resident Photovoltaic Power Co.,<br>Ltd. was converted into equity.
--- ---

97

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
(*30) Although the Group’s effective percentage of ownership is less than 20%, the entity has been classified as<br>an associate as the Group has significant influence on the entity considering the fact that ordinary resolutions passed at the shareholders’ meeting require the majority decision and the Group has the right to elect the entity’s directors.<br>
--- ---
(*31) Although the Group’s effective percentage of ownership is less than 20%, the Group can exercise<br>significant influence on the entity through its contractual right to appoint one director to the entity’s board of directors.
--- ---
(*32) Although the Group’s effective percentage of ownership is more than 50%, the entity is classified as a<br>joint venture since the entity’s material financial and operational decisions require unanimous agreement of members in the board of directors due to the shareholders’ agreement.
--- ---
(*33) Although the Group’s effective percentage of ownership is more than 50%, the entity is classified as a<br>joint venture considering the minimum number of the entity’s board of directors’ members required to agree for making decision on material financial and operational policies due to the joint shareholders’ agreement.<br>
--- ---
(*34) Although the Group’s effective percentage of ownership is less than 50%, the entity is reclassified as a<br>joint venture considering the Group can exercise significant influence on the entity due to the Group’s contractual right to appoint a director to the entity’s board of directors and the minimum number of the entity’s board of<br>directors members required to agree for making decision on material financial and operational policies in accordance with the joint shareholders’ agreement .
--- ---
(*35) Although the Group’s effective percentage of ownership is more than 50%, the entity is classified as a<br>joint venture since the entity’s material financial and operational decisions require unanimous agreement of members in the board of directors.
--- ---
(*36) The effective ownership interest is 1.32%, considering convertible redeemable preferred shares.<br>
--- ---
(*37) Although the Group’s effective percentage of ownership is less than 50%, the entity is reclassified as a<br>joint venture considering the minimum number of the entity’s board of directors’ members required to agree for making decision on material financial and operational policies as the joint shareholders’ agreement revised in the year<br>ended December 31, 2024.
--- ---

98

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Associates>
Korea Gas Corporation Importing and wholesaling LNG Korea 20.47% ~~W~~ 94,500 1,970,643
Korea Electric Power Industrial Development Co., Ltd. Electricity metering and others Korea 29.00% 4,727 29,500
YTN Co., Ltd. (*1) Broadcasting Korea 21.43% 59,000 52,303
Gangwon Wind Power Co., Ltd. (*2) Power generation Korea 15.00% 5,725 12,001
Hyundai Green Power Co., Ltd. Power generation equipment consignment and operation service Korea 29.00% 88,885 118,173
Korea Power Exchange (*3) Management of power market and others Korea 100.00% 127,839 274,286
Taebaek Guinemi Wind Power Co., Ltd. (*28) Power generation Korea 67.25% 12,637 13,530
Daeryun Power Co., Ltd. (*2) Power generation Korea 6.85% 46,373 26,834
KNH Solar Co., Ltd. Power generation Korea 27.00% 1,296 3,194
SPC Power Corporation (*29) Power generation Philippines 38.00% 20,635 78,931
Gemeng International Energy Co., Ltd. Power generation China 42.00% 516,007 705,812
PT. Cirebon Electric Power Power generation Indonesia 27.50% 40,365 134,259
KNOC Nigerian East Oil Co., Ltd. (*4) Resources development Nigeria 14.63% 12
KNOC Nigerian West Oil Co., Ltd. (*4) Resources development Nigeria 14.63% 12
PT Wampu Electric Power Power generation Indonesia 46.00% 21,292 34,555
PT. Bayan Resources TBK Resources development Indonesia 20.00% 615,860 619,207
S-Power Co., Ltd. Power generation Korea 49.00% 132,300 162,765
Pioneer Gas Power Limited Power generation India 38.50% 49,831
Xe-Pian Xe-Namnoy Power Co., Ltd. Power generation Laos 25.00% 87,426 116,378
PT. Mutiara Jawa Manufacturing and operating floating coal terminal Indonesia 29.00% 2,978 5,168
Samcheok Eco Materials Co., Ltd. (*5) Recycling fly ashes Korea 25.54% 686
Noeul Green Energy Co., Ltd. Power generation Korea 29.00% 1,740
Goseong Green Power Co., Ltd. Power generation Korea 29.00% 262,740 287,624
Gangneung Eco Power Co., Ltd. (*17) Power generation Korea 29.00% 261,000 254,929
Shin Pyeongtaek Power Co., Ltd. Power generation Korea 40.00% 72,000 145,026
Haeng Bok Do Si Photovoltaic Power Co., Ltd. Power generation Korea 28.00% 194 294
Dongducheon Dream Power Co., Ltd. (*6) Power generation Korea 33.61% 148,105 87,203
Jinbhuvish Power Generation Pvt. Ltd. (*2) Power generation India 5.16% 9,000
Daejung Offshore Wind Power Co., Ltd. Power generation Korea 46.59% 5,190 1,483
GS Donghae Electric Power Co., Ltd. Power generation Korea 34.00% 204,000 259,085
Daegu Photovoltaic Co., Ltd. Power generation Korea 29.00% 1,230 2,804
Busan Green Energy Co., Ltd. Power generation Korea 29.00% 5,243 3,259
Hansuwon KNP Co., Ltd. Electric material agency Korea 28.98% 537 467
Korea Electric Power Corporation Fund (*7) Developing electric enterprises Korea 98.09% 20,847 23,421
Energy Infra Asset Management Co., Ltd. (*33) Asset management Korea 9.90% 297 1,213
Daegu clean Energy Co., Ltd. Renewable power generation Korea 28.00% 140
YaksuESS Co., Ltd. Installing ESS related equipment Korea 29.00% 210 285
Nepal Water & Energy Development Company Private Limited (*8,17) Construction and operation of utility plant Nepal 68.88% 110,332 110,573
Gwangyang Green Energy Co., Ltd. Power generation Korea 20.00% 26,800 24,638
PND solar Co., Ltd. Power generation Korea 29.00% 1,250 1,510
Hyundai Eco Energy Co., Ltd. (*2) Power generation Korea 19.00% 3,610 7,947
YeongGwang Yaksu Wind Electric Co., Ltd. (*2) Power generation Korea 9.63% 533 133
Green Energy Electricity Generation Co., Ltd. Power generation Korea 29.00% 1,189 8
Korea Energy Solutions Co., Ltd. R & D Korea 20.00% 300 170
ITR Co., Ltd. (*32) R & D Korea 10.00% 50
STN Co., Ltd. (formerly, Structure test network Co., Ltd.) Technical testing and consulting Korea 20.00% 25 391

99

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Associates>
Indeck Niles Development, LLC Power generation USA 50.00% ~~W~~ 263,825 335,401
Indeck Niles Asset Management, LLC Power generation USA 33.33% 93
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 Holding company Korea 49.00% 6,482 6,496
Suwon New Power Co., Ltd. Power generation Korea 39.90% 798 1,022
Gwangbaek Solar Power Investment Co., Ltd. Power generation Korea 44.00% 4,757 5,155
Go deok Clean Energy Co., Ltd. Fuel cell generation Korea 40.00% 5,560 4,723
SureDataLab Co., Ltd. R & D Korea 23.95% 126 114
SEP Co., Ltd. R & D Korea 21.26% 27
Hankook Electric Power Information Co., Ltd. (*13) R & D Korea 16.49% 38 214
Tronix Co., Ltd. (*13) R & D Korea 12.50% 75 220
O2&B Global Co., Ltd. R & D Korea 20.00% 25 21
Muan Sunshine Solar Power Plant Co., Ltd. Power generation Korea 20.00% 1,570 2,822
Bigeum Resident Photovoltaic Power Co., Ltd. Power generation Korea 29.90% 1
Goesan Solar Park Co., Ltd. Power generation Korea 29.00% 1,276 2,877
Saemangeum Heemang Photovoltaic Co., Ltd. Power generation Korea 35.00% 11,022 14,420
Bitgoel Eco Energy Co., Ltd. Power generation Korea 49.25% 7,880 12,394
Jeju Gimnyeong Wind Power Co., Ltd. Power generation Korea 30.00% 714 246
Seoroseoro Sunny Power Plant Co., Ltd. Power generation Korea 42.58% 706 941
Muan Solar park Co., Ltd. Power generation Korea 20.00% 4,400 6,830
YuDang Solar Co., Ltd. Power generation Korea 20.00% 360 570
Anjwa Smart Farm & Solar City Co., Ltd. Power generation Korea 20.00% 5,651 7,665
KPE Green Energy Co., Ltd. (formerly, Daewon Green Energy Co., Ltd.) Power generation Korea 25.36% 3,910 7,779
G.GURU Co., Ltd. R & D Korea 24.65% 493 167
UD4M Co., Ltd. (*10) R & D Korea 12.50% 75 150
Dongbu Highway Solar Co., Ltd. Power generation Korea 20.00% 190 380
Seobu Highway Solar Co., Ltd. Power generation Korea 20.00% 195 406
Korea Energy Data Co., Ltd. R & D Korea 29.37% 60 36
Gangneung Sacheon Fuel Cell Co., Ltd. Power generation Korea 41.00% 5,695 7,870
KOSTURE Co., Ltd. (*2) Coal recycling business Korea 4.42% 7 8
Taebaek Gadeoksan Wind Power Co., Ltd. Power generation Korea 34.00% 12,570 19,426
Chuncheon Green Energy Co., Ltd. Power generation Korea 45.00% 9,540 8,900
Yeomsubong Wind Power Co., Ltd. (*11) Power generation Korea 29.00% 1,411 871
Yeongyang Wind Power Corporation II Power generation Korea 30.00% 7,965 10,100
Haeparang Energy Co., Ltd. Power generation Korea 25.00% 2,241 2,104
Saemangeum Sebit Power Plant Co., Ltd. (*12) Power generation Korea 55.14% 21,037 37,191
Boulder Solar III, LLC Power generation USA 30.00% 715 754
PlatformN. Co., Ltd. R & D Korea 29.58% 105
PT. Cirebon Energi Prasarana (*9) Power generation Indonesia 10.00% 26,710 76,597
Green Radiation Co., Ltd. (*13) R & D Korea 10.00% 20 26
Future Convergence Technology Laboratory. Co., Ltd. R & D Korea 20.12% 76 36
Eco Motion Co., Ltd. (formerly, SC E&G. Co,. Ltd.) R & D Korea 20.00% 90 267
REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.) (*33) R & D Korea 16.67% 81 120
ACE R & D Korea 20.00% 25 2
Environment and Energy Co., Ltd. (*13) R & D Korea 10.54% 11 9
Santiago Solar Power SpA Power generation Chile 50.00% 13,851 11,769
Yanggu Floating Photovoltaic Power Plant Inc. Power generation Korea 29.00% 904 760
Power Embedded R & D Korea 23.33% 70 70
Changwon SG Energy Co., Ltd. (*13) Power generation Korea 18.78% 900 783
Donpyung Technology. Co., Ltd. R & D Korea 20.00% 125 254
HORANG ENERGY Inc. Power generation Korea 40.00% 4,240 4,149
Hoenggye Renewable Energy Co., Ltd Power generation Korea 36.12% 2,375 2,375
Haman Green Energy Co., Ltd. Power generation Korea 35.00% 4,771 2,981
Songsan Green Energy Co., Ltd. (*21) Power generation Korea 60.00% 8,400 8,323
~~W~~ 3,509,099 6,176,889

100

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Joint ventures>
Shuweihat Asia Power Investment B.V. Holding company Netherlands 49.00% ~~W~~ 44,405 69,902
Shuweihat Asia Operation & Maintenance Company (*14) Maintenance of utility plant Cayman 55.00% 30 1,818
Waterbury Lake Uranium L.P. (*15) Resources development Canada 30.65% 26,602 22,612
ASM-BG Investicii AD Power generation Bulgaria 50.00% 9,846 14,739
RES Technology AD Power generation Bulgaria 50.00% 11,922 14,383
KV Holdings, Inc. (*29) Power generation Philippines 40.00% 2,103 5,186
KEPCO SPC Power Corporation (*14,29) Construction and operation of<br> <br>utility<br>plant Philippines 75.20% 94,579 196,544
Gansu Datang Yumen Wind Power Co., Ltd. Power generation China 40.00% 16,621 6,315
Datang Chifeng Renewable Power Co., Ltd. Power generation China 40.00% 121,928 186,739
Datang KEPCO Chaoyang Renewable Power Co., Ltd. Power generation China 40.00% 39,872 43,207
Rabigh Electricity Company Power generation Saudi arabia 40.00% 109,743 235,051
Rabigh Operation & Maintenance Company Limited Maintenance of utility plant Saudi arabia 40.00% 70 4,964
Jamaica Public Service Company Limited Power generation Jamaica 40.00% 301,910 349,866
KW Nuclear Components Co., Ltd. Manufacturing Korea 45.00% 833 18,680
Busan Shinho Solar Power Co., Ltd. Power generation Korea 25.00% 2,100 6,669
Global Trade Of Power System Co., Ltd. (*16) Exporting products and technology of small or medium business by proxy Korea 29.00% 290 615
Expressway Solar-light Power Generation Co., Ltd. Power generation Korea 50.00% 1,856 5,187
Amman Asia Electric Power Company (*14) Power generation Jordan 60.00% 111,476 223,424
KAPES, Inc. (*14) R & D Korea 51.00% 5,629
Honam Wind Power Co., Ltd. Power generation Korea 29.00% 3,480 4,743
Korea Power Engineering Service Co., Ltd. Construction and service Korea 29.00% 290 5,708
Chun-cheon Energy Co., Ltd. Power generation Korea 29.90% 52,700 35,083
Yeonggwangbaeksu Wind Power Co., Ltd. (*16) Power generation Korea 15.00% 3,000 3,443
Nghi Son 2 Power LLC Power generation Vietnam 50.00% 175,261 417,989
Kelar S.A. (*14) Power generation Chile 65.00% 78,060 131,529
PT. Tanjung Power Indonesia Power generation Indonesia 35.00% 57,039 90,151
Incheon New Power Co., Ltd. (*18) Power generation Korea 29.00% 461 298
Seokmun Energy Co., Ltd. Power generation Korea 29.00% 15,370 16,591
Daehan Wind Power PSC Power generation Jordan 50.00% 7,493 16,426
Barakah One Company (*19) Power generation UAE 18.00% 118
Nawah Energy Company (*19) Operation of utility plant UAE 18.00% 296 330
MOMENTUM International thermonuclear experimental reactor construction management France 33.33% 1 209
Daegu Green Power Co., Ltd. (*20) Power generation Korea 29.00% 46,225 26,430
Yeonggwang Wind Power Co., Ltd. Power generation Korea 46.00% 17,475 23,380
Chester Solar IV SpA Power generation Chile 45.00% 1,700 484
Chester Solar V SpA Power generation Chile 45.00% 525 191
Diego de Almagro Solar SpA Power generation Chile 45.00% 2,091 954
South Jamaica Power Company Limited Power generation Jamaica 20.00% 20,430 43,109
Daesan Green Energy Co., Ltd. Power generation Korea 35.00% 17,850 22,191
RE Holiday Holdings LLC Power generation USA 50.00% 42,948 84,092
RE Pioneer Holdings LLC Power generation USA 50.00% 27,891 54,081
RE Barren Ridge 1 Holdings LLC Power generation USA 50.00% 28,021 58,154
RE Astoria 2 LandCo LLC Power generation USA 50.00% 5,188 6,937
RE Barren Ridge LandCo LLC Power generation USA 50.00% 2,187 2,441
Laurel SpA Power generation Chile 45.00% 1,222 613
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd (*16) Power generation Australia 12.37% 4,095 3,719
Cheong-Song Noraesan Wind Power Co., Ltd. (*15) Power generation Korea 29.01% 3,200 3,756
Chester Solar I SpA Power generation Chile 45.00% 1,181 1,238
Solar Philippines Calatagan Corporation Power generation Philippines 38.00% 47,903 58,130
Saemangeum Solar Power Co., Ltd. (*21) Power generation Korea 81.01% 26,400 23,419
Chungsongmeon BongSan wind power Co., Ltd. (*16) Power generation Korea 29.00% 2,900 2,665

101

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Joint ventures>
Jaeun Resident Wind Power Plant Co., Ltd. (*16) Power generation Korea 29.00% ~~W~~ 2,494 2,214
DE Energia SpA Power generation Chile 49.00% 8,364 9,703
Dangjin Eco Power Co., Ltd. Power generation Korea 34.00% 25,661 26,753
Haemodum Solar Co., Ltd. Power generation Korea 49.00% 2,940 3,122
Yangyang Wind Power Co., Ltd. Power generation Korea 50.00% 12,000 10,435
HORUS SOLAR, S.A. DE C.V. (*22) Renewable power generation Mexico 14.95% 5,068 11,181
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. (*22) Renewable power generation Mexico 14.95% 3,678 10,935
SUNMEX RENOVABLES, S.A. DE C.V. (*22) Renewable power generation Mexico 14.95% 1,678 3,541
Stavro Holding II A.B. Holding company Sweden 20.00% 18,566 18,263
Solaseado Solar Power Co., Ltd. Power generation Korea 39.00% 7,020 17,953
Yeongam Solar Power Co., Ltd. (*16) Power generation Korea 19.00% 6,460 9,637
Samsu Wind Power Co., Ltd. (*16) Power generation Korea 19.00% 2,637 3,022
Pulau Indah Power Plant Sdn. Bhd. Power generation Malaysia 25.00% 24,339 25,603
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 Holding company Korea 29.53% 19,897 21,897
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream (*14) Holding company Korea 90.00% 14,916 15,487
PT Barito Wahana Tenaga Power generation Indonesia 30.61% 59,574 156,994
Cheongna Energy Co., Ltd. (*21) Generating and distributing vapor and hot/cold water Korea 50.10% 49,344 25,549
Naepo Green Energy Co., Ltd. Power generation Korea 29.20% 29,200 5,285
Boim Combined Heat and Power Generation Co., Ltd. (formerly, Dayone Energy Co., Ltd.)<br>(*23) Power generation Korea 30.66% 71,070
OneEnergy Asia Limited Power generation Vietnam 40.00% 195,130 289,966
KAS INVESTMENT I LLC (*15) Holding company USA 29.89% 23,437 15,784
KAS INVESTMENT II LLC (*15) Holding company USA 29.89% 23,343 15,709
Energyco Co., Ltd. Power generation Korea 29.00% 1,659 2,140
CAES, LLC Holding company USA 36.00% 19,414 20,380
Hapcheon Floating Photovoltaic Power Plant Inc. (*16) Power generation Korea 49.00% 7,512 10,348
Busan Industrial Solar Power Co., Ltd. Power generation Korea 28.02% 510 1,058
Bitsolar Energy Co., Ltd. Power generation Korea 27.10% 352 352
Pulau Indah O&M Sdn. Bhd. (*24) Power generation Malaysia 60.00%
Guadalupe Solar SpA (*24) Power generation Chile 60.00% 1,397 1,200
Omisan Wind Power Co., Ltd. Power generation Korea 42.00% 10,752 10,229
Foresight Iberian Solar Group Holding, S.L. (*24) Power generation Spain 75.00% 10,564 8,119
Yeongwol Eco Wind Co., Ltd. Power generation Korea 29.00% 3,089 4,024
Gurae Resident Power Co., Ltd. Power generation Korea 29.00% 386 569
Cheongju Eco Park Co., Ltd. Power generation Korea 29.00% 5,858 9,072
Enel X Midland Photovoltaic, LLC Power generation Korea 20.00% 2,211 2,542
Geumsungsan Wind Power Co., Ltd. Power generation Korea 29.00% 6,531 5,515
KEPCO KPS CARABAO Corp. (*18) Utility plant maintenance Philippines 40.00% 93
Prime Swedish Holding AB Holding company Sweden 45.00% 36,227 38,789
Goheung New Energy Co., Ltd. Power generation Korea 46.15% 12,959 15,736
Gunsan Land Solar Co., Ltd. (*24,30) Power generation Korea 75.29% 19,091 22,429
CapMan Lynx SCA, SICAR Holding company Luxembourg 50.00% 9,601
International Offshore Power Transmission Holding Company Limited Undersea transmission network operation UAE 35.00% 1,423
Pyeongchang Wind Power Co., Ltd. (*27) Power generation Korea 58.00% 9,329 12,228
Eumseong Eco Park Co., Ltd. Power generation Korea 29.00% 5,741 8,386
Changwon Nu-ri Energy Co., Ltd. (*16) Fuel cell generation Korea 61.00% 8,095 8,027
PungBack Wind Farm Corporation (*26) Power generation Korea 32.89% 7,885 7,940
Trumbull Asset Management, LLC (*27) Holding company USA 78.00% 1 936
S-Power Chile SpA Power generation Chile 50.00% 127 64
Seungmun Green Energy Power generation Korea 33.00% 8,973 9,757
Seobusambo highway photovoltaics Co., Ltd. (*25) Power generation Korea 80.00% 3,020 3,580

102

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Key operation activities Location Percentage ofownership Acquisitioncost Book<br>value
<Joint ventures>
Yangyang Suri Wind Power Co., Ltd.(*15) Power generation Korea 29.00% ~~W~~ 10,498 9,608
KEPCO for Power Company (*34) Power generation Saudi arabia 60.00% 3,083 435
Taebaek Wind Power Co., Ltd. (*35) Power generation Korea 60.00% 11,494 13,932
Jeonju Bio Green Energy Co., Ltd.(*24) Power generation Korea 65.00% 3,250 3,195
Kumyang Eco Park Co., Ltd. Power generation Korea 29.00% 3,663 3,663
Jeongeup Green Power Co., Ltd. (*36) Power generation Korea 18.71% 1,560 1,560
Hadong E-factory Co., Ltd.(*15) Power generation Korea 29.99% 350 349
Namyangju Combined Heat and Power Co., Ltd. (*37) Generating and distributing vapor and hot/cold water Korea 55.00% 3,850 3,850
Wadi Noor Solar Power Company SAOC Power generation Oman 50.00% 847 846
Fairhaven Energy Storage LLC (*31) Power generation USA 35.00%
2,431,604 3,485,699
~~W~~ 5,940,703 9,662,588
(*1) the Group is planning to sell its investments in YTN Co., Ltd. based on the resolution of the Board of<br>Directors on November 23, 2022, but investments in YTN Co., Ltd. are not classified as assets held-for-sale as the group hasn’t started the active selling procedures as of December 31, 2023.
--- ---
(*2) The effective percentage of ownership is less than 20%. However, the Group can exercise significant influence<br>by virtue of its contractual right to appoint directors to the board of directors of the entity, and by strict decision criteria of the Group’s financial and operating policy of the board of directors.
--- ---
(*3) The effective percentage of ownership is 100%. However, the Government regulates the Group’s ability to<br>make operating and financial decisions over the entity, as the Government requires maintaining arms-length transactions between KPX and the Group’s other subsidiaries. Accordingly, the entity is not classified as a consolidated subsidiary. The<br>Group can exercise significant influence by virtue of right to nominate directors to the board of directors of the entity.
--- ---
(*4) The effective percentage of ownership is less than 20%. However, the Group can exercise significant influence<br>by virtue of its contractual right to appoint one out of four members of the steering committee of the entity. Moreover, the Group has significant financial transactions, which can affect its significant influence on the entity.<br>
--- ---
(*5) Although the nominal percentage of ownership is 2.35%, the effective percentage of ownership is 25.54%,<br>considering redeemable convertible preferred stock as a liability component. The redeemable convertible preferred stock has been repaid in the current period.
--- ---
(*6) The effective percentage of ownership is 34.01% considering the conversion of redeemable convertible preferred<br>stock into ordinary stock.
--- ---
(*7) The effective percentage of ownership is more than 50% but the Group does not hold control over relevant<br>business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.
--- ---
(*8) The effective percentage of ownership is more than 50% but the Group does not hold control over the entity<br>according to the shareholders’ agreement. Accordingly, the entity is classified as an associate.
--- ---
(*9) The effective percentage of ownership is less than 20%. However, the entity is classified as an associate<br>because the Group exercises significant influence over the decisions related to finance and operation.
--- ---
(*10) The effective percentage of ownership is 14.29% due to the acquisition of treasury stocks. The effective<br>percentage of ownership is less than 20%. However, the Group exercises significant influence over the decisions related to finance and operation by virtue of right to nominate directors to the board of directors of the entity.
--- ---
(*11) The effective percentage of ownership decreased due to the disproportionate paid-in capital increase.<br>
--- ---
(*12) The effective percentage of ownership decreased due to the disproportionate paid-in capital increase during the<br>year ended December 31, 2023. The effective percentage of ownership is more than 50% but the Group does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee.<br>Accordingly, the entity is classified as an associate.
--- ---

103

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
(*13) The effective percentage of ownership is less than 20%. However, the entity is classified as an associate<br>because the Group exercises significant influence over the entity.
--- ---
(*14) The effective percentage of ownership is more than 50%. However, according to the shareholders’ agreement,<br>all critical financial and operating decisions must be agreed to by all ownership parties and the Group can exercise same voting rights as other shareholders at the board of directors. Accordingly, the entities are classified as joint ventures.<br>
--- ---
(*15) The effective percentage of ownership is less than 50%. However, the entity is classified as a joint venture,<br>because all consent was required to make decisions on related activities.
--- ---
(*16) According to the shareholders’ agreement, the parties have joint control over all decisions related to<br>finance and operation. Accordingly, the entity is classified as joint ventures.
--- ---
(*17) The effective percentage of ownership changed due to the disproportionate capital reduction of financial<br>investors during the year ended December 31, 2023.
--- ---
(*18) The joint arrangement which the Group has joint control is structured through a separate company. The parties<br>have joint control over the joint arrangement are classified as joint ventures, judging that they have rights to the net assets of the arrangement.
--- ---
(*19) The effective percentage of ownership is less than 20%. However, decisions in relevant activities must be<br>agreed by ownership parties. Accordingly, the entity is classified as joint ventures.
--- ---
(*20) Although the nominal percentage of ownership is 29%, the effective percentage of ownership is 54.24%,<br>considering the interest of financial investors as a liability component.
--- ---
(*21) The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be<br>agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
--- ---
(*22) The effective percentage of ownership is more than 20%. However, according to the shareholders’ agreement,<br>decisions related principal operation must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
--- ---
(*23) According to the Boim Combined Heat and Power Generation Co., Ltd. Investment Agreement signed in March 2011,<br>the Group has a commitment to guarantee principal and certain returns on shares of REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.). held by NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation.<br>Since NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation have put option regarding their share of the entity, the Group was deemed to have acquired an additional 15.6% stake. As a result, the effective percentage of<br>ownership is 46.3% in the current and prior period. In accordance with shareholders’ agreement signed during the current period, the Group has joint control with other investors in making important financial and operation decisions, so it has<br>been reclassified from an associate to a joint venture.
--- ---
(*24) The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be<br>agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
--- ---
(*25) Due to the changes in the agreement, the Group lost its control over the entity. Accordingly, the entity is<br>reclassified to a joint venture from a subsidiary. Although the effective percentage of ownership is more than 50%, decisions in relevant activities must be agreed by all members of the board of directors.
--- ---
(*26) The effective percentage of ownership is 37%, considering potential common stock.
--- ---
(*27) The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be<br>agreed by all members of the board of directors. Accordingly, the entity is classified as a joint venture.
--- ---
(*28) The effective percentage of ownership is more than 50%. However, by the shareholders’ agreement, the Group<br>does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision committee. Accordingly, the entity is classified as an associate.
--- ---
(*29) The Group is planning to sell its investment in SPC Power Corporation, KEPCO SPC Power Corporation, and KV<br>Holdings, Inc. and the timing of and proceeds from such sales transaction is not specified as of December 31, 2023.
--- ---
(*30) The nominal percentage of ownership is 75.29% and the effective percentage of ownership is 56.91%, as the Group<br>has an obligation to provide excessive dividend income to Gunsan City when a certain rate of return defined in the shareholders’ agreement is met.
--- ---
(*31) Although the investment has not yet been paid, commitment to pay 35% of investment in the future has been made.<br>
--- ---

104

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2024 and 2023 are as follows,continued:
--- ---
(*32) Although the Group’s effective percentage of ownership is less than 20%, the entity has been classified as<br>an associate as the Group has significant influence on the entity considering the fact that ordinary resolutions passed at the shareholders’ meeting require the majority decision and the Group has the right to elect the entity’s directors.<br>
--- ---
(*33) Although the Group’s effective percentage of ownership is less than 20%, the Group can exercise<br>significant influence on the entity through its contractual right to appoint one director to the entity’s board of directors.
--- ---
(*34) Although the Group’s effective percentage of ownership is more than 50%, the entity is reclassified as a<br>joint venture since the entity’s material financial and operational decisions require unanimous agreement of members in the board of directors due to the shareholders’ agreement concluded during the year ended December 31, 2023.<br>
--- ---
(*35) Although the Group’s effective percentage of ownership is more than 50%, the entity is reclassified as a<br>joint venture considering the minimum number of the entity’s board of directors’ members required to agree for making decision on material financial and operational policies, as the joint shareholders’ agreement changed during the<br>year ended December 31, 2023.
--- ---
(*36) Although the Group’s effective percentage of ownership is less than 20%, the entity is reclassified as a<br>joint venture considering the Group can exercise significant influence on the entity due to the Group’s contractual right to appoint a director to the entity’s board of directors and the minimum number of the entity’s board of<br>directors members required to agree for making decision on material financial and operational policies in accordance with the joint shareholders’ agreement.
--- ---
(*37) Although the Group’s effective percentage of ownership is more than 50%, the entity is classified as a<br>joint venture since the entity’s material financial and operational decisions require unanimous agreement of members in the board of directors.
--- ---

105

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(2) The fair values of investments in associates which are actively traded in an open market as ofDecember 31, 2024 and 2023 are as follows:
--- ---
In millions of won
--- --- --- --- ---
Investees As of December 31, 2024 As of December 31, 2023
<Associates>
Korea Electric Power Industrial Development Co., Ltd. ~~W~~ 88,489 69,298
Korea Gas Corporation 655,830 466,830
YTN Co., Ltd. (*) 54,180
SPC Power Corporation 130,063 92,219
PT. Bayan Resources TBK 12,298,501 11,090,934
(*) The Group sold all of its shares in YTN Co., Ltd. for the year ended December 31, 2024.<br>
--- ---

106

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Associates>
Korea Gas Corporation ~~W~~ 1,970,643 248,385 36,628 33,648 2,289,304
Korea Electric Power Industrial Development Co., Ltd. 29,500 (2,801 ) 3,124 354 30,177
YTN Co., Ltd. 52,303 (52,303 )
Gangwon Wind Power Co., Ltd. 12,001 (1,420 ) 1,112 11,693
Hyundai Green Power Co., Ltd. 118,173 (3,555 ) 2,712 (29,937 ) 87,393
Korea Power Exchange 274,286 2,768 (59 ) (3,033 ) 273,962
Taebaek Guinemi Wind Power Co., Ltd. 13,530 29 13,559
Daeryun Power Co., Ltd. 26,834 4,301 (42 ) 31,093
KNH Solar Co., Ltd. 3,194 (1,620 ) 591 2,165
SPC Power Corporation 78,931 (13,529 ) 13,412 28,760 107,574
Gemeng International Energy Co., Ltd. 705,812 (22,908 ) (33,472 ) 78,870 36 728,338
PT. Cirebon Electric Power 134,259 4,144 19,127 157,530
KNOC Nigerian East Oil Co., Ltd. (12,334 ) 1,621 10,713
KNOC Nigerian West Oil Co., Ltd. 1,519 1,475 (2,994 )
PT Wampu Electric Power 34,555 (3,765 ) 3,495 152 4,831 39,268
PT. Bayan Resources TBK 619,207 (168,698 ) 187,634 79,332 (99 ) 717,376
S-Power Co., Ltd. 162,765 17,607 180,372
Pioneer Gas Power Limited
Xe-Pian Xe-Namnoy Power Co., Ltd. 116,378 (20,217 ) 11,861 (34,957 ) 73,065
PT. Mutiara Jawa 5,168 103 464 5,735
Samcheok Eco Materials Co., Ltd.
Noeul Green Energy Co., Ltd.
Goseong Green Power Co., Ltd. 287,624 (3,026 ) (56 ) 284,542
Gangneung Eco Power Co., Ltd. 254,929 (13,115 ) 241,814
Shin Pyeongtaek Power Co., Ltd. 145,026 (30,080 ) 24,145 (32 ) 139,059
Haeng Bok Do Si Photovoltaic Power Co., Ltd. 294 66 360
Dongducheon Dream Power Co., Ltd. 87,203 4,141 7 91,351
Jinbhuvish Power Generation Pvt. Ltd.
Daejung Offshore Wind Power Co., Ltd. 1,483 7 1,490
GS Donghae Electric Power Co., Ltd. 259,085 20,323 24 279,432
Daegu Photovoltaic Co., Ltd. 2,804 (344 ) 75 2,535
Busan Green Energy Co., Ltd. 3,259 (910 ) (15 ) 2,334
Hansuwon KNP Co., Ltd. 467 207 674
Korea Electric Power Corporation Fund 23,421 (9,637 ) 479 (910 ) 13,353
Energy Infra Asset Management Co., Ltd. 1,213 (89 ) 144 1,268
Daegu clean Energy Co., Ltd.
YaksuESS Co., Ltd. 285 (123 ) 162
Nepal Water & Energy Development Company Private Limited 110,573 7,392 52,990 170,955
Gwangyang Green Energy Co., Ltd. 24,638 (421 ) 24,217
PND solar Co., Ltd. 1,510 225 1,735
Hyundai Eco Energy Co., Ltd. 7,947 (477 ) 1,024 (1 ) 8,493
YeongGwang Yaksu Wind Electric Co., Ltd. 133 (92 ) 41
Green Energy Electricity Generation Co., Ltd. 8 (8 )
Korea Energy Solutions Co., Ltd. 170 27 197
ITR Co., Ltd. (12 ) 12
STN Co., Ltd. 391 16 407
Indeck Niles Development, LLC 335,401 (14,551 ) (10,591 ) 12,909 47,802 370,970
Indeck Niles Asset Management, LLC 93 (416 ) 373 10 60
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 6,496 (374 ) (360 ) 358 (1 ) 6,119
Suwon New Power Co., Ltd. 1,022 (108 ) 914
Gwangbaek Solar Power Investment Co., Ltd. 5,155 (523 ) 523 5,155
Go deok Clean Energy Co., Ltd. 4,723 578 5,301
SureDataLab Co., Ltd. 114 (66 ) 48

107

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Associates>
SEP Co., Ltd. ~~W~~
Hankook Electric Power Information Co., Ltd. 214 (2 ) 212
Tronix Co., Ltd. 220 (74 ) 146
O2&B Global Co., Ltd. 21 (21 )
Muan Sunshine Solar Power Plant Co., Ltd. 2,822 (560 ) 510 2,772
Bigeum Resident Photovoltaic Power Co., Ltd. 9,525 (1,560 ) (57 ) 7,908
Goesan Solar Park Co., Ltd. 2,877 256 3,133
Saemangeum Heemang Photovoltaic Co., Ltd. 14,420 1,717 16,137
Bitgoel Eco Energy Co., Ltd. 12,394 (1,905 ) 3,212 13 (13 ) 13,701
Jeju Gimnyeong Wind Power Co., Ltd. 246 4 250
Seoroseoro Sunny Power Plant Co., Ltd. 941 89 1,030
Muan Solar park Co., Ltd. 6,830 (1,400 ) 837 6,267
YuDang Solar Co., Ltd. 570 (60 ) 110 (3 ) 617
Anjwa Smart Farm & Solar City Co., Ltd. 7,665 633 8,298
KPE Green Energy Co., Ltd. 7,779 451 8,230
G.GURU Co., Ltd. 167 (133 ) 34
UD4M Co., Ltd. 150 (29 ) 121
Dongbu Highway Solar Co., Ltd. 380 132 512
Seobu Highway Solar Co., Ltd. 406 173 579
Korea Energy Data Co., Ltd. 36 (13 ) 23
Gangneung Sacheon Fuel Cell Co., Ltd. 7,870 1,436 9,306
KOSTURE Co., Ltd. 8 (7 ) (1 )
Taebaek Gadeoksan Wind Power Co., Ltd. 19,426 (1,767 ) 5,250 22,909
Chuncheon Green Energy Co., Ltd. 8,900 8,772 17,672
Yeomsubong Wind Power Co., Ltd. 871 (268 ) 603
Yeongyang Wind Power Corporation II 10,100 1,201 11,301
Haeparang Energy Co., Ltd. 2,104 (154 ) 1,950
Saemangeum Sebit Power Plant Co., Ltd. 37,191 (81 ) 37,110
Boulder Solar III, LLC 754 (754 )
PlatformN. Co., Ltd.
PT. Cirebon Energi Prasarana 76,597 6,051 2,782 11,416 96,846
Green Radiation Co., Ltd. 26 (26 )
Future Convergence Technology Laboratory. Co., Ltd. 36 (14 ) 22
Eco Motion Co., Ltd. 267 (38 ) 229
REC’s Innovation Co., Ltd. 120 59 (24 ) 155
ACE 2 3 5
Environment and Energy Co., Ltd. 9 (4 ) (2 ) 3
Santiago Solar Power SpA 11,769 (4,877 ) 69 6,961
Yanggu Floating Photovoltaic Power Plant Inc. 760 86 846
Power Embedded 70 (2 ) 68
Changwon SG Energy Co., Ltd. 783 (101 ) 682
Donpyung Technology. Co., Ltd. 254 27 281
HORANG ENERGY Inc. 4,149 (341 ) 3,808
Hoenggye Renewable Energy Co., Ltd 2,375 2,375
Haman Green Energy Co., Ltd. 2,981 (145 ) (26 ) 2,810
Songsan Green Energy Co., Ltd. 8,323 (415 ) 7,908
SkyPic Inc. 26 26
HyChangwon Fuel Cell. Co., Ltd. 9,396 (118 ) 9,278
Dreams Co.,Ltd. 11 11
DEEPAI Co.,Ltd. 11 11
Amaala Sustainable Company for Energy LLC 18 18
6,176,889 18,987 (77,626 ) (266,868 ) 502,636 341,774 8,962 6,704,754

108

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Joint ventures>
Shuweihat Asia Power Investment B.V. ~~W~~ 69,902 1,709 14,839 86,450
Shuweihat Asia Operation & Maintenance Company 1,818 (1,200 ) 1,262 258 2,138
Waterbury Lake Uranium L.P. 22,612 74 1,070 23,756
ASM-BG Investicii AD 14,739 1,413 784 16,936
RES Technology AD 14,383 (145 ) 831 15,069
KV Holdings, Inc. 5,186 (989 ) 720 574 1,430 6,921
KEPCO SPC Power Corporation 196,544 (28,591 ) 16,714 (25,528 ) 159,139
Gansu Datang Yumen Wind Power Co., Ltd. 6,315 812 792 7,919
Datang Chifeng Renewable Power Co., Ltd. 186,739 (10,624 ) 7,772 20,629 204,516
Datang KEPCO Chaoyang Renewable Power Co., Ltd. 43,207 (591 ) 813 4,896 48,325
Rabigh Electricity Company 235,051 (7,270 ) 17,147 24,965 269,893
Rabigh Operation & Maintenance Company Limited 4,964 2,461 886 8,311
Jamaica Public Service Company Limited 349,866 (15,215 ) 28,849 49,463 (347 ) 412,616
KW Nuclear Components Co., Ltd. 18,680 (833 ) 911 18,758
Busan Shinho Solar Power Co., Ltd. 6,669 (667 ) 991 6,993
Global Trade Of Power System Co., Ltd. 615 81 696
Expressway Solar-light Power Generation Co., Ltd. 5,187 584 5,771
Amman Asia Electric Power Company 223,424 (8,171 ) 20,485 33,126 268,864
KAPES, Inc. (1,095 ) 1,095
Honam Wind Power Co., Ltd. 4,743 (435 ) 525 4,833
Korea Power Engineering Service Co., Ltd. 5,708 419 (73 ) 6,054
Chun-cheon Energy Co., Ltd. 35,083 1,516 36,599
Yeonggwangbaeksu Wind Power Co., Ltd. 3,443 286 3,729
Nghi Son 2 Power LLC 417,989 45,889 99,201 563,079
Kelar S.A. 131,529 4,739 (2,498 ) 18,597 152,367
PT. Tanjung Power Indonesia 90,151 (8,349 ) 6,138 14,122 (1,482 ) 100,580
Incheon New Power Co., Ltd. 298 4 302
Seokmun Energy Co., Ltd. 16,591 (1,135 ) 15,456
Daehan Wind Power PSC 16,426 1,779 3,122 21,327
Barakah One Company
Nawah Energy Company 330 14 48 392
MOMENTUM 209 (225 ) 196 15 195
Daegu Green Power Co., Ltd. 26,430 4,103 (20 ) 30,513
Yeonggwang Wind Power Co., Ltd. 23,380 2,766 26,146
Chester Solar IV SpA 484 1,076 (216 ) 108 1,452
Chester Solar V SpA 191 108 (66 ) 29 262
Diego de Almagro Solar SpA 954 810 (160 ) 96 1,700
South Jamaica Power Company Limited 43,109 (2,895 ) 2,704 5,842 48,760
Daesan Green Energy Co., Ltd. 22,191 3,144 (4 ) 25,331
RE Holiday Holdings LLC 84,092 (3,139 ) 8,827 89,780
RE Pioneer Holdings LLC 54,081 (2,910 ) 4,451 55,622
RE Barren Ridge 1 Holdings LLC 58,154 (1,966 ) (1,546 ) 5,164 59,806
RE Astoria 2 LandCo LLC 6,937 (404 ) 594 992 8,119
RE Barren Ridge LandCo LLC 2,441 (170 ) 237 349 2,857
Laurel SpA 613 934 (228 ) 113 1,432
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd 3,719 9 435 (3,014 ) 1,149
Cheong-Song Noraesan Wind Power Co., Ltd. 3,756 560 1 4,317
Chester Solar I SpA 1,238 134 184 93 1,649
Solar Philippines Calatagan Corporation 58,130 (6,107 ) 6,523 5,149 63,695
Saemangeum Solar Power Co., Ltd. 23,419 (142 ) 23,277
Chungsongmeon BongSan wind power Co., Ltd. 2,665 (75 ) 2,590
Jaeun Resident Wind Power Plant Co., Ltd. 2,214 (169 ) 2,045
DE Energia SpA 9,703 1,359 11,062

109

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Joint ventures>
Dangjin Eco Power Co., Ltd. ~~W~~ 26,753 253 (139 ) 26,867
Haemodum Solar Co., Ltd. 3,122 108 3,230
Yangyang Wind Power Co., Ltd. 10,435 1,209 (4 ) 11,640
HORUS SOLAR, S.A. DE C.V. 11,181 (9,636 ) (57 ) 1,488
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. 10,935 (6,540 ) 57 4,452
SUNMEX RENOVABLES, S.A. DE C.V. 3,541 (1,724 ) (130 ) 1,687
Stavro Holding II A.B. 18,263 (2,326 ) (676 ) 1,198 16,459
Solaseado Solar Power Co., Ltd. 17,953 4,840 22,793
Yeongam Solar Power Co., Ltd. 9,637 2,191 11,828
Samsu Wind Power Co., Ltd. 3,022 (301 ) 130 2,851
Pulau Indah Power Plant Sdn. Bhd. 25,603 14,713 (816 ) 11,221 50,721
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 21,897 959 (6,896 ) (527 ) 15,433
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream 15,487 (68 ) (87 ) 164 15,496
PT Barito Wahana Tenaga 156,994 24,435 26,136 207,565
Cheongna Energy Co., Ltd. 25,549 20,609 46,158
Naepo Green Energy Co., Ltd. 5,285 32,284 10,462 48,031
Boim Combined Heat and Power Generation Co., Ltd.
OneEnergy Asia Limited 289,966 62,880 47,346 65,157 465,349
KAS INVESTMENT I LLC 15,784 (12,916 ) 3,210 6,078
KAS INVESTMENT II LLC 15,709 (12,867 ) 3,198 6,040
Energyco Co., Ltd. 2,140 182 2,322
CAES, LLC 20,380 (663 ) 340 (1,687 ) 2,289 20,659
Hapcheon Floating Photovoltaic Power Plant Inc. 10,348 (661 ) 1,647 11,334
Busan Industrial Solar Power Co., Ltd. 1,058 102 1,160
Bitsolar Energy Co., Ltd. 352 (352 )
Pulau Indah O&M Sdn. Bhd.
Guadalupe Solar SpA 1,200 (431 ) 12 781
Omisan Wind Power Co., Ltd. 10,229 630 10,859
Foresight Iberian Solar Group Holding, S.L. 8,119 (5,852 ) (2,626 ) 359
Yeongwol Eco Wind Co., Ltd. 4,024 (3,134 ) 890
Gurae Resident Power Co., Ltd. 569 (236 ) 333
Cheongju Eco Park Co., Ltd. 9,072 1,564 10,636
Enel X Midland Photovoltaic, LLC 2,542 173 2,715
Geumsungsan Wind Power Co., Ltd. 5,515 2,325 7,840
KEPCO KPS CARABAO Corp.
Prime Swedish Holding AB 38,789 (3,782 ) 2,552 37,559
Goheung New Energy Co., Ltd. 15,736 32 15,768
Gunsan Land Solar Co., Ltd. 22,429 734 23,163
CapMan Lynx SCA, SICAR
International Offshore Power Transmission Holding Company Limited 1,423 (65 ) 9,680 11,038
Pyeongchang Wind Power Co., Ltd. 12,228 (81 ) 12,147
Eumseong Eco Park Co., Ltd. 8,386 3,227 11,613
Changwon Nu-ri Energy Co., Ltd. 8,027 (369 ) 7,658
PungBack Wind Farm Corporation 7,940 (180 ) 7,760
Trumbull Asset Management, LLC 936 212 149 1,297
S-Power Chile SpA 64 74 21 159
Seungmun Green Energy 9,757 2,988 12,745
Seobusambo highway photovoltaics Co., Ltd. 3,580 (271 ) 3,309

110

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Joint ventures>
Yangyang Suri Wind Power Co., Ltd. ~~W~~ 9,608 (912 ) (53 ) 8,643
Kepco for Power Company 435 (570 ) 18,041 17,906
Taebaek Wind Power Co., Ltd. 13,932 827 14,759
Jeonju Bio Green Energy Co., Ltd. 3,195 (629 ) 2,566
Kumyang Eco Park Co., Ltd. 3,663 178 3,841
Jeongeup Green Power Co., Ltd. 1,560 8,040 (1,473 ) 719 8,846
Hadong E-factory Co., Ltd. 349 (5 ) 344
Namyangju Combined Heat and Power Co., Ltd. 3,850 50,127 (1,519 ) (690 ) 51,768
Wadi Noor Solar Power Company SAOC 846 (5,170 ) 5,716 1,392
Samcheok Eco Materials Co., Ltd.
Fairhaven Energy Storage LLC 1,505 (854 ) 29 (680 )
Rutile BESS Holdings, LLC 106 (106 ) 1 1
Trumbull Development Partners, LLC 304,836 7,976 42,567 355,379
Imha Floating Photovoltaic Power Plant Inc. 7,174 (823 ) 6,351
EDFR KOWEPO AJBAN PV HOLDING LIMITED 1 (72 ) 156 85
Roof One Energy Co., Ltd. 2,000 2,000
3,485,699 455,403 (68 ) (97,509 ) 252,816 453,895 31,104 4,581,340
~~W~~ 9,662,588 474,390 (77,694 ) (364,377 ) 755,452 795,669 40,066 11,286,094

111

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2023
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Associates>
Korea Gas Corporation ~~W~~ 2,085,296 (155,819 ) 47,220 (6,054 ) 1,970,643
Korea Electric Power Industrial Development Co., Ltd. 31,078 (2,156 ) 1,790 (1,212 ) 29,500
YTN Co., Ltd. 55,027 (540 ) (1,147 ) (14 ) (1,023 ) 52,303
Gangwon Wind Power Co., Ltd. 12,158 (2,272 ) 2,115 12,001
Hyundai Green Power Co., Ltd. 119,791 (3,555 ) 2,159 (222 ) 118,173
Korea Power Exchange 275,126 4,575 (5,415 ) 274,286
Taebaek Wind Power Co., Ltd. 14,501 (14,501 )
Taebaek Guinemi Wind Power Co., Ltd. 13,049 481 13,530
Daeryun Power Co., Ltd. 26,727 143 (12 ) (24 ) 26,834
KNH Solar Co., Ltd. 2,883 311 3,194
SPC Power Corporation 70,868 (2,669 ) 9,667 1,065 78,931
Gemeng International Energy Co., Ltd. 578,821 102,854 (12,527 ) 41,280 565 (5,181 ) 705,812
PT. Cirebon Electric Power 135,114 (10,770 ) 7,519 2,396 134,259
KNOC Nigerian East Oil Co., Ltd. (7 ) (213 ) 220
KNOC Nigerian West Oil Co., Ltd. (7 ) (196 ) 203
PT Wampu Electric Power 37,743 (3,850 ) (268 ) 224 706 34,555
PT. Bayan Resources TBK 684,719 (344,360 ) 252,406 26,500 (58 ) 619,207
S-Power Co., Ltd. 141,128 21,637 162,765
Pioneer Gas Power Limited
Eurasia Energy Holdings
Xe-Pian Xe-Namnoy Power Co., Ltd. 115,584 (848 ) 1,642 116,378
PT. Mutiara Jawa 3,597 (459 ) 1,936 94 5,168
Samcheok Eco Materials Co., Ltd.
Noeul Green Energy Co., Ltd.
Goseong Green Power Co., Ltd. 288,893 (1,240 ) (29 ) 287,624
Gangneung Eco Power Co., Ltd. 258,100 (3,171 ) 254,929
Shin Pyeongtaek Power Co., Ltd. 133,823 (70,040 ) 81,258 (15 ) 145,026
Haeng Bok Do Si Photovoltaic Power Co., Ltd. 278 16 294
Dongducheon Dream Power Co., Ltd. 89,300 (2,568 ) 471 87,203
Jinbhuvish Power Generation Pvt. Ltd.
Daejung Offshore Wind Power Co., Ltd. 1,555 (72 ) 1,483
GS Donghae Electric Power Co., Ltd. 260,145 (21,846 ) 21,240 (454 ) 259,085
Daegu Photovoltaic Co., Ltd. 2,849 (408 ) 363 2,804
Busan Green Energy Co., Ltd. 4,395 (1,137 ) 1 3,259
Gunsan Bio Energy Co., Ltd.
Hansuwon KNP Co., Ltd. 280 187 467
Korea Electric Power Corporation Fund 28,842 (2,266 ) (2,865 ) (290 ) 23,421
Energy Infra Asset Management Co., Ltd. 1,184 (89 ) 118 1,213
Daegu clean Energy Co., Ltd. 12 (12 )
YaksuESS Co., Ltd. 486 (201 ) 285
Nepal Water & Energy Development Company Private Limited 69,940 40,103 (325 ) 855 110,573
Gwangyang Green Energy Co., Ltd. 25,044 (406 ) 24,638
PND solar Co., Ltd. 1,403 107 1,510
Hyundai Eco Energy Co., Ltd. 7,631 (874 ) 1,198 (8 ) 7,947
YeongGwang Yaksu Wind Electric Co., Ltd. 156 (23 ) 133
Green Energy Electricity Generation Co., Ltd. 1,571 (1,563 ) 8
Korea Energy Solutions Co., Ltd. 93 77 170
ITR Co., Ltd. (33 ) 33
STN Co., Ltd. (formerly, Structure test network Co., Ltd.) 366 25 391
Namjeongsusang Solar Power Operation Co., Ltd. 373 (217 ) (156 )
Indeck Niles Development, LLC 302,038 32,067 (3,623 ) 4,919 335,401
Indeck Niles Asset Management, LLC 94 (337 ) 334 2 93
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 6,932 (428 ) (373 ) 366 (1 ) 6,496
Suwon New Power Co., Ltd. 919 103 1,022
Gwangbaek Solar Power Investment Co., Ltd. 5,133 (644 ) 666 5,155

112

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2023
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Associates>
Go deok Clean Energy Co., Ltd. ~~W~~ 4,420 303 4,723
SureDataLab Co., Ltd. 177 (63 ) 114
SEP Co., Ltd.
Hankook Electric Power Information Co., Ltd. 220 (6 ) 214
Tronix Co., Ltd. 66 154 220
O2&B Global Co., Ltd. 36 (15 ) 21
Muan Sunshine Solar Power Plant Co., Ltd. 2,562 (340 ) 600 2,822
Bigeum Resident Photovoltaic Power Co., Ltd. (414 ) 414
Goesan Solar Park Co., Ltd. 2,591 286 2,877
Saemangeum Heemang Photovoltaic Co., Ltd. 13,010 1,410 14,420
Bitgoel Eco Energy Co., Ltd. 8,951 3,443 12,394
Jeju Gimnyeong Wind Power Co., Ltd. 872 (626 ) 246
Seoroseoro Sunny Power Plant Co., Ltd. 859 82 941
Muan Solar park Co., Ltd. 7,838 (2,680 ) 1,672 6,830
YuDang Solar Co., Ltd. 586 (100 ) 84 570
Anjwa Smart Farm & Solar City Co., Ltd. 8,662 (1,400 ) 403 7,665
KPE Green Energy Co., Ltd. (formerly, Daewon Green Energy Co., Ltd.) 4,485 3,294 7,779
G.GURU Co., Ltd. 300 (133 ) 167
UD4M Co., Ltd. 161 (11 ) 150
Dongbu Highway Solar Co., Ltd. 352 28 380
Seobu Highway Solar Co., Ltd. 316 90 406
Korea Energy Data Co., Ltd. 62 (26 ) 36
Gangneung Sacheon Fuel Cell Co., Ltd. 4,277 3,593 7,870
KOSTURE Co., Ltd. 1 6 1 8
Taebaek Gadeoksan Wind Power Co., Ltd. 20,040 (3,723 ) 3,109 19,426
Chuncheon Green Energy Co., Ltd. 9,155 (204 ) (51 ) 8,900
Yeomsubong Wind Power Co., Ltd. 62 1,316 (507 ) 871
Yeongyang Wind Power Corporation II 7,461 2,639 10,100
Haeparang Energy Co., Ltd. 2,188 (84 ) 2,104
Saemangeum Sebit Power Plant Co., Ltd. 23,199 7,249 (709 ) 7,452 37,191
Boulder Solar III, LLC 744 10 754
PlatformN. Co., Ltd. 84 (84 )
PT. Cirebon Energi Prasarana 69,035 7,328 (891 ) 1,125 76,597
Green Radiation Co., Ltd. 11 15 26
Future Convergence Technology Laboratory. Co., Ltd. 50 (14 ) 36
Eco Motion Co., Ltd. (formerly, SC E&G. Co,. Ltd.) 214 53 267
REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.) 166 (72 ) 26 120
ACE 20 (18 ) 2
Environment and Energy Co., Ltd. 10 (1 ) 9
Santiago Solar Power SpA 13,373 (1,522 ) (82 ) 11,769
Yanggu Floating Photovoltaic Power Plant Inc. 903 (143 ) 760
Power Embedded 70 70
Changwon SG Energy Co., Ltd. 900 (117 ) 783
Donpyung Technology. Co., Ltd. 125 154 (25 ) 254
HORANG ENERGY Inc. 4,240 (91 ) 4,149
Hoenggye Renewable Energy Co., Ltd 2,375 2,375
Haman Green Energy Co., Ltd. 4,771 (1,790 ) 2,981
Songsan Green Energy Co., Ltd. 8,323 8,323
5,844,464 422,109 (2,911 ) (486,012 ) 334,379 73,198 (8,338 ) 6,176,889

113

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2023
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Joint ventures>
KEPCO-Uhde Inc. ~~W~~ 17 (10 ) (7 )
Shuweihat Asia Power Investment B.V. 66,452 (512 ) (440 ) 4,402 69,902
Shuweihat Asia Operation & Maintenance Company 1,631 (1,077 ) 1,237 27 1,818
Waterbury Lake Uranium L.P. 21,750 70 792 22,612
ASM-BG Investicii AD 14,555 (697 ) 680 201 14,739
RES Technology AD 15,133 (697 ) (513 ) 460 14,383
KV Holdings, Inc. 9,659 280 161 (4,914 ) 5,186
KEPCO SPC Power Corporation 179,594 13,224 3,726 196,544
Gansu Datang Yumen Wind Power Co., Ltd. 6,024 316 (25 ) 6,315
Datang Chifeng Renewable Power Co., Ltd. 191,982 (14,293 ) 9,012 38 186,739
Datang KEPCO Chaoyang Renewable Power Co., Ltd. 44,398 (1,771 ) 639 (59 ) 43,207
Rabigh Electricity Company 214,607 (6,263 ) 28,456 (1,749 ) 235,051
Rabigh Operation & Maintenance Company Limited 5,113 (2,994 ) 2,759 86 4,964
Jamaica Public Service Company Limited 331,407 (15,715 ) 32,862 7,959 (6,647 ) 349,866
KW Nuclear Components Co., Ltd. 17,090 (833 ) 2,423 18,680
Busan Shinho Solar Power Co., Ltd. 6,719 (1,169 ) 1,119 6,669
Global Trade Of Power System Co., Ltd. 698 (83 ) 615
Expressway Solar-light Power Generation Co., Ltd. 4,754 433 5,187
Amman Asia Electric Power Company 220,254 (15,636 ) 17,833 973 223,424
KAPES, Inc. (1,162 ) 1,162
Honam Wind Power Co., Ltd. 4,819 (522 ) 446 4,743
Korea Power Engineering Service Co., Ltd. 5,543 (44 ) 349 (140 ) 5,708
Chun-cheon Energy Co., Ltd. 32,044 3,039 35,083
Yeonggwangbaeksu Wind Power Co., Ltd. 3,151 292 3,443
Nghi Son 2 Power LLC 408,839 14,742 (5,592 ) 417,989
Kelar S.A. 117,137 11,655 848 1,889 131,529
PT. Tanjung Power Indonesia 92,907 (12,641 ) 9,679 338 (132 ) 90,151
Incheon New Power Co., Ltd. 198 (69 ) 147 22 298
Seokmun Energy Co., Ltd. 17,336 (745 ) 16,591
Daehan Wind Power PSC 13,923 2,437 66 16,426
Barakah One Company
Nawah Energy Company 315 10 5 330
MOMENTUM 345 (365 ) 208 21 209
Daegu Green Power Co., Ltd. 29,360 (2,856 ) (74 ) 26,430
Yeonggwang Wind Power Co., Ltd. 20,713 (2,688 ) 5,355 23,380
Chester Solar IV SpA 181 324 (21 ) 484
Chester Solar V SpA 156 35 (3 ) 3 191
Diego de Almagro Solar SpA 540 447 (37 ) 4 954
South Jamaica Power Company Limited 46,437 (7,667 ) 3,709 630 43,109
Daesan Green Energy Co., Ltd. 19,218 2,977 (4 ) 22,191
RE Holiday Holdings LLC 85,370 (1,549 ) (1,425 ) 1,696 84,092
RE Pioneer Holdings LLC 55,172 (1,162 ) (2,089 ) 2,160 54,081
RE Barren Ridge 1 Holdings LLC 3,350 (3,087 ) (1,733 ) 59,624 58,154
RE Astoria 2 LandCo LLC 6,599 (354 ) 575 117 6,937
RE Barren Ridge LandCo LLC 2,333 (161 ) 228 41 2,441
Laurel SpA 554 64 (14 ) 9 613
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd 3,651 (23 ) 91 3,719
Chile Solar JV SpA 9,819 3,569 1,276 (14,664 )
Cheong-Song Noraesan Wind Power Co., Ltd. 4,263 (865 ) 358 3,756
Chester Solar I SpA 1,314 (71 ) (29 ) 24 1,238
Solar Philippines Calatagan Corporation 56,902 (6,025 ) 6,025 1,228 58,130
Saemangeum Solar Power Co., Ltd. 23,551 (132 ) 23,419
Chungsongmeon BongSan wind power Co., Ltd. 3,470 (805 ) 2,665
Jaeun Resident Wind Power Plant Co., Ltd. 2,236 (22 ) 2,214
DE Energia SpA 9,536 167 9,703

114

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2023
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
<Joint ventures>
Dangjin Eco Power Co., Ltd. ~~W~~ 26,859 212 (318 ) 26,753
Haemodum Solar Co., Ltd. 3,367 (392 ) 147 3,122
Yangyang Wind Power Co., Ltd. 10,864 (429 ) 10,435
HORUS SOLAR, S.A. DE C.V. 6,976 3,594 611 11,181
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. 4,899 4,088 1,948 10,935
SUNMEX RENOVABLES, S.A. DE C.V. 1,657 1,482 402 3,541
Stavro Holding II A.B. 17,171 (17 ) 149 960 18,263
Solaseado Solar Power Co., Ltd. 16,233 1,720 17,953
Yeongam Solar Power Co., Ltd. 9,879 (592 ) 350 9,637
Samsu Wind Power Co., Ltd. 3,205 (514 ) 331 3,022
Pulau Indah Power Plant Sdn. Bhd. 26,814 (27 ) 671 (2,360 ) 505 25,603
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 21,723 928 (1,092 ) (1,568 ) 1,906 21,897
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream 15,587 (96 ) (4 ) 15,487
PT Barito Wahana Tenaga 137,047 20,546 (599 ) 156,994
Cheongna Energy Co., Ltd. 10,758 14,791 25,549
Naepo Green Energy Co., Ltd. 5,285 5,285
Boim Combined Heat and Power Generation Co., Ltd. (formerly, Dayone Energy Co., Ltd.)
OneEnergy Asia Limited 172,218 79,182 39,091 (525 ) 289,966
KAS INVESTMENT I LLC 18,247 (2,223 ) (240 ) 15,784
KAS INVESTMENT II LLC 18,173 (2,225 ) (239 ) 15,709
Energyco Co., Ltd. 2,190 (50 ) 2,140
CAES, LLC 20,805 (860 ) 114 321 20,380
Hapcheon Floating Photovoltaic Power Plant Inc. 8,471 1,877 10,348
Busan Industrial Solar Power Co., Ltd. 1,168 (110 ) 1,058
Bitsolar Energy Co., Ltd. 352 352
Pulau Indah O&M Sdn. Bhd.
Guadalupe Solar SpA 913 322 (35 ) 1,200
Omisan Wind Power Co., Ltd. 10,411 (182 ) 10,229
Foresight Iberian Solar Group Holding, S.L. 10,565 (2,034 ) (412 ) 8,119
Yeongwol Eco Wind Co., Ltd. 3,155 869 4,024
Gurae Resident Power Co., Ltd. 391 178 569
Cheongju Eco Park Co., Ltd. 10,490 (1,418 ) 9,072
Enel X Midland Photovoltaic, LLC 1,856 516 170 2,542
Geumsungsan Wind Power Co., Ltd. 3,493 2,022 5,515
KEPCO KPS CARABAO Corp. 177 (184 ) 7
Prime Swedish Holding AB 36,245 820 (236 ) 1,960 38,789
Goheung New Energy Co., Ltd. 11,832 3,904 15,736
Gunsan Land Solar Co., Ltd. 27,544 (5,115 ) 22,429
CapMan Lynx SCA, SICAR
International Offshore Power Transmission Holding Company Limited 338 1,085 1,423
Pyeongchang Wind Power Co., Ltd. 14,464 (870 ) (1,366 ) 12,228
Eumseong Eco Park Co., Ltd. 5,557 2,829 8,386
Songsan Green Energy Co., Ltd. 1,387 7,000 (25 ) (39 ) (8,323 )
Changwon Nu-ri Energy Co., Ltd. 497 7,595 (27 ) (38 ) 8,027
Hasami Wind Farm Corporation 1,589 (1,586 ) (3 )
PungBack Wind Farm Corporation 6,743 1,197 7,940
Trumbull Asset Management, LLC 246 1 693 (4 ) 936
S-Power Chile SpA 127 (70 ) 4 3 64
Seungmun Green Energy 9,054 703 9,757
Seobusambo highway photovoltaics Co., Ltd. 3,066 514 3,580

115

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(3) Changes in investments in associates and joint ventures for each of the two years in the period endedDecember 31, 2024 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2023
Investees Beginningbalance Acquisitions Disposals Dividendsreceived Share ofprofit<br>(loss) Othercomprehen-sive income(loss) Others Ending balance
Yangyang Suri Wind Power Co., Ltd. ~~W~~ 10,498 (890 ) 9,608
Kepco for Power Company 3,083 (2,109 ) 25 (564 ) 435
Taebaek Wind Power Co., Ltd. (2,820 ) 2,251 14,501 13,932
Jeonju Bio Green Energy Co., Ltd. 3,250 (55 ) 3,195
Kumyang Eco Park Co., Ltd. 3,663 3,663
Jeongeup Green Power Co., Ltd. 1,560 1,560
Hadong E-factory Co., Ltd. 350 (1 ) 349
Namyangju Combined Heat and Power Co., Ltd. 3,850 3,850
Wadi Noor Solar Power Company SAOC 847 (1 ) 846
Fairhaven Energy Storage LLC
3,147,584 123,143 (2,774 ) (106,801 ) 260,677 79,554 (15,684 ) 3,485,699
~~W~~ 8,992,048 545,252 (5,685 ) (592,813 ) 595,056 152,752 (24,022 ) 9,662,588

116

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Associates>
Korea Gas Corporation ~~W~~ 57,669,638 46,843,282 38,388,740 1,148,985
Korea Electric Power Industrial Development Co., Ltd. 213,423 109,367 361,690 14,587
Gangwon Wind Power Co., Ltd. 123,787 46,156 23,400 7,415
Hyundai Green Power Co., Ltd. 698,653 295,095 109,081 9,354
Korea Power Exchange 365,652 91,690 120,586 1,795
Taebaek Guinemi Wind Power Co., Ltd. 35,917 19,831 5,155 213
Daeryun Power Co., Ltd. 1,117,771 651,892 397,332 61,893
KNH Solar Co., Ltd. 8,110 93 2,671 2,359
SPC Power Corporation 301,805 18,716 72,191 35,657
Gemeng International Energy Co., Ltd. 8,301,632 5,803,020 2,907,291 (66,765 )
PT. Cirebon Electric Power 742,634 169,796 281,041 15,070
KNOC Nigerian East Oil Co., Ltd. 30,834 127,760 (31 )
KNOC Nigerian West Oil Co., Ltd. 33,230 122,351 (31 )
PT Wampu Electric Power 209,724 124,358 19,146 7,598
PT. Bayan Resources TBK 5,338,900 2,100,603 4,700,051 1,285,816
S-Power Co., Ltd. 739,732 369,429 734,607 35,889
Xe-Pian Xe-Namnoy Power Co., Ltd. 1,414,921 979,112 182,433 (81,032 )
PT. Mutiara Jawa 28,266 8,489 13,455 4,094
Noeul Green Energy Co., Ltd. 95,570 108,793 47,999 4,787
Goseong Green Power Co., Ltd. 5,129,641 4,125,053 1,310,775 2,823
Gangneung Eco Power Co., Ltd. 5,359,845 4,667,564 635,026 (10,547 )
Shin Pyeongtaek Power Co., Ltd. 1,052,048 678,140 841,818 58,855
Haeng Bok Do Si Photovoltaic Power Co., Ltd. 1,666 385 476 135
Dongducheon Dream Power Co., Ltd. 1,350,004 1,044,020 1,360,809 10,453
Jinbhuvish Power Generation Pvt. Ltd. 67,903 14,023
Daejung Offshore Wind Power Co., Ltd. 5,419 2,220 53
GS Donghae Electric Power Co., Ltd. 1,910,960 1,089,101 535,012 59,776
Daegu Photovoltaic Co., Ltd. 11,767 3,025 3,805 908
Busan Green Energy Co., Ltd. 142,943 134,894 66,924 (3,140 )
Hansuwon KNP Co., Ltd. 4,324 1,444 7,949 716
Korea Electric Power Corporation Fund 13,676 67 1,880 488
Energy Infra Asset Management Co., Ltd. 14,037 1,229 5,003 1,450
YaksuESS Co., Ltd. 5,295 4,738 749 (423 )
Nepal Water & Energy Development Company Private Limited 666,316 419,386 123,848 10,732
Gwangyang Green Energy Co., Ltd. 547,208 426,210 (2,105 )
PND solar Co., Ltd. 32,025 26,570 5,331 737
Hyundai Eco Energy Co., Ltd. 157,873 114,299 25,081 5,963
YeongGwang Yaksu Wind Electric Co., Ltd. 36,659 37,065 5,194 (953 )
Green Energy Electricity Generation Co., Ltd. 81,798 85,848 1,942 (1,392 )
Korea Energy Solutions Co., Ltd. 1,303 318 1,209 146
ITR Co., Ltd. 720 898 130 (510 )
STN Co., Ltd. 1,870 99 666 108
Indeck Niles Development, LLC 1,234,170 704,296 284,855 32,491
Indeck Niles Asset Management, LLC 211 32 1,157 1,120
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 12,665 178 722 689
Suwon New Power Co., Ltd. 15,427 13,338 5,072 (229 )
Gwangbaek Solar Power Investment Co., Ltd. 260,641 249,642 9,658 1,188
Go deok Clean Energy Co., Ltd. 130,520 117,267 49,187 1,465
SureDataLab Co., Ltd. 660 461 675 (291 )
SEP Co., Ltd. 45 118 (1 )
Hankook Electric Power Information Co., Ltd. 2,381 991 2,135 58
Tronix Co., Ltd. 4,824 3,659 2,578 42

117

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Associates>
O2&B Global Co., Ltd. ~~W~~ 453 485 149 (104 )
Muan Sunshine Solar Power Plant Co., Ltd. 128,131 116,742 16,246 2,552
Bigeum Resident Photovoltaic Power Co., Ltd. 441,227 412,276 10,812 (6,845 )
Goesan Solar Park Co., Ltd. 48,924 38,119 6,143 884
Saemangeum Heemang Photovoltaic Co., Ltd. 149,528 105,535 22,600 4,049
Bitgoel Eco Energy Co., Ltd. 79,709 51,776 28,110 6,064
Jeju Gimnyeong Wind Power Co., Ltd. 53,335 52,503 10,889 13
Seoroseoro Sunny Power Plant Co., Ltd. 6,680 4,309 1,035 208
Muan Solar park Co., Ltd. 188,303 158,595 27,641 5,152
YuDang Solar Co., Ltd. 18,321 15,238 3,506 589
Anjwa Smart Farm & Solar City Co., Ltd. 237,359 199,954 36,948 3,530
KPE Green Energy Co., Ltd. 135,307 103,023 41,289 2,131
G.GURU Co., Ltd. 273 133 103 (535 )
UD4M Co., Ltd. 1,076 227 1,142 (170 )
Dongbu Highway Solar Co., Ltd. 16,139 13,833 2,665 656
Seobu Highway Solar Co., Ltd. 16,323 13,428 2,737 863
Korea Energy Data Co., Ltd. 212 134 167 (104 )
Gangneung Sacheon Fuel Cell Co., Ltd. 148,460 125,975 45,534 5,768
Taebaek Gadeoksan Wind Power Co., Ltd. 187,927 120,551 32,534 15,536
Chuncheon Green Energy Co., Ltd. 234,506 195,354 68,010 11,494
Yeomsubong Wind Power Co., Ltd. 45,468 44,236 (924 )
Yeongyang Wind Power Corporation II 136,360 105,721 18,376 4,005
Haeparang Energy Co., Ltd. 63,749 56,030 758 (620 )
Saemangeum Sebit Power Plant Co., Ltd. 160,225 93,086 20,376 (147 )
PlatformN. Co., Ltd. 162 223 430 139
PT. Cirebon Energi Prasarana 3,831,992 2,863,534 543,340 60,512
Green Radiation Co., Ltd. 521 663 613 (272 )
Future Convergence Technology Laboratory. Co., Ltd. 384 277 (83 )
Eco Motion Co., Ltd. 1,830 684 350 82
REC’s Innovation Co., Ltd. 2,921 1,518 1,010 232
ACE 359 308 27 14
Environment and Energy Co., Ltd. 31 (36 )
Santiago Solar Power SpA 85,063 71,139 4,862 (9,488 )
Yanggu Floating Photovoltaic Power Plant Inc. 15,300 12,382 2,259 210
Power Embedded 400 112 (7 )
Changwon SG Energy Co., Ltd. 4,878 1,328 3,342 (539 )
Donpyung Technology. Co., Ltd. 2,205 673 2,317 135
HORANG ENERGY Inc. 94,637 85,678 (947 )
Hoenggye Renewable Energy Co., Ltd 43,206 43,942 (62 )
Haman Green Energy Co., Ltd. 122,937 114,908 (1,165 )
Songsan Green Energy Co., Ltd. 120,001 106,939 121 (692 )
SkyPic Inc. 167 37 3 (7 )
HyChangwon Fuel Cell. Co., Ltd. 114,580 91,679 (309 )
Dreams Co.,Ltd. 233 183 208 (49 )
DEEPAI Co.,Ltd. 813 449 240 (319 )
Amaala Sustainable Company for Energy LLC 697,354 697,158
<Joint ventures>
Shuweihat Asia Power Investment B.V. 176,569 137 (370 )
Shuweihat Asia Operation & Maintenance Company 4,215 328 3,574 2,293
Waterbury Lake Uranium L.P. 80,803 761
ASM-BG Investicii AD 68,437 34,565 12,815 2,824
RES Technology AD 57,356 27,219 7,395 (292 )
KV Holdings, Inc. 17,304 1 1,778 1,799
KEPCO SPC Power Corporation 291,538 26,307 190,296 28,108
Gansu Datang Yumen Wind Power Co., Ltd. 63,240 43,443 10,721 944
Datang Chifeng Renewable Power Co., Ltd. 900,001 388,711 115,297 17,722

118

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Joint ventures>
Datang KEPCO Chaoyang Renewable Power Co., Ltd. ~~W~~ 180,827 60,016 26,678 2,031
Rabigh Electricity Company 2,651,843 1,873,439 353,677 63,270
Rabigh Operation & Maintenance Company Limited 40,983 20,205 30,841 5,840
Jamaica Public Service Company Limited 2,649,022 1,656,068 1,490,606 76,611
KW Nuclear Components Co., Ltd. 47,498 5,423 6,919 2,510
Busan Shinho Solar Power Co., Ltd. 28,837 865 8,452 3,963
Global Trade Of Power System Co., Ltd. 2,976 574 3,635 290
Expressway Solar-light Power Generation Co., Ltd. 11,709 168 3,219 1,214
Amman Asia Electric Power Company 791,478 343,371 22,776 34,047
KAPES, Inc. 299,380 257,858 43,699 6,224
Honam Wind Power Co., Ltd. 29,174 12,618 6,508 1,810
Korea Power Engineering Service Co., Ltd. 22,701 1,828 12,983 1,444
Chun-cheon Energy Co., Ltd. 533,211 409,989 430,679 4,890
Yeonggwangbaeksu Wind Power Co., Ltd. 69,249 44,422 12,636 2,156
Nghi Son 2 Power LLC 4,412,970 3,286,814 921,504 91,777
Kelar S.A. 715,489 486,293 112,110 9,733
PT. Tanjung Power Indonesia 754,514 467,144 106,081 17,705
Incheon New Power Co., Ltd. 1,267 227 2,777 36
Seokmun Energy Co., Ltd. 192,083 138,787 51,233 (4,558 )
Daehan Wind Power PSC 173,637 130,982 18,496 3,584
Barakah One Company 43,235,235 45,056,439 1,636,730 (53,778 )
Nawah Energy Company 701,247 699,068 566,077 40
MOMENTUM 7,422 6,836 22,770 586
Daegu Green Power Co., Ltd. 493,595 399,918 338,750 7,344
Yeonggwang Wind Power Co., Ltd. 217,987 162,218 32,114 7,971
Chester Solar IV SpA 12,649 12,309 1,941 (676 )
Chester Solar V SpA 4,260 4,321 631 (176 )
Diego de Almagro Solar SpA 16,301 15,161 2,625 (667 )
South Jamaica Power Company Limited 532,323 288,501 250,519 14,460
Daesan Green Energy Co., Ltd. 225,765 153,391 110,002 5,960
RE Holiday Holdings LLC 363,750 184,188 20,251 (1,413 )
RE Pioneer Holdings LLC 272,900 161,657 13,343 (3,168 )
RE Barren Ridge 1 Holdings LLC 224,922 105,310 12,905 (1,301 )
RE Astoria 2 LandCo LLC 16,514 276 1,060 848
RE Barren Ridge LandCo LLC 5,826 110 411 342
Laurel SpA 10,897 10,471 1,522 (557 )
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd 33,736 150 70
Cheong-Song Noraesan Wind Power Co., Ltd. 53,374 38,705 6,788 1,599
Chester Solar I SpA 12,935 11,454 1,395 (745 )
Solar Philippines Calatagan Corporation 166,126 37,872 19,412 8,733
Saemangeum Solar Power Co., Ltd. 34,377 5,643 (176 )
Chungsongmeon BongSan wind power Co., Ltd. 86,708 83,921 (399 )
Jaeun Resident Wind Power Plant Co., Ltd. 95,657 88,605 (380 )
DE Energia SpA 32,263 24,853 3,163
Dangjin Eco Power Co., Ltd. 90,750 12,732 3,645 743
Haemodum Solar Co., Ltd. 21,036 14,444 2,060 232
Yangyang Wind Power Co., Ltd. 146,697 123,504 11,948 2,334
HORUS SOLAR, S.A. DE C.V. 170,018 184,014 35,080 (43,774 )
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. 238,276 223,019 19,178 (37,720 )
SUNMEX RENOVABLES, S.A. DE C.V. 182,159 170,906 (15,771 )
Stavro Holding II A.B. 82,407 114 (11,632 )
Solaseado Solar Power Co., Ltd. 347,831 292,737 46,361 12,443
Yeongam Solar Power Co., Ltd. 318,641 260,459 34,509 10,880
Samsu Wind Power Co., Ltd. 61,678 46,675 7,051 682
Pulau Indah Power Plant Sdn. Bhd. 1,054,236 873,923 40,818 (2,896 )
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 52,533 271 3,054 (23,354 )

119

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2024
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Joint ventures>
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream ~~W~~ 17,251 33 227 182
PT Barito Wahana Tenaga 678,043 74,744
Cheongna Energy Co., Ltd. 463,574 375,343 142,400 41,124
Naepo Green Energy Co., Ltd. 738,857 586,152 467,225 124,830
Boim Combined Heat and Power Generation Co., Ltd. 421,954 480,084 139,134 294
OneEnergy Asia Limited 3,237,191 2,137,600 424,036 100,781
KAS INVESTMENT I LLC 20,361 28 (40,343 ) (43,213 )
KAS INVESTMENT II LLC 20,233 28 (40,189 ) (43,048 )
Energyco Co., Ltd. 50,310 45,161 6,221 629
CAES, LLC 49,267 946
Hapcheon Floating Photovoltaic Power Plant Inc. 76,903 53,853 12,361 3,992
Busan Industrial Solar Power Co., Ltd. 18,236 15,133 2,262 191
Bitsolar Energy Co., Ltd. 68,249 74,213 8,300 (390 )
Pulau Indah O&M Sdn. Bhd. 1 2 24
Guadalupe Solar SpA 10,477 9,339 1,408 (574 )
Omisan Wind Power Co., Ltd. 180,001 154,541 4,785 1,480
Foresight Iberian Solar Group Holding, S.L. 187,118 194,881 3,262 (13,206 )
Yeongwol Eco Wind Co., Ltd. 99,288 102,522 7,118 (5,518 )
Gurae Resident Power Co., Ltd. 12,845 11,861 1,490 (101 )
Cheongju Eco Park Co., Ltd. 145,162 109,158 37,392 2,415
Enel X Midland Photovoltaic, LLC 13,694 119 2,470 865
Geumsungsan Wind Power Co., Ltd. 143,725 118,608 21,048 7,349
KEPCO KPS CARABAO Corp. 226 835 (513 )
Prime Swedish Holding AB 143,102 62,354 8,911 (8,404 )
Goheung New Energy Co., Ltd. 174,255 142,437 28,059 2,190
Gunsan Land Solar Co., Ltd. 144,887 104,284 22,154 4,939
CapMan Lynx SCA, SICAR 3,319 134,790 (4,808 )
International Offshore Power Transmission Holding Company Limited 33,191 1,650 (213 )
Pyeongchang Wind Power Co., Ltd. 55,697 34,754 9,261 (536 )
Eumseong Eco Park Co., Ltd. 149,904 111,846 45,239 9,512
Changwon Nu-ri Energy Co., Ltd. 71,179 58,630 333 (606 )
PungBack Wind Farm Corporation 148,157 130,116 (536 )
Trumbull Asset Management, LLC 2,572 910 4,501 486
S-Power Chile SpA 2,779 2,778 1,369 108
Seungmun Green Energy 142,213 103,593 46,712 9,026
Seobusambo highway photovoltaics Co., Ltd. 10,245 6,108 1,214 26
Yangyang Suri Wind Power Co., Ltd. 210,853 181,052 (5,391 )
KEPCO for Power Company 644,110 614,267 (1,058 )
Taebaek Wind Power Co., Ltd. 28,067 3,468 6,431 2,169
Jeonju Bio Green Energy Co., Ltd. 4,130 181 (967 )
Kumyang Eco Park Co., Ltd. 125,961 112,910 3,169 615
Jeongeup Green Power Co., Ltd. 22,939 6,960 (2,767 )
Hadong E-factory Co., Ltd. 2,331 1,204 (17 )
Namyangju Combined Heat and Power Co., Ltd. 75,474 1,899 (2,410 )
Samcheok Eco Materials Co., Ltd. 21,109 1,981 3,352 (1,357 )
Wadi Noor Solar Power Company SAOC 492,407 481,139 (1,477 )
Fairhaven Energy Storage LLC 2,071 82 (14 )
Rutile BESS Holdings, LLC 7,353 7,350 (211 )
Trumbull Development Partners, LLC 1,582,082 1,042,712 14,174
Imha Floating Photovoltaic Power Plant Inc. 36,412 23,546 (1,679 )
EDFR KOWEPO AJBAN PV HOLDING LIMITED 37,776 37,606 (143 )
Roof One Energy Co., Ltd. 9,305 5,209 (46 )

120

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Associates>
Korea Gas Corporation ~~W~~ 57,254,666 47,428,628 44,555,995 (747,428 )
Korea Electric Power Industrial Development Co., Ltd. 174,788 73,065 354,850 21,170
YTN Co., Ltd. 352,188 108,108 130,450 (3,616 )
Gangwon Wind Power Co., Ltd. 83,062 3,380 32,525 14,098
Hyundai Green Power Co., Ltd. 738,107 330,616 107,367 7,446
Korea Power Exchange 366,092 91,806 119,182 4,443
Taebaek Guinemi Wind Power Co., Ltd. 42,243 26,200 5,529 716
Daeryun Power Co., Ltd. 1,120,453 716,752 451,527 4,043
KNH Solar Co., Ltd. 12,142 314 3,535 1,394
SPC Power Corporation 287,249 28,485 106,926 27,946
Gemeng International Energy Co., Ltd. 7,507,274 5,189,729 2,963,614 33,580
PT. Cirebon Electric Power 665,365 177,150 265,054 27,341
KNOC Nigerian East Oil Co., Ltd. 27,029 112,017 (50 )
KNOC Nigerian West Oil Co., Ltd. 29,157 107,300 (50 )
PT Wampu Electric Power 206,943 131,823 20,155 (582 )
PT. Bayan Resources TBK 4,447,335 2,018,870 4,675,174 1,670,522
S-Power Co., Ltd. 762,398 427,807 1,012,050 44,730
Pioneer Gas Power Limited 274,693 532,005 551 (49,745 )
Xe-Pian Xe-Namnoy Power Co., Ltd. 1,370,110 900,713 171,978 (5,674 )
PT. Mutiara Jawa 27,296 9,474 16,160 7,999
Samcheok Eco Materials Co., Ltd. 22,544 39,895 8,028 (1,776 )
Noeul Green Energy Co., Ltd. 89,861 107,834 24,017 920
Goseong Green Power Co., Ltd. 5,374,233 4,372,531 1,580,545 152
Gangneung Eco Power Co., Ltd. 5,381,984 4,665,083 1,419,436 (7,388 )
Shin Pyeongtaek Power Co., Ltd. 1,222,968 832,633 1,040,219 201,635
Haeng Bok Do Si Photovoltaic Power Co., Ltd. 1,618 573 575 82
Dongducheon Dream Power Co., Ltd. 1,337,529 1,042,681 1,744,247 (8,608 )
Jinbhuvish Power Generation Pvt. Ltd. 61,227 12,644
Daejung Offshore Wind Power Co., Ltd. 5,277 2,094 (145 )
GS Donghae Electric Power Co., Ltd. 1,932,098 1,170,085 876,826 62,471
Daegu Photovoltaic Co., Ltd. 14,140 4,471 4,225 1,772
Busan Green Energy Co., Ltd. 160,299 149,060 69,108 (3,920 )
Hansuwon KNP Co., Ltd. 3,063 899 7,618 645
Korea Electric Power Corporation Fund 23,981 108 332 (2,921 )
Energy Infra Asset Management Co., Ltd. 13,628 1,371 5,130 1,254
Daegu clean Energy Co., Ltd. 368 324 (1 )
YaksuESS Co., Ltd. 5,697 4,717 508 (691 )
Nepal Water & Energy Development Company Private Limited 327,057 167,792 82,720 (3,186 )
Gwangyang Green Energy Co., Ltd. 370,778 247,675 (2,034 )
PND solar Co., Ltd. 34,804 30,127 5,413 373
Hyundai Eco Energy Co., Ltd. 169,180 128,481 26,266 7,206
YeongGwang Yaksu Wind Electric Co., Ltd. 38,720 38,173 5,593 (241 )
Green Energy Electricity Generation Co., Ltd. 69,667 72,325 948 (5,392 )
Korea Energy Solutions Co., Ltd. 1,151 303 643 87
ITR Co., Ltd. 480 490 144 (234 )
STN Co., Ltd. (formerly, Structure test network Co., Ltd.) 1,818 127 771 178
Indeck Niles Development, LLC 1,157,838 675,638 318,392 64,813
Indeck Niles Asset Management, LLC 307 29 1,081 1,001
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 13,444 186 820 747
Suwon New Power Co., Ltd. 3,448 1,130 2,318 341
Gwangbaek Solar Power Investment Co., Ltd. 287,838 276,840 11,267 1,513
Go deok Clean Energy Co., Ltd. 139,352 127,545 22,671 2,426
SureDataLab Co., Ltd. 890 416 548 (263 )
SEP Co., Ltd. 45 117 (7 )

121

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Associates>
Hankook Electric Power Information Co., Ltd. ~~W~~ 2,270 974 1,672 223
Tronix Co., Ltd. 4,564 2,807 2,718 578
O2&B Global Co., Ltd. 369 264 242 (73 )
Muan Sunshine Solar Power Plant Co., Ltd. 136,382 124,745 16,360 2,999
Bigeum Resident Photovoltaic Power Co., Ltd. 303,462 309,185 (3,031 )
Goesan Solar Park Co., Ltd. 50,659 40,738 6,530 985
Saemangeum Heemang Photovoltaic Co., Ltd. 152,496 113,407 23,448 4,063
Bitgoel Eco Energy Co., Ltd. 85,571 60,302 29,907 7,019
Jeju Gimnyeong Wind Power Co., Ltd. 56,906 56,087 9,261 (2,088 )
Seoroseoro Sunny Power Plant Co., Ltd. 6,813 4,650 1,039 193
Muan Solar park Co., Ltd. 204,168 171,642 31,532 8,648
YuDang Solar Co., Ltd. 20,566 17,717 3,483 420
Anjwa Smart Farm & Solar City Co., Ltd. 258,076 223,831 37,742 3,119
KPE Green Energy Co., Ltd.<br>(formerly, Daewon Green Energy Co., Ltd.) 143,157 112,651 58,423 13,407
G.GURU Co., Ltd. 818 142 162 (540 )
UD4M Co., Ltd. 1,242 194 1,066 (59 )
Dongbu Highway Solar Co., Ltd. 16,563 14,913 2,580 140
Seobu Highway Solar Co., Ltd. 16,739 14,707 2,646 451
Korea Energy Data Co., Ltd. 313 191 348 (87 )
Gangneung Sacheon Fuel Cell Co., Ltd. 138,761 119,779 23,523 9,191
KOSTURE Co., Ltd. 196 22 208 16
Taebaek Gadeoksan Wind Power Co., Ltd. 196,810 139,675 35,000 13,138
Chuncheon Green Energy Co., Ltd. 217,335 197,676 6,052 (497 )
Yeomsubong Wind Power Co., Ltd. 32,742 30,586 (1,753 )
Yeongyang Wind Power Corporation II 133,053 106,419 15,190 8,797
Haeparang Energy Co., Ltd. 40,698 32,359 (335 )
Saemangeum Sebit Power Plant Co., Ltd. 165,283 97,997 22,663 (812 )
Boulder Solar III, LLC 1,929
PlatformN. Co., Ltd. 184 394 404 (566 )
PT. Cirebon Energi Prasarana 3,372,539 2,606,566 434,806 73,285
Green Radiation Co., Ltd. 1,038 812 298 100
Future Convergence Technology Laboratory. Co., Ltd. 479 302 (70 )
Eco Motion Co., Ltd. (formerly, SC E&G. Co,. Ltd.) 1,664 329 633 372
REC’s Innovation Co., Ltd.<br>(formerly, Wang San Engineering. Co,. Ltd.) 1,801 1,081 856
ACE 385 348 53 (30 )
Environment and Energy Co., Ltd. 89 (4 )
Santiago Solar Power SpA 88,687 65,149 (2,994 )
Yanggu Floating Photovoltaic Power Plant Inc. 17,092 14,470 135 (495 )
Power Embedded 298 2 (2 )
Changwon SG Energy Co., Ltd. 5,738 1,649 436 (703 )
Donpyung Technology. Co., Ltd. 2,039 643 1,664 93
HORANG ENERGY Inc. 64,736 54,923 (389 )
Hoenggye Renewable Energy Co., Ltd 24,702 25,730 (4,864 )
Haman Green Energy Co., Ltd. 40,801 32,285 (5,116 )
Songsan Green Energy Co., Ltd. 46,016 32,262 (100 )
<Joint ventures>
Shuweihat Asia Power Investment B.V. 142,680 20 897
Shuweihat Asia Operation & Maintenance Company 4,421 1,116 3,194 2,249
Waterbury Lake Uranium L.P. 74,320 550
ASM-BG Investicii AD 68,837 39,359 10,931 1,359
RES Technology AD 58,152 29,387 5,969 (1,027 )
KV Holdings, Inc. 12,968 2 20 367
KEPCO SPC Power Corporation 288,140 26,778 222,773 17,270
Gansu Datang Yumen Wind Power Co., Ltd. 61,657 45,869 10,684 791
Datang Chifeng Renewable Power Co., Ltd. 812,124 345,277 117,833 25,055

122

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Joint ventures>
Datang KEPCO Chaoyang Renewable Power Co., Ltd. ~~W~~ 166,959 58,942 23,638 1,597
Rabigh Electricity Company 2,556,848 1,855,234 304,727 51,539
Rabigh Operation & Maintenance Company Limited 40,339 27,928 31,301 6,676
Jamaica Public Service Company Limited 2,332,019 1,491,199 1,400,582 87,307
KW Nuclear Components Co., Ltd. 42,363 460 14,344 5,386
Busan Shinho Solar Power Co., Ltd. 31,863 5,188 9,197 4,473
Global Trade Of Power System Co., Ltd. 2,398 277 2,044 (229 )
Expressway Solar-light Power Generation Co., Ltd. 13,065 2,691 3,397 892
Amman Asia Electric Power Company 719,388 347,015 21,772 33,811
KAPES, Inc. 203,066 165,475 32,294 2,150
Honam Wind Power Co., Ltd. 31,183 14,938 6,570 1,540
Korea Power Engineering Service Co., Ltd. 21,534 1,853 11,248 1,203
Chun-cheon Energy Co., Ltd. 565,972 447,820 502,889 10,435
Yeonggwangbaeksu Wind Power Co., Ltd. 73,854 50,936 13,523 1,944
Nghi Son 2 Power LLC 3,775,717 2,939,740 825,701 33,505
Kelar S.A. 691,104 493,325 112,201 12,488
PT. Tanjung Power Indonesia 704,274 446,700 111,138 21,854
Incheon New Power Co., Ltd. 1,404 377 3,781 485
Seokmun Energy Co., Ltd. 201,776 144,565 54,575 (1,581 )
Daehan Wind Power PSC 144,260 111,407 17,880 4,951
Barakah One Company 35,586,640 36,901,367 1,243,735 (230,503 )
Nawah Energy Company 569,982 568,147 555,338 34
MOMENTUM 13,449 12,821 23,160 624
Daegu Green Power Co., Ltd. 515,354 429,204 380,130 (5,146 )
Yeonggwang Wind Power Co., Ltd. 225,286 175,530 36,326 11,672
Chester Solar IV SpA 12,435 11,504 2,119 395
Chester Solar V SpA 4,124 4,002 696 141
Diego de Almagro Solar SpA 15,785 13,907 3,114 931
South Jamaica Power Company Limited 482,866 267,307 240,664 18,833
Daesan Green Energy Co., Ltd. 237,663 174,261 111,225 11,480
RE Holiday Holdings LLC 340,773 172,589 21,178 664
RE Pioneer Holdings LLC 257,091 148,929 14,136 (2,164 )
RE Barren Ridge 1 Holdings LLC 213,491 97,184 11,915 (1,979 )
RE Astoria 2 LandCo LLC 14,116 242 1,014 823
RE Barren Ridge LandCo LLC 4,980 97 393 329
Laurel SpA 10,665 9,768 1,646 169
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd 30,081 84 (182 )
Cheong-Song Noraesan Wind Power Co., Ltd. 54,086 41,352 6,780 1,240
Chester Solar I SpA 12,846 10,712 1,620 214
Solar Philippines Calatagan Corporation 146,304 37,922 16,420 9,121
Saemangeum Solar Power Co., Ltd. 34,905 5,994 (162 )
Chungsongmeon BongSan wind power Co., Ltd. 83,147 80,102 (925 )
Jaeun Resident Wind Power Plant Co., Ltd. 95,529 87,893 181 (80 )
DE Energia SpA 28,017 21,416 5,006 21,118
Dangjin Eco Power Co., Ltd. 96,980 19,299 3,789 589
Haemodum Solar Co., Ltd. 21,612 15,241 2,216 299
Yangyang Wind Power Co., Ltd. 124,550 103,766 211 (858 )
HORUS SOLAR, S.A. DE C.V. 210,868 160,006 20,586 26,865
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. 239,548 180,912 4,920 24,984
SUNMEX RENOVABLES, S.A. DE C.V. 156,696 133,032 6,232
Stavro Holding II A.B. 91,342 28 (87 )
Solaseado Solar Power Co., Ltd. 346,793 304,142 39,907 4,823
Yeongam Solar Power Co., Ltd. 326,429 279,779 35,280 4,506
Samsu Wind Power Co., Ltd. 67,150 51,247 8,751 1,741
Pulau Indah Power Plant Sdn. Bhd. 800,300 720,459 431 2,095
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 72,465 97 7,569 7,080

123

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(4) The summarized financial information of associates and joint ventures as of and for each of the two years inthe period ended December 31, 2024 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- ---
As of and for the year ended December 31,2023
Investees Total assets Total liabilities Sales Profit (loss) for<br>the year
<Joint ventures>
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream ~~W~~ 17,230 22 38 (3 )
PT Barito Wahana Tenaga 512,846 72,320
Cheongna Energy Co., Ltd. 428,042 380,935 119,530 29,511
Naepo Green Energy Co., Ltd. 695,684 677,583 312,592 53,343
Boim Combined Heat and Power Generation Co., Ltd. (formerly, Dayone Energy Co., Ltd.) 441,975 498,353 212,997 5,544
OneEnergy Asia Limited 2,181,165 1,520,032 1,149,944 94,298
KAS INVESTMENT I LLC 52,806 (7,436 ) (7,437 )
KAS INVESTMENT II LLC 52,555 1 (7,444 ) (7,445 )
Energyco Co., Ltd. 54,336 49,816 6,599 (173 )
CAES, LLC 48,495 5 (2,388 )
Hapcheon Floating Photovoltaic Power Plant Inc. 79,924 58,887 12,679 4,266
Busan Industrial Solar Power Co., Ltd. 18,636 15,896 2,378 106
Bitsolar Energy Co., Ltd. 73,435 79,367 8,249 (1,125 )
Pulau Indah O&M Sdn. Bhd.
Guadalupe Solar SpA 10,646 8,811 1,684 626
Omisan Wind Power Co., Ltd. 150,813 126,853 (453 )
Foresight Iberian Solar Group Holding, S.L. 94,972 86,049 (2,712 )
Yeongwol Eco Wind Co., Ltd. 109,716 102,143 3,561 2,975
Gurae Resident Power Co., Ltd. 14,096 12,299 652 615
Cheongju Eco Park Co., Ltd. 145,956 115,347 38,907 (4,892 )
Enel X Midland Photovoltaic, LLC 12,825 115 2,128 850
Geumsungsan Wind Power Co., Ltd. 142,703 125,602 13,568 6,570
KEPCO KPS CARABAO Corp. 375 468 (467 )
Prime Swedish Holding AB 83,699 218 (524 )
Goheung New Energy Co., Ltd. 177,924 146,175 29,246 8,460
Gunsan Land Solar Co., Ltd. 144,435 108,848 23,523 (974 )
CapMan Lynx SCA, SICAR 139,262 132,430 1,427 (12,401 )
International Offshore Power Transmission Holding Company Limited 6,555 2,486 (195 )
Pyeongchang Wind Power Co., Ltd. 60,535 39,452 9,361 (2,354 )
Eumseong Eco Park Co., Ltd. 153,927 126,998 46,679 5,609
Changwon Nu-ri Energy Co., Ltd. 13,183 29 (44 )
PungBack Wind Farm Corporation 70,330 51,804 (255 )
Trumbull Asset Management, LLC 1,697 497 5,955 887
S-Power Chile SpA 2,240 2,390 1,327 (139 )
Seungmun Green Energy 144,600 115,034 10,879 2,127
Seobusambo highway photovoltaics Co., Ltd. 9,838 5,362 1,051 624
Yangyang Suri Wind Power Co., Ltd. 111,682 78,552 (3,069 )
KEPCO for Power Company 235,212 234,487 (3,610 )
Taebaek Wind Power Co., Ltd. 26,606 3,385 7,384 3,752
Jeonju Bio Green Energy Co., Ltd. 4,916 (84 )
Kumyang Eco Park Co., Ltd. 13,831 1,395 (71 )
Jeongeup Green Power Co., Ltd. 11,243 5,462 (1,343 )
Hadong E-factory Co., Ltd. 1,544 399 (13 )
Namyangju Combined Heat and Power Co., Ltd. 7,000
Wadi Noor Solar Power Company SAOC 70,963 69,288
Fairhaven Energy Storage LLC

124

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Book<br>value
<Associates>
Korea Gas Corporation ~~W~~ 10,826,356 21.66 % 2,344,989 (55,685 ) 2,289,304
Korea Electric Power Industrial Development Co., Ltd. 104,056 29.00 % 30,177 30,177
Gangwon Wind Power Co., Ltd. 77,631 15.00 % 11,644 49 11,693
Hyundai Green Power Co., Ltd. 403,558 29.00 % 117,033 (29,640 ) 87,393
Korea Power Exchange 273,962 100.00 % 273,962 273,962
Taebaek Guinemi Wind Power Co., Ltd. 16,086 67.25 % 10,818 2,741 13,559
Daeryun Power Co., Ltd. 465,879 6.85 % 31,913 (820 ) 31,093
KNH Solar Co., Ltd. 8,017 27.00 % 2,165 2,165
SPC Power Corporation 283,089 38.00 % 107,574 107,574
Gemeng International Energy Co., Ltd. 2,498,612 42.00 % 1,049,417 (321,079 ) 728,338
PT. Cirebon Electric Power 572,838 27.50 % 157,530 157,530
KNOC Nigerian East Oil Co., Ltd. (96,926 ) 14.63 % (14,180 ) 14,180
KNOC Nigerian West Oil Co., Ltd. (89,121 ) 14.63 % (13,038 ) 13,038
PT Wampu Electric Power 85,366 46.00 % 39,268 39,268
PT. Bayan Resources TBK 3,238,297 20.00 % 647,659 146,097 (76,380 ) 717,376
S-Power Co., Ltd. 370,303 49.00 % 181,448 (1,076 ) 180,372
Xe-Pian Xe-Namnoy Power Co., Ltd. 435,809 25.00 % 108,953 305 (946 ) (35,247 ) 73,065
PT. Mutiara Jawa 19,777 29.00 % 5,735 5,735
Noeul Green Energy Co., Ltd. (13,223 ) 29.00 % (3,835 ) 3,835
Goseong Green Power Co., Ltd. 1,004,588 29.00 % 291,331 (6,789 ) 284,542
Gangneung Eco Power Co., Ltd. 692,281 29.00 % 200,761 46,872 (5,819 ) 241,814
Shin Pyeongtaek Power Co., Ltd. 373,908 40.00 % 149,563 3,559 (14,064 ) 1 139,059
Haeng Bok Do Si Photovoltaic Power Co., Ltd. 1,281 28.00 % 359 1 360
Dongducheon Dream Power Co., Ltd. 305,984 34.01 % 104,065 1,757 (1,889 ) (12,582 ) 91,351
Jinbhuvish Power Generation Pvt. Ltd. 53,880 5.16 % 2,780 (2,780 )
Daejung Offshore Wind Power Co., Ltd. 3,199 46.59 % 1,490 1,490
GS Donghae Electric Power Co., Ltd. 821,859 34.00 % 279,432 279,432
Daegu Photovoltaic Co., Ltd. 8,742 29.00 % 2,535 2,535
Busan Green Energy Co., Ltd. 8,049 29.00 % 2,334 2,334
Hansuwon KNP Co., Ltd. 2,880 28.98 % 835 (161 ) 674
Korea Electric Power Corporation Fund 13,609 98.09 % 13,349 4 13,353
Energy Infra Asset Management Co., Ltd. 12,808 9.90 % 1,268 1,268
YaksuESS Co., Ltd. 557 29.00 % 161 1 162
Nepal Water & Energy Development Company Private Limited 246,930 68.88 % 170,083 872 170,955
Gwangyang Green Energy Co., Ltd. 120,998 20.00 % 24,199 18 24,217
PND solar Co., Ltd. 5,455 29.00 % 1,582 154 (1 ) 1,735
Hyundai Eco Energy Co., Ltd. 43,574 19.00 % 8,279 214 8,493
YeongGwang Yaksu Wind Electric Co., Ltd. (406 ) 9.63 % (39 ) 300 (220 ) 41
Green Energy Electricity Generation Co., Ltd. (4,050 ) 29.00 % (1,175 ) 779 396
Korea Energy Solutions Co., Ltd. 985 20.00 % 197 197
ITR Co., Ltd. (178 ) 8.70 % (15 ) 15
STN Co., Ltd. 1,771 20.00 % 354 53 407
Indeck Niles Development, LLC 529,874 50.00 % 264,936 101,361 4,673 370,970
Indeck Niles Asset Management, LLC 179 33.33 % 60 60
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 12,487 49.00 % 6,119 6,119

125

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Book<br>value
<Associates>
Suwon New Power Co., Ltd. ~~W~~ 2,089 30.15 % 630 284 914
Gwangbaek Solar Power Investment Co., Ltd. 10,999 44.00 % 4,839 316 5,155
Go deok Clean Energy Co., Ltd. 13,253 40.00 % 5,301 5,301
SureDataLab Co., Ltd. 199 23.95 % 48 48
SEP Co., Ltd. (73 ) 21.26 % (15 ) 15
Hankook Electric Power Information Co., Ltd. 1,390 16.16 % 225 (13 ) 212
Tronix Co., Ltd. 1,165 12.50 % 146 146
O2&B Global Co., Ltd. (32 ) 20.00 % (6 ) 6
Muan Sunshine Solar Power Plant Co., Ltd. 11,389 20.00 % 2,278 494 2,772
Bigeum Resident Photovoltaic Power Co., Ltd. 28,951 27.31 % 7,908 7,908
Goesan Solar Park Co., Ltd. 10,805 29.00 % 3,133 3,133
Saemangeum Heemang Photovoltaic Co., Ltd. 43,993 35.00 % 15,398 739 16,137
Bitgoel Eco Energy Co., Ltd. 27,933 49.05 % 13,701 13,701
Jeju Gimnyeong Wind Power Co., Ltd. 832 30.00 % 250 250
Seoroseoro Sunny Power Plant Co., Ltd. 2,371 42.58 % 1,010 20 1,030
Muan Solar park Co., Ltd. 29,708 20.00 % 5,942 325 6,267
YuDang Solar Co., Ltd. 3,083 20.00 % 617 617
Anjwa Smart Farm & Solar City Co., Ltd. 37,405 20.00 % 7,482 816 8,298
KPE Green Energy Co., Ltd. 32,284 25.36 % 8,186 44 8,230
G.GURU Co., Ltd. 140 24.65 % 34 34
UD4M Co., Ltd. 849 14.29 % 121 121
Dongbu Highway Solar Co., Ltd. 2,306 20.00 % 462 50 512
Seobu Highway Solar Co., Ltd. 2,895 20.00 % 579 579
Korea Energy Data Co., Ltd. 78 29.37 % 23 23
Gangneung Sacheon Fuel Cell Co., Ltd. 22,485 41.00 % 9,219 87 9,306
Taebaek Gadeoksan Wind Power Co., Ltd. 67,376 34.00 % 22,909 22,909
Chuncheon Green Energy Co., Ltd. 39,152 45.00 % 17,619 53 17,672
Yeomsubong Wind Power Co., Ltd. 1,232 29.00 % 357 246 603
Yeongyang Wind Power Corporation II 30,639 30.00 % 9,191 2,110 11,301
Haeparang Energy Co., Ltd. 7,719 25.00 % 1,930 20 1,950
Saemangeum Sebit Power Plant Co., Ltd. 67,139 55.00 % 36,928 182 37,110
PlatformN. Co., Ltd. (61 ) 29.58 % (18 ) 18
PT. Cirebon Energi Prasarana 968,458 10.00 % 96,846 96,846
Green Radiation Co., Ltd. (142 ) 10.00 % (14 ) 3 11
Future Convergence Technology Laboratory. Co., Ltd. 107 20.12 % 22 22
Eco motion Co., Ltd. 1,146 20.00 % 229 229
REC’s Innovation Co., Ltd. 1,403 11.04 % 155 155
ACE 51 20.00 % 10 (5 ) 5
Environment and Energy Co., Ltd. 31 10.54 % 3 3
Santiago Solar Power SpA 13,924 50.00 % 6,961 6,961
Yanggu Floating Photovoltaic Power Plant Inc. 2,918 29.00 % 846 846
Power Embedded 288 23.33 % 67 1 68
Changwon SG Energy Co., Ltd. 3,550 18.78 % 667 15 682
Donpyung Technology. Co., Ltd. 1,532 20.00 % 306 (25 ) 281
HORANG ENERGY Inc. 8,959 40.00 % 3,584 224 3,808
Hoenggye Renewable Energy Co., Ltd (736 ) 36.12 % (266 ) 2,375 266 2,375
Haman Green Energy Co., Ltd. 8,029 35.00 % 2,810 2,810
Songsan Green Energy Co., Ltd. 13,062 60.00 % 7,837 71 7,908
SkyPic Inc. 130 20.00 % 26 26
HyChangwon Fuel Cell. Co., Ltd. 22,901 40.00 % 9,161 117 9,278
Dreams Co.,Ltd. 50 11.00 % 6 5 11
DEEPAI Co.,Ltd. 364 1.32 % 5 6 11
Amaala Sustainable Company for Energy LLC 196 10.00 % 20 (2 ) 18

126

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
For the year ended December 31,2024
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Book<br>value
<Joint ventures>
Shuweihat Asia Power Investment B.V. ~~W~~ 176,432 49.00 % 86,450 86,450
Shuweihat Asia Operation & Maintenance Company 3,887 55.00 % 2,138 2,138
Waterbury Lake Uranium L.P. 80,042 29.68 % 23,756 23,756
ASM-BG Investicii AD 33,872 50.00 % 16,936 16,936
RES Technology AD 30,137 50.00 % 15,069 15,069
KV Holdings, Inc. 17,303 40.00 % 6,921 6,921
KEPCO SPC Power Corporation 265,231 60.00 % 159,139 159,139
Gansu Datang Yumen Wind Power Co., Ltd. 19,797 40.00 % 7,919 7,919
Datang Chifeng Renewable Power Co., Ltd. 511,290 40.00 % 204,516 204,516
Datang KEPCO Chaoyang Renewable Power Co., Ltd. 120,811 40.00 % 48,325 48,325
Rabigh Electricity Company 778,404 40.00 % 311,362 (40,752 ) (717 ) 269,893
Rabigh Operation & Maintenance Company Limited 20,778 40.00 % 8,311 8,311
Jamaica Public Service Company Limited 992,954 40.00 % 397,182 29,357 (13,923 ) 412,616
KW Nuclear Components Co., Ltd. 42,075 45.00 % 18,934 (176 ) 18,758
Busan Shinho Solar Power Co., Ltd. 27,972 25.00 % 6,993 6,993
Global Trade Of Power System Co., Ltd. 2,402 29.00 % 696 696
Expressway Solar-light Power Generation Co., Ltd. 11,541 50.00 % 5,771 5,771
Amman Asia Electric Power Company 448,107 60.00 % 268,864 268,864
KAPES, Inc. 41,522 51.00 % 21,176 (25,107 ) 3,931
Honam Wind Power Co., Ltd. 16,556 29.00 % 4,801 32 4,833
Korea Power Engineering Service Co., Ltd. 20,873 29.00 % 6,054 6,054
Chun-cheon Energy Co., Ltd. 123,222 29.90 % 36,843 3 (247 ) 36,599
Yeonggwangbaeksu Wind Power Co., Ltd. 24,827 15.00 % 3,723 6 3,729
Nghi Son 2 Power LLC 1,126,156 50.00 % 563,079 563,079
Kelar S.A. 229,196 65.00 % 148,978 3,389 152,367
PT. Tanjung Power Indonesia 287,370 35.00 % 100,580 100,580
Incheon New Power Co., Ltd. 1,040 29.00 % 302 302
Seokmun Energy Co., Ltd. 53,296 29.00 % 15,456 15,456
Daehan Wind Power PSC 42,655 50.00 % 21,327 21,327
Barakah One Company (1,821,204 ) 18.00 % (327,817 ) 153,104 174,713
Nawah Energy Company 2,179 18.00 % 392 392
MOMENTUM 586 33.33 % 195 195
Daegu Green Power Co., Ltd. 93,677 54.24 % 50,810 84 (20,381 ) 30,513
Yeonggwang Wind Power Co., Ltd. 55,769 46.00 % 25,654 492 26,146
Chester Solar IV SpA 340 90.00 % 306 1,146 1,452
Chester Solar V SpA (61 ) 90.00 % (55 ) 317 262
Diego de Almagro Solar SpA 1,140 90.00 % 1,026 674 1,700
South Jamaica Power Company Limited 243,822 20.00 % 48,764 (4 ) 48,760
Daesan Green Energy Co., Ltd. 72,374 35.00 % 25,331 25,331
RE Holiday Holdings LLC 179,562 50.00 % 89,780 89,780
RE Pioneer Holdings LLC 111,243 50.00 % 55,622 55,622
RE Barren Ridge 1 Holdings LLC 119,612 50.00 % 59,806 59,806
RE Astoria 2 LandCo LLC 16,238 50.00 % 8,119 8,119
RE Barren Ridge LandCo LLC 5,716 50.00 % 2,857 2,857
Laurel SpA 426 90.00 % 382 1,050 1,432
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd 33,586 12.37 % 4,155 9 (3,015 ) 1,149
Cheong-Song Noraesan Wind Power Co., Ltd. 14,669 29.01 % 4,256 61 4,317
Chester Solar I SpA 1,481 90.00 % 1,333 316 1,649
Solar Philippines Calatagan Corporation 128,254 38.00 % 48,737 14,958 63,695
Saemangeum Solar Power Co., Ltd. 28,734 81.01 % 23,277 23,277
Chungsongmeon BongSan wind power Co., Ltd. 2,787 29.00 % 808 1,782 2,590

127

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Book<br>value
<Joint ventures>
Jaeun Resident Wind Power Plant Co., Ltd. ~~W~~ 7,052 29.00 % 2,045 2,045
DE Energia SpA 7,410 49.00 % 3,631 7,431 11,062
Dangjin Eco Power Co., Ltd. 78,018 34.00 % 26,526 341 26,867
Haemodum Solar Co., Ltd. 6,592 49.00 % 3,230 3,230
Yangyang Wind Power Co., Ltd. 23,193 50.00 % 11,597 43 11,640
HORUS SOLAR, S.A. DE C.V. (13,996 ) 14.95 % (2,092 ) 3,580 1,488
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. 15,257 14.95 % 2,281 2,171 4,452
SUNMEX RENOVABLES, S.A. DE C.V. 11,253 14.95 % 1,682 5 1,687
Stavro Holding II A.B. 82,293 20.00 % 16,459 16,459
Solaseado Solar Power Co., Ltd. 55,094 38.90 % 21,432 1,361 22,793
Yeongam Solar Power Co., Ltd. 58,182 19.00 % 11,055 773 11,828
Samsu Wind Power Co., Ltd. 15,003 19.00 % 2,851 2,851
Pulau Indah Power Plant Sdn. Bhd. 180,313 25.00 % 45,078 5,643 50,721
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 52,262 29.53 % 15,433 527 (527 ) 15,433
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream 17,218 90.00 % 15,496 15,496
PT Barito Wahana Tenaga 678,043 30.61 % 207,565 207,565
Cheongna Energy Co., Ltd. 88,231 50.10 % 44,204 3,137 (1,183 ) 46,158
Naepo Green Energy Co., Ltd. 152,705 29.20 % 44,590 3,441 48,031
Boim Combined Heat and Power Generation Co., Ltd. (58,130 ) 46.30 % (27,938 ) (785 ) 28,723
OneEnergy Asia Limited 1,099,591 40.00 % 439,837 25,512 465,349
KAS INVESTMENT I LLC 20,333 29.89 % 6,078 6,078
KAS INVESTMENT II LLC 20,205 29.89 % 6,040 6,040
Energyco Co., Ltd. 5,149 29.00 % 1,493 829 2,322
CAES, LLC 49,267 36.00 % 17,736 2,923 20,659
Hapcheon Floating Photovoltaic Power Plant Inc. 23,050 49.00 % 11,295 39 11,334
Busan Industrial Solar Power Co., Ltd. 3,103 28.02 % 870 290 1,160
Bitsolar Energy Co., Ltd. (5,964 ) 27.10 % (1,616 ) 352 1,264
Pulau Indah O&M Sdn. Bhd. (1 ) 40.00 %
Guadalupe Solar SpA 1,138 60.00 % 683 98 781
Omisan Wind Power Co., Ltd. 25,460 42.00 % 10,693 166 10,859
Foresight Iberian Solar Group Holding, S.L. (7,763 ) 75.00 % (5,822 ) 1,427 4,395
Yeongwol Eco Wind Co., Ltd. (3,234 ) 29.00 % (938 ) 1,828 890
Gurae Resident Power Co., Ltd. 984 29.00 % 285 48 333
Cheongju Eco Park Co., Ltd. 36,004 29.00 % 10,441 195 10,636
Enel X Midland Photovoltaic, LLC 13,575 20.00 % 2,715 2,715
Geumsungsan Wind Power Co., Ltd. 25,117 29.00 % 7,284 556 7,840
KEPCO KPS CARABAO Corp. (609 ) 40.00 % (244 ) 244
Prime Swedish Holding AB 80,748 45.00 % 36,336 1,223 37,559
Goheung New Energy Co., Ltd. 31,818 46.15 % 14,684 1,084 15,768
Gunsan Land Solar Co., Ltd. 40,603 51.94 % 21,090 2,073 23,163
CapMan Lynx SCA, SICAR (131,471 ) 50.00 % (65,735 ) 65,735
International Offshore Power Transmission Holding Company Limited 31,541 35.00 % 11,040 (2 ) 11,038
Pyeongchang Wind Power Co., Ltd. 20,943 58.00 % 12,147 12,147
Eumseong Eco Park Co., Ltd. 38,058 29.00 % 11,036 577 11,613
Changwon Nu-ri Energy Co., Ltd. 12,549 61.00 % 7,655 3 7,658
PungBack Wind Farm Corporation 18,041 37.00 % 6,675 1,085 7,760
Trumbull Asset Management, LLC 1,662 78.00 % 1,297 1,297
S-Power Chile SpA 1 50.00 % 1 158 159
Seungmun Green Energy 38,620 33.00 % 12,745 12,745
Seobusambo highway photovoltaics Co., Ltd. 4,137 80.00 % 3,309 3,309

128

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2024
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Book<br>value
<Joint ventures>
Yangyang Suri Wind Power Co., Ltd. ~~W~~ 29,801 29.00 % 8,643 8,643
KEPCO for Power Company 29,843 60.00 % 17,906 17,906
Taebaek Wind Power Co., Ltd. 24,599 60.00 % 14,759 14,759
Jeonju Bio Green Energy Co., Ltd. 3,949 65.00 % 2,566 2,566
Kumyang Eco Park Co., Ltd. 13,051 29.00 % 3,785 56 3,841
Jeongeup Green Power Co., Ltd. 15,979 44.86 % 7,167 1,679 8,846
Hadong E-factory Co., Ltd. 1,127 29.99 % 338 6 344
Namyangju Combined Heat and Power Co., Ltd. 73,575 70.10 % 51,575 193 51,768
Samchuck 19,128 25.54 % 4,885 (4,885 )
Wadi Noor Solar Power Company SAOC 11,268 50.00 % 5,634 9 (4,251 ) 1,392
Fairhaven Energy Storage LLC 1,989 35.00 % 696 (696 )
Rutile BESS Holdings, LLC 3 50.00 % 1 1
Trumbull Development Partners, LLC 539,370 56.23 % 303,288 52,091 355,379
Imha Floating Photovoltaic Power Plant Inc. 12,866 49.00 % 6,305 46 6,351
EDFR KOWEPO AJBAN PV HOLDING LIMITED 170 50.00 % 85 85
Roof One Energy Co., Ltd. 4,096 48.00 % 1,966 34 2,000
(*) The percentage of ownership shown above is an effective percentage of ownership including the treasury stocks<br>and others.
--- ---

129

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Bookvalue
<Associates>
Korea Gas Corporation ~~W~~ 9,826,038 20.47 % 2,011,390 (40,747 ) 1,970,643
Korea Electric Power Industrial Development Co., Ltd. 101,723 29.00 % 29,500 29,500
YTN Co., Ltd. 244,080 21.43 % 52,303 52,303
Gangwon Wind Power Co., Ltd. 79,682 15.00 % 11,952 49 12,001
Hyundai Green Power Co., Ltd. 407,491 29.00 % 118,173 118,173
Korea Power Exchange 274,286 100.00 % 274,286 274,286
Taebaek Guinemi Wind Power Co., Ltd. 16,043 67.25 % 10,788 2,742 13,530
Daeryun Power Co., Ltd. 403,701 6.85 % 27,654 (820 ) 26,834
KNH Solar Co., Ltd. 11,828 27.00 % 3,194 3,194
SPC Power Corporation 258,764 38.00 % 98,330 (19,399 ) 78,931
Gemeng International Energy Co., Ltd. 2,317,545 42.00 % 973,369 (267,557 ) 705,812
PT. Cirebon Electric Power 488,215 27.50 % 134,259 134,259
KNOC Nigerian East Oil Co., Ltd. (84,988 ) 14.63 % (12,434 ) 12,434
KNOC Nigerian West Oil Co., Ltd. (78,143 ) 14.63 % (11,432 ) 11,432
PT Wampu Electric Power 75,120 46.00 % 34,555 34,555
PT. Bayan Resources TBK 2,428,465 20.00 % 485,693 209,894 (76,380 ) 619,207
S-Power Co., Ltd. 334,591 49.00 % 163,950 (1,185 ) 162,765
Pioneer Gas Power Limited (257,311 ) 38.50 % (99,058 ) 22,278 76,780
Xe-Pian Xe-Namnoy Power Co., Ltd. 469,397 25.00 % 117,349 305 (987 ) (289 ) 116,378
PT. Mutiara Jawa 17,822 29.00 % 5,168 5,168
Samcheok Eco Materials Co., Ltd. (17,351 ) 25.54 % (4,431 ) 4,431
Noeul Green Energy Co., Ltd. (17,973 ) 29.00 % (5,212 ) 5,212
Goseong Green Power Co., Ltd. 1,001,702 29.00 % 290,494 (2,870 ) 287,624
Gangneung Eco Power Co., Ltd. 716,901 29.00 % 207,901 48,531 (1,503 ) 254,929
Shin Pyeongtaek Power Co., Ltd. 390,335 40.00 % 156,134 3,559 (14,667 ) 145,026
Haeng Bok Do Si Photovoltaic Power Co., Ltd. 1,045 28.00 % 293 1 294
Dongducheon Dream Power Co., Ltd. 294,848 34.01 % 100,278 1,757 (2,249 ) (12,583 ) 87,203
Jinbhuvish Power Generation Pvt. Ltd. 48,583 5.16 % 2,526 (2,526 )
Daejung Offshore Wind Power Co., Ltd. 3,183 46.59 % 1,483 1,483
GS Donghae Electric Power Co., Ltd. 762,013 34.00 % 259,085 259,085
Daegu Photovoltaic Co., Ltd. 9,669 29.00 % 2,804 2,804
Busan Green Energy Co., Ltd. 11,239 29.00 % 3,259 3,259
Hansuwon KNP Co., Ltd. 2,164 28.98 % 627 (160 ) 467
Korea Electric Power Corporation Fund 23,873 98.09 % 23,417 4 23,421
Energy Infra Asset Management Co., Ltd. 12,257 9.90 % 1,213 1,213
Daegu clean Energy Co., Ltd. 44 28.00 % 12 (12 )
YaksuESS Co., Ltd. 980 29.00 % 284 1 285
Nepal Water & Energy Development Company Private Limited 159,265 68.88 % 109,701 872 110,573
Gwangyang Green Energy Co., Ltd. 123,103 20.00 % 24,620 18 24,638
PND solar Co., Ltd. 4,677 29.00 % 1,356 154 1,510
Hyundai Eco Energy Co., Ltd. 40,699 19.00 % 7,733 214 7,947
YeongGwang Yaksu Wind Electric Co., Ltd. 547 9.63 % 53 300 (220 ) 133
Green Energy Electricity Generation Co., Ltd. (2,658 ) 29.00 % (771 ) 779 8
Korea Energy Solutions Co., Ltd. 848 20.00 % 170 170
ITR Co., Ltd. (10 ) 10.00 % (1 ) 1
STN Co., Ltd. (formerly, Structure test network Co., Ltd.) 1,691 20.00 % 338 53 391
Indeck Niles Development, LLC 482,200 50.00 % 241,100 90,074 4,227 335,401
Indeck Niles Asset Management, LLC 278 33.33 % 93 93
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 13,258 49.00 % 6,496 6,496

130

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Bookvalue
<Associates>
Suwon New Power Co., Ltd. ~~W~~ 2,318 33.05 % 766 256 1,022
Gwangbaek Solar Power Investment Co., Ltd. 10,998 44.00 % 4,839 316 5,155
Go deok Clean Energy Co., Ltd. 11,807 40.00 % 4,723 4,723
SureDataLab Co., Ltd. 474 23.95 % 114 114
SEP Co., Ltd. (72 ) 21.26 % (15 ) 15
Hankook Electric Power Information Co., Ltd. 1,296 16.49 % 214 214
Tronix Co., Ltd. 1,757 12.50 % 220 220
O2&B Global Co., Ltd. 105 20.00 % 21 21
Muan Sunshine Solar Power Plant Co., Ltd. 11,637 20.00 % 2,328 494 2,822
Bigeum Resident Photovoltaic Power Co., Ltd. (5,723 ) 29.90 % (1,711 ) 24 1,687
Goesan Solar Park Co., Ltd. 9,921 29.00 % 2,877 2,877
Saemangeum Heemang Photovoltaic Co., Ltd. 39,089 35.00 % 13,681 739 14,420
Bitgoel Eco Energy Co., Ltd. 25,269 49.05 % 12,394 12,394
Jeju Gimnyeong Wind Power Co., Ltd. 819 30.00 % 246 246
Seoroseoro Sunny Power Plant Co., Ltd. 2,163 42.58 % 921 20 941
Muan Solar park Co., Ltd. 32,526 20.00 % 6,505 325 6,830
YuDang Solar Co., Ltd. 2,849 20.00 % 570 570
Anjwa Smart Farm & Solar City Co., Ltd. 34,245 20.00 % 6,849 816 7,665
KPE Green Energy Co., Ltd. (formerly, Daewon Green Energy Co., Ltd.) 30,506 25.36 % 7,735 44 7,779
G.GURU Co., Ltd. 676 24.65 % 167 167
UD4M Co., Ltd. 1,048 14.29 % 150 150
Dongbu Highway Solar Co., Ltd. 1,650 20.00 % 330 50 380
Seobu Highway Solar Co., Ltd. 2,032 20.00 % 406 406
Korea Energy Data Co., Ltd. 122 29.37 % 36 36
Gangneung Sacheon Fuel Cell Co., Ltd. 18,982 41.00 % 7,783 87 7,870
KOSTURE Co., Ltd. 174 4.42 % 8 8
Taebaek Gadeoksan Wind Power Co., Ltd. 57,135 34.00 % 19,426 19,426
Chuncheon Green Energy Co., Ltd. 19,659 45.00 % 8,847 53 8,900
Yeomsubong Wind Power Co., Ltd. 2,156 29.00 % 625 246 871
Yeongyang Wind Power Corporation II 26,634 30.00 % 7,990 2,110 10,100
Haeparang Energy Co., Ltd. 8,339 25.00 % 2,084 20 2,104
Saemangeum Sebit Power Plant Co., Ltd. 67,286 55.00 % 37,009 182 37,191
Boulder Solar III, LLC 1,929 30.00 % 579 175 754
PlatformN. Co., Ltd. (210 ) 29.58 % (62 ) 62
PT. Cirebon Energi Prasarana 765,973 10.00 % 76,597 76,597
Green Radiation Co., Ltd. 226 10.00 % 23 3 26
Future Convergence Technology Laboratory. Co., Ltd. 177 20.12 % 36 36
Eco motion Co., Ltd. (formerly, SC E&G. Co,. Ltd.) 1,335 20.00 % 267 267
REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.) 720 16.67 % 120 120
ACE 37 20.00 % 7 (5 ) 2
Environment and Energy Co., Ltd. 89 10.54 % 9 9
Santiago Solar Power SpA 23,538 50.00 % 11,769 11,769
Yanggu Floating Photovoltaic Power Plant Inc. 2,622 29.00 % 760 760
Power Embedded 296 23.33 % 69 1 70
Changwon SG Energy Co., Ltd. 4,089 18.78 % 768 15 783
Donpyung Technology. Co., Ltd. 1,396 20.00 % 279 (25 ) 254
HORANG ENERGY Inc. 9,813 40.00 % 3,925 224 4,149
Hoenggye Renewable Energy Co., Ltd (1,028 ) 36.10 % (370 ) 2,270 475 2,375
Haman Green Energy Co., Ltd. 8,516 35.00 % 2,981 2,981
Songsan Green Energy Co., Ltd. 13,754 60.00 % 8,252 71 8,323

131

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5). The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Bookvalue
<Joint ventures>
Shuweihat Asia Power Investment B.V. ~~W~~ 142,660 49.00 % 69,902 69,902
Shuweihat Asia Operation & Maintenance Company 3,305 55.00 % 1,818 1,818
Waterbury Lake Uranium L.P. 73,770 30.65 % 22,612 22,612
ASM-BG Investicii AD 29,478 50.00 % 14,739 14,739
RES Technology AD 28,765 50.00 % 14,383 14,383
KV Holdings, Inc. 12,966 40.00 % 5,186 5,186
KEPCO SPC Power Corporation 261,362 75.20 % 196,544 196,544
Gansu Datang Yumen Wind Power Co., Ltd. 15,788 40.00 % 6,315 6,315
Datang Chifeng Renewable Power Co., Ltd. 466,847 40.00 % 186,739 186,739
Datang KEPCO Chaoyang Renewable Power Co., Ltd. 108,017 40.00 % 43,207 43,207
Rabigh Electricity Company 701,614 40.00 % 280,646 (45,692 ) 97 235,051
Rabigh Operation & Maintenance Company Limited 12,411 40.00 % 4,964 4,964
Jamaica Public Service Company Limited 840,820 40.00 % 336,328 29,357 (15,819 ) 349,866
KW Nuclear Components Co., Ltd. 41,903 45.00 % 18,856 (176 ) 18,680
Busan Shinho Solar Power Co., Ltd. 26,675 25.00 % 6,669 6,669
Global Trade Of Power System Co., Ltd. 2,121 29.00 % 615 615
Expressway Solar-light Power Generation Co., Ltd. 10,374 50.00 % 5,187 5,187
Amman Asia Electric Power Company 372,373 60.00 % 223,424 223,424
KAPES, Inc. 37,591 51.00 % 19,171 (22,186 ) 3,015
Honam Wind Power Co., Ltd. 16,245 29.00 % 4,711 32 4,743
Korea Power Engineering Service Co., Ltd. 19,681 29.00 % 5,708 5,708
Chun-cheon Energy Co., Ltd. 118,152 29.90 % 35,327 3 (247 ) 35,083
Yeonggwangbaeksu Wind Power Co., Ltd. 22,918 15.00 % 3,437 6 3,443
Nghi Son 2 Power LLC 835,977 50.00 % 417,989 417,989
Kelar S.A. 197,779 65.00 % 128,557 2,972 131,529
PT. Tanjung Power Indonesia 257,574 35.00 % 90,151 90,151
Incheon New Power Co., Ltd. 1,027 29.00 % 298 298
Seokmun Energy Co., Ltd. 57,211 29.00 % 16,591 16,591
Daehan Wind Power PSC 32,853 50.00 % 16,426 16,426
Barakah One Company (1,314,727 ) 18.00 % (236,651 ) 95,932 140,719
Nawah Energy Company 1,835 18.00 % 330 330
MOMENTUM 628 33.33 % 209 209
Daegu Green Power Co., Ltd. 86,150 54.24 % 46,728 84 (20,382 ) 26,430
Yeonggwang Wind Power Co., Ltd. 49,756 46.00 % 22,888 492 23,380
Chester Solar IV SpA 931 45.00 % 419 65 484
Chester Solar V SpA 122 45.00 % 55 136 191
Diego de Almagro Solar SpA 1,878 45.00 % 846 108 954
South Jamaica Power Company Limited 215,559 20.00 % 43,112 (3 ) 43,109
Daesan Green Energy Co., Ltd. 63,402 35.00 % 22,191 22,191
RE Holiday Holdings LLC 168,184 50.00 % 84,092 84,092
RE Pioneer Holdings LLC 108,162 50.00 % 54,081 54,081
RE Barren Ridge 1 Holdings LLC 116,307 50.00 % 58,154 58,154
RE Astoria 2 LandCo LLC 13,874 50.00 % 6,937 6,937
RE Barren Ridge LandCo LLC 4,883 50.00 % 2,441 2,441
Laurel SpA 897 45.00 % 403 210 613
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd 29,997 12.37 % 3,710 9 3,719
Cheong-Song Noraesan Wind Power Co., Ltd. 12,734 29.01 % 3,695 61 3,756
Chester Solar I SpA 2,134 45.00 % 960 278 1,238
Solar Philippines Calatagan Corporation 108,382 38.00 % 41,185 16,945 58,130
Saemangeum Solar Power Co., Ltd. 28,911 81.01 % 23,419 23,419
Chungsongmeon BongSan wind power Co., Ltd. 3,045 29.00 % 883 1,782 2,665

132

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Bookvalue
<Joint ventures>
Jaeun Resident Wind Power Plant Co., Ltd. ~~W~~ 7,636 29.00 % 2,214 2,214
DE Energia SpA 6,601 49.00 % 3,235 6,468 9,703
Dangjin Eco Power Co., Ltd. 77,681 34.00 % 26,412 341 26,753
Haemodum Solar Co., Ltd. 6,371 49.00 % 3,122 3,122
Yangyang Wind Power Co., Ltd. 20,784 50.00 % 10,392 43 10,435
HORUS SOLAR, S.A. DE C.V. 50,862 14.95 % 7,601 3,580 11,181
RECURSOS SOLARES PV DE MEXICO II, S.A. DE C.V. 58,636 14.95 % 8,764 2,171 10,935
SUNMEX RENOVABLES, S.A. DE C.V. 23,664 14.95 % 3,536 5 3,541
Stavro Holding II A.B. 91,314 20.00 % 18,263 18,263
Solaseado Solar Power Co., Ltd. 42,651 38.90 % 16,592 1,361 17,953
Yeongam Solar Power Co., Ltd. 46,650 19.00 % 8,864 773 9,637
Samsu Wind Power Co., Ltd. 15,903 19.00 % 3,022 3,022
Pulau Indah Power Plant Sdn. Bhd. 79,841 25.00 % 19,960 5,643 25,603
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 72,368 29.53 % 21,370 527 21,897
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream 17,208 90.00 % 15,487 15,487
PT Barito Wahana Tenaga 512,846 30.61 % 156,994 156,994
Cheongna Energy Co., Ltd. 47,107 50.10 % 23,601 3,137 (1,189 ) 25,549
Naepo Green Energy Co., Ltd. 18,101 29.20 % 5,285 5,285
Boim Combined Heat and Power Generation Co., Ltd.<br>(formerly, Dayone Energy Co., Ltd.) (56,378 ) 46.30 % (26,103 ) (826 ) 26,929
OneEnergy Asia Limited 661,133 40.00 % 264,454 25,512 289,966
KAS INVESTMENT I LLC 52,806 29.89 % 15,784 15,784
KAS INVESTMENT II LLC 52,554 29.89 % 15,709 15,709
Energyco Co., Ltd. 4,520 29.00 % 1,311 829 2,140
CAES, LLC 48,490 36.00 % 17,457 2,923 20,380
Hapcheon Floating Photovoltaic Power Plant Inc. 21,037 49.00 % 10,309 39 10,348
Busan Industrial Solar Power Co., Ltd. 2,740 28.02 % 768 290 1,058
Bitsolar Energy Co., Ltd. (5,932 ) 27.10 % (1,607 ) 352 1,607 352
Pulau Indah O&M Sdn. Bhd. 60.00 %
Guadalupe Solar SpA 1,835 60.00 % 1,102 98 1,200
Omisan Wind Power Co., Ltd. 23,960 42.00 % 10,063 166 10,229
Foresight Iberian Solar Group Holding, S.L. 8,923 75.00 % 6,692 1,427 8,119
Yeongwol Eco Wind Co., Ltd. 7,573 29.00 % 2,196 1,828 4,024
Gurae Resident Power Co., Ltd. 1,797 29.00 % 521 48 569
Cheongju Eco Park Co., Ltd. 30,609 29.00 % 8,877 195 9,072
Enel X Midland Photovoltaic, LLC 12,710 20.00 % 2,542 2,542
Geumsungsan Wind Power Co., Ltd. 17,101 29.00 % 4,959 556 5,515
KEPCO KPS CARABAO Corp. (93 ) 40.00 % (37 ) 37
Prime Swedish Holding AB 83,481 45.00 % 37,566 1,223 38,789
Goheung New Energy Co., Ltd. 31,749 46.15 % 14,652 1,084 15,736
Gunsan Land Solar Co., Ltd. 35,587 56.91 % 20,251 2,178 22,429
CapMan Lynx SCA, SICAR 6,832 50.00 % 3,416 (3,416 )
International Offshore Power Transmission Holding Company Limited 4,069 35.00 % 1,425 (2 ) 1,423
Pyeongchang Wind Power Co., Ltd. 21,083 58.00 % 12,228 12,228
Eumseong Eco Park Co., Ltd. 26,929 29.00 % 7,809 577 8,386
Changwon Nu-ri Energy Co., Ltd. 13,154 61.00 % 8,024 3 8,027
PungBack Wind Farm Corporation 18,526 37.00 % 6,855 1,085 7,940
Trumbull Asset Management, LLC 1,200 78.00 % 936 936
S-Power Chile SpA (150 ) 50.00 % (75 ) 139 64
Seungmun Green Energy 29,566 33.00 % 9,757 9,757
Seobusambo highway photovoltaics Co., Ltd. 4,476 80.00 % 3,580 3,580

133

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(5) The financial information of associates and joint ventures reconciled to the Group’s investments inconsolidated financial statements as of December 31, 2024 and 2023 is as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Investees Net assets Percentage ofownership (*) Share in<br>net assets Investment<br>differential Intercompany<br>transaction Others Bookvalue
<Joint ventures>
Yangyang Suri Wind Power Co., Ltd. ~~W~~ 33,130 29.00 % 9,608 9,608
KEPCO for Power Company 725 60.00 % 435 435
Taebaek Wind Power Co., Ltd. 23,221 60.00 % 13,932 13,932
Jeonju Bio Green Energy Co., Ltd. 4,916 65.00 % 3,195 3,195
Kumyang Eco Park Co., Ltd. 12,436 29.00 % 3,607 56 3,663
Jeongeup Green Power Co., Ltd. 5,781 18.71 % 1,082 478 1,560
Hadong E-factory Co., Ltd. 1,145 29.99 % 343 6 349
Namyangju Combined Heat and Power Co., Ltd. 7,000 55.00 % 3,850 3,850
Wadi Noor Solar Power Company SAOC 1,675 50.00 % 837 9 846
Fairhaven Energy Storage LLC 35.00 %
(*) The percentage of ownership shown above is an effective percentage of ownership including the treasury stocks<br>and others.
--- ---

134

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(6) As of December 31, 2024 and 2023, investments in associates and joint ventures unrecognized of whichthe book value has be come nil due to the accumulated losses of associates and joint ventures are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Unrecognized equityinterest Accumulated<br>unrecognizedequity interest Unrecognizedequity interest Accumulated<br>unrecognizedequity interest
Eurasia Energy Holdings ~~W~~ (203 )
Boim Combined Heat and Power Generation Co., Ltd. 769 28,723 937 27,954
Samcheok Eco Materials Co., Ltd. 895 5,326 3,625 4,431
Naepo Green Energy Co., Ltd. (14,956 )
Barakah One Company 33,994 174,713 46,746 140,719
Pioneer Gas Power Limited (*) 19,835 76,712
Bigeum Resident Photovoltaic Power Co., Ltd. (460 )
KAPES, Inc. 916 3,931 (145 ) 3,015
ITR Co., Ltd. 14 15 (4 ) 1
SEP Co., Ltd. 15 1 15
International Offshore Power Transmission<br><br><br>Holding Company Limited (23,378 )
Noeul Green Energy Co., Ltd. (1,377 ) 3,835 (258 ) 5,212
Gangneung Eco Power Co., Ltd. (14 )
PlatformN. Co., Ltd. (44 ) 18 62 62
KEPCO KPS CARABAO Corp. 207 244 37 37
Bitsolar Energy Co., Ltd. 1,264 1,264
Green Energy Electricity Generation Co., Ltd. 396 396
O2&B Global Co., Ltd. 6 6
Pulau Indah O&M Sdn. Bhd. 1 1
Foresight Iberian Solar Group Holding, S.L. 4,395 4,395
Green Radiation Co., Ltd., 11 11
Hoenggye Renewable Energy Co., Ltd., 266 266
CapMan Lynx SCA, SICAR 31,090 31,090
(*) For the year ended December 31, 2024, the investment therein was reclassified from investment in an associate<br>to a financial asset measured at fair value through other comprehensive income.
--- ---

135

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(7) As of December 31, 2024, shareholders’ agreements on investments in associates and joint venturesthat may cause future economic resource or cash outflows are as follows:
--- ---
(i) Taebaek Wind Power Co., Ltd.
--- ---

In the case where non-controlling shareholders decide to dispose of their shares in Taebaek Wind Power Co., Ltd. after the warrant period in the EPC contract of defect repair for wind power generator has expired, the Group acquires those shares at fair value. The acquisition is to be made after the conditions of the acquisition are discussed among the parties involved, with consideration of various factors such as financial status and business situation.

(ii) Pyeongchang Wind Power Co., Ltd.

In the case where non-controlling shareholders decide to dispose of their shares in Pyeongchang Wind Power Co., Ltd. after commercial operation of the power plant has started, the Group acquires those shares at fair value. The acquisition is to be made after the conditions of the acquisition are discussed among the parties involved, with the careful consideration of various factors such as financial status and business situation.

(iii) Daeryun Power Co., Ltd.

The Group reserves the right to participate in the transfer of shares in Daeryun Power Co., Ltd. on the same terms as Daeryun E&S Co., Ltd., if Daeryun E&S Co., Ltd. wishes to transfer its shares in Daeryun Power Co., Ltd.

(iv) Daegu Green Power Co., Ltd.

The Group has a right to purchase all the shares of Daegu Green Power Co., Ltd. held by the financial investors at the yield-based transfer amount agreed with the shareholders. The Group can exercise its right 5, 10 and 13 years after the date of the investment. Also, the Group has a right to purchase all or part of the shares of Daegu Green Power Co., Ltd. held by Lotte Engineering & Construction Co. at the yield-based transfer amount agreed with the shareholders.

(v) Yeonggwang Wind Power Co., Ltd.

In case the Group intends to purchase all or part of the shares from Daehan Green Energy Co., Ltd., which is a non-controlling shareholder, Daehan Green Energy Co., Ltd. has an obligation to evaluate the shares at fair value and transfer them to the Group.

(vi) Hyundai Green Power Co., Ltd.

The Group has an obligation to purchase certain shares in Hyundai Green Power Co., Ltd. from financial investors holding certain shares in Hyundai Green Power Co., Ltd. (i.e., IBK and others) when any of the financial investors claim to sell the Group’s shares at a certain point of time in the future. The Group also has the right to claim Hyundai Steel Company, another operating investor of Hyundai Green Power Co., Ltd., to sell its shares at a certain point of time in the future, and is obliged to sell the Group’s shares to Hyundai Steel Company or a third party designated by Hyundai Steel Company when Hyundai Steel Company requests the Group to sell its shares.

(vii) Omisan Wind Power Co., Ltd.

The Group has the right to claim Unison Co., Ltd. to transfer its shares in Omisan Wind Power Co., Ltd. either as a whole or as a part after the completion of the power generation complex, and if the Group exercises its right to claim transfer, Unison Co., Ltd. is obliged to transfer such shares at fair value to the Group or a third party designated by the Group.

(viii) Geumsungsan Wind Power Co., Ltd.

The Group has a right to purchase shares owned by Daemyung Energy Co., Ltd., within the range of 18%, for 3 years after the commencement of the operation.

(ix) Seungmun Green Energy

According to the special conditions of the REC trading contract, a connected entity may demand the sale of ownership stakes held by other investors to the connected entity, or the investors may acquire new stakes or modify business documents through a capital increase in Seungmun Green Energy with prior written consent from the trustee. In the event that other investors sell their stakes to the connected entity, they may demand that the connected entity purchase their stakes in the future if certain conditions are met.

136

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(7) As of December 31, 2024, shareholders’ agreements on investments in associates and joint venturesthat may cause future economic resource or cash outflows are as follows, continued:
--- ---
(x) Taebaek Guinemi Wind Power Co., Ltd.
--- ---

If shareholders of Taebaek Guinemi Wind Power Co., Ltd. other than the Group intend to sell their shares after the elapse of warranty period for wind power generators specified in the EPC contract, the Group has preferential right to other parties and third parties to take over the shares that the shareholders want to sell at fair value by reaching agreement with the shareholders on the timing of sales and volume of shares to be sold considering the financial conditions, management conditions and others.

(xi) HORANG ENERGY Inc.

The Group has the right to purchase all or partial shares of HORANG ENERGY Inc. held by other shareholders after three years have elapsed from the date of commencing the operations under the unanimous agreement of all shareholders. The Group also has an obligation to sell its shares in HORANG ENERGY Inc. either as a whole or as a part to CNcore Co., Ltd. after three years have elapsed from the date of commencing the operations upon the claim of CNcore Co., Ltd., under the unanimous agreement of all shareholders.

(xii) Namyangju Combined Heat and Power Co., Ltd.

The Group has an obligation to purchase certain shares from Narae Energy Co., Ltd. at fair value when Narae Energy Co., Ltd. intends to sell its shares in Namyangju Combined Heat and Power Co., Ltd. on the exercise date agreed upon in accordance with the shareholders’ agreement. If Narae Energy Co., Ltd. becomes the largest equity holder by selling, assigning, or transferring shares in accordance with the shareholders’ agreement, the Group is obligated to guarantee the drag-along right that allows Narae Energy Co., Ltd. to sell the shares held by both shareholders under the same conditions.

(xiii) Jeongeup Green Power Co., Ltd.

The Group has the right to acquire the shares held by M Eco Co., Ltd. at fair value on the date when it has been third, seventh, and tenth year from the beginning date of commercial operation. However, if M Eco Co., Ltd. transfers its shares to the entity holding the majority of shares in M Eco Co., Ltd., its right to transfer shares to the shareholder prevails the Group’s right to acquire shares from M Eco Co., Ltd.

137

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(8) Significant restrictions on the Group’s abilities on associates and joint ventures as ofDecember 31, 2024 are as follows:
--- ---
Company Nature and extent of any significantrestrictions
--- ---
Daegu Green Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Shares cannot be wholly or partially transferred without prior written consent of<br>financial institutions.
Pyeongchang Wind Power Co., Ltd. Principals and interests on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or<br>partially transferred without prior written consent of the financial institutions.
Daeryun Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions. Shares cannot be wholly or partially transferred without prior consent of the financial<br>institutions.
KNH Solar Co., Ltd. Shares cannot be wholly or partially transferred without the prior written consent of other shareholders.
Korea Power Engineering Service Co., Ltd. Shares cannot be wholly or partially transferred without the consent of the board of directors.
Daehan Wind Power PSC Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
Daejung Offshore Wind Power Co., Ltd. Before the commencement of the operation, shares cannot be wholly or partially transferred without the prior written consent of other shareholders.
Naepo Green Energy Co., Ltd. Dividends can only be paid to shareholders when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Shares cannot be wholly or partially transferred without prior<br>consent of interested parties. All or part of the stocks held cannot be transferred without the written consent of the financial institution and if the conditions for the O&M utilization rate are not met or if a payment deferment is necessary<br>due to the fulfillment of the obligation to provide funds, the contract amount will be paid in a subordinated order.
Solaseado Solar Power Co., Ltd. Principals and interests on subordinated loans or dividends can only be paid when all conditions of the shareholders’ agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of other<br>stakeholders including shareholders and financial institutions.
Samcheok Eco Materials Co., Ltd. Dividends can only be paid when all conditions of the shareholders’ agreement are satisfied. Also, shares cannot be wholly or partially transferred without the written consent of the other shareholders.
Taebaek Guinemi Wind Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied and consent of the financial institutions is obtained. Also, shares cannot be wholly or partially transferred without the written consent of the<br>financial institutions.
Indeck Niles Asset Management, LLC Shares cannot be wholly or partially transferred without the consent of the stakeholders.
Indeck Niles Development, LLC Shares cannot be wholly or partially transferred without the consent of the stakeholders.
Chester Solar IV SpA Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
Chester Solar V SpA Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
Diego de Almagro Solar SpA Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
Laurel SpA Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
Chester Solar I SpA Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
Kelar S.A. Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders.
GS Donghae Electric Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained.
Honam Wind Power Co., Ltd. Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied.
Seokmun Energy Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Also, principals and interests on subordinated loans can only be paid when written<br>consent of financial institutions is obtained.
Chun-cheon Energy Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, principals and interests on subordinated loans shall not be paid until the payment conditions are satisfied.

138

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(1) Investments in associates and joint ventures as of December 31, 2019 and 2018 are as follows, continued:
--- ---
Company Nature and extent of any significantrestrictions
--- ---
Yeonggwangbaeksu Wind Power Co., Ltd. Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Also, principals and<br>interests on subordinated loans can only be paid when written consent of financial institutions is obtained.
Yeonggwang Wind Power Co., Ltd. Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained.
Jamaica Public Service Company Limited Dividends can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained.
PT. Tanjung Power Indonesia Dividends can only be paid when all conditions of the loan agreement are satisfied.
DE Energia SpA Dividends can only be paid when all conditions of the loan agreement are satisfied.
Daesan Green Energy Co., Ltd. Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained.
Taebaek Gadeoksan Wind Power Co., Ltd. Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Also, principals and interests<br>on subordinated loans can only be paid when prior written consent of financial institutions is obtained.
Bitsolar Energy Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied.
Omisan Wind Power Co., Ltd. Principals and interests on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained. Shares cannot be wholly or<br>partially transferred without the consent of the stakeholders including other shareholders financial institutions. Also, either of Korea Southern Power Co., Ltd., a subsidiary of the Group, and Unison Co., Ltd. shall not transfer their shares to<br>others wholly or partially until 4 years have passed from the completion of power complex without the written consent from the other party. In case the shares of each party become less than 10% of outstanding shares after the transfer, it also<br>requires the written consent from the other party.
Yangyang Wind Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained.
Busan Industrial Solar Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained.
Geumsungsan Wind Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be wholly or partially transferred for 3 years after the commencement of operation, and also cannot be transferred or disposed to the<br>third party in a way not permitted in the financial documents without prior written consent of an agent bank.
KPE green energy Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained.
Cheongju Eco Park Co., Ltd. Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied, or permitted by related financing contracts, or prior written consent of financial<br>institutions is obtained.
Goheung New Energy Co., Ltd. Payment of dividends or repayment of loans such as subordinated loans to the investors can only be made when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is<br>obtained.
Seungmun Green Energy Dividends and settlement amount for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained.
Trumbull Asset Management, LLC Shares cannot be either wholly or partially transferred without the consent of the stakeholders.
HORANG ENERGY Inc. Dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be either wholly or partially transferred before three years have passed after the commencement of operation, and also cannot be<br>transferred or disposed to the third party in a way not permitted in the financial documents without prior written consent of an agent bank.
Yanggu Floating Photovoltaic Power Plant Inc. Payment of dividends or repayment of loans such as subordinated loans to the investors can be made only when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is<br>obtained.
Hoenggye Renewable Energy Co., Ltd. Dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained.
Daegu Photovoltaic Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be either wholly or partially transferred without prior written consent of financial institutions is obtained.
Dongducheon Dream Power Co., Ltd. Principals and interest on subordinated loans or dividends can be paid only when all conditions of the loan agreement are satisfied. Shares cannot be either wholly or partially transferred without prior written consent of the<br>financial institutions.

139

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(8) Significant restrictions on the Group’s abilities on associates or joint ventures as ofDecember 31, 2024 are as follows, continued:
--- ---
Company Nature and extent of any significantrestrictions
--- ---
Haeng Bok Do Si Photovoltaic Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be either wholly or partially transferred without prior consent of the stakeholders.
Shin Pyeongtaek Power Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Seoroseoro Sunny Power Plant Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Anjwa Smart Farm & Solar City Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Muan Solar Park Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be wholly or partially transferred without prior written consent of the financial institutions is obtained.
YuDang Solar Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Haemodum Solar Co., Ltd. Principals and interest payments on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or<br>partially transferred without prior written consent of the financial institutions is obtained.
Cheongna Energy Co., Ltd. Principals and interest payments on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be wholly or partially transferred without prior written consent of the<br>financial institutions is obtained.
Hapcheon Floating Photovoltaic Power Plant Inc. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Yeongwol Eco Wind Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Gurae Resident Power Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Gunsan Land Solar Co., Ltd. Principals and interest payments on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or<br>partially transferred without prior written consent of the financial institutions is obtained. When the internal rate of return defined in shareholders’ agreement is met, any excessive dividend income must be provided to Gunsan City.
Eumseong Eco Park Co., Ltd. Dividends and settlement amounts for renewable energy certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Shares cannot be wholly or<br>partially transferred without prior written consent of the financial institutions is obtained.
PungBack Wind Farm Corporation Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.
Seobusambo highway photovoltaics Co., Ltd. Principals and interest on subordinated loans or dividends can be paid either when all conditions of the loan agreement are satisfied or when prior written consent of financial institutions is obtained. Shares cannot be either<br>wholly or partially transferred without prior written consent of the financial institutions.

140

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

17. Investments in Associates and Joint Ventures, Continued
(8) Significant restrictions on the Group’s abilities on associates or joint ventures as ofDecember 31, 2024 are as follows, continued:
--- ---
Company Nature and extent of any significantrestrictions
--- ---
Haman Green Energy Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained or prior written consent of financial institutions is obtained. In addition, the Group<br>cannot transfer all or part of its shares without the consent of other shareholders until five years have elapsed from the date of issuance of the acquisition notice after the comprehensive completion of the EPC contract for the project, and shares<br>cannot be wholly or partially transferred without prior written consent of the financial institutions is obtained.
Jeongeup Green Power Co., Ltd. Dividends to investors are only possible when the conditions in the loan agreement are met or prior written consent from the financial institution is obtained, and subordinated loans cannot be paid to investors before the loan<br>principal and interest are fully repaid. Additionally, all or part of the shares held cannot be transferred without the consent of other shareholders before the commencement of commercial operation of this business. The entity’s stocks may not<br>be transferred to a third party or otherwise disposed of in a manner not permitted in the financial documents without the prior written consent of the agent bank.
Nepal Water & Energy Development Company Private Limited The Group must maintain a minimum percentage of ownership (50%) until the project completion date and thereafter.
Goseong Green Power Co., Ltd. The Group cannot transfer all or part of its shares without the consent of stakeholders until three years have passed since the start of commercial operation of the business.
Gangneung Eco Power Co., Ltd. The Group cannot transfer all or part of its shares without the consent of stakeholders until three years have passed since the start of commercial operation of the business.
S-Power Co., Ltd. Dividends can only be paid when all conditions of the loan agreement are satisfied. Shares cannot be wholly or partially transferred without prior consent of the stakeholders is obtained.
South Jamaica Power Company Limited Dividends can be paid only when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained.
Rutile BESS Holdings, LLC Shares cannot be either wholly or partially transferred without prior written consent of other stakeholders.
Kumyang Eco Park Co., Ltd. Dividends and payables from settlement for renewable energy certificates can only be paid when all conditions of the loan agreement are satisfied or a prior written consent of financial institutions is obtained.
HyChangwon Fuel Cell. Co., Ltd. Principals and interests on subordinated loans or dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. In addition, the Group cannot<br>transfer all or part of its shares until five years have elapsed from the date of issuance of the acquisition notice. Shares cannot be wholly or partially transferred without obtaining prior written consent of the financial institutions.
Roof One Energy Co., Ltd. Dividends can only be paid when all conditions prescribed in the loan agreement are satisfied. Shares cannot be wholly or partially transferred without obtaining prior consent of the stakeholders thereof.
Amaala Sustainable Company for Energy LLC Dividends may be payable only when all conditions prescribed in the loan agreement between Amaala Sustainable Company for Energy LLC and financial institution are satisfied.

141

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

18. Property, Plant and Equipment
(1) Property, plant and equipment as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Acquisition cost Government<br>grants Accumulated<br>depreciation Accumulatedimpairment<br>losses Book<br>value
Land ~~W~~ 14,577,296 (27,403 ) (29,241 ) 14,520,652
Buildings 26,217,223 (41,718 ) (12,812,659 ) (7,103 ) 13,355,743
Structures 89,573,695 (149,737 ) (37,762,078 ) (18,678 ) 51,643,202
Machinery 122,610,077 (105,546 ) (65,120,941 ) (533,405 ) 56,850,185
Ships 17,870 (7,336 ) 10,534
Vehicles 452,812 (2,745 ) (371,245 ) (116 ) 78,706
Equipment 2,512,223 (3,915 ) (2,073,752 ) (375 ) 434,181
Tools 1,428,994 (1,306 ) (1,255,257 ) (1 ) 172,430
Construction-in-progress 31,307,153 (223,566 ) (22,795 ) 31,060,792
Right-of-use assets 6,031,076 (2,984,680 ) 3,046,396
Asset retirement costs 18,283,796 (8,388,929 ) (146,423 ) 9,748,444
Others 17,198,254 (15,136,756 ) 2,061,498
~~W~~ 330,210,469 (555,936 ) (145,913,633 ) (758,137 ) 182,982,763
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Acquisition cost Government<br>grants Accumulated<br>depreciation Accumulatedimpairment<br>losses Book<br>value
Land ~~W~~ 14,426,253 (27,404 ) (28,165 ) 14,370,684
Buildings 25,236,830 (46,227 ) (11,870,875 ) (5,751 ) 13,313,977
Structures 86,010,823 (157,881 ) (35,111,297 ) (9,525 ) 50,732,120
Machinery 113,735,035 (119,824 ) (59,381,603 ) (536,386 ) 53,697,222
Ships 17,845 (5,480 ) 12,365
Vehicles 421,349 (2,837 ) (337,859 ) (116 ) 80,537
Equipment 2,341,242 (5,932 ) (1,909,992 ) (375 ) 424,943
Tools 1,354,532 (62 ) (1,190,057 ) (1 ) 164,412
Construction-in-progress 32,031,297 (173,474 ) (22,795 ) 31,835,028
Right-of-use assets 6,041,794 (2,678,051 ) 3,363,743
Asset retirement costs 17,007,088 (7,127,091 ) (146,423 ) 9,733,574
Others 16,255,667 (14,108,737 ) 2,146,930
~~W~~ 314,879,755 (533,641 ) (133,721,042 ) (749,537 ) 179,875,535

142

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

18. Property, Plant and Equipment, Continued
(2) Changes in property, plant and equipment for each of the two years in the period ended December 31,2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Acquisition Disposal Depreciation Impairment Others Ending<br>balance
Land ~~W~~ 14,398,088 28,390 (38,162 ) 159,739 14,548,055
(Government grants) (27,404 ) 1 (27,403 )
Buildings 13,360,204 3,767 (13,366 ) (984,288 ) (1,351 ) 1,032,495 13,397,461
(Government grants) (46,227 ) 4,508 1 (41,718 )
Structures 50,890,001 16,201 (303,046 ) (2,873,012 ) (9,154 ) 4,071,949 51,792,939
(Government grants) (157,881 ) 1,330 9,458 (2,644 ) (149,737 )
Machinery 53,817,046 341,652 (199,670 ) (6,311,423 ) (735 ) 9,308,861 56,955,731
(Government grants) (119,824 ) 522 16,076 (2,320 ) (105,546 )
Ships 12,365 (1,865 ) 34 10,534
Vehicles 83,374 4,311 (223 ) (43,837 ) 37,826 81,451
(Government grants) (2,837 ) 8 1,233 (1,149 ) (2,745 )
Equipment 430,875 84,020 (236 ) (210,376 ) 133,813 438,096
(Government grants) (5,932 ) 2,118 (101 ) (3,915 )
Tools 164,474 32,825 (68 ) (82,603 ) 59,108 173,736
(Government grants) (62 ) 341 (1,585 ) (1,306 )
Construction-in-progress 32,008,502 14,335,323 (15,059,467 ) 31,284,358
(Government grants) (173,474 ) 6,806 75 (56,973 ) (223,566 )
Right-of-use assets 3,363,743 132,495 (2,252 ) (538,995 ) 91,405 3,046,396
Asset retirement costs 9,733,574 (1,809,280 ) 1,824,150 9,748,444
Others 2,146,930 1,704 (1,011,161 ) 924,025 2,061,498
~~W~~ 179,875,535 14,987,494 (555,087 ) (13,833,106 ) (11,240 ) 2,519,167 182,982,763

143

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

18. Property, Plant and Equipment, Continued
(2) Changes in property, plant and equipment for each of the two years in the period ended December 31,2024 are as follows, continued:
--- ---
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Acquisition Disposal Depreciation Impairment (*) Others Ending<br>balance
Land ~~W~~ 14,270,937 23,519 (15,302 ) 118,934 14,398,088
(Government grants) (27,405 ) 1 (27,404 )
Buildings 13,292,200 3,706 (6,221 ) (938,549 ) 1,009,068 13,360,204
(Government grants) (50,437 ) 5,070 (860 ) (46,227 )
Structures 50,449,235 18,486 (311,877 ) (2,828,065 ) 3,562,222 50,890,001
(Government grants) (165,608 ) 1,611 9,562 (3,446 ) (157,881 )
Machinery 54,191,785 184,532 (195,673 ) (6,062,471 ) (6,331 ) 5,705,204 53,817,046
(Government grants) (127,126 ) 1,230 17,413 (11,341 ) (119,824 )
Ships 13,476 (1,812 ) 701 12,365
Vehicles 87,687 5,778 (76 ) (40,760 ) 30,745 83,374
(Government grants) (2,045 ) 960 (1,752 ) (2,837 )
Equipment 435,741 62,291 (264 ) (206,894 ) 140,001 430,875
(Government grants) (6,608 ) 2,011 (1,335 ) (5,932 )
Tools 178,501 30,598 (364 ) (78,487 ) 34,226 164,474
(Government grants) (99 ) 38 (1 ) (62 )
Construction-in-progress 28,041,471 14,069,968 (1,511 ) (10,700 ) (10,090,726 ) 32,008,502
(Government grants) (135,926 ) 5,544 (43,092 ) (173,474 )
Right-of-use assets 3,711,125 261,862 (2,613 ) (536,517 ) (70,114 ) 3,363,743
Asset retirement costs 11,288,967 (1,251,446 ) (303,947 ) 9,733,574
Others 2,419,437 1,290 (958,649 ) 684,852 2,146,930
~~W~~ 177,865,308 14,667,574 (531,059 ) (12,868,596 ) (17,031 ) 759,339 179,875,535
(*) The Group calculated the actual damage in relation to the fire incident at Taean IGCC gas refinery in January<br>2023, and recognized ~~W~~6,331 million as an impairment loss. In addition, as the recoverable amount of construction-in-progress of Guam Ukudu Power LLC, a subsidiary of the Group, is less than the book value, ~~W~~10,700<br>million was recognized as an impairment loss for the year ended December 31, 2023.
--- ---
(3) For the year ended December 31, 2024, the Group’s subsidiaries including Korea Hydro &<br>Nuclear Power Co., Ltd. have recognized proceeds and costs from selling items produced before its intended use, by accounting ~~W~~101,609 million (~~W~~38,149 million for the year ended December 31, 2023) as revenue<br>and ~~W~~77,549 million (~~W~~45,578 million for the year ended December 31, 2023) as expense in profit or loss.
--- ---

144

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

19. Investment Properties
(1) Investment properties as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
Acquisitioncost Governmentgrants Accumulateddepreciation Book<br>value
Land ~~W~~ 210,509 210,509
Buildings 32,517 (22 ) (14,020 ) 18,475
~~W~~ 243,026 (22 ) (14,020 ) 228,984
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Acquisitioncost Governmentgrants Accumulateddepreciation Book<br>value
Land ~~W~~ 172,594 172,594
Buildings 20,043 (22 ) (7,088 ) 12,933
~~W~~ 192,637 (22 ) (7,088 ) 185,527
(2) Changes in investment properties for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Disposal Depreciation Others Endingbalance
Land ~~W~~ 172,594 37,915 210,509
Buildings 12,955 (683 ) 6,225 18,497
(Government grants) (22 ) 1 (1 ) (22 )
~~W~~ 185,527 (682 ) 44,139 228,984
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Disposal Depreciation Others Endingbalance
Land ~~W~~ 194,417 (21,823 ) 172,594
Buildings 13,890 (494 ) (441 ) 12,955
(Government grants) (21 ) 1 (2 ) (22 )
~~W~~ 208,286 (493 ) (22,266 ) 185,527

145

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

19. Investment Properties, Continued
(3) Income and expenses related to investment properties for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Rental income ~~W~~ 11,594 10,519
Operating and maintenance expenses related to rental income (716 ) (507 )
~~W~~ 10,878 10,012
(4) Fair values of investment properties as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Book value Fair value Book value Fair value
Land ~~W~~ 210,509 337,379 172,594 258,478
Buildings 18,475 19,094 12,933 13,437
~~W~~ 228,984 356,473 185,527 271,915

The Group determined the fair value of investment property on the transition date based on valuations conducted by an independent valuation firm that is independent of the Group. The valuation firm has appropriate qualifications and experience in the valuation of real estate in the Republic of Korea, and the valuation was conducted using a comparison method, which is a method of obtaining economic value based on the marketability of the property. The fair values of the investment properties as of the reporting date were determined in consideration of the fluctuation on the publicly announced individual land price after the KIFRS transition date (January 1, 2010).

(5) All of the Group’s investment properties are held under freehold interests.****

146

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

20. Construction Contracts
(1) Changes in the total contract amount in which revenue is not yet recognized for each of the two years in theperiod ended December 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase(decrease) (*) Recognizedas<br>revenue Ending balance
Nuclear power plant construction in overseas and others ~~W~~ 5,795,600 1,190,281 (849,108 ) 6,136,773
(*) For the year ended December 31, 2024, the increased balance of contracts from new orders is<br>~~W~~1,299,281 million and the decreased balance of contracts due to changes in scope of construction work and foreign exchange impact is ~~W~~109,000 million.
--- ---
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase(decrease) (*) Recognizedas<br>revenue Ending balance
Nuclear power plant construction in overseas and others ~~W~~ 5,594,946 986,049 (785,395 ) 5,795,600
(*) For the year ended December 31, 2023, the increased balance of contracts from new orders is<br>~~W~~1,029,165 million and the decreased balance of contracts due to changes in scope of construction work and foreign exchange impact is ~~W~~43,116 million.
--- ---
(2) Accumulated earned revenue, expense and others related to the Group’s construction contracts inprogress as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- ---
Accumulatedearned revenue Accumulated<br>expense Accumulated<br>profit Unearned<br>advance receipts
Nuclear power plant construction in overseas and others ~~W~~ 24,255,432 24,008,579 246,853 80,069
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Accumulatedearned revenue Accumulated<br>expense Accumulated<br>profit Unearned<br>advance receipts
Nuclear power plant construction in overseas and others ~~W~~ 22,996,785 22,382,628 614,157 74,253

147

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

20. Construction Contracts, Continued
(3) The gross amounts due from customers recognized as contract assets and due to customers recognized ascontract liabilities for contract works as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Contractassets (*1) Contractliabilities (*2) Contractassets (*1) Contractliabilities (*2)
Nuclear power plant construction in overseas and others ~~W~~ 1,159,085 161,778 183,204 270,789
(*1) Included in trade and other receivables, net, in the consolidated statements of financial position.<br>
--- ---
(*2) Included in non-financial liabilities as advance received in the consolidated statements of financial position.<br>The revenue recognized on December 31, 2024 from the amounts included in contract liabilities at the end of the prior year is ~~W~~247,819 million.
--- ---
(4) The contracts with purchasers state that the disclosure of information related to UAE and Egypt Eldaba nuclear<br>power plant construction projects such as rate of progress, unbilled construction, impairment losses, etc. is not allowed without consent from the purchasers. The purchasers did not agree to disclose such information. Accordingly, the Group did not<br>disclose such information based on KIFRS 1115 129.2(2) as it is probable that the purchasers may file a lawsuit for breach of contract if the Group does so. Also, the Group reported to the audit committee that those items will not be disclosed in<br>the notes to the consolidated financial statements.
--- ---
Contract date Completion date
--- --- --- --- ---
Egypt Eldaba nuclear power plant construction projects August 25, 2022 April 8, 2029
(5) The Group is in discussion with the contracting parties about the prolongation costs and liquidated damages for<br>the UAE nuclear power plant project. As of December 31, 2024, the Group recognizes the amount of estimated outflow of resources embodying economic benefits related to the prolongation costs as provisions.
--- ---
(6) The operating segment information related to the contracts for which the Group recognizes revenue based onthe percentage-of-completion on a cost-based input method for the year ended December 31, 2024 is as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Effect from changes in accounting estimates Contract assets from<br>construction contracts Trade receivables from<br>construction contracts
Expectedloss onconstructioncontracts Changes inestimatesof contractrevenueand costs Amountsrecognizedin current<br>profit orloss Amountsrecognizedin futureprofit orloss Changes inestimated totalcontract costs Revenue<br>recognized fromperformance<br>obligations satisfiedin previous periods Gross Allowance<br>fordoubtful<br>accounts Gross Allowance<br>fordoubtful<br>accounts
Transmission and distribution ~~W~~ (376,333 ) (359,763 ) (16,570 ) 466,184 289,043 15,427
Electric power generation (Nuclear) 131,828 8,914 122,914 299,168 30,427
Plant maintenance & engineering Service and others 1,767 553 (4,298 ) 4,851 25,767 17,492 870,042 6 59,862 4,209
~~W~~ 1,767 (243,952 ) (355,147 ) 111,195 791,119 17,492 1,159,085 15,433 90,289 4,209

148

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

21. Intangible Assets other than Goodwill
(1) Intangible assets as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Acquisition cost Governmentgrants Accumulatedamortization Accumulatedimpairmentlosses Book<br>value
Software ~~W~~ 1,156,641 (844 ) (976,633 ) (19 ) 179,145
Copyrights, patents rights and other industrial rights 107,040 (71,231 ) (9,178 ) 26,631
Mining rights 670,083 (66,938 ) (573,723 ) 29,422
Development expenditures 1,011,550 (939 ) (937,877 ) 72,734
Intangible assets under development 96,544 (3,473 ) (8,903 ) 84,168
Usage rights of donated assets and others 592,680 (459,165 ) (136 ) 133,379
Leasehold rights 28,185 (25,216 ) (538 ) 2,431
Greenhouse gas emissions rights 135,534 135,534
Others 620,366 (229 ) (224,410 ) (12,253 ) 383,474
~~W~~ 4,418,623 (5,485 ) (2,761,470 ) (604,750 ) 1,046,918
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Acquisition cost Governmentgrants Accumulatedamortization Accumulatedimpairmentlosses Book<br>value
Software ~~W~~ 1,083,537 (413 ) (885,677 ) (19 ) 197,428
Copyrights, patents rights and other industrial rights 105,827 (73,158 ) (9,178 ) 23,491
Mining rights 643,625 (57,549 ) (553,911 ) 32,165
Development expenditures 966,530 (2,121 ) (911,096 ) 53,313
Intangible assets under development 94,916 (2,458 ) (8,903 ) 83,555
Usage rights of donated assets and others 592,739 (447,352 ) (136 ) 145,251
Leasehold rights 28,185 (24,256 ) 3,929
Greenhouse gas emissions rights 107,086 107,086
Others 599,958 (322 ) (199,865 ) (12,005 ) 387,766
~~W~~ 4,222,403 (5,314 ) (2,598,953 ) (584,152 ) 1,033,984

149

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

21. Intangible Assets other than Goodwill, Continued
(2) Changes in intangible assets for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Acquisition Disposal Amortization Impairment Others Endingbalance
Software ~~W~~ 197,841 18,249 (4 ) (88,985 ) 52,888 179,989
(Government grants) (413 ) 229 (660 ) (844 )
Copyrights, patents rights and other industrial rights 23,491 576 (44 ) (4,846 ) 7,454 26,631
Mining rights 32,165 (100 ) (5,798 ) 3,155 29,422
Development expenditures 55,434 (25,830 ) 44,069 73,673
(Government grants) (2,121 ) 1,364 (182 ) (939 )
Intangible assets under development 86,013 69,878 (14 ) (68,236 ) 87,641
(Government grants) (2,458 ) (1,015 ) (3,473 )
Usage rights of donated assets and others 145,251 36 (11,903 ) (5 ) 133,379
Leasehold rights 3,929 (960 ) (538 ) 2,431
Greenhouse gas emissions rights 107,086 123 (416 ) 28,741 135,534
Others 388,088 3,997 (394 ) (26,501 ) (364 ) 18,877 383,703
(Government grants) (322 ) 93 (229 )
~~W~~ 1,033,984 92,859 (542 ) (163,567 ) (902 ) 85,086 1,046,918
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Acquisition Disposal Amortization Impairment Others Endingbalance
Software ~~W~~ 203,007 12,837 (18 ) (86,174 ) 68,189 197,841
(Government grants) (174 ) 85 (324 ) (413 )
Copyrights, patents rights and other industrial rights 28,013 319 (70 ) (4,918 ) (180 ) 327 23,491
Mining rights 38,525 2,164 (10,289 ) 1,765 32,165
Development expenditures 54,505 (25,614 ) 26,543 55,434
(Government grants) (3,477 ) 1,356 (2,121 )
Intangible assets under development 67,722 51,282 (32,991 ) 86,013
(Government grants) (2,108 ) (350 ) (2,458 )
Usage rights of donated assets and others 157,143 (11,857 ) (35 ) 145,251
Leasehold rights 4,888 (959 ) 3,929
Greenhouse gas emissions rights 43,960 8,577 (1 ) (2 ) 54,552 107,086
Others 364,727 4,136 (119 ) (24,895 ) (103 ) 44,342 388,088
(Government grants) (67 ) 93 (348 ) (322 )
~~W~~ 956,664 79,315 (208 ) (163,174 ) (283 ) 161,670 1,033,984

150

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

21. Intangible Assets other than Goodwill, Continued
(3) Significant specific intangible assets as of December 31, 2024 and 2023 are as follows:
--- ---

In millions of won and thousands of Australian dollars

As of December 31, 2024
Type Description Currency Amount Remaining useful lives
Software S/4HANA ERP license KRW 4,276 2 years and 11 months
Copyrights, patents rights and other industrial rights Contributions to APR NRC DC KRW 12,523 3 years
Mining rights Mining rights of Bylong mine AUD — (*)
Usage rights of donated assets and others Sejong Haengbogdosi sharing charge KRW 8,697 1 year and 11 months
Right of use electricity and gas supply facility (Community district of Songdo) KRW 5,799 5 years and 6 months
Others Occupancy and use of public waters KRW 65,389 12 years and 1 month
Greenhouse gas emissions rights KRW 135,534
Business rights KRW 143,216 24 years and 11 months
(*) The carrying amount of mining rights is nil, because KEPCO Australia Pty., Ltd. and KEPCO Bylong Australia<br>Pty., Ltd. had recognized impairment losses in full.
--- ---

In millions of won and thousands of Australian dollars

As of December 31, 2023
Type Description Currency Amount Remaining useful lives
Software S/4HANA ERP license KRW 5,742 3 years and 11 months
Copyrights, patents rights and other industrial rights Contributions to APR NRC DC KRW 16,697 4 years
Mining rights Mining rights of Bylong mine AUD — (*)
Usage rights of donated assets and others Sejong Haengbogdosi sharing charge KRW 13,235 2 years and 11 months
Right of use electricity and gas supply facility (Community district of Songdo) KRW 6,853 6 years and 6 months
Others Occupancy and use of public waters KRW 70,800 13 years and 1 month
Greenhouse gas emissions rights KRW 107,086
Business rights KRW 148,964 25 years and 11 months
(*) The carrying amount of mining rights is nil, because KEPCO Australia Pty., Ltd. and KEPCO Bylong Australia<br>Pty., Ltd. had recognized impairment losses in full.
--- ---
(4) For each of the two years in the period ended December 31, 2024, the Group recognized research and<br>development expenses of ~~W~~773,931 million and ~~W~~717,561 million, respectively.
--- ---

151

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

22. Trade and Other Payables

Trade and other payables as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Current Non-current Current Non-current
Trade payables ~~W~~ 4,494,504 4,341,482
Non-trade payables 2,224,036 1,432,421 2,140,906 1,716,345
Accrued expenses 1,983,697 22,259 1,859,765 23,148
Leasehold deposits received 3,211 3,237 2,548 1,042
Other deposits received 97,276 45,012 127,933 33,723
Lease liabilities 603,492 3,095,964 612,765 3,195,115
Dividends payable 5,063 4,574
Others (*) 36 10,348 12,584
~~W~~ 9,411,315 4,609,241 9,089,973 4,981,957
(*) Details of others as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Advance received from local governments ~~W~~ 2,689 3,069
Others 36 7,659 9,515
~~W~~ 36 10,348 12,584

152

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities
(1) Borrowings and debt securities as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Current liabilities
Short-term borrowings ~~W~~ 9,122,792 10,667,335
Current portion of long-term borrowings 8,434,330 5,780,638
Current portion of debt securities 26,908,467 24,681,439
Less: current portion of discount on long-term borrowings (16,537 ) (1,152 )
Less: current portion of discount on debt securities (7,100 ) (7,176 )
Add: current portion of premium on debt securities 263
44,441,952 41,121,347
Non-current liabilities
Long-term borrowings 3,153,867 3,407,514
Debt securities 85,149,391 89,293,561
Less: discount on long-term borrowings (35,071 ) (14,683 )
Less: discount on debt securities (176,739 ) (175,909 )
88,091,448 92,510,483
~~W~~ 132,533,400 133,631,830
(2) Repayment schedules of borrowings and debt securities as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won
--- --- --- --- ---
As of December 31, 2024
Type Borrowings Debt Securities
Less than 1 year ~~W~~ 17,557,122 26,908,467
1~ 5 years 1,488,840 63,087,182
More than 5 years 1,665,027 22,062,209
~~W~~ 20,710,989 112,057,858
In millions of won
--- --- --- --- ---
As of December 31, 2023
Type Borrowings DebtSecurities
Less than 1 year ~~W~~ 16,447,973 24,681,439
1~ 5 years 1,649,696 64,342,617
More than 5 years 1,757,818 24,950,944
~~W~~ 19,855,487 113,975,000

153

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(3) Short-term borrowings as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won and thousands of
--- --- --- --- --- --- ---
As of December 31, 2024
Type Interest rate (%) Maturity Foreign<br>currency
Local short-term borrowings 3.27 ~ 4.60 2025.01.07 ~ 2025.12.31 4,953,348
Local short-term borrowings 3M CD + 0.23 ~ 0.65 4.17 2025.01.02 ~ 2025.11.20 3,934,600
Foreign short-term borrowings SOFR(1M) + 0.90 2025.08.12 40,000 58,800
Local bank overdraft 3.85 2025.04.28 100,000
Local bank overdraft Standard overdraft rate + 1.37<br> <br>4.20 2025.02.21 ~ 2025.03.28 76,044
9,122,792

All values are in US Dollars.

In millions of won and thousands of
As of December 31, 2023
Type Interest rate (%) Maturity Foreign<br>currency
Local short-term borrowings 4.00~4.84 2024.01.05 ~ 2024.12.31 6,180,339
Local short-term borrowings 3M CD+0.98~1.12 2024.05.26 ~ 2024.11.20 4,300,000
Local short-term borrowings Standard overdraft rate + 1.06 2024.02.24 30,000
Local short-term borrowings 3M bank debenture rate + 0.34 2024.12.27 50,000
Foreign short-term borrowings 5.49 2024.09.27 40,000 51,576
Foreign short-term borrowings 1M SOFR + 0.95 2024.02.16 40,000 51,576
Local bank overdraft Standard overdraft rate + 1.37<br> <br>4.63 ~ 5.34 2024.01.05 ~ 2024.02.23 3,844
10,667,335

All values are in US Dollars.

154

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(4) Long-term borrowings as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2024
Type Interest rate (%) Maturity Foreign<br>currency Local<br>currency
Local long-term borrowings
Korea Development Bank Others 0.50 2025~2044 ~~W~~ 1,424
Facility 2.60~4.94 2025~2042 51,960
Facility CB rate+0.90 2029 9,486
Hana Bank and others Commercial Paper 3M CD+0.31~1.20 2025~2029 7,550,000
Facility 4.60 2028 4,904
Facility 3yr KTB rate-1.25 2028 2,492
Export-Import Bank of Korea Project loans 1.00 2026 4,419
Facility 1.32 2025~2028 64,000
Operating funds 3M bank debenture rate+0.66 2026 50,000
Korea Energy Agency Development of power resources 3yr KTB rate-2.25<br> <br>1.75 2025~2028 7,494
Project loans 2033 1,197
Shinhan Bank and others Facility CB rate+0.90~1.10 2028~2029 13,995
Operating funds 6M bank debenture rate+0.93~1.03 2025~2027 50,000
Others 3.95 2034 67,733
Others Standard overdraft rate+1.00 2034 67,733
Kookmin Bank Facility 3M CD+1.79<br> <br>5.53~5.63 2030~2037 167,945
Operating funds 1yr bank debenture rate+0.78 2025 20,000
Woori Bank Facility 3M CD+1.90<br>5.12~5.61 2034~2042 100,071
IBK Facility 4.00~5.80 2042~2044 30,690
Nonghyup Bank Facility 5.53~5.63 2030~2041 36,351
Others Facility 3.30~6.80 2028~2042 801,687
Facility CB rate+1.10<br> <br>2.25~5.63 2028~2041 24,517
PF Refinancing CB rate+1.25 2030 5,726
PF Refinancing 4.10 2030 15,905
Securitized debts (*) 3M CD+1.80 2025 54,236
Others 4.40~7.90 2025~2039 113,362
Others 2.00~6.15 2031~2034 49,826
~~W~~ 9,367,153

155

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(4) Long-term borrowings as of December 31, 2024 and 2023 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- --- --- --- ---
As of December 31, 2024
Type Interest rate (%) Foreign<br>currency Localcurrency
Foreign long-term borrowings
Korea Energy Agency Project loans 2026 USD 8,744 ~~W~~ 12,853
Export-Import Bank of Korea and others Direct Loan and others 6M SyntheticLibor+1.80~3.20 2036 USD 72,163 106,080
Direct Loan and others 6M SyntheticLibor+2.25~3.70 2027 JOD 44,126 91,437
Facility SOFR+0.43 1M SOFR+1.83 2029~2031 USD 112,672 165,628
Korea Development Bank and others EBL 1M SOFR+0.86 2025 USD 149,592 219,900
POSCO E&C and others Shareholder’s loan 5.60~8.00 2025~2026 USD 10,145 14,914
Shareholder’s loan 8.00 2031 JOD 4,853 10,056
Samsung Life Insurance and others Syndicated Loan 3.10~8.00 2025~2032 JPY 3,937,987 36,878
Woori Bank and others Syndicated Loan 6M Tibor+1.84 2025 JPY 2,178,069 20,397
Solar Construction Lending, LLC Facility 5.00 2025 USD 28,303 41,605
Kiwoom Solar Power Professional Investor Private Placement Investment Trust V Senior borrowing 3.90 2029 EUR 38,139 58,304
IFC and others Facility 3M SOFR+1.60~1.996M SOFR+5.006.19~7.22 2026~2032 USD 772,852 1,136,092
Hanwha US Solar Private Fund 1 and others Facility 6.00 2038 USD 60,743 89,292
DBS Bank and others Facility 1M BBSY+1.40~2.25 2025 AUD 178,729 163,301
Nonghyup Bank and others Facility 10.40 2039 USD 36,943 54,307
2,221,044
11,588,197
Less: discount on long-term borrowings (51,608 )
Less: current portion of long-term borrowings (8,434,330 )
Add: current portion of discount on long-term borrowings 16,537
~~W~~ 3,118,796

All values are in Japanese Yen.

(*) The main reasons for early repayment of securitized debts as of December 31, 2024 are as follows:<br>
Type Details
--- ---
Non-payment of proceeds Where the consignor fails to pay the principal to the trustee
Guarantees for supplemental funding Where the consignor fails to fulfill guarantees for supplemental funding
Additional trust obligation Where the consignor fails to fulfill the additional trust obligation
Event of default In case the event of default occurs under the ABL loan agreement

The Group is responsible for collateral obligations (fund supplementation) and liability guarantees for entrusted assets.

156

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(4) Long-term borrowings as of December 31, 2024 and 2023 are as follows, continued:
--- ---
In millions of won
--- --- --- --- --- --- --- ---
As of December 31, 2023
Type Interest rate (%) Maturity Foreign<br>currency Localcurrency
Local long-term borrowings
Korea Development Bank Others 0.50 2024~2044 ~~W~~ 1,758
Facility 2.60~4.94 2025~2042 53,052
Facility CB rate+0.90 2029 9,985
Operating funds 1yr KDB rate+0.91 2024 40,000
Hana Bank and others Commercial Paper 3M CD+0.13~1.20 2024~2028 5,350,000
Facility 4.60 2028 6,558
Facility 3yr KTB rate-2.50 2028 3,156
Export-Import Bank of Korea Project loans 1.00 2026 7,365
Facility 1.32 2028 80,000
Operating funds 3M bank debenture rate+0.66 2026 40,000
Korea Energy Agency Development of power resources 3yr KTB rate-2.25 2.25 2024~2028 9,176
Facility 3yr KTB rate-1.50 2024 163
Project loans 2033 1,197
Shinhan Bank and others Facility CB rate+0.90~1.10 2028~2029 16,825
Operating funds 6M bank debenture rate+0.93 2025 20,000
Commercial Paper 3M CD+0.38 2025 150,000
Others 3.95 2034 73,425
Others Standard overdraft rate+1.00 2034 73,425
Kookmin Bank Facility 1yr bank debenture rate+0.78<br> <br>3M CD+1.79~2.10<br><br><br>5.04 2025~2037 186,032
Woori Bank Facility Standard overdraft rate+1.60<br> <br>3M CD+1.90<br><br><br>5.04 2034~2042 101,172
IBK Facility 4.00~5.80 2042~2044 30,690
Nonghyup Bank Facility 3M CD+2.00~2.10 2030~2041 22,517
Others Facility 3.50~6.80 2028~2042 735,722
Facility CB rate+1.10<br> <br>3M CD+2.10<br>1.75~3.30 2024~2041 51,509
PF Refinancing CB rate+1.25 2030 6,680
PF Refinancing 4.10 2030 18,556
Securitized debts (*) 3M CD+1.80 2025 52,060
Others 4.40~7.90 2025~2039 113,973
Others 1.80~4.50 2031~2034 49,879
~~W~~ 7,304,875

157

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(4) Long-term borrowings as of December 31, 2024 and 2023 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Type Interest rate (%) Foreign<br>currency Localcurrency
Foreign long-term borrowings
Korea Energy Agency Project loans 2026 USD 8,744 ~~W~~ 11,274
Export-Import Bank<br><br><br>of Korea and others Direct Loan and others 6M SyntheticLibor+1.80~3.20 2036 USD 78,347 101,020
Direct Loan and others 6M SyntheticLibor+2.25~3.70 2027 JOD 62,385 113,390
Facility 6M SyntheticLibor+1.70~2.501M SOFR+1.83 2029~2031 USD 120,916 155,909
Korea Development Bank and others EBL 1M SOFR+0.86 2025 USD 142,049 183,157
POSCO E&C and others Shareholder’s loan 5.60~8.00 2025 USD 10,770 13,887
Shareholder’s loan 8.00 2031 JOD 5,419 9,850
Samsung Life Insurance and others Syndicated Loan 3.10~8.00 2032 JPY 4,350,671 39,707
Woori Bank and others Syndicated Loan 6M Tibor+1.84 2032 JPY 2,399,088 21,896
Solar Construction Lending, LLC Facility 5.00 2025 USD 29,894 38,545
Kiwoom Solar Power Professional Investor Private Placement Investment Trust V Senior borrowing 3.90 2029 EUR 40,478 57,745
IFC and others Facility 3M SOFR+1.996M SOFR+5.003M BSBY+1.706.05~6.62 2024~2031 USD 655,922 845,746
Hanwha US Solar Private Fund 1 and others Facility 6.00 2039 USD 60,674 78,233
DBS Bank and others Facility 1M BBSY+1.40~2.25 2025 AUD 185,086 162,891
Nonghyup Bank and others Facility 10.40 2039 USD 38,799 50,027
1,883,277
9,188,152
Less: discount on long-term borrowings (15,835 )
Less: current portion of long-term borrowings (5,780,638 )
Add: current portion of discount on long-term borrowings 1,152
~~W~~ 3,392,831

All values are in Japanese Yen.

(*) The main reasons for early repayment of securitized debts as of December 31, 2023 are as follows:<br>
Type Details
--- ---
Non-payment of proceeds Where the consignor fails to pay the principal to the trustee
Guarantees for supplemental funding Where the consignor fails to fulfill guarantees for supplemental funding
Additional trust obligation Where the consignor fails to fulfill the additional trust obligation
Event of default In case the event of default occurs under the ABL loan agreement

The Group is responsible for collateral obligations (fund supplementation) and liability guarantees for entrusted assets.

158

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(5) Local debt securities as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- ---
Issue date Maturity Interest rate (%) As of December 31,2024 As of December 31,2023
Electricity Bonds 2012.03.27~2024.12.17 2025.01.03~2052.04.21 1.43~5.99 ~~W~~ 63,960,000 67,730,000
Corporate Bonds (*) 2009.10.16~2024.10.04 2025.01.10~2054.06.28 1.28~10.00 28,727,353 29,887,353
Corporate Bonds 2021.05.26~2023.12.28 2041.05.25~2043.09.15 1.71~3.78 41,578 41,578
92,728,931 97,658,931
Less: discount on local debt securities (51,149 ) (54,826 )
Less: current portion of local debt securities (22,621,584 ) (23,141,584 )
Add: current portion of discount on local debt securities 2,124 4,712
~~W~~ 70,058,322 74,467,233
(*) Among the corporate bonds, each holder of Hee Mang Sunlight Power Co., Ltd.’s private equity bonds,<br>amounting to ~~W~~1,584 million, may exercise the early redemption rights on the 5th year (March 31, 2021) from the date of issuance of the bonds and every year on March 31 thereafter, until the year before the redemption date.<br>
--- ---

159

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(6) Foreign debt securities as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- --- --- --- ---
As of December 31, 2024
Type Issue date Maturity Interest rate (%) Foreign<br>currency Local currency
FY-96 1996.04.01~1996.12.06 2026.12.01~2096.04.01 6.00~7.95 USD 278,701 ~~W~~ 409,690
FY-97 1997.01.31~1997.08.04 2027.02.01~2027.08.01 6.75~7.00 USD 314,717 462,634
FY-04 2004.04.23 2034.04.23 5.13 USD 286,920 421,772
FY-14 2014.07.30 2029.07.30 3.57 USD 100,000 147,000
FY-15 2015.06.15 2025.06.15 3.25 USD 300,000 441,000
FY-17 2017.07.25 2027.07.25 3.13 USD 300,000 441,000
FY-17 2017.10.30 2037.10.30 1.70 EUR 40,000 61,149
FY-17 2017.11.16 2037.11.16 2.36 SEK 450,000 59,954
FY-18 2018.03.13 2028.03.13 3.35 HKD 1,650,000 312,345
FY-19 2019.07.19 2027.07.19 0.05 CHF 100,000 162,638
FY-19 2019.12.19 2037.12.31 3.30~5.70 USD 326,929 480,586
FY-20 2020.02.03 2025.02.03 2.13 USD 300,000 441,000
FY-20 2020.05.06 2025.05.06 1.75 USD 500,000 735,000
FY-20 2020.06.15 2025.06.15 1.13 USD 500,000 735,000
FY-20 2020.08.03 2026.02.03 1.00 USD 300,000 441,000
FY-21 2021.01.27 2026.01.27 0.75 USD 450,000 661,500
FY-21 2021.04.27 2026.04.27 1.25 USD 500,000 735,000
FY-21 2021.08.09 2026.08.09 1.25 USD 300,000 441,000
FY-21 2021.09.24 2026.09.24 1.13 USD 300,000 441,000
FY-22 2022.04.21 2027.04.21 3.63 USD 300,000 441,000
FY-22 2022.05.06 2025.05.06 3.60 USD 500,000 735,000
FY-22 2022.06.14 2025.06.14~2027.06.14 3.63~4.00 USD 800,000 1,176,000
FY-22 2022.06.28 2025.06.28 4.13 USD 300,000 441,000
FY-22 2022.07.27 2027.07.27 4.25 USD 700,000 1,029,000
FY-22 2022.10.06 2026.04.06~2028.04.06 5.38~5.50 USD 800,000 1,176,000
FY-22 2022.10.06~2022.11.01 2032.10.06 5.16 HKD 2,350,000 444,855
FY-23 2023.06.07 2030.06.07 4.51 HKD 1,037,000 196,304
FY-23 2023.07.12 2028.07.12 4.88 USD 350,000 514,500
FY-23 2023.07.18 2028.07.18 5.00 USD 500,000 735,000
FY-23 2023.07.31 2026.07.31 5.38 USD 1,000,000 1,470,000
FY-23 2023.09.21 2026.09.21 5.38 USD 300,000 441,000
FY-24 2024.01.31 2027.01.31 4.88 USD 1,200,000 1,764,000
FY-24 2024.07.29 2029.07.29 4.63 USD 500,000 735,000
19,328,927
Less: discount on foreign debt securities (132,690 )
Less: current portion of foreign debt securities (4,286,883 )
Add: current portion of discount on foreign debt securities 4,976
~~W~~ 14,914,330

160

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

23. Borrowings and Debt Securities, Continued
(6) Foreign debt securities as of December 31, 2024 and 2023 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- --- --- --- ---
As of December 31, 2023
Type Issue date Maturity Interest rate (%) Foreign<br>currency Local<br>currency
FY-96 1996.04.01~1996.12.06 2026.12.01~2096.04.01 6.00~7.95 USD 278,701 ~~W~~ 359,357
FY-97 1997.01.31~1997.08.04 2027.02.01~2027.08.01 6.75~7.00 USD 314,717 405,796
FY-04 2004.04.23 2034.04.23 5.13 USD 286,920 369,955
FY-14 2014.07.30 2029.07.30 3.57 USD 100,000 128,940
FY-15 2015.06.15 2025.06.15 3.25 USD 300,000 386,820
FY-17 2017.07.25 2027.07.25 3.13 USD 300,000 386,820
FY-17 2017.10.30 2037.10.30 1.70 EUR 40,000 57,064
FY-17 2017.11.16 2037.11.16 2.36 SEK 450,000 58,050
FY-18 2018.03.13 2028.03.13 3.35 HKD 1,650,000 272,349
FY-19 2019.02.27 2024.02.27 0.13 CHF 200,000 305,364
FY-19 2019.06.24 2024.06.24 2.50 USD 500,000 644,700
FY-19 2019.07.19 2024.07.19~2027.07.19 0.00~0.05 CHF 300,000 458,046
FY-19 2019.10.30 2024.10.30 3M BBSW+0.97 AUD 300,000 264,024
FY-19 2019.12.19 2037.12.31 3.30~5.70 USD 342,753 441,946
FY-20 2020.02.03 2025.02.03 2.13 USD 300,000 386,820
FY-20 2020.05.06 2025.05.06 1.75 USD 500,000 644,700
FY-20 2020.06.15 2025.06.15 1.13 USD 500,000 644,700
FY-20 2020.08.03 2026.02.03 1.00 USD 300,000 386,820
FY-21 2021.01.27 2026.01.27 0.75 USD 450,000 580,230
FY-21 2021.04.27 2026.04.27 1.25 USD 500,000 644,700
FY-21 2021.08.09 2026.08.09 1.25 USD 300,000 386,820
FY-21 2021.09.24 2026.09.24 1.13 USD 300,000 386,820
FY-22 2022.04.21 2027.04.21 3.63 USD 300,000 386,820
FY-22 2022.05.06 2025.05.06 3.60 USD 500,000 644,700
FY-22 2022.06.14 2025.06.14~2027.06.14 3.63~4.00 USD 800,000 1,031,520
FY-22 2022.06.28 2025.06.28 4.13 USD 300,000 386,820
FY-22 2022.07.27 2027.07.27 4.25 USD 700,000 902,580
FY-22 2022.10.06 2026.04.06~2028.04.06 5.38~5.50 USD 800,000 1,031,520
FY-22 2022.10.06~2022.11.01 2032.10.06 5.16 HKD 2,350,000 387,891
FY-23 2023.06.07 2030.06.07 4.51 HKD 1,037,000 171,167
FY-23 2023.07.12 2028.07.12 4.88 USD 350,000 451,290
FY-23 2023.07.18 2028.07.18 5.00 USD 500,000 644,700
FY-23 2023.07.31 2026.07.31 5.38 USD 1,000,000 1,289,400
FY-23 2023.09.21 2026.09.21 5.38 USD 300,000 386,820
16,316,069
Less: discount on foreign debt securities (128,259 )
Add: addition on foreign debt securities 263
Less: current portion of foreign debt securities (1,539,855 )
Add: current portion of discount on foreign debt securities 2,464
Less: current portion of addition on foreign debt securities (263 )
~~W~~ 14,650,419
(7) Changes in borrowings and debt securities for each of the two years in the period ended December 31,2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024 For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Borrowings Debt<br>Securities Total Borrowings Debt<br>Securities Total
Beginning balance ~~W~~ 19,839,652 113,792,178 133,631,830 15,420,176 105,185,189 120,605,365
Cash flow 604,841 (4,211,164 ) (3,606,323 ) 4,406,382 8,286,542 12,692,924
Effect of exchange rate fluctuations 250,661 2,294,022 2,544,683 13,210 322,143 335,353
Others (35,773 ) (1,017 ) (36,790 ) (116 ) (1,696 ) (1,812 )
~~W~~ 20,659,381 111,874,019 132,533,400 19,839,652 113,792,178 133,631,830

161

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

24. Lease
1) Group as a lessee
--- ---
(1) Finance lease contracts
--- ---

The Group applies the short-term leases recognition exemption to its lease contracts that have a lease term of 12 months or less from the commencement date, and recognized ~~W~~152,644 million and ~~W~~172,711 million respectively, as expense for each of the two years in the period ended December 31, 2024. The Group also applies the leases of low-value assets recognition exemption to leases contracts with underlying assets considered to be low value (i.e., approximately less than ~~W~~5 million), and recognized ~~W~~3,121 million and ~~W~~4,659 million respectively, as expense for each of the two years in the period ended December 31, 2024. The Group has lease contracts for various items such as consecutive voyage charter contracts, power purchase agreements (PPA), real estate lease contracts including buildings, switchyard, and land for electric substation, vehicles, and other equipment.

(2) Right-of-use assets as of December 31, 2024 and 2023 are as follows:
In millions of won As of December 31, 2024
--- --- --- --- --- --- --- ---
Acquisition<br>Cost Accumulated<br>depreciation Book<br>value
Land ~~W~~ 1,017,114 (339,512 ) 677,602
Buildings 214,258 (108,417 ) 105,841
Structures 52,983 (12,124 ) 40,859
Machinery 54,654 (27,594 ) 27,060
Ships 3,946,265 (2,015,172 ) 1,931,093
Vehicles 59,402 (38,482 ) 20,920
Others (*) 686,400 (443,379 ) 243,021
~~W~~ 6,031,076 (2,984,680 ) 3,046,396
(*) Including a power purchase agreement (“PPA”) with CGN Yulchon Generation Co., Ltd.<br>
--- ---
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- ---
Acquisition<br>cost Accumulated<br>depreciation Book<br>value
Land ~~W~~ 937,481 (281,621 ) 655,860
Buildings 188,017 (97,444 ) 90,573
Structures 46,573 (9,217 ) 37,356
Machinery 26,453 (20,510 ) 5,943
Ships 4,137,168 (1,823,863 ) 2,313,305
Vehicles 59,208 (33,717 ) 25,491
Others (*) 646,894 (411,679 ) 235,215
~~W~~ 6,041,794 (2,678,051 ) 3,363,743
(*) Including a power purchase agreement (“PPA”) with CGN Yulchon Generation Co., Ltd.<br>
--- ---

162

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

24. Lease, Continued
(3) Changes in right-of-use assets for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase Depreciation Decrease Others Endingbalance
Land ~~W~~ 655,860 12,369 (65,245 ) (117 ) 74,735 677,602
Buildings 90,573 61,397 (48,371 ) (399 ) 2,641 105,841
Structures 37,356 4,115 (4,595 ) 3,983 40,859
Machinery 5,943 26,200 (7,083 ) 2,000 27,060
Ships 2,313,305 (363,032 ) (1,656 ) (17,524 ) 1,931,093
Vehicles 25,491 11,042 (14,167 ) (77 ) (1,369 ) 20,920
Others 235,215 17,372 (36,502 ) (3 ) 26,939 243,021
~~W~~ 3,363,743 132,495 (538,995 ) (2,252 ) 91,405 3,046,396
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase Depreciation Decrease Others Endingbalance
Land ~~W~~ 661,799 2,696 (57,461 ) (126 ) 48,952 655,860
Buildings 74,856 24,622 (32,591 ) (904 ) 24,590 90,573
Structures 23,965 49 (2,471 ) (273 ) 16,086 37,356
Machinery 835 (94 ) 5,202 5,943
Ships 2,596,863 199,538 (382,298 ) (100,798 ) 2,313,305
Vehicles 14,716 21,097 (10,464 ) (1,008 ) 1,150 25,491
Others 338,091 13,860 (51,138 ) (302 ) (65,296 ) 235,215
~~W~~ 3,711,125 261,862 (536,517 ) (2,613 ) (70,114 ) 3,363,743

163

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

24. Lease, Continued
(4) Lease liabilities as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Less than 1 year ~~W~~ 632,878 641,525
1 ~ 5 years 1,817,340 1,898,846
More than 5 years 1,670,416 1,694,729
4,120,634 4,235,100
Less: present value discounts and others (421,178 ) (427,220 )
Present value of lease payment ~~W~~ 3,699,456 3,807,880
(5) Details of the liquidity classification of lease liabilities as of December 31, 2024 and 2023 are asfollows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Current lease liabilities ~~W~~ 603,492 612,765
Non-current lease liabilities 3,095,964 3,195,115
~~W~~ 3,699,456 3,807,880
(6) Changes in lease liabilities for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase Decrease Interestexpenses Others (*) Endingbalance
Lease liabilities ~~W~~ 3,807,880 119,161 (695,466 ) 82,638 385,243 3,699,456
(*) Others include the translation effect of foreign currency lease liabilities and others.
--- ---
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase Decrease Interestexpenses Others (*) Endingbalance
Lease liabilities ~~W~~ 4,163,143 253,495 (661,665 ) 87,426 (34,519 ) 3,807,880
(*) Others include the translation effect of foreign currency lease liabilities and others.
--- ---

164

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

24. Lease, Continued
(7) Details of expense relating to lease contracts as lessee for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Depreciation of right-of-use assets ~~W~~ 538,995 536,517
Interest expenses of lease liabilities 82,638 87,426
Lease expenses for short-term leases 152,644 172,711
Lease expenses for leases of low-value assets 3,121 4,659
Variable lease payments 12,420 62,006
~~W~~ 789,818 863,319
(8) The total cash outflow related to the lease contracts, including cash outflows due to short-term leases<br>and leases of low-value asset, amounts to ~~W~~863,651 million and ~~W~~901,041 million, for each of the two years in the period ended December 31, 2024 , respectively.
--- ---

165

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

24. Lease, Continued
2) Group as a lessor
--- ---
(1) Finance lease contracts
--- ---

The Group entered into power purchase agreements (“PPA”) with Jordan Electric Power Company to provide a 373MW level Qatrana gas combined power plant over a 25-year lease term, and an 89.1MW level Fujeij wind power plant over a 20-year lease term. In addition, the Group provides 16 energy storage system installation projects and 238 energy efficiency contracts as finance leases with a lease term of 2 to 11 years. Also, the Group entered into a PPA with the Comision Federal de Electricidad in Mexico to provide for 25 years (from December 2013 to November 2038) all electricity generated from the power plant after completion of its construction and collect rates consisting of fixed costs (to recover the capital) and variable costs during the contracted period.

(2) Profits and losses related to finance leases for each of the two years in the period ended December 31,2024 are as follows:
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Finance income on the net investment in the lease ~~W~~ 120,770 118,695
(3) The maturity analysis of the lease payments receivable and reconciliation of the undiscounted lease paymentsto the net investment in the lease as of December 31, 2024 and 2023 is as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Less than 1 year ~~W~~ 213,300 189,779
1 ~ 2 years 217,747 182,743
2 ~ 3 years 204,867 179,428
3 ~ 4 years 193,379 178,074
4 ~ 5 years 184,436 168,221
More than 5 years 1,420,807 1,408,350
2,434,536 2,306,595
Less: unearned finance income (1,078,138 ) (1,057,434 )
Net investment in the lease (*) ~~W~~ 1,356,398 1,249,161
(*) Including the present value of unguaranteed residual value amounting to ~~W~~31,857 million and<br>~~W~~25,521 million, as of December 31, 2024 and 2023, respectively.
--- ---

The implicit interest rate for a lease term is determined on the lease contract date. The implicit interest rate of the finance lease contracts is from 0.00% up to 17.15% per year as of December 31, 2024 (0.00%~17.03% as of December 31, 2023).

166

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

24. Lease, Continued
(4) Changes in the allowance for doubtful accounts of finance lease receivables for each of the two years in theperiod ended December 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- ---
Beginning balance ~~W~~ 5,256 4,505
Bad debt expense 751
Reversal (1 )
Ending balance ~~W~~ 5,255 5,256

167

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

25. Employment Benefits
(1) Employment benefit obligations as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Net defined benefit asset ~~W~~ 40,425 70,187
Net defined benefit obligations 1,449,837 1,033,409
Other long-term employee benefit obligations 1,710 1,911
(2) Principal assumptions used for actuarial valuation as of December 31, 2024 and 2023 are as follows:
--- ---
For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- ---
Discount rate 3.38% ~ 5.06% 4.06%~5.44%
Future salary and benefit levels 4.83% 4.82%
Weighted average duration 9.89 years 9.52 years
(3) Details of expense relating to defined benefit plans for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Current service cost ~~W~~ 430,308 373,802
Interest cost 184,169 190,257
Expected return on plan assets (141,108 ) (163,074 )
~~W~~ 473,369 400,985

Expenses described above are recognized in those items below in the consolidated financial statements.

In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
Cost of sales ~~W~~ 340,165 285,209
Selling and administrative expenses 87,815 73,521
Others including construction-in-progress 45,389 42,255
~~W~~ 473,369 400,985

In addition, for each of the two years in the period ended December 31, 2024, benefit expenses which the Group paid for the defined contribution plan in accordance with ratio defined in the Group’s retirement benefit plan are classified as follows: ~~W~~87,998 million and ~~W~~85,560 million as cost of sales; ~~W~~16,221 million and ~~W~~16,012 million as selling and administrative expenses; and ~~W~~15,701 million and ~~W~~15,639 million as construction-in-progress and others.

168

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

25. Employment Benefits, Continued
(4) Details of defined benefit obligations as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Present value of defined benefit obligation from funded plans ~~W~~ 4,960,645 4,312,702
Fair value of plan assets (3,551,233 ) (3,349,480 )
Net liabilities incurred from defined benefit plans ~~W~~ 1,409,412 963,222
(5) Changes in the present value of defined benefit obligations for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Beginning balance ~~W~~ 4,312,702 3,776,715
Current service cost 430,308 373,802
Interest cost 184,169 190,257
Remeasurement component 425,671 409,635
Past service cost
Actual payments (392,336 ) (437,734 )
Others 131 27
Ending balance ~~W~~ 4,960,645 4,312,702
(6) Changes in the fair value of plan assets for each of the two years in the period ended December 31,2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Beginning balance ~~W~~ 3,349,480 3,149,414
Expected return 141,108 163,074
Remeasurement component (10,030 ) 4,777
Contributions by the employers 254,763 188,566
Actual payments (184,088 ) (156,351 )
Ending balance ~~W~~ 3,551,233 3,349,480

169

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

25. Employment Benefits, Continued
(7) Details of the fair value of plan assets as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Equity instruments ~~W~~ 2,308 5,326
Debt instruments 413,522 697,907
Bank deposits 452,158 611,821
Others (*) 2,683,245 2,034,426
~~W~~ 3,551,233 3,349,480
(*) Others consist of various financial instruments managed by external asset management companies.<br>
--- ---

For each of the two years in the period ended December 31, 2024, actual returns on plan assets amounted to ~~W~~131,078 million and ~~W~~167,851 million, respectively.

(8) Remeasurement components recognized in other comprehensive income (loss) for each of the two years in theperiod ended December 31, 2024 are as follows:
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- ---
Actuarial loss from changes in financial assumptions ~~W~~ 320,582 429,810
Actuarial loss (gain) from experience adjustments, etc. 105,089 (20,175 )
Expected loss (return) 10,030 (4,777 )
~~W~~ 435,701 404,858

Remeasurement component recognized as other comprehensive income or loss is included in retained earnings.

In addition, loss on accumulated remeasurement component amounting to ~~W~~95,694 million and gain on accumulated remeasurement component amounting to ~~W~~29,229 million have been recognized as other comprehensive income or loss as of December 31, 2024 and 2023, respectively.

170

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

26. Provisions
(1) Provisions as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Current Non-current Current Non-current
Employment benefits
Provisions for employment benefits ~~W~~ 1,093,625 999,691
Litigation
Litigation provisions 9,350 479,071 5,299 171,719
Decommissioning cost
Nuclear plants 79,501 23,192,872 81,684 21,565,203
Spent fuel 799,384 2,124,361 940,585 1,985,149
Radioactive waste 84,485 1,677,306 67,572 1,840,513
PCBs 39,389 57,944
Other recovery provisions 50,407 36,082
Others
Power plant regional support program 130,256 130,034
Transmission regional support program (*) 302,631 256,006
Provisions for financial guarantee 26,440 4,484 25,534 24,458
Provisions for RPS 36,074
Provisions for greenhouse gas emissions obligations 156,463 18,672
Others 111,836 269,144 92,974 199,976
~~W~~ 2,793,971 27,837,034 2,654,125 25,881,044
(*) The Group recognized W46,444 and W38,997 million as of December 31, 2024 and 2023, respectively, as a<br>third-party reimbursement asset in relation to the provisions on the transmission regional support programs.
--- ---
(2) Changes in provisions for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase inprovision Payment Reversal Others Endingbalance
Employment benefits
Provisions for employment benefits ~~W~~ 999,691 1,226,957 (1,127,746 ) (5,379 ) 102 1,093,625
Litigation
Litigation provisions 177,018 373,328 (26,040 ) (35,885 ) 488,421
Decommissioning cost
Nuclear plants 21,646,887 1,692,508 (66,971 ) (51 ) 23,272,373
Spent fuel 2,925,734 842,753 (463,388 ) (381,354 ) 2,923,745
Radioactive waste 1,908,085 113,342 (56,907 ) (202,729 ) 1,761,791
PCBs 57,944 7,049 (25,604 ) 39,389
Other recovery provisions 36,082 4,479 (879 ) 10,725 50,407
Others
Power plant regional support program 130,034 55,761 (55,539 ) 130,256
Transmission regional support program 256,006 202,882 (156,257 ) 302,631
Provisions for financial guarantee 49,992 11,347 (25,723 ) (5,086 ) 394 30,924
Provisions for RPS 36,074 891,143 (862,039 ) (65,178 )
Provisions for greenhouse gas emissions obligations 18,672 164,438 (17,659 ) (5,611 ) (3,377 ) 156,463
Others 292,950 294,954 (126,693 ) (2,441 ) (77,790 ) 380,980
~~W~~ 28,535,169 5,880,941 (3,011,445 ) (703,663 ) (69,997 ) 30,631,005

171

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

26. Provisions, Continued
(2) Changes in provisions for each of the two years in the period ended December 31, 2024 are as follows,continued:
--- ---
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Increase inprovision Payment Reversal Others Endingbalance
Employment benefits
Provisions for employment benefits ~~W~~ 1,045,058 834,102 (877,933 ) (1,536 ) 999,691
Litigation
Litigation provisions 181,179 151,189 (67,478 ) (87,872 ) 177,018
Decommissioning cost
Nuclear plants 23,035,427 572,379 (62,035 ) (1,898,935 ) 51 21,646,887
Spent fuel 1,426,918 1,877,827 (379,011 ) 2,925,734
Radioactive waste 1,990,007 89,054 (86,823 ) (84,153 ) 1,908,085
PCBs 88,359 1,699 (17,100 ) (15,014 ) 57,944
Other recovery provisions 32,770 1,319 (432 ) 2,425 36,082
Others
Power plant regional support program 144,504 51,814 (66,284 ) 130,034
Transmission regional support program 239,235 177,520 (160,749 ) 256,006
Provisions for financial guarantee 67,240 10,215 (25,174 ) (2,251 ) (38 ) 49,992
Provisions for RPS 24,339 620,855 (609,120 ) 36,074
Provisions for greenhouse gas emissions obligations 298,876 77,207 (298,859 ) (58,552 ) 18,672
Others 217,781 181,756 (101,601 ) (3,816 ) (1,170 ) 292,950
~~W~~ 28,791,693 4,646,936 (2,752,599 ) (2,152,129 ) 1,268 28,535,169
(3) Greenhouse gas emissions rights (allowances) and obligations:
--- ---
(i) Allowances allocated free of charge from the government for each compliance year in the commitment period as of<br>December 31, 2024 are as follows:
--- ---
In ten thousands of tons(tCO2-eq) 3rd planned period
--- --- --- --- --- --- --- --- --- --- --- --- ---
2021 2022 2023 2024 2025 Total
Allowances received free of charge from the government 15,362 14,495 14,729 12,103 12,103 68,792
(ii) Changes in greenhouse gas emissions rights for each of the two years in the period ended December 31, 2024<br>are as follows:
--- ---
In ten thousands of tons(tCO2-eq), millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
3rd commitment period
2023 2024 2025 Total
Quantity Amount Quantity Amount Quantity Amount Quantity Amount
Beginning (*) 14,829 25,128 11,952 99,968 9,288 6,873 36,069 131,969
Purchase (Sell) 1,536 135,837 1,674 174,991 3,210 310,828
Government Submission (14,780 ) (39,968 ) (657 ) (53,727 ) (15,437 ) (93,695 )
Carry Forward (Borrowing) (1,585 ) (129,188 ) 1,043 44,430 828 128,417 286 43,659
ETC 8,191 (53,693 ) 244 (45,258 )
Ending 14,012 211,969 10,116 135,534 24,128 347,503
(*) Changes in emission rights due to allowances additionally allocated or cancelled are reflected.<br>
--- ---

172

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

26. Provisions, Continued
(3) Greenhouse gas emissions rights and obligations, continued:
--- ---
(ii) Changes in greenhouse gas emissions rights for each of the two years in the period ended December 31, 2024<br>are as follows, continued:
--- ---
In ten thousands tons(tCO2-eq), millions of Won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
3rd commitment period
2022 2023 2024 2025 Total
Quantity Amount Quantity Amount Quantity Amount Quantity Amount Quantity Amount
Beginning (*) 14,704 192,005 14,204 18,785 8,088 12,884 8,065 12,292 45,061 235,966
Purcahse (Sell) 1,315 135,040 707 67,506 73 14,839 2,095 217,385
Government Submission (15,972 ) (302,918 ) (484 ) (39,837 ) (16,456 ) (342,755 )
Carry Forward (Borrowing) (45 ) (24,127 ) (231 ) (28,266 ) 568 79,430 292 27,037
ETC (2 ) 6,940 (7,185 ) (5,419 ) (2 ) (5,664 )
Ending 14,196 25,128 8,729 99,968 8,065 6,873 30,990 131,969
(*) Changes in emission rights due to allowances additionally allocated or cancelled are reflected.<br>
--- ---
(iii) The Group does not have greenhouse gas emissions rights pledged as collateral as of December 31, 2024.<br>
--- ---
(iv) The Group does not hold any greenhouse gas emissions rights prepared for generating a profit from short-term<br>fluctuations in price as of December 31, 2024.
--- ---
(v) The estimated greenhouse gas emission of the Group for the year ended December 31, 2024 is 14,432 ten<br>thousand tons.
--- ---

173

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

27. Government Grants
(1) Government grants as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Land ~~W~~ 27,403 27,404
Buildings 41,718 46,227
Structures 149,737 157,881
Machinery 105,546 119,824
Vehicles 2,745 2,837
Equipment 3,915 5,932
Tools 1,306 62
Construction-in-progress 223,566 173,474
Investment properties 22 22
Software 844 413
Development expenditures 939 2,121
Intangible assets under development 3,473 2,458
Other intangible assets 229 322
~~W~~ 561,443 538,977

174

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

27. Government Grants, Continued
(2) Changes in government grants for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Receipt Acquisition Offset theitems ofdepreciationexpense andothers Disposal Revenue Others Endingbalance
Cash ~~W~~ 59,503 4,789 (64,292 )
Land 27,404 (1 ) 27,403
Buildings 46,227 (4,508 ) (1 ) 41,718
Structures 157,881 (9,458 ) (1,330 ) 2,644 149,737
Machinery 119,824 (16,076 ) (522 ) 2,320 105,546
Vehicles 2,837 (1,233 ) (8 ) 1,149 2,745
Equipment 5,932 (2,118 ) 101 3,915
Tools 62 (341 ) 1,585 1,306
Construction-in-progress 173,474 (6,806 ) (75 ) 56,973 223,566
Investment properties 22 (1 ) 1 22
Software 413 (229 ) 660 844
Development expenditures 2,121 (1,364 ) 182 939
Intangible assets under development 2,458 1,015 3,473
Other intangible assets 322 (93 ) 229
~~W~~ 538,977 59,503 (6,806 ) (35,421 ) (1,936 ) 4,789 2,337 561,443
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Receipt Acquisition Offset theitems ofdepreciationexpense andothers Disposal Revenue Others Endingbalance
Cash ~~W~~ 57,207 239 (57,446 )
Land 27,405 (1 ) 27,404
Buildings 50,437 (5,070 ) 860 46,227
Structures 165,608 (9,562 ) (1,611 ) 3,446 157,881
Machinery 127,126 (17,413 ) (1,230 ) 11,341 119,824
Vehicles 2,045 (960 ) 1,752 2,837
Equipment 6,608 (2,011 ) 1,335 5,932
Tools 99 (38 ) 1 62
Construction-in-progress 135,926 (5,544 ) 43,092 173,474
Investment properties 21 (1 ) 2 22
Software 174 (85 ) 324 413
Development expenditures 3,477 (1,356 ) 2,121
Intangible assets under development 2,108 350 2,458
Other intangible assets 67 (93 ) 348 322
~~W~~ 521,101 57,207 (5,544 ) (36,589 ) (2,842 ) 239 5,405 538,977

175

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

27. Government Grants, Continued
(3) Changes in government grants for specific business projects for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of Won 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Department Business<br><br><br>Name Description Period Budget BeginningBalance Received Used Return Others EndingBalance
Ministry of Trade, Industry and Energy Temporary electricity bill support for small business owners Temporary electricity bill support for small business owners 2021.04.01 ~ 2022.06.30 211,235 1,068 (791 ) (277 )
Ministry of Employment and labor Support for the installation of workplace daycare centers Support for the installation of workplace daycare centers 2023.01.01 ~ 2023.12.31 1,491 2,703 2,730
Ministry of Trade, Industry and Energy Support for underground power line installation Daebul Industrial Complex Underground Power Line Project (Phase 1) (Subsidy) 2023.01.01 ~ 2025.12.31 3,492 3,492 (3,492 )
Ministry of Trade, Industry and Energy Construction of the Integrated Control System for Renewable Energy in Transmission Area Construction of the Integrated Control System for Renewable Energy in Transmission Area 2023.01.01 ~ 2023.12.31 490 213 (213 )
Ministry of Trade, Industry and Energy Construction of the Integrated Control System for Renewable Energy in Power Distribution Sector Construction of the Integrated Control System for Renewable Energy in Power Distribution Sector 2023.01.01 ~ 2023.12.31 2,510 2 203 (205 )
Ministry of SMEs and Startup Temporary electricity bill support for small business owners Temporary electricity bill support for small business owners (2024) 2024.12.15 ~ 2024.12.31 178,753 156,058 (127,984 ) 28,074
Ministry of Trade, Industry and Energy Electricity supply business in rural areas Electricity supply business in rural areas (Support for Losses in Local Government Operations) 2024.01.01 ~ 2024.12.31 161,429 170,276 (170,276 )
Ministry of Trade, Industry and Energy Renewable Energy Generation Difference Support Renewable Energy Generation Difference Support (2024) 2024.01.01 ~ 2024.12.31 52,170 51,413 (51,413 )
Ministry of Trade, Industry and Energy Operating expenses for regional projects around the power plant Operating expenses for regional projects around the power plant (2024) 2024.01.02 ~ 2024.12.31 428 61 (61 )

176

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

27. Government Grants, Continued
(3) Changes in government grants for specific business projects for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of Won 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Business Beginning Ending
Department Name Description Period Budget Balance Received Interest Used Return Others Balance
Ministry of Trade, Industry and Energy Temporary electricity bill support for small business owners Temporary electricity bill support for small business owners 2021.04.01 ~ 2022.06.30 211,235 1,120 (51 ) 1,069
Ministry of Trade, Industry and Energy Construction of the Integrated Control System for Renewable Energy in Transmission Area Construction of the Integrated Control System for Renewable Energy in Transmission Area 2022.01.01 ~ 2023.09.30 940 798 (798 )
Ministry of Trade, Industry and Energy 2023 Electricity supply business in rural areas (New Electricity Supply Construction Fees) Electricity supply business in rural areas ((New Electricity Supply Construction Fees) 2023.01.01 ~ 2024.01.31 2 35 (35 )
Ministry of Trade, Industry and Energy 2023 Electricity supply business in rural areas (Reservation of Financial Loans) Electricity supply business in rural areas (Reservation of Financial Loans) 2023.01.01 ~ 2024.01.31 166 166 (166 )
Ministry of Trade, Industry and Energy 2023 Electricity supply business in rural areas (Support for operational deficits of electricity providers) Electricity supply business in rural areas (Support for operational deficits of electricity providers) 2023.01.01 ~ 2024.01.31 158,275 149,259 (149,259 )
Ministry of Trade, Industry and Energy 2023 Electricity supply business in rural areas (Technical support for local governments and residents) Electricity supply business in rural areas (Technical support for local governments and residents) 2023.01.01 ~ 2024.01.31 1,176 1,862 (1,862 )
Ministry of Trade, Industry and Energy 2023 Electricity supply business in rural areas (Support for Losses in Local Government Operations) Electricity supply business in rural areas (Support for Losses in Local Government Operations) 2023.01.01 ~ 2024.01.31 12,036 8,619 (8,619 )
Ministry of Trade, Industry and Energy 2023 Establishment of eco-friendly microgrid in island areas Establishment of eco-friendly microgrid in island areas 2023.01.01 ~ 2024.01.31 3,871 26,091 (26,091 )
Ministry of Trade, Industry and Energy 2023 Operating expenses for regional projects around the power plant Operating expenses for regional projects around the power plant 2023.01.01 ~ 2023.12.31 361 51 (51 )
Ministry of Trade, Industry and Energy 2023 Renewable Energy Generation Difference Support Renewable Energy Generation Difference Support 2023.01.01 ~ 2023.12.31 78,311 69,599 (69,599 )
Ministry of Trade, Industry and Energy Energy Cashback Energy Cashback 2023.01.01 ~ 2023.12.31 2,560 2,560 (2,560 )
Ministry of Trade, Industry and Energy Safety inspection of general electrical equipment Safety inspection of general electrical equipment 2023.01.01 ~ 2023.04.18 495 635 (635 )
Ministry of Trade, Industry and Energy Establishment of Integrated Control System for Renewable Energy in the power distribution sector Establishment of Integrated Control System for Renewable Energy in the Power Distribution Sector 2023.01.01 ~ 2023.12.31 2,510 680 2 (680 ) (1,832 ) 1,832 2
Ministry of Employment and Labor Support for the installation of workplace daycare centers Support for the installation of workplace daycare centers 2023.01.01 ~ 2023.12.31 1,490 270 (270 )

177

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

28. Deferred Revenue

Deferred revenues for each of the two years in the period ended December 31, 2024 are as follows which are included in current andnon-current non-financial liabilities in the consolidated statements of financial position:

In millions of won As of December 31, 2024 As of December 31, 2023
Beginning balance ~~W~~ 11,548,855 10,974,845
Increase 2,924,341 1,317,061
Recognized as revenue (820,631 ) (743,051 )
Ending balance ~~W~~ 13,652,565 11,548,855
29. Non-financial Liabilities
--- ---

Non-financial liabilities as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Current Non-current Current Non-current
Advance received ~~W~~ 3,531,207 354,218 5,204,113 288,686
Unearned revenue 37,062 14,910 36,716 12,108
Deferred revenue 776,988 12,875,577 734,825 10,814,030
Withholdings 271,425 2,296 259,755 2,369
Others 1,710,459 34,519 1,646,254 78,807
~~W~~ 6,327,141 13,281,520 7,881,663 11,196,000

178

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

30. Contributed Capital
(1) Details of share capital as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won except share information
--- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2024
Shares<br>authorized Shares issued Par value<br>per share<br>(in won) Owned bygovernment (*) Owned byothers Total
Common shares 1,200,000,000 641,964,077 ~~W~~ 5,000 1,640,385 1,569,435 3,209,820
(*) Korea Development Bank’s interest of ~~W~~1,056,176 million is included.<br>
--- ---
In millions of won except share information
--- --- --- --- --- --- --- --- --- --- --- --- ---
As of December 31, 2023
Shares<br>authorized Shares issued Par value<br>per share<br>(in won) Owned bygovernment (*) Owned byothers Total
Common shares 1,200,000,000 641,964,077 ~~W~~ 5,000 1,640,385 1,569,435 3,209,820
(*) Korea Development Bank’s interest of ~~W~~1,056,176 million is included.<br>
--- ---
(2) Details in the number of floating capital stock for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
Number of shares For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Beginning balance 641,964,077 641,964,077
Ending balance 641,964,077 641,964,077
(3) Details of share premium as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Share premium ~~W~~ 843,758 843,758

179

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

31. Retained Earnings and Dividends Paid
(1) Details of retained earnings as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Legal reserve (*) ~~W~~ 1,604,910 1,604,910
Voluntary reserves 2,812,313
Retained earnings before appropriations 18,523,337 11,921,039
Retained earnings ~~W~~ 20,128,247 16,338,262
(*) The KEPCO Act (Article 14) requires KEPCO to appropriate a legal reserve equal to at least 20 percent of net<br>income for each accounting period until the reserve equals 50 percent of KEPCO’s common stock. The legal reserve is not available for cash dividends; however, this reserve may be credited to paid-in capital or offset against accumulated deficit<br>by the resolution of the shareholders.
--- ---
(2) Details of voluntary reserves as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Reserve for investment on social overhead capital ~~W~~ 2,272,313
Reserve for research and human development 330,000
Reserve for business expansion
Reserve for equalizing dividends 210,000
~~W~~ 2,812,313
(3) Changes in retained earnings for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Beginning balance ~~W~~ 16,338,262 21,431,300
Profit (loss) for the year attributed to owners of the controlling company 3,491,698 (4,822,549 )
Changes in equity method retained earnings (6,346 ) (27,349 )
Remeasurements of defined benefit liability, net of tax (281,761 ) (242,987 )
Transfer of revaluation reserve 586,394
Others (153 )
Ending balance ~~W~~ 20,128,247 16,338,262

180

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

31. Retained Earnings and Dividends Paid, Continued
(4) Dividends paid for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- ---
Number of<br>shares issued Number of<br>treasurystocks Number of<br>shares eligible for<br>dividends Dividends paid<br>per share<br>(in won) Dividends<br>paid
Common shares 641,964,077 641,964,077 ~~W~~
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Number of<br>shares issued Number of<br>treasurystocks Number of<br>shares eligible for<br>dividends Dividends paid<br>per share<br>(in won) Dividends<br>paid
Common shares 641,964,077 641,964,077 ~~W~~
(5) Changes in retained earnings of investments in associates and joint ventures for each of the two years inthe period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Beginning balance ~~W~~ (11,074 ) 16,275
Changes (6,346 ) (27,349 )
Ending balance ~~W~~ (17,420 ) (11,074 )
(6) Changes in remeasurement components related to defined benefit liability for each of the two years in theperiod ended December 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Beginning balance ~~W~~ 29,229 614,805
Changes (421,327 ) (376,121 )
Income tax effect 139,566 133,134
Transfer to reserve for business expansion 156,838 (342,589 )
Ending balance ~~W~~ (95,694 ) 29,229

181

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

32. Statement of Appropriation of Retained Earnings (Disposition of Deficit)

For the year ended December 31, 2023, KEPCO’s accumulated deficits were disposed on March 26, 2024. For the year ended December 31, 2024, KEPCO’s retained earnings are expected to be appropriated on March 26, 2025. The statements of appropriation of retained earnings (disposition of deficit) of KEPCO, the controlling company, for each of the two years in the period ended December 31, 2024, respectively, are as follows:

In millions of won except for dividends per share For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
I. Unappropriated retained earnings (undisposed deficits)
Unappropriated retained earnings (undisposed deficits) carried over from prior years ~~W~~
Net loss 829,339 (3,249,233 )
Remeasurement of the defined benefit plan (125,132 ) (149,474 )
704,207 (3,398,707 )
II. Transfer from voluntary reserves 3,398,707
III. Subtotal ( I+II ) 704,207
IV. Appropriation of retained earnings
Dividends (136,738 )
Voluntary reserves (567,469 )
(704,207 )
V.Unappropriated retained earnings (undisposed deficits) to be carried over forward to subsequent<br>year

182

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

33. Hybrid Bonds

Hybrid bonds classified as equity (non-controlling interests) as of December 31, 2024 and 2023 are as follows:

In millions of won
Issuer Hybrid bond Issued date Maturity Yield (%) As ofDecember 31, 2024 As ofDecember 31, 2023
Korea South-East Power Co., Ltd. (*) 2nd hybrid bond 2012.12.07 2042.12.06 5.10 ~~W~~ 230,000 230,000
Expense of issuance (627 ) (627 )
~~W~~ 229,373 229,373
(*) Bondholders may not require prepayment in any case, and the Group has a call option to repay all of these bonds<br>on or after 12 years from the date of issuance of the bonds, or on each interest payment date henceforth. In addition, there is a step-up clause from the date of the initial call option exercise. Although these instruments have contractual maturity<br>dates, the contractual agreements allow the Group to indefinitely extend the maturity dates and defer the payment of interest without modification to the other terms of the instruments. When the Group decides not to pay dividends on common shares,<br>they are not required to pay interest on the hybrid bonds. From December 7, 2024, the date when the call option become exercisable for the first time, the interest rate has increased from 4.44% to 5.10% due to the application of the step-up<br>provision.
--- ---

183

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

34. Other Components of Equity
(1) Other components of equity as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Other capital surplus ~~W~~ 1,600,812 1,600,801
Accumulated other comprehensive income 1,424,014 557,430
Other equity 12,708,585 13,294,972
~~W~~ 15,733,411 15,453,203
(2) Changes in other capital surplus for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year ended December 31, 2024 For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Gains ondisposal oftreasurystocks Others Subtotal Gains on<br>disposal of<br>treasury<br>stocks Others Subtotal
Beginning balance ~~W~~ 387,524 1,213,277 1,600,801 387,524 881,045 1,268,569
Changes in consolidation scope (48 ) (48 )
Additional paid-in capital of subsidiaries (7 ) (7 )
Transactions between<br><br><br>consolidated entities 18 18 332,280 332,280
Ending balance ~~W~~ 387,524 1,213,288 1,600,812 387,524 1,213,277 1,600,801

184

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

34. Other Components of Equity, Continued
(3) Changes in accumulated other comprehensive income (loss) for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Financial assets atfair value throughothercomprehensiveincome<br>valuation reserve Shares of othercomprehensive<br>income of<br>investments in<br>associates and jointventures Reservefor overseasoperations<br>translationcredit Reserve for<br>gain (loss) onvaluation of<br>derivatives Total
Beginning balance ~~W~~ (20,002 ) 943,733 (331,570 ) (34,731 ) 557,430
Changes in the unrealized fair value of financial assets at FVOCI, net of tax 100,759 100,759
Shares of other comprehensive income of associates and joint ventures, net of tax 654,225 654,225
Foreign currency translation of foreign operations, net of tax 99,624 99,624
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of<br>tax 11,976 11,976
Ending balance ~~W~~ 80,757 1,597,958 (231,946 ) (22,755 ) 1,424,014
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Financial assets atfair value throughothercomprehensiveincome<br>valuation reserve Shares of othercomprehensive<br>income of<br>investments in<br>associates and jointventures Reservefor overseasoperations<br>translationcredit Reserve for<br>gain (loss) onvaluation of<br>derivatives Total
Beginning balance ~~W~~ 11,510 820,739 (305,620 ) (29,653 ) 496,976
Changes in the unrealized fair value of financial assets at FVOCI, net of tax (31,665 ) (31,665 )
Shares of other comprehensive income of associates and joint ventures, net of tax 122,994 122,994
Foreign currency translation of foreign operations, net of tax (25,950 ) (25,950 )
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of<br>tax (5,078 ) (5,078 )
Others 153 153
Ending balance ~~W~~ (20,002 ) 943,733 (331,570 ) (34,731 ) 557,430
(4) Other equity as of December 31, 2024 and 2023 is as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Statutory revaluation reserve ~~W~~ 12,708,704 13,295,098
Changes in other equity (119 ) (126 )
~~W~~ 12,708,585 13,294,972

185

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

35. Sales

Details of sales for each of the two years in the period ended December 31, 2024 are as follows:

In millions of won For the year ended December 31, 2024 For the year ended December 31, 2023
Domestic Overseas Total Domestic Overseas Total
[Type of goods and services]
Sales of goods ~~W~~ 90,659,090 359,622 91,018,712 85,588,151 351,986 85,940,137
Electricity 88,889,764 88,889,764 82,954,778 82,954,778
Heat supply 363,154 363,154 440,435 440,435
Others 1,406,172 359,622 1,765,794 2,192,938 351,986 2,544,924
Sales related to rendering of services 482,251 228,194 710,445 467,661 283,217 750,878
Sales related to construction services 145,496 703,612 849,108 186,996 598,399 785,395
Revenue related to transfer of assets from customers 820,631 820,631 743,051 743,051
~~W~~ 92,107,468 1,291,428 93,398,896 86,985,859 1,233,602 88,219,461
[Timing of revenue recognition]
Performance obligations satisfied at a point in time ~~W~~ 90,659,090 359,622 91,018,712 85,588,151 351,986 85,940,137
Performance obligations satisfied over time 1,448,378 931,806 2,380,184 1,397,708 881,616 2,279,324
~~W~~ 92,107,468 1,291,428 93,398,896 86,985,859 1,233,602 88,219,461

186

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

36. Selling and Administrative Expenses
(1) Selling and administrative expenses for each of the two years in the period ended December 31, 2024 areas follows:
--- ---
In millions of won For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
--- --- --- --- ---
Salaries ~~W~~ 1,180,379 1,098,460
Retirement benefit expense 104,036 89,533
Welfare and benefit expense 151,840 152,836
Insurance expense 30,460 27,726
Depreciation 231,114 241,533
Amortization of intangible assets 88,920 88,648
Bad debt expense 35,232 62,808
Commission 429,977 460,644
Advertising expense 32,205 30,305
Training expense 8,911 7,900
Vehicle maintenance expense 9,218 9,044
Publishing expense 2,857 3,281
Business development expense 2,687 2,559
Rent expense 48,474 44,807
Telecommunication expense 9,406 7,813
Transportation expense 1,108 1,099
Taxes and dues 98,714 112,449
Expendable supplies expense 6,976 7,252
Water, light and heating expense 15,009 16,207
Repairs and maintenance expense 197,942 154,062
Ordinary development expense 217,975 217,319
Travel expense 18,726 16,265
Clothing expense 11,216 10,450
Survey and analysis expense 871 1,068
Membership fee 1,709 1,503
Others 134,064 196,011
~~W~~ 3,070,026 3,061,582
(2) Other selling and administrative expenses for each of the two years in the period ended December 31,2024 are as follows:
--- ---
In millions of won For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
--- --- --- --- ---
Accommodation development expenses ~~W~~ 48,902 49,988
Miscellaneous wages 33,020 97,474
Litigation and filing expenses 22,578 19,204
Compensation for damages 7,653 4,300
Outsourcing expenses 1,368 3,511
Reward expenses 2,764 2,770
Overseas market development expenses 1,378 1,503
Others 16,401 17,261
~~W~~ 134,064 196,011

187

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

37. Other Income and Expenses
(1) Other income for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Reversal of other provisions ~~W~~ 35,317 79,001
Reversal of other allowance for bad debt 17,699 1,941
Gains on government grants 4,789 239
Gains on assets contributed 29,968 24,183
Gains on liabilities exempted 504 854
Compensation and reparations revenue 84,682 93,785
Revenue from foundation fund 58 60
Rental income 204,277 210,972
Others 100,060 121,816
~~W~~ 477,354 532,851
(2) Details of “others” of other income for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Refund of claim for rectification ~~W~~ 1,512 1,054
Maintenance expenses on lease building 109 124
Training expenses 2,486 1,946
Deposit redemption 252 100
Reversal of expenses on litigation 45,751 44,197
Revenue on royalty fee 422
Gains on guarantee contracts 85 16
Others 49,865 73,957
~~W~~ 100,060 121,816

188

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

37. Other Income and Expenses, Continued
(3) Other expenses for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Compensation and indemnification expense ~~W~~ 234 34
Accretion expenses of other provisions 5,841 4,962
Depreciation expenses on investment properties 682 493
Depreciation expenses on idle assets 3,642 3,683
Other bad debt expense 42,776 40,683
Donations 324,694 169,748
Others 87,819 39,302
~~W~~ 465,688 258,905
(4) Details of “others” of other expense for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Operating expenses related to the idle assets ~~W~~ 1,741 1,494
Research grants 662 174
Supporting expenses on farming and fishing village 15,344 13,249
Operating expenses on fitness center 10,116 8,921
Expenses on adjustment of research and development grants 392 388
Taxes and dues 18,065 1,935
Expenses on R&D supporting 41 9
Others 41,458 13,132
~~W~~ 87,819 39,302

189

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

38. Other Gains (Losses)
(1) Composition of other gains (losses) for each of the two years in the period ended December 31, 2024 areas follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Other gains
Gains on disposal of property, plant and equipment ~~W~~ 85,990 32,196
Gains on disposal of intangible assets 41 136
Reversal of impairment loss on other current assets 16,035
Gains on foreign currency translation 77,269 27,123
Gains on foreign currency transactions 74,520 139,077
Gains on insurance proceeds 3,411 6,785
Others 273,745 346,795
Other losses
Losses on disposal of property, plant and equipment (112,018 ) (98,120 )
Losses on disposal of intangible assets (111 ) (71 )
Loss on impairment of property, plant and equipment (11,240 ) (17,031 )
Loss on impairment of intangible assets (902 ) (2,865 )
Losses on foreign currency translation (29,225 ) (3,901 )
Losses on foreign currency transactions (148,381 ) (165,187 )
Others (128,215 ) (258,286 )
~~W~~ 84,884 22,686
(2) Details of “others” of other gains for each of the two years in the period ended December 31,2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Gains on disposal of inventories ~~W~~ 18,789 20,447
Gains on proxy collection of TV license fee 33,191 41,372
Gains on compensation of impaired electric poles 688 1,138
Gains on harbor facilities dues 3,710 3,666
Gains on technical fees 1,836 3,071
Reversal of occupation development training fees 1,466 1,452
Gains on disposal of waste 2,950 3,815
Gains on tax rebate 206 374
Gains on other commission 1,945 2,044
Others 208,964 269,416
~~W~~ 273,745 346,795
(3) Details of “others” of other losses for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Losses on valuation of inventories ~~W~~ 9,941 9,936
Losses on disposal of inventories 15,494 5,471
Losses due to disaster 5,761 7,138
Losses on rounding adjustment of electric charge surtax 1,351 1,332
Others 95,668 234,409
~~W~~ 128,215 258,286

190

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

39. Finance Income
(1) Finance income for each of the two years in the period ended December 31, 2024 is as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Interest income ~~W~~ 467,525 429,620
Dividends income 70,601 25,941
Gains on disposal of financial assets 45,493 13,162
Gains on valuation of financial assets at fair value through profit or loss 83,408 152,322
Gains on valuation of derivatives 2,231,533 382,611
Gains on transaction of derivatives 362,119 268,618
Gains on foreign currency translation 142,723 104,901
Gains on foreign currency transactions 35,893 42,886
Others 8,882 4,970
~~W~~ 3,448,177 1,425,031
(2) Interest income included in finance income for each of the two years in the period ended December 31,2024 is as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- ---
Cash and cash equivalents ~~W~~ 102,505 100,205
Financial assets at fair value through profit or loss 54,385 65,470
Financial assets at amortized cost 2,859 2,929
Loans 45,511 44,029
Short-term financial instrument 31,766 34,260
Long-term financial instrument 20,562 14,183
Other financial assets 262 241
Trade and other receivables 209,675 168,303
~~W~~ 467,525 429,620

191

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

40. Finance Expenses
(1) Finance expenses for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
--- --- --- --- ---
Interest expense ~~W~~ 4,665,095 4,451,659
Losses on sale of financial assets 434 1
Losses on valuation of financial assets at fair value through profit or loss 14,247 24,015
Losses on valuation of derivatives 127,822 148,412
Losses on transaction of derivatives 59,462 178,959
Losses on foreign currency translation 2,557,597 491,782
Losses on foreign currency transactions 90,485 49,677
Others 20,086 2,513
~~W~~ 7,535,228 5,347,018
(2) Interest expense included in finance expenses for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
--- --- --- --- --- --- ---
Trade and other payables ~~W~~ 191,918 200,440
Short-term borrowings 395,773 376,066
Long-term borrowings 465,352 407,915
Debt securities 3,857,917 3,634,680
Other financial liabilities 668,115 614,332
5,579,075 5,233,433
Less: Capitalized borrowing costs (913,980 ) (781,774 )
~~W~~ 4,665,095 4,451,659

Capitalization rates for each of the two years in the period ended December 31, 2024 are 2.39%~4.94%and 2.34%~4.28%, respectively

192

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

41. Income Taxes
(1) Income tax expenses (benefits) for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Current income tax expense
Payment of income tax ~~W~~ 1,301,275 621,957
Adjustment in respect of prior years due to change in estimate (44,892 ) (32,100 )
Current income tax directly recognized in equity (128,337 ) 93,705
1,128,046 683,562
Deferred tax expense (benefit)
Generation and realization of temporary differences (1,561,484 ) (1,845,236 )
Changes of unrecognized tax losses, tax credit and temporary differences for prior<br>periods (7,740 ) (15,244 )
Changes in deferred tax on tax losses carryforwards 2,012,537 (1,650,017 )
Tax credit carryforwards 72,371 (16,734 )
Amount due to change in tax rate or regulations (9,169 ) 5,836
506,515 (3,521,395 )
Income tax expense (benefit) ~~W~~ 1,634,561 (2,837,833 )
(2) Reconciliations between actual income tax expense (benefit) and amount computed by applying the statutorytax rate to income (loss) before income taxes for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Income (loss) before income tax ~~W~~ 5,256,529 (7,553,977 )
Income tax expense (benefit) at applicable tax rate (2024: 25.93%, 2023: 25.64%) 1,363,018 (1,936,840 )
Adjustments:
Effect of applying gradual tax rate (10,362 ) (10,362 )
Effect of non-taxable income (86,442 ) (26,993 )
Effect of non-deductible expenses 28,712 39,411
Effect of tax losses that are not recognized as deferred tax asset (797 )
Effects of tax credits and deduction (54,364 ) (53,724 )
Reversal of unrecognized deferred tax asset, net (7,740 ) (15,244 )
Effect of change in deferred tax due to change in tax rate (11,985 ) 211,736
Deduction of deferred tax assets 29,095
Deferred income tax related to investments in subsidiaries and associates 447,833 (1,063,007 )
Others, net 11,580 20,195
316,435 (868,893 )
Adjustment in respect of prior years due to change in estimate (44,892 ) (32,100 )
Income tax expense (benefit) ~~W~~ 1,634,561 (2,837,833 )
( *) ( *)
(*) The average effective tax rate for the year ended December 31, 2024 is 31.10% and the average effective<br>tax rate for the year ended December 31, 2023 is not calculated as the income tax benefit incurred for the period.
--- ---

193

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

41. Income Taxes, Continued
(3) Income tax recognized as other comprehensive income (loss) for each of the two years in the period endedDecember 31, 2024 is as follows:
--- ---
In millions of won For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
--- --- --- --- --- --- ---
Income tax recognized as other comprehensive income (loss)
Loss on valuation of financial assets at fair value through other comprehensive income ~~W~~ (61,807 ) (10,624 )
Net change in the unrealized fair value of derivatives using cash flow hedge accounting, net of<br>tax (8,435 ) 4,863
Remeasurement of defined benefit obligations 139,566 133,134
Investments in associates (134,639 ) (40,213 )
Others (63,022 ) 6,545
~~W~~ (128,337 ) 93,705
(4) Changes in deferred tax assets (liabilities) recognized in the statements of financial position for each ofthe two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Amountsrecognizedin profit orloss Amountrecognized inothercomprehensiveincome (loss) Amounts<br>recognized<br>directly<br>in equity Ending<br>balance
Deferred tax on temporary differences
Long-term employee benefits ~~W~~ 339,284 384,503 139,566 863,353
Cash flow hedge (20,855 ) (126,825 ) (8,435 ) (156,115 )
Investments in subsidiaries, associates and joint ventures (7,117,637 ) (597,996 ) (134,639 ) (7,850,272 )
Property, plant and equipment (7,007,277 ) (462,457 ) (7,469,734 )
Finance lease (225,696 ) 683 225,013
Intangible assets (23,405 ) (3,168 ) (26,573 )
Financial assets at fair value through profit or loss (1,742 ) 1,012 (730 )
Financial assets at fair value through other comprehensive income 27,358 18,110 (61,807 ) (16,339 )
Deferred revenue 156,400 1,705,918 1,862,318
Provisions 7,041,660 561,988 7,603,648
Doubtful receivables 2,400 (136 ) 2,264
Other finance liabilities 17,992 (561 ) 17,431
Gains or losses on foreign exchange translation 128,010 87,265 215,275
Allowance for doubtful accounts 55,743 12,078 67,821
Accrued income 33,935 (48,467 ) (14,532 )
Special deduction for property, plant and equipment (211,860 ) 542 (211,318 )
Others 1,216,228 166,914 (63,022 ) 1,320,120
(5,589,462 ) 1,699,403 (128,337 ) (4,018,396 )
Deferred tax on unused tax losses and tax credit
Unused tax losses 13,338,743 (2,038,156 ) 11,300,587
Excess of donation limit 46,322 (4,112 ) 42,210
Tax credit 203,064 (35,313 ) 167,751
13,588,129 (2,077,581 ) 11,510,548
~~W~~ 7,998,667 (378,178 ) (128,337 ) 7,492,152

194

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

41. Income Taxes, Continued
(4) Changes in deferred tax assets (liabilities) recognized in the statements of financial position for each ofthe two years in the period ended December 31, 2024 are as follows, continued:
--- ---
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginningbalance Amountsrecognizedin profit orloss Amountrecognized inothercomprehensiveincome (loss) Amounts<br>recognized<br>directly<br>in equity Ending<br>balance
Deferred tax on temporary differences
Long-term employee benefits ~~W~~ 199,553 6,597 133,134 339,284
Cash flow hedge (55,340 ) 29,622 4,863 (20,855 )
Investments in subsidiaries, associates and joint ventures (8,377,687 ) 1,300,263 (40,213 ) (7,117,637 )
Property, plant and equipment (7,541,638 ) 534,361 (7,007,277 )
Finance lease (405,639 ) 179,943 (225,696 )
Intangible assets (24,931 ) 1,526 (23,405 )
Financial assets at fair value through profit or loss 3,457 (5,199 ) (1,742 )
Financial assets at fair value through other comprehensive income 21,143 16,839 (10,624 ) 27,358
Deferred revenue 169,980 (13,580 ) 156,400
Provisions 7,089,344 (47,684 ) 7,041,660
Doubtful receivables 2,474 (74 ) 2,400
Other finance liabilities 21,418 (3,426 ) 17,992
Gains or losses on foreign exchange translation 134,316 (6,306 ) 128,010
Allowance for doubtful accounts 58,235 (2,492 ) 55,743
Accrued income 16,614 17,321 33,935
Special deduction for property, plant and equipment (215,159 ) 3,299 (211,860 )
Others 1,487,572 (277,889 ) 6,545 1,216,228
(7,416,288 ) 1,733,121 93,705 (5,589,462 )
Deferred tax on unused tax losses and tax credit
Unused tax losses 11,662,105 1,676,638 13,338,743
Excess of donation limit 81,046 (34,724 ) 46,322
Tax credit 150,409 52,655 203,064
11,893,560 1,694,569 13,588,129
~~W~~ 4,477,272 3,427,690 93,705 7,998,667
(5) Deferred tax assets (liabilities) recognized in the statements of financial position as of December 31,2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- ---
Deferred tax assets ~~W~~ 13,436,624 13,161,802
Deferred tax liabilities (5,944,472 ) (5,163,135 )
~~W~~ 7,492,152 7,998,667
(6) Details of deductible temporary differences, tax losses and unused tax credits for which no deferred taxassets were recognized as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- ---
Deductible temporary differences and others ~~W~~ 1,416,650 1,811,062

195

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

41. Income Taxes, Continued
(7) Pillar Two Model Rules
--- ---

The Group has assessed the potential exposure arising from the Pillar Two legislation based on the financial information for 2024. Based on the assessment carried out so far, the Group has identified its potential exposure to Pillar Two income taxes on profits earned from its constituent entities operating in Nepal, Pakistan, Vietnam, and other jurisdictions where the expected Pillar Two effective tax rate is likely to be lower than 15%. As a result, the Group expects that KEPCO and its constituent entities operating therein will pay additional Pillar Two income taxes on the profit from such constituent entities.

The current income tax expense recognized for the year ended December 31, 2024 in relation with the additional Pillar Two income taxes amounts to approximately ~~W~~3,727 million. The Group has applied the mandatory exception to recognition and disclosure of deferred taxes arising from Pillar Two income taxes.

42. Assets Held-for-Sale

Assets held-for-sale as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Land (*1,2) ~~W~~ 31,766 31,766
Buildings (*1,2) 13,881 13,881
Structures (*1) 1 1
~~W~~ 45,648 45,648
(*1) The board of directors of KEPCO Engineering & Construction Company, Inc., a subsidiary of the Group,<br>made a resolution to sell its old office building in Yongin-si, Gyeonggi-do, and reclassified the buildings, structures, and land as assets held-for-sale expecting its carrying amount would be recovered through a sale transaction. In accordance with<br>the resolution of the Board of Directors on April 1, 2022, a sales contract for the assets scheduled for sale was entered into on April 13, 2022, and the related down payment and interim payment of ~~W~~81,392 million<br>were recorded as long-term advance received.
--- ---
(*2) The board of directors of Korea Electric Power Corporation, the controlling company, made a resolution to sell<br>the Uijeongbu substation, and reclassified the buildings and land as assets held-for-sale expecting its carrying amount would be recovered through a sale transaction during the year ended December 31, 2022. Although it is expected to take<br>more than a year to complete the sale transaction, the Group decided that the definitive purchase contract is still valid as a result of discussions with the counterparty.
--- ---

196

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

43. Expenses Classified by Nature

Expenses classified by nature for each of the two years in the period ended December 31, 2024 are as follows:

In millions of won For the year ended December 31, 2024
Selling andadministrative expenses Cost of sales Total
Raw materials used ~~W~~ 21,070,280 21,070,280
Power purchase 34,659,893 34,659,893
Salaries 1,180,379 4,887,006 6,067,385
Retirement benefit expense 104,036 428,163 532,199
Welfare and benefit expense 151,840 546,124 697,964
Insurance expense 30,460 130,904 161,364
Depreciation 231,114 13,598,350 13,829,464
Amortization of intangible assets 88,920 74,647 163,567
Bad debt expense 35,232 35,232
Commission 429,977 426,976 856,953
Advertising expense 32,205 11,359 43,564
Training expense 8,911 17,156 26,067
Vehicle maintenance expense 9,218 9,416 18,634
Publishing expense 2,857 2,750 5,607
Business promotion expense 2,687 2,627 5,314
Rent expense 48,474 182,358 230,832
Telecommunication expense 9,406 9,920 19,326
Transportation expense 1,108 52,532 53,640
Taxes and dues 98,714 624,475 723,189
Expendable supplies expense 6,976 50,451 57,427
Water, light and heating expense 15,009 42,180 57,189
Repairs and maintenance expense 197,942 2,750,014 2,947,956
Ordinary development expense 217,975 555,956 773,931
Travel expense 18,726 74,843 93,569
Clothing expense 11,216 9,299 20,515
Survey and analysis expense 871 4,382 5,253
Membership fee 1,709 15,995 17,704
Others 134,064 1,726,104 1,860,168
~~W~~ 3,070,026 81,964,160 85,034,186

197

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

43. Expenses Classified by Nature, Continued

Expenses classified by nature for each of the two years in the period endedDecember 31, 2024 are as follows, continued:

In millions of won For the year ended December 31, 2023
Selling andadministrative expenses Cost of sales Total
Raw materials used ~~W~~ 27,135,770 27,135,770
Power purchase 38,304,309 38,304,309
Salaries 1,098,460 4,416,706 5,515,166
Retirement benefit expense 89,533 370,769 460,302
Welfare and benefit expense 152,836 542,367 695,203
Insurance expense 27,726 119,964 147,690
Depreciation 241,533 12,623,380 12,864,913
Amortization of intangible assets 88,648 74,526 163,174
Bad debt expense 62,808 62,808
Commission 460,644 341,124 801,768
Advertising expense 30,305 8,856 39,161
Training expense 7,900 16,064 23,964
Vehicle maintenance expense 9,044 9,128 18,172
Publishing expense 3,281 2,879 6,160
Business promotion expense 2,559 2,523 5,082
Rent expense 44,807 161,749 206,556
Telecommunication expense 7,813 9,706 17,519
Transportation expense 1,099 102,502 103,601
Taxes and dues 112,449 574,617 687,066
Expendable supplies expense 7,252 47,252 54,504
Water, light and heating expense 16,207 41,200 57,407
Repairs and maintenance expense 154,062 2,620,200 2,774,262
Ordinary development expense 217,319 500,242 717,561
Travel expense 16,265 77,232 93,497
Clothing expense 10,450 9,490 19,940
Survey and analysis expense 1,068 4,156 5,224
Membership fee 1,503 15,164 16,667
Others 196,011 1,567,652 1,763,663
~~W~~ 3,061,582 89,699,527 92,761,109

198

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

44. Earnings (Losses) Per Share
(1) Basic earnings (losses) per share for each of the two years in the period ended December 31, 2024 areas follows:
--- ---
In won
--- --- --- --- --- ---
Type For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Basic earnings (losses) per share ~~W~~ 5,439 (7,512 )
(2) Profits (losses) for the periods and the weighted average number of common shares used in the calculation ofbasic earnings (losses) per share for each of the two years in the period ended December 31, 2024 are as follows:
--- ---
In millions of won except number of shares
--- --- --- --- --- ---
Type For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Profit (loss) attributable to controlling interest ~~W~~ 3,491,698 (4,822,549 )
Profit (loss) used in the calculation of total basic earnings (losses) per share 3,491,698 (4,822,549 )
Weighted average number of common shares 641,964,077 641,964,077
(3) The weighted average number of common shares used in the calculation of basic earnings (losses) per sharefor each of the two years in the period ended December 31, 2024 is as follows:
--- ---
In number of shares
--- --- --- --- ---
Type For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
The number of common shares issued at beginning of the year 641,964,077 641,964,077
Weighted average number of common shares 641,964,077 641,964,077
(4) There are no potential dilutive instruments, thus diluted earnings (losses) per share are same as basicearnings (losses) per share for each of the two years in the period ended December 31, 2024.
--- ---

199

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management
(1) Capital risk management
--- ---

The Group manages its capital to ensure that entities in the Group will be able to continue while maximizing the return to shareholder through the optimization of the debt and equity balance. The capital structure of the Group consists of net debt (offset by cash and cash equivalents) and equity. The Group’s overall capital risk management strategy remains consistent with the prior year.

Details of the Group’s capital management accounts as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Total borrowings and debt securities ~~W~~ 132,533,400 133,631,830
Cash and cash equivalents 2,382,979 4,342,887
Net borrowings and debt securities 130,150,421 129,288,943
Total equity 41,362,833 37,264,750
Debt to equity ratio 314.66 % 346.95 %
(2) Financial risk management
--- ---

The Group is exposed to various risks related to its financial instruments, such as, market risk (currency risk, interest rate risk, price risk), and credit risk. The Group monitors and manages the financial risks relating to the operations of the Group through internal risk reports which analyze exposures by degree and magnitude of risks. The Group uses derivative financial instruments to hedge certain risk exposures. The Group’s overall financial risk management strategy remains consistent with the prior year.

(i) Credit risk

Credit risk is the risk of finance loss to the Group if a customer or counterparty to a financial instrument fails to meet its contractual obligations, and arises primarily from the sales activities, securities and derivatives. In addition, credit risk exposure may exist within financial guarantees and unused line of credits. As these financial institutions the Group makes transactions with are reputable financial institutions, the credit risk from them is considered limited. The Group decides credit transaction limits based on evaluation of client’s credit, through information obtained from the credit bureau and disclosed financial position at committing contracts.

Credit risk management

Electricity sales, the main operations of the Group are the necessity for daily life and industrial activities of Korean nationals and have importance as one of the national key industries. The Group dominates the domestic market supplying electricity to customers. The Group is not exposed to significant credit risk as customers of the Group are diverse and are from various industries and areas. The Group uses publicly available information and its own internal data related to trade receivables, to rate its major customers and to measure the credit risk that a counter party will default on a contractual obligation. For the incurred but not recognized loss, it is measured considering overdue period.

Impairment and allowance account

In accordance with the Group policies, individual material financial assets are assessed on a regular basis, trade receivables that are assessed not to be impaired individually are, in addition, assessed for impairment on a collective basis. Value of the acquired collateral (including the confirmation of feasibility) and estimated collectable amounts are included in this assessment.

Allowance for bad debts assessed on a collective basis are recognized for (i) the group of assets which individually are not material and (ii) incurred but not recognized losses that are assessed using statistical methods, judgment and past experience.

200

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---

Book values of the financial assets represent the maximum exposed amounts of the credit risk. Details of the Group’s level of maximum exposure to credit risk as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Cash and cash equivalents ~~W~~ 2,382,979 4,342,887
Financial assets at fair value through profit or loss (*1) 2,013,948 2,590,228
Derivative assets (trading) 1,846,527 730,948
Financial assets at fair value through other comprehensive income (debt securities) 5,045 4,627
Financial assets at amortized cost 30,233 38,843
Loans 908,148 988,331
Long-term/short-term financial instruments 1,960,140 1,412,315
Derivative assets (applying hedge accounting) 844,637 269,446
Trade and other receivables 15,373,625 14,179,322
Financial guarantee contracts (*2) 5,151,554 4,399,189
(*1) Equity investments held by the Group are excluded.
--- ---
(*2) Maximum exposure associated with the financial guarantee contracts is the maximum amounts of the obligation.<br>
--- ---

For the year ended December 31, 2024, there are no financial assets and non-financial assets that were acquired through the exercise of the right of collateralized assets and reinforcement of credit arrangement.

(ii) Market risk

Market risk is the risk that the Group’s fair values of the financial instruments or future cash flows are affected by the changes in the market. Market risk consists of interest rate risk, currency risk and other price risk.

201

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---
(iii) Sensitivity analysis
--- ---

Significant assets and liabilities with uncertainties in underlying assumptions.

Defined benefit obligation

A sensitivity analysis of defined benefit obligation assuming a 1%p increase and decrease movements in the actuarial valuation assumptions as of December 31, 2024 and 2023 is as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Type Accounts 1%p Increase 1%p Decrease 1%p Increase 1%p Decrease
Future salary increases Increase (decrease) in defined benefit obligation ~~W~~ 473,627 (413,799 ) 392,392 (361,359 )
Discount rate Increase (decrease) in defined benefit obligation (429,517 ) 506,031 (371,103 ) 415,361

Changes in retirement benefit costs assuming a 1%p increase and decrease movements in discount rate on plan asset for each of the two years in the period ended December 31, 2024 are ~~W~~36,602 million and ~~W~~29,993 million, respectively.

Provisions

Changes in provisions due to movements in underlying assumptions as of December 31, 2024 and 2023 are as follows:

Type Accounts As of December 31, 2024 As of December 31, 2023
PCBs Inflation rate 2.80 % 2.40 %
Discount rate 2.90 % 2.12 %
Nuclear plants Inflation rate 2.02 % 1.91 %
Discount rate 2.78 % 2.76 %
Spent fuel Inflation rate 1.91 % 1.91 %
Discount rate 2.49 % 2.49 %
Radioactive waste Inflation rate 3.32 % 3.89 %
Discount rate 4.17 % 3.65 %

A sensitivity analysis of provisions assuming a 0.1%p increase and decrease movements in the underlying assumptions as of December 31, 2024 and 2023 is as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Type Accounts 0.1%pIncrease 0.1%p<br>Decrease 0.1%p<br>Increase 0.1%p<br>Decrease
Discount rate PCBs ~~W~~ (58 ) 58 (123 ) 123
Nuclear plants (464,727 ) 481,899 (418,570 ) 432,847
Spent fuel (129,983 ) 130,679 (130,065 ) 130,761
Radioactive waste (11,363 ) 11,478 (13,538 ) 13,683
Inflation rate PCBs 58 (58 ) 123 (123 )
Nuclear plants 507,814 (490,386 ) 458,047 (443,531 )
Spent fuel 133,847 (128,527 ) 133,931 (128,607 )
Radioactive waste 11,167 (11,075 ) 13,291 (13,174 )

202

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---

Management judgment effected by uncertainties in underlying assumptions.

Foreign currency risk

The Group undertakes transactions denominated in foreign currencies; consequently, exposures to exchange rate fluctuations arise. The carrying amounts of the Group’s foreign currency denominated monetary assets and monetary liabilities as of December 31, 2024 and 2023 are as follows:

In thousands of foreigncurrencies Liabilities
Type As of December 31, 2023 As of December 31, 2024 As of December 31, 2023
AED 33,465 24,441 8,795 18,143
AUD 26 4,310 64 299,795
BDT 2,252 2,260
BWP 768 777
EGP 203,044 1,665 1,941
CAD 2 61
CHF 100,686 499,930
DOP 7,772
20,433 12,259 47,829 81,744
139 75 4
HKD 5,093,862 5,079,189
IDR 37,830,902 25,567,281 4,027,099 2,118,580
1,037,437 1,663,705 225,042 387,947
JOD 902 569 49,128 68,448
23,798 921,120 7,483,199 8,692,604
KZT 1,510 1,510
MGA 5,452,745 3,545,076 248,175 495,288
MMK 188,021 199,518
MYR 2,805 2,805
PHP 19,401 98,154 6,750
PKR 68,734,242 75,206,354 10,418 55,531
SAR 1,087 937
SEK 449,302 452,309
SGD 291 279 110 2,191
1,651,765 1,701,494 15,364,685 14,458,985
UYU 99,189 120,768 1,141 2,028
VND 733,338 848,242 587,003
ZAR 79,897 87,780

All values are in Euros.

A sensitivity analysis on the Group’s income for the period assuming a 10% increase and decrease in currency exchange rates as of December 31, 2024 and 2023 is as follows:

In millions of won As of December 31, 2024 As of December 31, 2023
Type 10% Increase 10% Decrease 10% Increase 10% Decrease
Increase (decrease) of profit before income tax ~~W~~ (2,114,808 ) 2,114,808 (1,828,308 ) 1,828,308
Increase (decrease) of shareholder’s equity (*) (2,114,808 ) 2,114,808 (1,828,308 ) 1,828,308
(*) The effect on the shareholder’s equity excluding the impact of income taxes.
--- ---

The sensitivity analysis above is conducted for monetary assets and liabilities denominated in foreign currencies other than functional currency, without consideration of hedge effect of related derivatives, as of December 31, 2024 and 2023.

203

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---

To manage its foreign currency risk related to foreign currency denominated receivables and payables, the Group has a policy to enter into currency swap agreements. In addition, to manage its foreign currency risk related to foreign currency denominated expected sales transactions and purchase transactions, the Group enters into currency forward agreements.

There is an economic relationship between the hedged item and the hedging instrument as the terms of cross-currency swap agreement is consistent with the terms of expected transaction (repayment of foreign debt securities and others). The hedging ratio is 1:1 as the risk of cross-currency swap agreement matches the hedged item. As of December 31, 2024, the hedging instrument (cross-currency swap) hedges the risk of the hedged item (repayment of foreign debt securities and others).

Interest rate risk

The Group is exposed to interest rate risk due to its borrowing with floating interest rates. A 1%p increase or decrease is used when reporting interest rate risk internally to key management personnel and represents management’s assessment of the reasonably possible change in interest rates.

The Group’s borrowings and debt securities with floating interest rates as of December 31, 2024 and 2023 are as follows:

In millions of won
Type As of December 31, 2024 As of December 31, 2023
Short-term borrowings ~~W~~ 4,069,444 4,435,420
Long-term borrowings 10,112,707 7,766,588
Debt securities 41,578 305,602
~~W~~ 14,223,729 12,507,610

A sensitivity analysis on the Group’s borrowings and debt securities assuming a 1%p increase and decrease in interest rates for each of the two years in the period ended December 31, 2024 is as follows:

In millions of won For the year ended December 31, 2024 For the year ended December 31, 2023
Type 1%p Increase 1%p Decrease 1%p Increase 1%p Decrease
Increase (decrease) of profit before income tax ~~W~~ (142,237 ) 142,237 (125,076 ) 125,076
Increase (decrease) of shareholder’s equity (*) (142,237 ) 142,237 (125,076 ) 125,076
(*) The effect on the shareholder’s equity excluding the impact of income taxes.
--- ---

The Group manages its interest rate risk by having a balanced portfolio of fixed and variable rate loans and borrowings. To manage this, the Group enters into interest rate swaps, in which it agrees to exchange, at specified intervals, the difference between fixed and variable rate interest amounts calculated by reference to an agreed-upon notional principal amount. The above analysis measures the interest rate risk before reflecting the hedge effect by related derivatives.

204

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---
Electricity rates risk
--- ---

The Group is exposed to electricity rates risk due to changes in government regulations and policies on national power supply schemes and electricity billing rates, in consideration of the national economy.

A sensitivity analysis on the Group’s income for the period assuming a 1% increase and decrease in price of electricity for each of the two years in the period ended December 31, 2024 is as follows:

In millions of won For the year ended December 31, 2024 For the year ended December 31, 2023
Type 1% Increase 1% Decrease 1% Increase 1% Decrease
Increase (decrease) of profit before income tax ~~W~~ 888,898 (888,898 ) 829,548 (829,548 )
Increase (decrease) of shareholder’s equity (*) 888,898 (888,898 ) 829,548 (829,548 )
(*) The effect on the shareholder’s equity excluding the impact of income taxes.
--- ---
(iv) Liquidity risk
--- ---

The Group has established an appropriate liquidity risk management framework for the management of the Group’s short, medium and long-term funding and liquidity management requirements. The Group manages liquidity risk by continuously monitoring forecasted and actual cash flows, and by matching the maturity profiles of financial assets and liabilities.

In addition, the Group has established credit lines on its trade financing and bank overdrafts, and through payment guarantees it has received, it maintains an adequate credit (borrowing) line. In addition, the Group has the ability to utilize excess cash or long-term borrowings for major construction investments.

The expected maturities of non-derivative financial liabilities as of December 31, 2024 and 2023 in detail are as follows:

In millions of won As of December 31, 2024
Type Less than 1year 1~2 Years 2~5 Years More than<br>5 years Total
Borrowings ~~W~~ 18,887,527 430,883 1,300,087 2,032,303 22,650,800
Debt securities 28,967,125 29,601,867 39,451,207 28,885,833 126,906,032
Lease liabilities 632,878 553,030 1,264,310 1,670,416 4,120,634
Trade and other payables (*1) 8,807,823 354,778 631,653 526,846 10,321,100
Financial guarantee contracts (*2) 3,156,187 1,712,801 270,806 11,760 5,151,554
~~W~~ 60,451,540 32,653,359 42,918,063 33,127,158 169,150,120
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Type Less than 1year 1~2 Years 2~5 Years More than<br>5 years Total
Borrowings ~~W~~ 20,347,945 187,896 627,467 2,779,241 23,942,549
Debt securities 30,530,984 28,858,140 41,793,383 29,999,589 131,182,096
Lease liabilities 641,525 588,850 1,309,995 1,694,730 4,235,100
Trade and other payables (*1) 8,477,209 364,443 833,394 589,004 10,264,050
Financial guarantee contracts (*2) 121,415 2,546,689 1,645,488 85,597 4,399,189
~~W~~ 60,119,078 32,546,018 46,209,727 35,148,161 174,022,984
(*1) Excludes lease liabilities.
--- ---
(*2) This represents the total guarantee amounts associated with the financial guarantee contracts. Financial<br>guarantee liabilities which are recognized as of December 31, 2024 and 2023 are ~~W~~30,924 million and ~~W~~49,992 million, respectively.
--- ---

205

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---

As the Group manages liquidity based on net assets and net liabilities, information about non-derivative financial assets should be included in the disclosure for better understanding of liquidity risk management.

The expected maturities of non-derivative financial assets as of December 31, 2024 and 2023 in detail are as follows:

In millions of won As of December 31, 2024
Type Less than 1year 1~5 Years More than<br>5 years Other (*) Total
Cash and cash equivalents ~~W~~ 2,382,979 2,382,979
Financial assets at fair value through other comprehensive income 674,850 674,850
Financial assets at amortized cost 20,418 1,333 8,482 30,233
Loans and receivables 110,005 347,251 369,851 118,013 945,120
Long-term/short-term financial Instruments 1,147,929 583 811,628 1,960,140
Financial assets at fair value through profit or loss 1,467,954 346,982 780,130 494,710 3,089,776
Trade and other receivables 12,245,159 1,506,085 2,126,928 15,878,172
~~W~~ 17,374,444 2,202,234 3,285,391 2,099,201 24,961,270
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Type Less than 1year 1~5 Years More than<br>5 years Other (*) Total
Cash and cash equivalents ~~W~~ 4,342,887 4,342,887
Financial assets at fair value through other comprehensive income 502,443 502,443
Financial assets at amortized cost 28,905 9,938 38,843
Loans and receivables 139,168 465,666 411,100 8,872 1,024,806
Long-term/short-term financial Instruments 578,578 22 23 833,692 1,412,315
Financial assets at fair value through profit or loss 2,054,021 1,381 6,523 649,360 2,711,285
Trade and other receivables 11,990,515 911,822 1,292,539 1,280 14,196,156
~~W~~ 19,134,074 1,388,829 1,710,185 1,995,647 24,228,735
(*) The maturities cannot be presently determined.
--- ---

206

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(2) Financial risk management, continued
--- ---

Derivative liabilities classified by maturity periods from reporting date to maturity dates as per the contracts as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024
Type Less than 1year 1~2Years 2~5 Years More than<br>5 years Total
Net settlement
- Trading ~~W~~
Gross settlement
- Trading and others (46,087 ) (61,259 ) (73,017 ) (31,760 ) (212,123 )
- Hedging (4,895 ) (4,895 )
~~W~~ (46,087 ) (61,259 ) (73,017 ) (36,655 ) (217,018 )
In millions of won As of December 31, 2023
Type Less than 1year 1~2Years 2~5 Years More than<br>5 years Total
Net settlement
- Trading ~~W~~
Gross settlement
- Trading and others (22,571 ) (11,566 ) (201,590 ) (130,119 ) (365,846 )
- Hedging (4,680 ) (13,243 ) (5,641 ) (23,564 )
~~W~~ (22,571 ) (16,246 ) (214,833 ) (135,760 ) (389,410 )

207

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(3) Fair value risk
--- ---

The fair value of the Group’s actively-traded financial instruments (i.e., FVTPL, FVOCI, etc.) is based on the traded market-price as of the reporting period end. The fair value of the Group’s financial assets is the amount which the asset could be exchanged for or the amount a liability could be settled for.

The fair values of financial instruments where no active market exists or where quoted prices are not otherwise available are determined by using valuation techniques. Valuation techniques include using recent arm’s length market transactions between knowledgeable, willing parties, if available, reference to the current fair value of another instrument that is substantially the same, discounted cash flow analysis and option pricing models. If there is a valuation technique commonly used by market participants to price the instrument and that technique has been demonstrated to provide reliable estimates of prices obtained in actual market transactions, the Group uses that technique.

For trade receivables and payables, the Group considers the carrying value net of impairment as fair value. While for disclosure purposes, the fair value of financial liabilities is estimated by discounting the future contractual cash flows based on current market interest rates applied to similar financial instruments.

(i) Fair values and book values of financial assets and liabilities as of December 31, 2024 and 2023 are as<br>follows:
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Type Book value Fair value Book value Fair value
Assets recognized at fair value
Financial assets at fair value through<br><br><br>other comprehensive income ~~W~~ 674,850 674,850 502,443 502,443
Derivative assets (trading) 1,846,527 1,846,527 730,948 730,948
Derivative assets (applying hedge accounting) 844,637 844,637 269,446 269,446
Financial assets at fair value through<br><br><br>profit or loss 2,176,172 2,176,172 2,711,285 2,711,285
~~W~~ 5,542,186 5,542,186 4,214,122 4,214,122
Assets carried at amortized cost
Financial assets at amortized cost ~~W~~ 30,233 30,233 38,843 38,843
Loans and receivables 908,148 908,148 988,331 988,331
Trade and other receivables 15,373,625 15,373,625 14,179,322 14,179,322
Long-term financial instruments 812,211 812,211 833,737 833,737
Short-term financial instruments 1,147,929 1,147,929 578,578 578,578
Cash and cash equivalents 2,382,979 2,382,979 4,342,887 4,342,887
~~W~~ 20,655,125 20,655,125 20,961,698 20,961,698
Liabilities recognized at fair value
Derivative liabilities (trading) ~~W~~ 279,932 279,932 428,670 428,670
Derivative liabilities (applying hedge accounting) 4,893 4,893 23,564 23,564
~~W~~ 284,825 284,825 452,234 452,234
Liabilities carried at amortized cost
Secured borrowings ~~W~~ 1,443,125 1,443,125 773,646 773,646
Unsecured bond 111,874,019 110,798,858 113,792,178 111,218,771
Lease liabilities 3,699,456 3,699,456 3,807,880 3,807,880
Unsecured borrowings 19,040,213 18,994,676 19,062,162 19,061,348
Trade and other payables (*) 10,321,100 10,321,100 10,264,050 10,264,050
Overdraft 176,043 176,043 3,844 3,844
~~W~~ 146,553,956 145,433,258 147,703,760 145,129,539
(*) Excludes lease liabilities.
--- ---

208

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(3) Fair value risk, continued
--- ---
(ii) Interest rates used for determining fair value
--- ---

The interest rates used to discount estimated cash flows, when applicable, are based on the government yield curve at the reporting date plus an adequate credit spread.

The discount rates used for calculating fair value as of December 31, 2024 and 2023 are as follows:

Type As of December 31, 2024 As of December 31, 2023
Derivatives 0.03% ~ 4.88% 0.93% ~ 4.76%
Borrowings and debt securities 0.96% ~ 5.84% 0.96% ~ 5.84%
Leases 0.00% ~ 17.15% 0.00% ~<br>17.03%
(iii) Fair value hierarchy
--- ---

The following table provides an analysis of financial instruments that are measured subsequent to initial recognition at fair value, classified as Level 1, 2 or 3, based on the degree to which the fair value is observable.

Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities;
Level 2: Inputs other than quoted prices that are observable for the asset or liability either directly or indirectly; and
Level 3: Inputs that are not based on observable market data.

Fair values of financial instruments by hierarchy level as of December 31, 2024 and 2023 are as follows:

In millions of won As of December 31, 2024
Type Level 1 Level 2 Level 3 Total
Financial assets at fair value
Financial assets at fair value through other comprehensive income ~~W~~ 360,096 314,754 674,850
Derivative assets 2,691,164 2,691,164
Financial assets at fair value through profit or loss 2,169,300 6,872 2,176,172
~~W~~ 360,096 4,860,464 321,626 5,542,186
Financial liabilities at fair value
Derivative liabilities ~~W~~ 284,825 284,825
In millions of won As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Type Level 1 Level 2 Level 3 Total
Financial assets at fair value
Financial assets at fair value through other comprehensive income ~~W~~ 285,054 217,389 502,443
Derivative assets 1,000,394 1,000,394
Financial assets at fair value through profit or loss 2,704,550 6,735 2,711,285
~~W~~ 285,054 3,704,944 224,124 4,214,122
Financial liabilities at fair value
Derivative liabilities ~~W~~ 452,234 452,234

The fair value of financial assets traded in the market (including those measured at FVTPL and FVOCI) is measured at the closing bid price quoted at the end of the reporting period. Meanwhile, the fair value of unmarketable financial assets (including those measured at FVTPL and FVOCI) is calculated using the fair value measurement performed by external pricing service agents. In addition, the Group considered the major economic indicators and economic environment of the derivatives to be evaluated, and measured the fair value of the derivatives using a discounted cash flow model that reflects the Group’s credit risk.

209

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

45. Risk Management, Continued
(3) Fair value risk, continued
--- ---

Changes in non-derivative financial assets and liabilities which are classified as level 3 for each of the two years in the period ended December 31, 2024 are as follows:

In millions of won For the year ended December 31, 2024
Beginning<br>balance Acquisitions Reclassified<br>category Valuation Disposal Foreign<br>currency<br>translation<br>and others Ending<br>balance
Financial assets at fair value
Financial assets at fair value through profit or loss Cooperative ~~W~~ 6,735 22 115 6,872
Financial assets at fair value through other comprehensive income Unlisted securities 212,762 4,000 88,256 4,691 309,709
Debt securities 4,627 418 5,045
In millions of won For the year ended December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning<br>balance Acquisitions Reclassified<br>category Valuation Disposal Foreign<br>currency<br>translation<br>and others Ending<br>balance
Financial assets at fair value
Financial assets at fair value through profit or loss Cooperative ~~W~~ 6,329 270 136 6,735
Financial assets at fair value through other comprehensive income Unlisted securities 202,243 9,550 5,445 (5,332 ) 856 212,762
Debt securities 529 4,080 18 4,627

210

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

46. Service Concession Arrangements
(1) Hydroelectric Power Generation at Semangka, Indonesia (BOT)
--- ---
(i) Significant terms and concession period of the arrangement
--- ---

Regarding Semangka hydroelectric power-generation business (BOT) in Indonesia, the Group has entered into a contract with PT. Perusahaan Listrik Negara (the “PT PLN”) whereby the Group shall provide electricity generated for about 30 years (2018 – 2048) after subsequent to the completion of plant construction and shall receive charge tariff rates designed to recover capital cost, fixed O&M cost, water usage cost, variable O&M cost and special facilities cost during the concession period.

(ii) Rights and classification of the arrangement

The Group has the rights to use and own the power plant during the concession period from 2018 to 2048. At the end of the concession period, PT PLN has an option to take over the ownership of the power plant from the Group.

(iii) Classification method

This project allows PT PLN to acquire ownership of the plant after the end of the 30 years contract period.

(iv) The Group’s expected future collections of service concession arrangements as of December 31, 2024<br>are as follows:
In millions of won
--- --- ---
Type Amounts
Less than 1 year ~~W~~ 36,803
1 ~ 2 years 36,848
2 ~ 3 years 36,894
Over 3 years 562,373
~~W~~ 672,918

211

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

46. Service Concession Arrangements, Continued
(2) Pakistan Gulpur Hydropower Project
--- ---
(i) Significant terms and concession period of the arrangement
--- ---

The Group has entered into a contract with CPPAg (Central Power Purchasing Agency Guarantee Limited) whereby the Group shall provide electricity generated for approximately 30 years (2020 – 2050) subsequent to the completion of plant construction and shall receive charge tariff rates designed to recover capital cost, variable O&M cost, fixed O&M cost, water usage cost, insurance cost and others during the concession period.

(ii) Rights and classification of the arrangement

The Group has the rights to use and own the power plant during the concession period from 2020 to 2050. The Government of Pakistan has an option to take over the ownership of the power plant from the Group after the concession period has elapsed.

(iii) Classification method

This project allows the Government of Pakistan to acquire ownership of the plant after the end of the contract period.

(iv) The Group’s expected future collections of service concession arrangements as of December 31, 2024<br>are as follows:
In millions of won
--- --- ---
Type Amounts
Less than 1 year ~~W~~ 86,048
1 ~ 2 years 86,048
2 ~ 3 years 86,048
Over 3 years 952,225
~~W~~ 1,210,369

212

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

46. Service Concession Arrangements, Continued
(3) Guam Ukudu Combined thermal power plant Project
--- ---
(i) Significant terms and concession period of the arrangement
--- ---

The Group has entered into a contract with Guam Power Authority whereby the Group shall provide electricity generated for approximately 25 years (from 2025 to 2050) subsequent to the completion of plant construction and shall receive charge tariff rates designed to recover variable O&M cost, fixed O&M cost and others during the concession period.

(ii) Rights and classification of the arrangement

The Group has the rights to use and own the power plant during the concession period from 2020 to 2050. The Guam Power Authority has an option to take over the ownership of the power plant from the Group after the concession period has elapsed.

(iii) Classification method

This project allows the Guam Power Authority to acquire ownership of the plant after the end of the contract period.

(iv) The Group’s expected future collections of service concession arrangements as of December 31, 2024<br>are as follows:
In millions of won
--- --- ---
Type Amounts
Less than 1 year ~~W~~ 29,249
1 ~ 2 years 117,545
2 ~ 3 years 118,597
Over 3 years 2,944,947
~~W~~ 3,210,338

213

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties
(1) The Group’s related parties as of December 31, 2024 are as follows:
--- ---
Type Related party
--- ---
Parent Republic of Korea government
Subsidiaries<br> <br>(167 subsidiaries) Korea Hydro & Nuclear Power Co., Ltd., Korea South-East Power Co., Ltd., Korea Midland Power Co., Ltd., Korea Western Power Co., Ltd., Korea Southern Power Co., Ltd., Korea East-West Power Co., Ltd., KEPCO Engineering &<br>Construction Company, Inc., KEPCO Plant Service & Engineering Co., Ltd., KEPCO Nuclear Fuel Co., Ltd., KEPCO KDN Co., Ltd., Gyeonggi Green Energy Co., Ltd., Korea Offshore Wind Power Co., Ltd., KOSEP Material Co., Ltd., KEPCO International<br>HongKong Ltd., KEPCO International Philippines Inc., KEPCO Philippines Corporation, KEPCO Ilijan Corporation, KEPCO Gansu International Ltd., KEPCO Philippines Holdings Inc., KEPCO Neimenggu International Ltd., KEPCO Australia Pty., Ltd., KEPCO<br>Shanxi International Ltd., KOMIPO Global Pte Ltd., KOSEP Australia Pty., Ltd., KOMIPO Australia Pty., Ltd., KOWEPO Australia Pty., Ltd., KOSPO Australia Pty., Ltd., KEPCO Netherlands B.V., KEPCO Middle East Holding Company, Qatrana Electric Power<br>Company, KOWEPO International Corporation, KOSPO Jordan LLC, Korea Waterbury Uranium Limited Partnership, PT. Cirebon Power Service, EWP America Inc., KHNP Canada Energy Ltd., KEPCO Bylong Australia Pty., Ltd., KNF Canada Energy Limited, KEPCO<br>Holdings de Mexico, KST Electric Power Company, S.A.P.I. de C.V., KEPCO Energy Service Company, KEPCO Netherlands S3 B.V., PT. KOMIPO Pembangkitan Jawa Bali, EWP Barbados 1 SRL, PT. Tanggamus Electric Power, KOMIPO America Inc., PT. EWP Indonesia,<br>KEPCO Netherlands J3 B.V., Global One Pioneer B.V., Global Energy Pioneer B.V., Mira Power Limited, KEPCO KPS Philippines Corp., KOSPO Chile SpA, Commerce and Industry Energy Co., Ltd., Gyeongju Wind Power Co., Ltd., California Power Holdings, LLC,<br>EWP Renewable Corporation, Hee Mang Sunlight Power Co., Ltd., Fujeij Wind Power Company, KOSPO Youngnam Power Co., Ltd., Chitose Solar Power Plant LLC., KEPCO Solar Co., Ltd., KEPCO ES Co., Ltd., KOSPO Power Services Ltda., KOEN Bylong Pty., Ltd.,<br>KOWEPO Bylong Pty., Ltd., KOSPO Bylong Pty., Ltd., EWP Bylong Pty., Ltd., KOWEPO Lao International, KOMIPO Bylong Pty., Ltd., Energy New Industry Specialized Investment Private Investment Trust., KEPCO Mangilao Holdings LLC, Mangilao Investment LLC,<br>KEPCO Mangilao Solar, LLC, Jeju Hanlim Offshore Wind Co., Ltd., PT. Siborpa Eco Power, e-New Industry LB Fund 1, Songhyun e-New Industry Fund, BSK E-New Industry Fund VII, PT. Korea Energy Indonesia, KOLAT SpA, KEPCO California, LLC, KEPCO Mojave<br>Holdings, LLC, Incheon Fuel Cell Co., Ltd., KOEN Service Co., Ltd., KOMIPO Service Co., Ltd., KOWEPO Service Co., Ltd., KOSPO Service Co., Ltd., EWP Service Co., Ltd., PT. KOMIPO Energy Indonesia, KNF Partners Co., Ltd., KOSPO USA Inc., KOSPO Niles<br>LLC (formerly, Nambu USA LLC), Tamra Offshore Wind Power Co., Ltd., KEPCO MCS Co., Ltd., KEPCO FMS Co., Ltd., Firstkeepers Co., Ltd., Secutec Co., Ltd., SE Green Energy Co., Ltd., Mangilao Intermediate Holdings LLC, KEPCO CSC Co., Ltd., KOAK Power<br>Limited, KOMIPO Europe B.V., Haenanum Energy Fund, Paju Ecoenergy Co., Ltd., Guam Ukudu Power LLC, K-SOLAR SHINAN Co., Ltd., KPS Partners Co., Ltd., KEPCO E&C Service Co., Ltd., Moha solar Co., Ltd., KHNP USA LLC, KOMIPO Vanphong Power Service<br>LLC, Ogiri Solar Power Co., Ltd., BSK E-New Industry Fund X, Energy Innovation Fund I, KHNP Chile SpA, Yeong Yang Apollon Photovoltaic Co., Ltd., Yeong Yang Corporation Co., Ltd., SolarVader Co., Ltd., Yeong Yang Innovation Co., Ltd., Yeong Yang<br>Horus Photovoltaic Co., Ltd., Yeong Yang Solar Management Co., Ltd., LSG Hydro Power Limited, KOEN Bio Co., Ltd., KOMIPO Energy Solution America, LLC, Elara Investment Holdings, LLC, Elara Equity Holdings, LLC, Elara Class B Holdings, LLC, Elara<br>Class B Member, LLC, Elara Development Holdings, LLC, KOMIPO Development, LLC, Elara Energy Holdings, LLC, Elara Energy Project, LLC, KOMIPO Iberian Solar Group, S.L.U., KOWEPO Europe B.V., CVS Equity Holdings, LLC, CVS Class B Holdings, LLC, CVS<br>Development Holdings, LLC, CVS Development, LLC, CVS Class B Member, LLC, CVS Energy Holdings, LLC, Concho Valley Energy, LLC, Concho Valley Solar, LLC, Jeongam Wind Power Co., Ltd., Yeongdeok Sunrise Wind Power Co., Ltd., UI Carbon-Neutrality Fund,<br>KA Power Limited, Western Power Changgi Solar Co., Ltd., Digital Innovation Growth Fund, EWP Australia Pty., Ltd., Columboola Solar Farm Hold Co Pty., Ltd., J Wind First, LLC, KEPCO Holding Company, KEPCO for Maintenance Company, KOSPO Trumbull LLC,<br>Changjuk Wind Power Co., Ltd., KEPCO KPS South Africa Pty., Ltd., Chile Solar JV SpA, KOWEPO Holding Limited, Columboola Solar Farm Nominees Pty., Ltd., Columboola Solar Farm Op Trust, Columboola Solar Farm Fin Co Pty., Ltd., Magna Energy New<br>Industrial Fund, EWP ESS Holdings, LLC, Fairhaven ESS LLC, KOSPO Rutile, LLC, Sprott Chile Solar I SpA

214

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(1) The Group’s related parties as of December 31, 2024 are as follows, continued:
--- ---
Type Related party
--- ---
Associates<br> <br>(98 entities) Dongducheon Dream Power Co., Ltd., Korea Gas Corporation, Daegu Photovoltaic Co., Ltd., Haeng Bok Do Si Photovoltaic Power Co., Ltd., Korea Electric Power Industrial Development Co., Ltd., Goseong Green Power Co., Ltd., Gangneung<br>Eco Power Co., Ltd., Shin Pyeongtaek Power Co., Ltd., Noeul Green Energy Co., Ltd., Gangwon Wind Power Co., Ltd., Gwangyang Green Energy Co., Ltd., Hyundai Green Power Co., Ltd., Korea Power Exchange, Taebaek Guinemi Wind Power Co., Ltd., Daeryun<br>Power Co., Ltd., KNH Solar Co., Ltd., S-Power Co., Ltd., SPC Power Corporation, Gemeng International Energy Co., Ltd., PT. Cirebon Electric Power, KNOC Nigerian East Oil Co., Ltd., KNOC Nigerian West Oil Co., Ltd., PT Wampu Electric Power, PT. Bayan<br>Resources TBK, Nepal Water & Energy Development Company Private Limited, Xe-Pian Xe-Namnoy Power Co., Ltd., PT. Mutiara Jawa, Jinbhuvish Power Generation Pvt. Ltd., Daejung Offshore Wind Power Co., Ltd., GS Donghae Electric Power Co., Ltd.,<br>Busan Green Energy Co., Ltd., Hansuwon KNP Co., Ltd., Korea Electric Power Corporation Fund, Energy Infra Asset Management Co., Ltd., Yaksu ESS Co., Ltd., PND Solar Co., Ltd., Hyundai Eco Energy Co., Ltd., YeongGwang Yaksu Wind Electric Co., Ltd.,<br>Green Energy Electricity Generation Co., Ltd., Korea Energy Solutions Co., Ltd., ITR Co., Ltd., STN Co., Ltd., Indeck Niles Development, LLC, Indeck Niles Asset Management, LLC, Hanwha Corporation-linked Sunlight Power Special Private Equity<br>Investment Trust No. 1, Suwon New Power Co., Ltd., Gwangbaek Solar Power Investment Co., Ltd., Go deok Clean Energy Co., Ltd., SureDataLab Co., Ltd., SEP Co., Ltd., Hankook Electric Power Information Co., Ltd., Tronix Co., Ltd., O2&B Global Co.,<br>Ltd., Muan Sunshine Solar Power Plant Co., Ltd., Bigeum Resident Photovoltaic Power Co., Ltd., Goesan Solar park Co., Ltd., Saemangeum Heemang Photovoltaic Co., Ltd., Bitgoel Eco Energy Co., Ltd., Jeju Gimnyeong Wind Power Co., Ltd., Seoroseoro<br>Sunny Power Plant Co., Ltd., Muan Solar Park Co., Ltd., YuDang Solar Co., Ltd., Anjwa Smart Farm & Solar City Co., Ltd., KPE Green Energy Co., Ltd., G.GURU Co., Ltd., UD4M Co., Ltd., Dongbu Highway Solar Co., Ltd., Seobu Highway Solar Co., Ltd.,<br>Korea Energy Data Co., Ltd., Gangneung Sacheon Fuel Cell Co., Ltd., Taebaek Gadeoksan Wind Power Co., Ltd., Chuncheon Green Energy Co., Ltd., Yeomsubong Wind Power Co., Ltd., Yeongyang Wind Power Corporation II, Haeparang Energy Co., Ltd.,<br>Saemangeum Sebit Power Plant Co., Ltd., PlatformN. Co., Ltd., PT. Cirebon Energi Prasarana, Future Convergence Technology Laboratory. Co., Ltd., ECO Motion Co., Ltd., REC’s Innovation Co., Ltd., ACE, Co., Ltd., Environment and Energy Co., Ltd.,<br>Green Radiation Co., Ltd., Santiago Solar Power SpA, Yanggu Floating Photovoltaic Power Plant Inc., Changwon SG energy Co., Ltd., Donpyung Technology. Co., Ltd., Power Embedded, HORANG ENERGY Inc., Hoenggye Renewable Energy Co., Ltd., Haman Green<br>Energy Co., Ltd., Songsan Green Energy Co., Ltd., SkyPic Inc., HyChangwon Fuel Cell. Co., Ltd., Dreams Co.,Ltd., DEEPAI Co.,Ltd., Amaala Sustainable Company for Energy
Joint ventures<br> <br>(117 entities) Daegu Green Power Co., Ltd., KEPCO SPC Power Corporation, KAPES, Inc., Honam Wind Power Co., Ltd., Korea Power Engineering Service Co., Ltd., Seokmun Energy Co., Ltd., Incheon New Power Co., Ltd., Chun-cheon Energy Co., Ltd.,<br>Yeonggwangbaeksu Wind Power Co., Ltd., KW Nuclear Components Co., Ltd., Busan Shinho Solar Power Co., Ltd., Global Trade Of Power System Co., Ltd., Expressway Solar-light Power Generation Co., Ltd., Gansu Datang Yumen Wind Power Co., Ltd., Datang<br>Chifeng Renewable Power Co., Ltd., Rabigh Electricity Company, Rabigh Operation & Maintenance Company Limited, Datang KEPCO Chaoyang Renewable Power Co., Ltd., Shuweihat Asia Power Investment B.V., Shuweihat Asia Operation & Maintenance<br>Company, Waterbury Lake Uranium L.P., ASM-BG Investicii AD, RES Technology AD, Jamaica Public Service Company Limited, KV Holdings, Inc., Amman Asia Electric Power Company, Kelar S.A., PT. Tanjung Power Indonesia, Nghi Son 2 Power LLC, Daehan Wind<br>Power PSC, MOMENTUM, Barakah One Company, Nawah Energy Company, Yeonggwang Wind Power Co., Ltd., Chester Solar IV SpA, Chester Solar V SpA, Diego de Almagro Solar SpA, South Jamaica Power Company Limited, Daesan Green Energy Co., Ltd., RE Holiday<br>Holdings LLC, RE Pioneer Holdings LLC, RE Barren Ridge 1 Holdings LLC, RE Astoria 2 LandCo LLC, RE Barren Ridge LandCo LLC, Laurel SpA, KIAMCO KOWEPO Bannerton Hold Co Pty Ltd, Cheong-Song Noraesan Wind Power Co., Ltd., Chester Solar I SpA, Solar<br>Philippines Calatagan Corporation, Saemangeum Solar Power Co., Ltd., Chungsongmeon BongSan wind power Co., Ltd., Jaeun Resident Wind Power Plant Co., Ltd., DE Energia SpA, Dangjin Eco Power Co., Ltd., Haemodum Solar Co., Ltd., Yangyang Wind Power<br>Co., Ltd., Horus Solar, S.A. de C.V., Recursos Solares PV de Mexico II, S.A. de C.V., Sunmex Renovables, S.A. de C.V., Stavro Holding II A.B., Solaseado Solar Power Co., Ltd., Yeongam Solar Power Co., Ltd., Samsu Wind Power Co., Ltd., Pulau Indah<br>Power Plant Sdn. Bhd., NH-Amundi Global Infrastructure Investment Private Investment Trust 21, Shin-han BNPP Private Investment Trust for East-West Sunlight Dream, PT Barito Wahana Tenaga, Cheongna Energy Co., Ltd., Boim Combined Heat and Power<br>Generation Co., Ltd., OneEnergy Asia Limited, KAS INVESTMENT I LLC, KAS INVESTMENT II LLC, Energyco Co., Ltd., CAES, LLC, Hapcheon Floating Photovoltaic Power Plant Inc., Busan Industrial Solar Power Co., Ltd., Bitsolar Energy Co., Ltd., Naepo Green<br>Energy Co., Ltd., Pulau Indah O&M Sdn. Bhd., Guadalupe Solar SpA, Omisan Wind Power Co., Ltd., Foresight Iberian Solar Group Holding, S.L., Yeongwol Eco Wind Co., Ltd., Gurae Resident Power Co., Ltd., Cheongju Eco Park Co., Ltd., Prime Swedish<br>Holding AB, Enel X Midland Photovoltaic, LLC, Geumsungsan Wind Power Co., Ltd., KEPCO KPS CARABAO Corp., Goheung New Energy Co., Ltd., Gunsan Land Solar Co., Ltd., CapMan Lynx SCA, SICAR, International Offshore Power Transmission Holding Company<br>Limited, Eumseong Eco Park Co., Ltd., Changwon Nu-ri Energy Co., Ltd., PungBack Wind Farm Corporation, Seobusambo highway photovoltaics Co., Ltd., Seungmun Green Energy, Pyeongchang Wind Power Co., Ltd., Trumbull Asset Management, LLC, S-Power Chile<br>SpA, Taebaek Wind Power Co., Ltd., Yangyang Suri Wind Power Co., Ltd., KEPCO for Power Company, Jeonju Bio Green Energy Co., Ltd., Kumyang Eco Park Co., Ltd., Jeongeup Green Power Co., Ltd., Hadong E-factory Co., Ltd., Namyangju Combined Heat and<br>Power Co., Ltd., Wadi Noor Solar Power Company SAOC, Fairhaven Energy Storage LLC, Rutile BESS Holdings, LLC, Trumbull Development Partners, LLC, Samcheok Eco Materials Co., Ltd., Imha Floating Photovoltaic Power Plant Inc., Roof One Energy Co.,<br>Ltd., EDFR KOWEPO AJBAN PV HOLDING LIMITED
Others<br>(1 entity) Korea Development Bank

215

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(2) Transactions between the Group and its subsidiaries are eliminated during the consolidation and are notdisclosed in notes.
--- ---
(3) The related party transactions for each of the two years in the period ended December 31, 2024 are asfollows:
--- ---

<Sales and Others>

In millions of won Sales and others
Company name Transaction type For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
<Associates>
Korea Gas Corporation Electricity sales ~~W~~ 149,095 140,630
Goseong Green Power Co., Ltd. Electricity sales 612,327 842,270
Dongducheon Dream Power Co., Ltd. Electricity sales 17,151 16,138
Saemangeum Sebit Power Plant Co., Ltd. Electricity sales 1,693 2,313
Daejung Offshore Wind Power Co., Ltd. Electricity sales 87 84
Daegu Photovoltaic Co., Ltd. Electricity sales 344 408
Haeng Bok Do Si Photovoltaic Power Co., Ltd. Electricity sales 3 3
Korea Electric Power Industrial Development Co., Ltd. Service 11,180 11,115
Gangneung Eco Power Co., Ltd. Fuel sales 494,428 943,063
Shin Pyeongtaek Power Co., Ltd. Electricity sales 55,610 91,830
Noeul Green Energy Co., Ltd. Electricity sales 8,009 8,431
Samcheok Eco Materials Co., Ltd.(*1) Electricity sales 615
YTN Co., Ltd. (*3) Electricity sales 2,908
Busan Green Energy Co., Ltd. Electricity sales 11,794 10,733
Energy Infra Asset Management Co., Ltd. Electricity sales 89 89
Gangwon Wind Power Co., Ltd. Electricity sales 1,736 2,464
Gwangyang Green Energy Co., Ltd. Electricity sales 1,479 1,492
Bigeum Resident Photovoltaic Power Co., Ltd. Electricity sales 919 888
Yanggu Floating Photovoltaic Power Plant Inc. Electricity sales 6
Hyundai Green Power Co., Ltd. Electricity sales and design service 6,659 6,668
Korea Power Exchange Service 78,346 52,262
Taebaek Guinemi Wind Power Co., Ltd. Electricity sales 26
Daeryun Power Co., Ltd. Electricity sales 3,628 3,187
GS Donghae Electric Power Co., Ltd. Electricity sales 9,284 28,164
KNH Solar Co., Ltd. Electricity sales 1,635 15
S-Power Co., Ltd. Service 2,359 4,965
Chuncheon Green Energy Co., Ltd. Electricity sales 11,010 82
Yeongyang Wind Power Corporation II Comission 150 150
PND solar Co., Ltd. Electricity sales 348 547
Hyundai Eco Energy Co., Ltd. Electricity sales 833 1,236
YeongGwang Yaksu Wind Electric Co., Ltd. Electricity sales 237 96
Taebaek Gadeoksan Wind Power Co., Ltd. Electricity sales 2,464 3,998
Korea Energy Solutions Co., Ltd. Electricity sales 2 2
ITR Co., Ltd. Others 3
STN Co., Ltd. Others 1
Namjeongsusang Solar Power Operation Co., Ltd. (*2) Electricity sales 31
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust<br>No. 1 Others 360 405
Bitgoel Eco Energy Co., Ltd. Electricity sales 3,377 1,581
Jeju Gimnyeong Wind Power Co., Ltd. Electricity sales 458 315
Seoroseoro Sunny Power Plant Co., Ltd. Electricity sales 2 2
Muan Solar Park Co., Ltd. Electricity sales 1,797 3,083
YuDang Solar Co., Ltd. Electricity sales 60 100
Anjwa Smart Farm & Solar City Co., Ltd. Electricity sales 971 2,479
KPE Green Energy Co., Ltd. Others 226 163
Saemangeum Heemang Photovoltaic Co., Ltd. Electricity sales 2,232 3,538
UD4M Co., Ltd. Electricity sales 8 3
Dongbu Highway Solar Co., Ltd. Electricity sales 11 11
Seobu Highway Solar Co., Ltd. Electricity sales 13 12
Songsan Green Energy Co., Ltd. Interest income/ Dividends income 174

216

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(3) Related party transactions for each of the two years in the period ended December 31, 2024 are asfollows, continued:
--- ---
In millions of won Sales and others
--- --- --- --- --- --- ---
Company name Transaction type For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
<Associates>
Gwangbaek Solar Power Investment Co., Ltd. Electricity sales ~~W~~ 523 644
Go deok Clean Energy Co., Ltd. Electricity sales 11,376 4,685
Changwon SG Energy Co., Ltd. Electricity sales 9
Suwon New Power Co., Ltd. Electricity sales (102 ) 91
SureDataLab Co., Ltd. Electricity sales 1
Muan Sunshine Solar Power Plant Co., Ltd. Electricity sales 630 403
Gangneung Sacheon Fuel Cell Co., Ltd. Electricity sales 8,343 133
PlatformN. Co., Ltd. Others 16
13 Associates (Overseas) Others 243,651 386,191
<Joint ventures>
Daegu Green Power Co., Ltd. Electricity sales 2,385 1,694
Seobusambo highway photovoltaics Co., Ltd. Electricity sales 20 16
Yangyang Suri Wind Power Co., Ltd. Service 202 169
KAPES, Inc. Commission 1,531 1,604
Honam Wind Power Co., Ltd. Electricity sales 529 610
Korea Power Engineering Service Co., Ltd. Service 777 159
Seokmun Energy Co., Ltd. Service 1,774 1,792
Incheon New Power Co., Ltd. Others 26 458
Naepo Green Energy Co., Ltd. Electricity sales 3,972 3,462
Chun-cheon Energy Co., Ltd. Electricity sales 968 2,976
Yeonggwangbaeksu Wind Power Co., Ltd. Electricity sales 2,031 1,962
Cheongna Energy Co., Ltd. Others 38,349 32,835
Namyangju Combined Heat and Power Co., Ltd. Service 2,493
Yeonggwang Wind Power Co., Ltd. Electricity sales 943 3,607
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 Others 1,568
Seungmun Green Energy Electricity sales 79
KW Nuclear Components Co., Ltd. Service 1,645 1,612
Boim Combined Heat and Power Generation Co., Ltd. Service 2,073 2,110
Taebaek Wind Power Co., Ltd. Others 41 2,864
Pyeongchang Wind Power Co., Ltd. Electricity sales 771 2,087
Busan Shinho Solar Power Co., Ltd. Electricity sales 699 1,205
Expressway Solar-light Power Generation Co., Ltd. Electricity sales 43
Goheung New Energy Co., Ltd. Electricity sales 3,106 3,214
Gunsan Land Solar Co., Ltd. Electricity sales 944 809
Daesan Green Energy Co., Ltd. Electricity sales 426 760
Cheong-Song Noraesan Wind Power Co., Ltd. Electricity sales 38 901
Chungsongmeon BongSan wind power Co., Ltd. Electricity sales 1 1
Dangjin Eco Power Co., Ltd. Electricity sales 42 40
Yangyang Wind Power Co., Ltd. Electricity sales 238 13
Energyco Co., Ltd. Electricity sales 161 457
Hapcheon Floating Photovoltaic Power Plant Inc. Electricity sales 905 88
Busan Industrial Solar Power Co., Ltd. Electricity sales 23 22
Bitsolar Energy Co., Ltd. Electricity sales 464 357
Omisan Wind Power Co., Ltd. Electricity sales 279 26
Changwon Nu-ri Energy Co., Ltd. Service 171
Jeonju Bio Green Energy Co., Ltd. Service 170
Haemodum Solar Co., Ltd. Electricity sales 39 431
Yeongam Solar Power Co., Ltd. Electricity sales 545 1,131
Samsu Wind Power Co., Ltd. Electricity sales 301 514
Solaseado Solar Power Co., Ltd. Electricity sales 1,870 1,876
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream Dividends income 87
Yeongwol Eco Wind Co., Ltd. Electricity sales 102

217

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(3) Related party transactions for each of the two years in the period ended December 31, 2024 are asfollows, continued:
--- ---
In millions of won Sales and others
--- --- --- --- --- ---
Company name Transaction type For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
<Joint ventures>
Gurae Resident Power Co., Ltd. Electricity sales 8
Cheongju Eco Park Co., Ltd. Electricity sales 316 6,397
Enel X Midland Photovoltaic, LLC Electricity sales 11 11
Geumsungsan Wind Power Co., Ltd. Electricity sales 58 68
Eumseong Eco Park Co., Ltd. Electricity sales 19 19
43 Joint ventures (Overseas) Others 518,941 747,301
<Others>
Korea Development Bank Electricity sales 4,368 5,467
Interest income 10,324 5,930

218

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(3) Related party transactions for each of the two years in the period ended December 31, 2024 are asfollows, continued:
--- ---

<Purchase and Others>

In millions of won Purchase and others
Company name Transaction type For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
<Associates>
Korea Gas Corporation Electricity sales ~~W~~ 6,623,974 8,873,781
Goseong Green Power Co., Ltd. Electricity sales 1,301,710 1,572,074
Dongducheon Dream Power Co., Ltd. Electricity sales 1,360,837 1,744,247
Saemangeum Sebit Power Plant Co., Ltd. Electricity sales 19,753 22,365
Daegu Photovoltaic Co., Ltd. Electricity sales 3,815 4,247
Haeng Bok Do Si Photovoltaic Power Co., Ltd. Electricity sales 427 408
Korea Electric Power Industrial Development Co., Ltd. Service 317,114 305,105
Gangneung Eco Power Co., Ltd. Others 1,134 6,996
Shin Pyeongtaek Power Co., Ltd. Electricity sales 843,056 1,040,965
Noeul Green Energy Co., Ltd. Electricity sales 20,833 10,466
Samcheok Eco Materials Co., Ltd.(*1) Electricity sales 8,130
YTN Co., Ltd. (*3) Electricity sales 309
Busan Green Energy Co., Ltd. Electricity sales 28,272 23,211
Energy Infra Asset Management Co., Ltd. Others 2,631 2,701
Yaksu ESS Co., Ltd. Electricity sales 749 508
Gangwon Wind Power Co., Ltd. Electricity sales 23,400 32,525
Bigeum Resident Photovoltaic Power Co., Ltd. Others 285
Yanggu Floating Photovoltaic Power Plant Inc. Electricity sales 562
Goesan Solar park Co., Ltd. Electricity sales 6,143 6,530
Korea Power Exchange Service 90,549 82,572
Taebaek Guinemi Wind Power Co., Ltd. Electricity sales 5,155 5,529
Daeryun Power Co., Ltd. Electricity sales 282,968 353,371
GS Donghae Electric Power Co., Ltd. Electricity sales 519,119 1,047,584
KNH Solar Co., Ltd. Electricity sales 2,671 3,535
S-Power Co., Ltd. Service 693,948 973,646
Chuncheon Green Energy Co., Ltd. Electricity sales 39,333
Yeongyang Wind Power Corporation II Comission 17,898 1,457
PND solar Co., Ltd. Electricity sales 5,231 5,301
Hyundai Eco Energy Co., Ltd. Electricity sales 26,253 26,266
YeongGwang Yaksu Wind Electric Co., Ltd. Electricity sales 7,415 6,776
Taebaek Gadeoksan Wind Power Co., Ltd. Electricity sales 32,549 34,940
Korea Energy Solutions Co., Ltd. Electricity sales 132 128
STN Co., Ltd. Others 8 10
Green Energy Electricity Generation Co., Ltd. Electricity sales 1,966 948
Bitgoel Eco Energy Co., Ltd. Service and others 32,413 28,334
Jeju Gimnyeong Wind Power Co., Ltd. Electricity sales 10,161 8,635
Seoroseoro Sunny Power Plant Co., Ltd. REC and others 991 874
Muan Solar Park Co., Ltd. REC and others 17,825 16,554
YuDang Solar Co., Ltd. REC and others 2,020 1,860
Anjwa Smart Farm & Solar City Co., Ltd. Electricity sales 19,494 17,332
KPE Green Energy Co., Ltd. (formerly, Daewon Green Energy Co., Ltd.) Others 41,197 62,212
Saemangeum Heemang Photovoltaic Co., Ltd. Electricity sales 2,745 440
UD4M Co., Ltd. Electricity sales 117
Dongbu Highway Solar Co., Ltd. Electricity sales 2,951 2,937
Seobu Highway Solar Co., Ltd. Electricity sales 2,899 2,880
REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.) Interest income/ Dividends income 23 6
Dreams Co.,Ltd. Others 30
DEEPAI Co.,Ltd. Others 30
Green Radiation Co., Ltd. Ordinary development expense 45 11

219

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(3) Related party transactions for each of the two years in the period ended December 31, 2024 are asfollows, continued:
--- ---
In millions of won Purchase and others
--- --- --- --- --- ---
Company name Transaction type For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
<Associates>
Gwangbaek Solar Power Investment Co., Ltd. Electricity sales ~~W~~ 499 565
Go deok Clean Energy Co., Ltd. Electricity sales 35,055 11,545
Changwon SG Energy Co., Ltd. Electricity sales 1,080
SureDataLab Co., Ltd. Others 72
Muan Sunshine Solar Power Plant Co., Ltd. Electricity sales 15,697 16,328
Gangneung Sacheon Fuel Cell Co., Ltd. Electricity sales 32,689 1,324
PlatformN. Co., Ltd. Others 237
13 Associates (Overseas) Others 98,753 91,233
<Joint ventures>
Daegu Green Power Co., Ltd. Electricity sales 328,485 370,787
Seobusambo highway photovoltaics Co., Ltd. Electricity sales 825 502
KAPES, Inc. Commission 23,924 19,112
Honam Wind Power Co., Ltd. Electricity sales 7,148 8,643
Korea Power Engineering Service Co., Ltd. Others 551 812
Seokmun Energy Co., Ltd. Others 51,924 60,009
Chun-cheon Energy Co., Ltd. Electricity sales 430,697 585,656
Yeonggwangbaeksu Wind Power Co., Ltd. Electricity sales 12,294 17,228
Samcheok Eco Materials Co., Ltd. (*1) Electricity sales 3,282
Cheongna Energy Co., Ltd. Service 60 60
Yeonggwang Wind Power Co., Ltd. Electricity sales 31,712 40,605
Seungmun Green Energy Electricity sales 25,725
KW Nuclear Components Co., Ltd. Service 6,880 14,114
Boim Combined Heat and Power Generation Co., Ltd. Service 3,038 8,151
Taebaek Wind Power Co., Ltd. Service 6,327 7,476
Pyeongchang Wind Power Co., Ltd. Electricity sales 3,079 3,542
Busan Shinho Solar Power Co., Ltd. Electricity sales 8,467 10,248
Global Trade Of Power System Co., Ltd. Service 511 223
Expressway Solar-light Power Generation Co., Ltd. Electricity sales 3,165 3,362
Goheung New Energy Co., Ltd. Electricity sales 10,133 5,264
Gunsan Land Solar Co., Ltd. Electricity sales 2,752 486
Daesan Green Energy Co., Ltd. Electricity sales 154,623 139,721
Cheong-Song Noraesan Wind Power Co., Ltd. Electricity sales 2,048 882
Dangjin Eco Power Co., Ltd. Electricity sales 3,645 5,583
Yangyang Wind Power Co., Ltd. Service and Electricity sales 3,599 10
Energyco Co., Ltd. Electricity sales 5,788 6,539
Hapcheon Floating Photovoltaic Power Plant Inc. Service and REC 4,759
Busan Industrial Solar Power Co., Ltd. Electricity sales 2,493 3,656
Bitsolar Energy Co., Ltd. Electricity sales 9,072 12,946
Omisan Wind Power Co., Ltd. Electricity sales 638
Haemodum Solar Co., Ltd. Electricity sales 544 402
Yeongam Solar Power Co., Ltd. Electricity sales 24,004 34,981
Samsu Wind Power Co., Ltd. Electricity sales 6,864 8,269
Solaseado Solar Power Co., Ltd. Electricity sales 24,899 18,259
Yeongwol Eco Wind Co., Ltd. Electricity sales 2,496
Gurae Resident Power Co., Ltd. Electricity sales 476 1
Cheongju Eco Park Co., Ltd. Electricity sales 34,601 95,059
Enel X Midland Photovoltaic, LLC Electricity sales 3,200 2,431
Eumseong Eco Park Co., Ltd. Electricity sales 26,372 27,765
43 Joint ventures (Overseas) Others 14,796 17,222
<Others>
Korea Development Bank Interest expense 7,839 5,559
(*1) Samcheok Eco Materials Co., Ltd. was reclassified from an associate to a joint venture for the year ended<br>December 31, 2024.
--- ---
(*2) Namjeongsusang Solar Power Operation Co., Ltd. is not a related party of the Group as of December 31, 2024, as<br>the sale of shares was completed for the year ended December 31, 2023.
--- ---
(*3) YTN Co., Ltd. is not a related party of the Group as of December 31, 2024, as the sale of shares was completed<br>for the year ended December 31, 2024.
--- ---

220

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(4) Receivables and payables arising from the related party transactions as of December 31, 2024 and 2023are as follows:
--- ---
In millions of won Receivables Payables
--- --- --- --- --- --- --- --- --- ---
Company name Type As ofDecember 31, 2024 As ofDecember 31, 2023 As ofDecember 31, 2024 As ofDecember 31, 2023
<Associates>
Korea Gas Corporation Trade receivables ~~W~~ 15,766 14,671
Non-trade receivables and others 404 12,513
Trade payables 482,008 480,974
Non-trade payables and others 1,486 1,378
Goseong Green Power Co., Ltd. Trade receivables 30,732 55,719
Non-trade receivables and others 1,438 15
Trade payables 162,719 120,270
Non-trade payables and others 45,174 48,621
Dongducheon Dream Power Co., Ltd. Trade receivables 6,350 2,573
Non-trade receivables and others 637 478
Trade payables 114,962 117,975
Non-trade payables and others 29
Saemangeum Sebit Power Plant Co., Ltd. Trade receivables 156
Non-trade receivables and others 47 341
Trade payables 1,499
Green Radiation Co., Ltd. Non-trade payables and others 30
Daejung Offshore Wind Power Co., Ltd. Non-trade receivables and others 349 263
Daegu Photovoltaic Co., Ltd. Trade payables 108 105
Korea Electric Power Industrial Trade receivables 123 176
Development Co., Ltd. Trade payables 1,291 2,021
Non-trade payables and others 8,832 8,077
Gangneung Eco Power Co., Ltd. Trade receivables 8,142 59,623
Non-trade payables and others 105 94
Shin Pyeongtaek Power Co., Ltd. Trade receivables 1,720 1,814
Non-trade receivables and others 5,812 4,933
Trade payables 77,222 86,801
Non-trade payables and others 2,450 385
Noeul Green Energy Co., Ltd. Trade receivables 5 6
Non-trade receivables and others 27,043 18,356
Non-trade payables and others 3,699 3,005
Samcheok Eco Materials Co., Ltd. (*1) Trade receivables 33
YTN Co., Ltd. (*2) Trade receivables 133
Busan Green Energy Co., Ltd. Trade receivables 1 1
Non-trade receivables and others 43,790 32,720
Non-trade payables and others 4,799 3,642
Energy Infra Asset Management Co., Ltd. Non-trade payables and others 1
Yaksu ESS Co., Ltd. Trade payables 923 538
Gangwon Wind Power Co., Ltd. Trade receivables 10 13
Trade payables 4,023 3,206
Gwangyang Green Energy Co., Ltd. Trade receivables 1,040 1,069
Non-trade receivables and others 1,016 716
Bigeum Resident Photovoltaic Power Co., Ltd. Trade receivables 273 406
Non-trade receivables and others 1,796 1,316
Goesan Solar park Co., Ltd. Trade payables 56
Hyundai Green Power Co., Ltd. Trade receivables 893 903
Korea Power Exchange Trade receivables 2,434 1,583
Non-trade receivables and others 1
Trade payables 2,688 16,367
Non-trade payables and others 1,571 2,520
Taebaek Guinemi Wind Power Co., Ltd. Trade payables 840 572
Non-trade payables and others 167 286
Daeryun Power Co., Ltd. Trade receivables 326
Trade payables 35,392 32,140

221

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(4) Receivables and payables arising from related party transactions as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won Receivables Payables
--- --- --- --- --- --- --- --- --- ---
Company name Type As ofDecember 31, 2024 As ofDecember 31, 2023 As ofDecember 31, 2024 As ofDecember 31, 2023
<Associates>
GS Donghae Electric Power Co., Ltd. Trade receivables ~~W~~ 22 159
Non-trade receivables and others 109 169
Trade payables 90,468 72,951
Non-trade payables and others 125
KNH Solar Co., Ltd. Trade receivables 1
Trade payables 19
Non-trade payables and others 1
S-Power Co., Ltd. Trade receivables 264 213
Non-trade receivables and others 54 53
Trade payables 73,377 79,459
Non-trade payables and others 19
Chuncheon Green Energy Co., Ltd. Non-trade receivables and others 10,870
Non-trade payables and others 8,881
Yeongyang Wind Power Corporation II Non-trade receivables and others 165
Trade payables 3,978
PND solar Co., Ltd. Trade payables 418 296
Hyundai Eco Energy Co., Ltd. Trade receivables 25 28
Trade payables 647 408
YeongGwang Yaksu Wind Electric Co., Ltd. Trade receivables 7 10
Non-trade receivables and others 2,858 2,294
Trade payables 1,034 828
Taebaek Gadeoksan Wind Power Co., Ltd. Non-trade receivables and others 62 1,539
Trade payables 9,249 12,739
Non-trade payables and others 1 7
Green Energy Electricity Generation Co., Ltd. Trade payables 62
Non-trade payables and others 45
Bitgoel Eco Energy Co., Ltd. Trade payables 5,394 6,226
Non-trade receivables and others 2 131
Non-trade payables and others 1,458
Jeju Gimnyeong Wind Power Co., Ltd. Non-trade receivables and others 143 112
Trade payables 2,152 1,467
Non-trade payables and others 5 9
Muan Solar Park Co., Ltd. Non-trade receivables and others 4 4
Anjwa Smart Farm & Solar City Co., Ltd. Non-trade payables and others 1,797 1,296
KPE Green Energy Co., Ltd. Trade receivables 1 1
Non-trade receivables and others 130
Trade payables 5,521 5,485
Saemangeum Heemang Photovoltaic Co., Ltd. Non-trade receivables and others 1
Dongbu Highway Solar Co., Ltd. Trade receivables 1 1
Trade payables 241
Non-trade payables and others 1
Seobu Highway Solar Co., Ltd. Trade receivables 1 1
Trade payables 231
Non-trade payables and others 2
Songsan Green Energy Co., Ltd. Non-trade receivables and others 190
Dreams Co., Ltd. Non-trade receivables and others 1
Non-trade payables and others 30
DEEPAI Co., Ltd. Non-trade receivables and others 1
Non-trade payables and others 30
Go deok Clean Energy Co., Ltd. Non-trade receivables and others 10,118 4,562
Non-trade payables and others 3,022 5,288

222

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(4) Receivables and payables arising from related party transactions as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won Receivables Payables
--- --- --- --- --- --- --- --- --- ---
Company name Type As ofDecember 31, 2024 As ofDecember 31, 2023 As ofDecember 31, 2024 As ofDecember 31, 2023
<Associates>
Suwon New Power Co., Ltd. Trade receivables ~~W~~ 876
Non-trade receivables and others 560
Non-trade payables and others 1
Muan Sunshine Solar Power Plant Co., Ltd. Trade payables 1,954 1,440
Gangneung Sacheon Fuel Cell Co., Ltd. Trade receivables 8,343
Non-trade payables and others 3,201
9 Associates (Overseas) Trade receivables 59,651 77,814
Non-trade payables and others 6,242
<Joint ventures>
Daegu Green Power Co., Ltd. Trade receivables 182 122
Non-trade receivables and others 503 55
Trade payables 25,622 32,222
Seobusambo highway photovoltaics Co., Ltd. Trade receivables 1 1
Non-trade receivables and others 4 4
Yangyang Suri Wind Power Co., Ltd. Non-trade receivables and others 55 55
KAPES, Inc. Trade receivables 4 4
Non-trade receivables and others 90,088 89
Non-trade payables and others 3,041 3,791
Honam Wind Power Co., Ltd. Trade payables 515 515
Korea Power Engineering Service Co., Ltd. Non-trade receivables and others 52 48
Non-trade payables and others 76
Seokmun Energy Co., Ltd. Trade receivables 35 44
Non-trade receivables and others 862 199
Trade payables 7,156 7,000
Incheon New Power Co., Ltd. Trade receivables 9
Naepo Green Energy Co., Ltd. Trade receivables 325 190
Non-trade receivables and others 458 1
Chun-cheon Energy Co., Ltd. Trade receivables 239
Non-trade receivables and others 165
Trade payables 35,325 79,117
Non-trade payables and others 2
Yeonggwangbaeksu Wind Power Co., Ltd. Trade receivables 9 10
Non-trade receivables and others 178
Trade payables 962 1,076
Cheongna Energy Co., Ltd. Trade receivables 7,033 13,898
Non-trade receivables and others 3,229 2,160
Non-trade payables and others 8 1
Yeonggwang Wind Power Co., Ltd. Trade receivables 12 15
Non-trade receivables and others 58 56
Trade payables 4,591 2,251
Seungmun Green Energy Non-trade receivables and others 34
KW Nuclear Components Co., Ltd. Non-trade receivables and others 17
Boim Combined Heat and Power Generation Co., Ltd. Trade receivables 47 84
Non-trade receivables and others 3,208 10,779
Trade payables 445 721
Non-trade payables and others 13,824 14,193
Taebaek Wind Power Co., Ltd. Trade payables 691 603
Non-trade payables and others 184 341
Trade receivables 4
Busan Shinho Solar Power Co., Ltd. Trade receivables 3 3
Trade payables 915 304

223

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(4) Receivables and payables arising from related party transactions as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won Receivables Payables
--- --- --- --- --- --- --- --- --- ---
Company name Type As ofDecember 31,2024 As ofDecember 31,2023 As ofDecember 31,2024 As ofDecember 31,2023
<Joint ventures>
Global Trade Of Power System Co., Ltd. Non-trade payables and others ~~W~~ 7
Expressway Solar-light Power Generation Co., Ltd. Trade payables 432 220
Goheung New Energy Co., Ltd. Trade receivables 21
Non-trade receivables and others 8
Gunsan Land Solar Co., Ltd. Non-trade receivables and others 217 295
Daesan Green Energy Co., Ltd. Trade receivables 4 13
Non-trade receivables and others 211 170
Trade payables 3,819 4,946
Cheong-Song Noraesan Wind Power Co., Ltd. Trade receivables 2
Saemangeum Solar Power Co., Ltd. Non-trade receivables and others 4,368 4,368
Dangjin Eco Power Co., Ltd. Trade receivables 4 4
Trade payables 282 222
Non-trade payables and others 181 176
Yangyang Wind Power Co., Ltd. Non-trade receivables and others 163 13
Energyco Co., Ltd. Non-trade receivables and others 124 3
Trade payables 432 99
Hapcheon Floating Photovoltaic Power Plant Inc. Trade receivables 12 10
Non-trade receivables and others 59 68
Busan Industrial Solar Power Co., Ltd. Trade receivables 2 2
Trade payables 240
Bitsolar Energy Co., Ltd. Trade receivables 12
Non-trade receivables and others 444 1
Trade payables 207 201
Omisan Wind Power Co., Ltd. Non-trade receivables and others 146
Changwon Nu-ri Energy Co., Ltd. Non-trade receivables and others 188
Jeonju Bio Green Energy Co., Ltd. Non-trade receivables and others 187
Haemodum Solar Co., Ltd. Trade receivables 1 1
Yeongam Solar Power Co., Ltd. Trade receivables 48 56
Trade payables 5,723 3,517
Samsu Wind Power Co., Ltd. Trade payables 1,834 1,229
Solaseado Solar Power Co., Ltd. Non-trade receivables and others 15 24
Cheongju Eco Park Co., Ltd. Trade receivables 6,899
Non-trade receivables and others 13,461
Trade payables 9,105 7,994
Non-trade payables and others 2,853
Enel X Midland Photovoltaic, LLC Trade receivables 1 1
Trade payables 204 144
Non-trade payables and others 59 49
Geumsungsan Wind Power Co., Ltd. Trade receivables 3 4
27 Joint ventures (Overseas) Trade receivables 271,219 160,474
Non-trade receivables and others 59,839 55,897
Non-trade payables and others 34,932 22,877
<Others>
Korea Development Bank Non-trade receivables and others 34,138 33,140
Non-trade payables and others 231 147
Derivatives and others 273,627 45,898 2,421 72,050
(*1) Samcheok Eco Materials Co., Ltd. was reclassified from an associate to a joint venture for the year ended<br>December 31, 2024.
--- ---
(*2) YTN Co., Ltd. is not a related party of the Group as of December 31, 2024, as the sale of shares was completed<br>for the year ended December 31, 2024.
--- ---

224

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(5) Loans and others arising from the related party transactions as of December 31, 2024 and 2023 are asfollows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Type Company name Beginningbalance Loans Collection Others Ending<br>balance
Associates KNOC Nigerian East Oil Co., Ltd.,<br> <br>KNOC<br>Nigerian West Oil Co., Ltd. ~~W~~ 32,153 913 33,066
(Allowance for doubtful accounts) (25,543 ) (913 ) (6,610 ) (33,066 )
Associates Nepal Water & Energy Development Company Private Limited 18,052 (18,052 )
Associates Xe-Pian Xe-Namnoy Power Co., Ltd. 23,337 3,269 26,606
Associates PT. Cirebon Energi Prasarana 35,542 (3,658 ) 6,981 38,865
Associates Bigeum Resident Photovoltaic Power Co., Ltd. 9,525 (9,525 )
Associates Daejung Offshore Wind Power Co., Ltd. 1,000 1,000
Associates Bitgoel Eco Energy Co., Ltd. 30,885 (4,260 ) 26,625
Associates Saemangeum Sebit Power Plant Co., Ltd. 28,970 (1,420 ) 27,550
Joint ventures Solaseado Solar Power Co., Ltd. 35,000 (71 ) 34,929
Joint ventures Recursos Solares PV de Mexico II, S.A. de C.V. 10,589 2,074 1,650 14,313
Joint ventures Horus Solar, S.A. de C.V. 11,199 798 1,680 13,677
Joint ventures Sunmex Renovables, S.A. de C.V. 17,210 2,018 2,565 21,793
Joint ventures Kelar S.A. 40,985 (11,582 ) (10,112 ) 19,291
Joint ventures DE Energia SpA 7,386 1,034 8,420
Joint ventures Daehan Wind Power PSC 14,872 2,084 16,956
Joint ventures Bitsolar Energy Co., Ltd. 3,165 3,165
Joint ventures Daesan Green Energy Co., Ltd. 2,411 80 2,491
Joint ventures Yangyang Wind Power Co., Ltd. 3,257 3,257
Joint ventures Nghi Son 2 Power LLC 189,991 (43,906 ) 22,516 168,601
Joint ventures Pulau Indah Power Plant Sdn. Bhd. 9,963 (9,963 )
Joint ventures Guadalupe Solar SpA 3,161 (232 ) 423 3,352
Joint ventures Foresight Iberian Solar Group Holding, S.L. 64,318 222 6,597 71,137
Joint ventures Capman Lynx SCA, SICAR 35,210 35,210
(Allowance for doubtful accounts) (35,210 ) (35,210 )
Joint ventures S-Power Chile SpA 258 36 294
Joint ventures Omisan Wind Power Co., Ltd. 8,894 8,894
~~W~~ 567,686 14,086 (83,181 ) 12,625 511,216
(6) Borrowings arising from the related party transactions as of December 31, 2024 and 2023 are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- --- --- --- ---
Related parties Type Beginningbalance Borrowings Repayment Others Ending<br>balance
Korea Development Bank Facility ~~W~~ 85,103 (8,469 ) 8,019 84,653
Others 1,758 (334 ) 1,424
Operating funds 120,000 832,167 (852,167 ) 100,000
EBL and others 119,160 20,050 (995 ) 11,647 149,862
~~W~~ 326,021 852,217 (861,965 ) 19,666 335,939

225

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(7) Guarantees provided to the related parties as of December 31, 2024 are as follows:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Primary guarantor Principal obligor Type of guarantees Credit limit Creditor
Korea Electric Power Corporation Shuweihat Asia Operation & Maintenance Company Performance guarantees USD 11,000 Shuweihat Asia Power Investment B.V.
Korea Electric Power Corporation Rabigh Operation & Maintenance Company Limited Performance guarantees USD 1,387 Rabigh Electricity Company
Korea Electric Power Corporation Nghi Son 2 Power LLC Certification of payment on L/C USD 42,750 SMBC Singapore and others
Korea Electric Power Corporation Barakah One Company Debt guarantees USD 1,223,355 Export-Import Bank of Korea and others
Performance guarantees and others USD 3,986,562 FAB and others
Korea Electric Power Corporation RE Holiday Holdings LLC Performance guarantees (*9) USD 203,981 EFS Renewables Holdings, LLC, CA-CIB and others
Korea Electric Power Corporation RE Pioneer Holdings LLC Performance guarantees USD 106,873 EFS Renewables Holdings, LLC
Korea Electric Power Corporation Rabigh Electricity Company Performance guarantees SAR 4,151 Hana Bank
Korea Electric Power Corporation Shuweihat Asia Power Investment B.V. Certification of payment on L/C USD 9,800 Hana Bank
Korea Electric Power Corporation Amman Asia Electric Power Company Certification of payment on L/C USD 15,600 ING Bank
Korea Electric Power Corporation Horus Solar, S.A. de C.V. Other performance guarantees MXN 14,843 CENACE and others
Korea Electric Power Corporation Recursos Solares PV de Mexico II, S.A. de C.V. Other performance guarantees MXN 1,518 SEMARNAT
USD 393 CFE Transmission
Korea Electric Power Corporation Sunmex Renovables, S.A. de C.V. Other performance guarantees USD 9,078 CENACE
MXN 4,929 CFE Transmission and others
Korea Electric Power Corporation International Offshore Power Transmission Holding Company Limited Performance guarantees USD 52,500 Mizuho Bank
Other performance guarantees USD 7,000 Credit Agricole
Korea Electric Power Corporation Pulau Indah Power Plant Sdn. Bhd. Collateralized money invested (*10) KRW 13,210 Malaysian Trustee Berhad
Korea Electric Power Corporation KEPCO for Power Company Debt guarantees USD 60,000 Riyad bank
Other performance guarantees USD 70,000 SMBC Seoul
Korea Western Power Co., Ltd. Cheongna Energy Co., Ltd. Collateralized money invested KRW 46,158 Kookmin Bank and others
Guarantees for supplemental funding (*1)
Korea Western Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Collateralized money invested KRW 73,064 Krung Thai Bank
Impounding bonus guarantees (*11) USD 5,000 SK Eco Plant Co., Ltd.
Korea Western Power Co., Ltd. Rabigh Operation & Maintenance Company Limited Performance guarantees and others SAR 11,200 National Bank of Kuwait
Korea Western Power Co., Ltd. Dongducheon Dream Power Co., Ltd. Collateralized money invested (*5) KRW 54,242 Kookmin Bank and others
Debt guarantees KRW 20,300 HY western 1^st^ co., Ltd
Korea Western Power Co., Ltd. PT. Mutiara Jawa Collateralized money invested KRW 5,735
Korea Western Power Co., Ltd. Haeng Bok Do Si Photovoltaic Power Co., Ltd. Collateralized money invested KRW 361 Nonghyup Bank
Korea Western Power Co., Ltd. Shin Pyeongtaek Power Co., Ltd. Collateralized money invested KRW 139,059 Kookmin Bank and others
Guarantees for supplemental funding (*1)
Korea Western Power Co., Ltd. Haemodum Solar Co., Ltd. Collateralized money invested KRW 3,230 Nonghyup Bank
Korea Western Power Co., Ltd. Muan Solar Park Co., Ltd. Collateralized money invested KRW 6,267 IBK and others
Korea Western Power Co., Ltd. Anjwa Smart Farm & Solar City Co., Ltd. Collateralized money invested KRW 8,298 Hana Bank and others
Korea Western Power Co., Ltd. Seoroseoro Sunny Power Plant Co., Ltd. Collateralized money invested KRW 1,030 Hana Bank and others

226

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(7) Guarantees provided to the related parties as of December 31, 2024 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Primary guarantor Principal obligor Type of guarantees Credit limit Creditor
Korea Western Power Co., Ltd. YuDang Solar Co., Ltd. Collateralized money invested KRW 617 Hana Bank and others
Guarantees for supplemental funding (*1)
Korea Western Power Co., Ltd. Hapcheon Floating Photovoltaic Power Plant Inc. Collateralized money invested KRW 11,334 Nonghyup Bank and others
Korea Western Power Co., Ltd. Yeongwol Eco Wind Co., Ltd. Collateralized money invested KRW 890 Hana Bank and others
Guarantees for supplemental funding (*1)
Korea Western Power Co., Ltd. Gurae Resident Power Co., Ltd. Collateralized money invested KRW 334 Hana Bank and others
Guarantees for supplemental funding (*1)
Korea Western Power Co., Ltd. Gunsan Land Solar Co., Ltd. Collateralized money invested KRW 23,163 Hana Bank and others
Korea Western Power Co., Ltd. Seobusambo highway photovoltaics Co., Ltd. Collateralized money invested KRW 3,310 Hana Bank and others
Guarantees for supplemental funding (*1)
Korea Western Power Co., Ltd. Eumseong Eco Park Co., Ltd. Collateralized money invested KRW 11,613 Kyobo Life Insurance Co., Ltd. and others
Korea Western Power Co., Ltd. PungBack Wind Farm Corporation Collateralized money invested KRW 7,760 Hanwha Life Insurance Co., Ltd. and others
Korea Western Power Co., Ltd. Wadi Noor Solar Power Company SAOC Loan payment guarantee USD 54,855 DBS Bank
Korea Western Power Co., Ltd. EDFR KOWEPO AJBAN HOLDING LIMITED Loan payment guarantee USD 57,090 FAB
Korea East-West Power Co., Ltd. Seokmun Energy Co., Ltd. Collateralized money invested KRW 15,456 Kookmin Bank and others
Guarantees for supplemental funding (*1)
Korea East-West Power Co., Ltd. Chun-cheon Energy Co., Ltd. Collateralized money invested KRW 36,599 Kookmin Bank and others
Guarantees for supplemental funding (*1) KRW 90,800
Korea East-West Power Co., Ltd. Honam Wind Power Co., Ltd. Collateralized money invested KRW 4,833 Shinhan Bank and others
Korea East-West Power Co., Ltd. GS Donghae Electric Power Co., Ltd. Collateralized money invested KRW 279,432 Korea Development Bank and others
Korea East-West Power Co., Ltd. Yeonggwangbaeksu Wind Power Co., Ltd. Collateralized money invested KRW 3,730 Kookmin Bank and others
Korea East-West Power Co., Ltd. Yeonggwang Wind Power Co., Ltd. Collateralized money invested KRW 26,146 KDB Capital Corporation and others
Korea East-West Power Co., Ltd. Daesan Green Energy Co., Ltd. Collateralized money invested KRW 25,331 IBK
Guarantees for supplemental funding (*1)
Korea East-West Power Co., Ltd. Taebaek Gadeoksan Wind Power Co., Ltd. Collateralized money invested KRW 22,908 Hana Bank and others
Korea East-West Power Co., Ltd. PT. Tanjung Power Indonesia Other guarantees USD 3,150 PT. Adaro Indonesia
Guarantees for supplemental funding (*1) Sumitomo mitsui banking and others
Collateralized money invested KRW 100,579 MUFG and others
Korea East-West Power Co., Ltd. South Jamaica Power Company Limited Performance guarantees (*14) USD 14,400 Hana Bank
Collateralized money invested KRW 48,761 JCSD Trustee Services Limited and others
Korea East-West Power Co., Ltd. Bitsolar Energy Co., Ltd. Collateralized money invested Mirae Asset Life Insurance Co. Ltd. and others
Korea East-West Power Co., Ltd. Cheongju Eco Park Co., Ltd. Collateralized money invested KRW 10,636 Kyobo Life Insurance Co., Ltd. and others
Korea East-West Power Co., Ltd. Busan Industrial Solar Power Co., Ltd. Collateralized money invested KRW 1,160 Shinhan Bank and others

227

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(7) Guarantees provided to the related parties as of December 31, 2024 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Primary guarantor Principal obligor Type of guarantees Credit limit Creditor
Korea East-West Power Co., Ltd. Yangyang Wind Power Co., Ltd. Collateralized money invested KRW 11,640 Hana Bank and others
Guarantees for supplemental funding (*1)
Korea East-West Power Co., Ltd. KPE Green Energy Co., Ltd. Collateralized money invested KRW 8,230 Hana Bank and others
Korea East-West Power Co., Ltd. Goheung New Energy Co., Ltd. Collateralized money invested KRW 4,818 Woori Bank and others
Korea East-West Power Co., Ltd. Seungmun Green Energy Collateralized money invested KRW 12,745 Hana Bank and others
Korea East-West Power Co., Ltd. Yanggu Floating Photovoltaic Power Plant Inc. Collateralized money invested KRW 846 Korea Development Bank
Korea East-West Power Co., Ltd. Hoenggye Renewable Energy Co., Ltd. Collateralized money invested KRW 2,375 IBK
Guarantees for supplemental funding (*1)
Korea East-West Power Co., Ltd. Kumyang Eco Park Co., Ltd. Collateralized money invested KRW 3,841 Woori Bank and others
Guarantees for supplemental funding (*1)
Korea East-West Power Co., Ltd. Amaala Sustaninable Company for Energy LLC Loan payment guarantee (*7) USD 38,054 FAB
Collateralized money invested KRW 18
Guarantees for supplemental funding (*1)
Korea Southern Power Co., Ltd. Daeryun Power Co., Ltd. Collateralized money invested KRW 31,093 Korea Development Bank and others
Korea Southern Power Co., Ltd. Daegu Green Power Co., Ltd. Collateralized money invested KRW 30,513 Shinhan Bank and others
Performance guarantees
Korea Southern Power Co., Ltd. Kelar S.A. Performance guarantees USD 30,030 Hana Bank, MUFG
Payment guarantees (*12) USD 11,707 Hana Bank
Korea Southern Power Co., Ltd. Daehan Wind Power PSC Performance guarantees USD 1,800 Shinhan Bank
Payment guarantees (*6) USD 2,000 Hana Bank
Collateralized money invested KRW 21,328 Standard Chartered
Korea Southern Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Collateralized money invested KRW 12,147 Woori Bank, Shinhan Bank and others
Performance guarantees
Korea Southern Power Co., Ltd. Taebaek Guinemi Wind Power Co., Ltd. Collateralized money invested KRW 13,559 IBK
Korea Southern Power Co., Ltd. Samcheok Eco Materials Co., Ltd. Payment guarantees (*2) KIS SF the 22nd Co., Ltd.
Performance guarantees (*15) HC elementary materials
Korea Southern Power Co., Ltd. Solaseado Solar Power Co., Ltd. Collateralized money invested KRW 16,979 Kookmin Bank and others
Korea Southern Power Co., Ltd. Naepo Green Energy Co., Ltd. Collateralized money invested KRW 48,031 IBK and others
Performance guarantees and guarantees for supplemental funding (*1) KRW 30,000
Korea Southern Power Co., Ltd. Omisan Wind Power Co., Ltd. Collateralized money invested KRW 10,859 Shinhan Bank and others
Performance guarantees and guarantees for supplemental funding (*1)
Korea Southern Power Co., Ltd. Geumsungsan Wind Power Co., Ltd. Collateralized money invested KRW 7,839 Kookmin Bank and others
Korea Southern Power Co., Ltd. HORANG ENERGY Inc. Collateralized money invested KRW 3,808 Woori Bank and others
Guarantees for supplemental funding (*1)
Korea Southern Power Co., Ltd. Haman Green Energy Co., Ltd. Collateralized money invested KRW 2,810 Hana Bank and others
Guarantees for supplemental funding (*1)
Korea Southern Power Co., Ltd. Jeongeup Green Power Co., Ltd. Collateralized money invested KRW 8,847 Mirae Asset Securities Co., Ltd.
Guarantees for supplemental funding (*1)
Korea Southern Power Co., Ltd. HyChangwon Fuel Cell. Co., Ltd. Collateralized money invested KRW 9,277 Woori Bank and others
Guarantees for supplemental funding (*1)
Korea Southern Power Co., Ltd. Roof One Energy Co., Ltd. Collateralized money invested KRW 2,000 Woori Bank
Guarantees for supplemental funding (*1)
KOSPO Power Services Ltda. Kelar S.A. Performance guarantees USD 1,316 Scotia bank
KOSPO Chile SpA Kelar S.A. Collateralized money invested KRW 152,366 Export-Import Bank of Korea and others
KOSPO Chile SpA Chester Solar I SpA Collateralized money invested KRW 1,649 IBK
KOSPO Chile SpA Chester Solar IV SpA Collateralized money invested KRW 1,452 IBK
KOSPO Chile SpA Chester Solar V SpA Collateralized money invested KRW 262 IBK
KOSPO Chile SpA Diego de Almagro Solar SpA Collateralized money invested KRW 1,700 IBK
KOSPO Chile SpA Laurel SpA Collateralized money invested KRW 1,432 IBK
Korea Midland Power Co., Ltd. YeongGwang Yaksu Wind Electric Co., Ltd. Collateralized money invested KRW 41 IBK and others
Korea Midland Power Co., Ltd. Hyundai Green Power Co., Ltd. Collateralized money invested KRW 87,392 Korea Development Bank and others
Korea Midland Power Co., Ltd. PT. Cirebon Electric Power Debt guarantees USD 4,510 Mizuho Bank
Korea Midland Power Co., Ltd. PT Wampu Electric Power Debt guarantees USD 4,716 PT. Bank KB Bukopin
Korea Midland Power Co., Ltd. PT. Cirebon Energi Prasarana Debt guarantees USD 9,290 Mizuho Bank
Korea Midland Power Co., Ltd. Green Energy Electricity Generation Co., Ltd. Collateralized money invested IBK
Guarantees for supplemental funding (*1)
Korea Midland Power Co., Ltd. Yaksu ESS Co., Ltd. Collateralized money invested KRW 163 IBK
Korea Midland Power Co., Ltd. Gwangbaek Solar Power Investment Co., Ltd. Collateralized money invested KRW 5,155 Kyobo Life Insurance Co., Ltd. and others
Korea Midland Power Co., Ltd. Muan Sunshine Solar Power Plant Co., Ltd. Collateralized money invested KRW 2,772 IBK
Korea Midland Power Co., Ltd. Goesan Solar park Co., Ltd. Collateralized money invested KRW 3,133 IBK

228

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(7) Guarantees provided to the related parties as of December 31, 2024 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Primary guarantor Principal obligor Type of guarantees Credit limit Creditor
Korea Midland Power Co., Ltd. Bitgoel Eco Energy Co., Ltd. Collateralized money invested KRW 8,035 IBK and others
Guarantees for supplemental funding (*1)
Korea Midland Power Co., Ltd. Energyco Co., Ltd. Collateralized money invested KRW 2,322 Nonghyup Bank
Korea Midland Power Co., Ltd. Jeju Gimnyeong Wind Power Co., Ltd. Collateralized money invested KRW 250 Nonghyup Bank
Korea Midland Power Co., Ltd. Dongbu Highway Solar Co., Ltd. Collateralized money invested KRW 512 Shinhan Bank
Korea Midland Power Co., Ltd. Seobu Highway Solar Co., Ltd. Collateralized money invested KRW 579 Shinhan Bank
Korea Midland Power Co., Ltd. Yeongyang Wind Power Corporation II Collateralized money invested KRW 11,302 Korea Development Bank and others
Korea Midland Power Co., Ltd. Haeparang Energy Co., Ltd. Collateralized money invested KRW 1,950 Templeton Hana Asset
Guarantees for supplemental funding (*1) Management Co., Ltd.
Korea Midland Power Co., Ltd. Saemangeum Sebit Power Plant Co., Ltd. Collateralized money invested KRW 27,702 IBK and others
Korea Midland Power Co., Ltd. Yeomsubong Wind Power Co., Ltd. Collateralized money invested KRW 603 Korea Development Bank
Guarantees for supplemental funding (*1)
Korea South-East Power Co., Ltd. Boim Combined Heat and Power Generation Co., Ltd. Collateralized money invested (*3) IBK
Guarantees for supplemental funding and others (*1,4) KRW 76,800 NH Investment & Securities Co., Ltd. and others
Korea South-East Power Co., Ltd. RES Technology AD Collateralized money invested KRW 15,069 UniCredit Bulbank and others
Korea South-East Power Co., Ltd. ASM-BG Investicii AD Collateralized money invested KRW 16,936 UniCredit Bulbank and others
Korea South-East Power Co., Ltd. Goseong Green Power Co., Ltd. Collateralized money invested KRW 284,543 Kyobo Life Insurance Co., Ltd. and others
Korea South-East Power Co., Ltd. Gangneung Eco Power Co., Ltd. Collateralized money invested KRW 241,814 Kyobo Life Insurance Co., Ltd. and others
Korea South-East Power Co., Ltd. PND Solar Co., Ltd. Collateralized money invested KRW 1,736 IBK
Korea South-East Power Co., Ltd. Hyundai Eco Energy Co., Ltd. Collateralized money invested KRW 8,493 Samsung Life Insurance and others
Korea South-East Power Co., Ltd. Jaeun Resident Wind Power Plant Co., Ltd. Collateralized money invested KRW 2,045 IBK
Korea South-East Power Co., Ltd. Chungsongmeon BongSan wind power Co., Ltd. Collateralized money invested KRW 2,590 Kyobo Life Insurance Co., Ltd. and others
Korea South-East Power Co., Ltd. Yeongam Solar Power Co., Ltd. Collateralized money invested KRW 11,828 Kookmin Bank and others
Korea South-East Power Co., Ltd. Samsu Wind Power Co., Ltd. Collateralized money invested KRW 2,851 Shinhan Bank and others
Korea South-East Power Co., Ltd. Saemangeum Heemang Photovoltaic Co., Ltd. Collateralized money invested KRW 16,137 Woori Bank and others
Korea South-East Power Co., Ltd. Nepal Water & Energy Development Company Private Limited Collateralized money invested USD 97,105 International Finance
Business reserve payment guarantee USD 33,333 Corporation and others
Korea South-East Power Co., Ltd. Santiago Solar Power SpA Debt guarantees (*8) USD 8,000 Nonghyup Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Noeul Green Energy Co., Ltd. Collateralized money invested Hana Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Busan Green Energy Co., Ltd. Collateralized money invested KRW 2,334 Shinhan Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Go deok Clean Energy Co., Ltd. Collateralized money invested KRW 5,301 Kookmin Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Cheong-Song Noraesan Wind Power Co., Ltd. Collateralized money invested KRW 4,316 Woori Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Gwangyang Green Energy Co., Ltd. Collateralized money invested KRW 24,217 Shinhan Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Gangneung Sacheon Fuel Cell Co., Ltd. Collateralized money invested KRW 9,306 Hana Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Chuncheon Green Energy Co., Ltd. Collateralized money invested KRW 17,672 Hana Bank and others
Guarantees for supplemental funding (*1)

229

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(7) Guarantees provided to the related parties as of December 31, 2024 are as follows, continued:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Primary guarantor Principal obligor Type of guarantees Credit limit Creditor
Korea Hydro & Nuclear Power Co., Ltd. Yangyang Suri Wind Power Co., Ltd. Collateralized money invested KRW 8,643 Kookmin Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Bigeum Resident Photovoltaic Power Co., Ltd. Collateralized money invested KRW 7,908 Kookmin Bank and others
Korea Hydro & Nuclear Power Co., Ltd. Songsan Green Energy Co., Ltd. Collateralized money invested KRW 7,908 Hana Bank
Korea Hydro & Nuclear Power Co., Ltd. Changwon Nu-ri Energy Co., Ltd. Collateralized money invested KRW 7,658 Hana Bank
Korea Hydro & Nuclear Power Co., Ltd. Imha Floating Photovoltaic Power Plant Inc. Collateralized money invested KRW 6,351 Hana Bank
Korea Hydro & Nuclear Power Co., Ltd. KAS INVESTMENT I LLC Payment guarantees (*13) USD 9,770 WOORI AMERICA BANK
Korea Hydro & Nuclear Power Co., Ltd. KAS INVESTMENT II LLC Payment guarantees (*13) USD 9,730 WOORI AMERICA BANK
(*1) The Group guarantees to provide supplemental funding for business with respect to excessive business expenses<br>or insufficient repayment of borrowings.
--- ---
(*2) Samcheok Eco Materials Co., Ltd., an associate of the Group has issued the hybrid bonds. If the bonds are not<br>repaid by December 8, 2026, the parent company and shareholders except the parent company must purchase the bonds from the acquirer. As of December 31, 2024, derivative liabilities of ~~W~~26,422 million were recognized in<br>relation to this obligation.
--- ---
(*3) The Group recognized an impairment loss on all of the equity securities of Boim Combined Heat and Power<br>Generation Co., Ltd. before the prior year, and the acquisition cost of the securities provided as collateral is ~~W~~47,067 million.
--- ---
(*4) Pursuant to the guarantee agreement, the Group recognized other provisions of ~~W~~11,804 million<br>as the possibility of economic benefit outflow to fulfill the obligation was deemed probable and the amount could be reasonably estimated.
--- ---
(*5) The common stocks of Dongducheon Dream Power Co., Ltd. held by the Group were pledged as collateral.<br>
--- ---
(*6) The Group provided a payment guarantee to Jordan Tafila wind power project for opening L/C for Debt Service<br>Reserve Account (DSRA).
--- ---
(*7) The Group provided EBL payment and EBL hedging guarantee to Amaala Sustainable Company for Energy LLC, an<br>associate of the Group.
--- ---
(*8) The Group has issued a guaranteed letter of credit in the amount of USD 8,000 thousand under the<br>interlender loan agreement with Santiago Solar Power SpA.
--- ---
(*9) The credit limits of guarantees to RE Holiday Holdings LLC include the credit limits of guarantees to their<br>subsidiaries.
--- ---
(*10) The Group, together with other shareholders, has provided a guarantee for the project financing of Pulau Indah<br>Power Plant Sdn. Bhd., by establishing the right of pledge on the shares of Pulau Indah Power Plant Sdn. Bhd. As of December 31, 2024, the book value of the securities is ~~W~~50,721 million.
--- ---
(*11) Xe-Pian Xe-Namnoy Power Co., Ltd., an associate of the Group, has entered a contract to pay an incentive type<br>of impounding bonus to SK Eco Plant Co., Ltd. when the Xe-Pian Xe-Namnoy Dam is completed. If Xe-Pian Xe-Namnoy Power Co., Ltd. fails to pay SK Eco Plant Co., Ltd., the Group guarantees the payment, and the amount is USD 5,000 thousand.<br>
--- ---
(*12) The Group provided a payment guarantee to Chile Kelar project for opening L/C for Debt Service Reserve Account<br>(DSRA), and others.
--- ---
(*13) The credit limits of guarantees to KAS INVESTMENT I LLC, KAS INVESTMENT II LLC include the credit limits of<br>guarantees to their subsidiaries.
--- ---
(*14) The payment guarantee related to the gas combined cycle power project of South Jamaica Power Company Limited, a<br>joint venture of the Group.
--- ---
(*15) The Group has entered into an agreement prescribing the settlement of the estimated loss in case damages occur<br>related to the fulfillment of the mandatory supply volume according to the mandatory supply agreement for coal ash.
--- ---

230

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(8) Guarantees received from the related parties as of December 31, 2024 are as follows:
--- ---
In millions of won
--- --- --- ---
Primary Guarantor Type of guarantees Credit limit
KAPES, Inc. Defect guarantees ~~W~~ 16,281
Performance guarantees 38,231
Advance payment guarantee 248,042
Certification of bidding 79,818
(9) Derivatives transactions with the related parties as of December 31, 2024 are as follows:
--- ---

(i) Currency Swap

In millions of won and thousands of foreign currencies except contract exchange rate information
Counterparty Contract year Contract amounts Contract interest rate<br>per annum Contractexchangerate (in won)
Pay Receive Receive
Korea Development Bank 2020~2025 ~~W~~ 241,320 200,000 0.54 % 1.13 % ~~W~~ 1,206.60
2021~2026 118,170 100,000 1.11 % 1.13 % 1,181.70
2022~2026 283,820 200,000 4.67 % 5.38 % 1,419.10
2022~2028 283,820 200,000 5.12 % 5.50 % 1,419.10
2023~2026 256,000 200,000 4.04 % 5.38 % 1,280.00
2024~2027 864,890 650,000 3.53 % 4.88 % 1,330.60
2015~2025 111,190 100,000 2.62 % 3.25 % 1,111.90
2017~2027 111,610 100,000 2.31 % 3.13 % 1,116.10
2018~2028 108,600 HKD 800,000 2.69 % 3.35 % 135.75
2019~2027 119,978 CHF 100,000 1.43 % 0.05 % 1,199.78
2021~2026 111,400 100,000 0.93 % 1.25 % 1,114.00
2022~2027 262,000 200,000 3.63 % 4.25 % 1,310.00
2024~2028 257,880 200,000 3.80 % 5.00 % 1,289.40
2024~2028 128,940 100,000 3.69 % 5.00 % 1,289.40
2024~2029 138,540 100,000 3.19 % 4.63 % 1,385.40
2020~2026 118,910 100,000 0.61 % 1.00 % 1,189.10
2021~2026 114,230 100,000 1.27 % 1.25 % 1,142.30
2022~2027 123,710 100,000 3.41 % 3.63 % 1,237.10
2022~2025 128,560 100,000 3.37 % 4.13 % 1,285.60
2020~2025 122,780 100,000 0.93 % 1.75 % 1,227.80
2022~2025 252,360 200,000 2.83 % 3.60 % 1,261.80
2023~2028 129,500 100,000 3.85 % 4.88 % 1,295.00

All values are in US Dollars.

231

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

47. Related Parties, Continued
(9) Derivatives transactions with the related parties as of December 31, 2024 are as follows, continued:
--- ---

(ii) Currency forward

In millions of won and thousands of foreign currencies
Counterparty Contractdate Maturitydate Contract amounts
Pay Receive
Korea Development 2024.12.16 2025.01.07 ~~W~~ 27,247 19,000 1,434,04
Bank 2024.12.30 2025.01.17 17,627 12,000 1,468.95

All values are in US Dollars.

(10) The Group considers all standing directors of the Board who serve as executive officers responsible forplanning, operations and/or control of business activities, as key management personnel. The Group recorded salaries and other compensations related to the key management personnel as follows:
In millions of won
--- --- --- --- ---
Type For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
Salaries ~~W~~ 1,064 866
Retirement benefits 36 33
~~W~~ 1,100 899

232

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

48. Statement of Cash Flows
(1) Significant non-cash transactions for each of the two years in the period ended December 31, 2024 areas follows:
--- ---
In millions of won
--- --- --- --- --- ---
Transactions For the year endedDecember 31, 2024 For the year endedDecember 31, 2023
Transfer from construction-in-progress to other assets ~~W~~ 15,059,467 10,090,726
Recognition of asset retirement cost and related provision for decommissioning costs 1,821,415 (292,120 )
Transfer from provision for disposal of used nuclear fuel to accrued expenses 463,388 379,011
Transfer from long-term borrowings to current portion of long-term borrowings 8,417,793 5,779,487
Transfer from debt securities to current portion of debt securities 26,901,367 24,674,525
Transfer from inventory to stored nuclear fuel 1,002,036 827,279
Recognition of right-of-use assets and others 132,495 261,862
(2) Changes in liabilities incurred from financing activities for each of the two years in the period endedDecember 31, 2024 are as follows:
--- ---
In millions of won For the year ended December 31, 2024
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Non-cash changes
Beginningbalance Cash flows Increase Effect ofexchange rate<br>fluctuationsand others Ending<br>balance
Borrowings ~~W~~ 19,839,652 604,841 214,888 20,659,381
Debt securities 113,792,178 (4,211,164 ) 2,293,005 111,874,019
Lease liabilities 3,807,880 (612,828 ) 119,161 385,243 3,699,456
Derivative liabilities (assets), net (554,147 ) 545,483 (2,397,674 ) (2,406,338 )
~~W~~ 136,885,563 (3,673,668 ) 119,161 495,462 133,826,518
In millions of won For the year ended December 31, 2023
Non-cash changes
Beginningbalance Cash flows Increase Effect ofexchange rate<br>fluctuationsand others Endingbalance
Borrowings ~~W~~ 15,420,176 4,406,382 13,094 19,839,652
Debt securities 105,185,189 8,286,542 320,447 113,792,178
Lease liabilities 4,163,143 (574,239 ) 253,495 (34,519 ) 3,807,880
Derivative liabilities (assets), net (591,471 ) 332,263 (294,939 ) (554,147 )
~~W~~ 124,177,037 12,450,948 253,495 4,083 136,885,563

233

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

49. Commitments for Expenditure
(1) The commitments for acquisition of property, plant and equipment as of December 31, 2024 and 2023 areas follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Contracts Commitmentamounts Remaining<br>liability balances Commitmentamounts Remaining liabilitybalances
Purchase of cable (PVC, 1C, 2000SQ) 153,000M and others (Shin-Bupyung-Youngseo) ~~W~~ 57,226 417 57,226 417
Purchase of cable (PVC, 1C, 2500SQ) 103,374M and others (Bukdangjin-Shin-Tangjung) 51,796 20,661
Purchase of GIS (362kV, 6300A, 63kA) 23CB – Youngseo S/S 37,168 15,109 37,168 15,109
Purchase of GIS (362kV, 6300A, 63kA) 27CB – Kwangyang S/S 37,744 140 37,744 140
Purchase of cable (PVC, 1C, 2500SQ) 100,548M and others (Kyungin Construction) 58,271 746 58,271 746
Purchase of GIS (362kV, 6300A, 63kA) 25CB – Migeum S/S 35,282 13,476 35,136 20,370
Purchase of cable (PVC, 1C, 2000SQ) 5,862M and others (Baekun-Gwangyanghang) 35,016 703 35,016 703
Purchase of GIS (362kV, 6300A, 63kA) Type 19 – Shinyangsan S/S 32,460 5,635
Purchase of cable (PVC, 1C, 2500SQ) 57,868M and others (Goduk-Seoansung) 40,937 654 40,937 654
Purchase of cable (PVC, 1C, 2000SQ) 87,732M and others (Eulwangboonki) 36,446 1,015 36,446 1,015
Purchase of GIS (362kV,6300A,63kA) Type 18 – Wolsung S/Y 33,057 16,045 32,090 26,742
System stabilization ESS equipment (Bubuk S/S) Type 1 221,939 42,137 222,300 145,014
System stabilization ESS equipment (Shinnamwon S/S) Type 1 211,500 130,169
System stabilization ESS equipment (Yeongcheon S/S) Type 1 72,779 16,975 73,104 18,604
Concrete pole (10M, general purpose, 500KGF) 111,000 ea and four other equipment 67,996 39,971
Advanced EType low voltage electronic watt-hour meter 1,311,552 ea 36,103
System stabilization ESS equipment (Yesan S/S) Type 1 56,174 11,471 56,403 12,095
System stabilization ESS equipment (Hamyang S/S) Type 1 35,764 11,468 35,609 12,870
Concrete pole (10M, general purpose, 500KGF) 90,000 ea and four other equipment 59,473 36,464
Purchase of cable (PVC, 1C, 2500SQ) 53,856M and others (Shinchungjuboonki) 31,925 7,756
Purchase of GIS (362kV, 6300A, 63kA) Type 31 – East Seoul S/S 39,060 39,060
Purchase of cable (PVC, 1C, 2000SQ) 68,613M and others (Dongducheon-Yangju) 40,933 28,790
Purchase of HVDC cable (PE, 2500SQ) 31,551M and others 40,323 40,323
Purchase of HVDC cable (PE, 2500SQ) 30,883M and others 40,130 40,130
Stationary reactive power compensation device (Phase 3, ±500MVAR) – Shin Jecheon<br>S/S 39,300 39,300
Stationary reactive power compensation device (STATCOM, phase 3, ±500MVAR) – East<br>coast #1C/S 37,600 37,600
AMIGO, 1P2W, 60(5)A, Electronic, Class 1.0, 220V, 1,031,728 EA – Annual Unit Price 43,054 38,404
Stationary reactive power compensation device (STATCOM/Phase 3, ±500MVAR) – Shin<br>Gapyeong S/S 40,590 40,590
Stationary reactive power compensation device (STATCOM/Phase 3, ±500MVAR) – Shin<br>Namwon S/S 37,100 37,100
Construction of Saeul Units (#3,4) 11,718,217 1,748,342 9,800,424 1,113,349
Construction of Shin-Hanul Units (#1,2) (*) 10,765,241 10,592,760
Construction of Shin-Hanul Units (#3,4) 12,343,245 10,964,638 11,680,361 10,935,737
Other 40 contracts 2,033,913 1,744,217 1,631,574 1,133,467
Purchase of main equipment for Jeju LNG Combined 166,287
Purchase of equipment for the construction project of Boryeong indoor coal storage yard 357,479 241,751 334,932 279,920
Purchase of main machine for Boryeong New Complex Unit 1 286,299 177,988 281,600 228,053
Boryeong New Complex Unit 1 Construction Project 202,552 161,753 186,358 186,358
Haman Combined Power Block Conditional Purchase Agreement 581,790 543,509
Service of designing Taean Units (#9,10) 112,909 12,468

234

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

49. Commitments for Expenditure, Continued
(1) The commitments for acquisition of property, plant and equipment as of December 31, 2024 and 2023 areas follows, continued:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Contracts Commitmentamounts Remaining<br>liability balances Commitmentamounts Remaining liabilitybalances
Purchase of gas turbine and turbine equipment of Gimpo combined heat & power<br>plant ~~W~~ 123,495 15,603 123,495 15,603
Purchase of steam turbine, HRSG and POWER BLOCK of Gimpo combined heat & power<br>plant 220,864 101 220,864 214
Construction of Gimpo combined heat & power plant 223,660 8,795 211,372 13,960
Purchase of gas turbines, steam turbines, and accessories for Gumi natural gas power plant 198,029 29,417 197,983 193,578
Purchase of heat recovery boiler and accessories for Gumi natural gas power plant 65,918 12,574 65,918 45,299
Construction of Gumi natural gas power plant 246,110 96,708 210,393 173,350
Installation of natural gas supply facility at Gumi natural gas power plant 83,801 45,019 70,620 61,799
Construction of Gongju natural gas power plant 203,849 190,840
Purchase of natural gas main machine and accessories at Gongju natural gas power plant 305,829 273,338
Purchase of coal handling machine for construction of Samcheok Units (#1,2) 326,395 5,905 312,150 5,682
Purchase of main equipment for Namjeju 140,144 140,144 3
Purchase of main equipment for Shin-Sejong combined thermal power plant 234,392 2,670 234,392 8,342
Purchase of Hadong thermal power indoor carboniferous plant 167,259 167,259 48,495
Purchase of phase 2 power generation facility for Yeongwol fuel cells 88,428 86,350 219
Purchase of fuel cell power generation facilities for the fifth stage of Shinincheon<br>headquarters 82,395 81,960 18,290
Purchase of Samcheok hydrogen compound co-firing facility infrastructure 128,820 90,876
Construction of Andong Combined Unit 2 Power Plant 181,593 175,029
Purchase of main equipment for Andong Combined Unit 2 279,773 230,694
Service of designing Hadong Combined Unit 1 31,593 26,351
(*) As of December 31, 2024, the commitment amounts include the value of Shin-Hanul Unit #1, construction of<br>which was completed during the year ended December 31, 2022. In addition, Shin-Hanul Unit #2 is in commercial operation as of December 31, 2024.
--- ---
(2) As of December 31, 2024, details of contracts for inventory purchase commitment are as follows:
--- ---
Type Periods Contracted quantity
--- --- --- ---
Concentrate 2024 ~ 2033 22,282 Ton U3O8
Conversion 2024 ~ 2030 14,391 Ton U
Enrichment 2024 ~ 2035 26,943 Ton SWU

In addition, the contracted quantity of the molded uranium between Korea Hydro & Nuclear Power Co., Ltd. and KEPCO Nuclear Fuel Co., Ltd., which are subsidiaries of the Group, is 817 Ton U (contract periods: 2023 ~ 2031).

235

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

50. Contingencies and Commitments
(1) Ongoing litigations and arbitrations related with contingent liabilities and contingent assets as ofDecember 31, 2024 and 2023 are as follows:
--- ---
In millions of won As of December 31, 2024 As of December 31, 2023
--- --- --- --- --- --- --- --- ---
Number of cases Amount Number of cases Amount
As the defendant 722 ~~W~~ 884,402 666 ~~W~~ 805,227
As the plaintiff 264 769,772 268 571,593

As of December 31, 2024, there are 3 ongoing litigations and 2 arbitration case between consolidated entities.

1) The Group is the defendant against a number of litigations. The following is ongoing litigation pertaining to<br>the Group which can potentially be significant:

There are multiple ongoing litigations against the Group related to ordinary wages, requesting payment of unpaid wages. The Group believes that the possibility of the outflow of economic benefits is probable on the ongoing and the expected litigations. Accordingly, the Group recognized ~~W~~274,043 million as litigation provisions in relation to the litigation as of December 31, 2024.

2) There are 18 arbitration cases pertaining to the Group as of December 31, 2024 and the significant<br>arbitration cases are as follows:
i) Hitachi Energy Sweden filed an arbitration against the Group regarding the request for additional payment due<br>to the increase in capacity of some facilities and the withdrawal of liquidated damage in relation to Shin Young-ju and Shin Jecheon substation TCSC construction projects. The Group has not recognized any provision because the amount and timing of<br>economic benefit outflow cannot be reasonably estimated as of December 31, 2024.
--- ---
ii) During the year ended December 31, 2024, UniTest Co., Ltd. filed an arbitration claim against KEPCO for delay<br>damages arising from the modification of design and contract amount related to the 154kV Yesan S/S 82MW ESS construction project. The amount and timing of resource outflows resulted therefrom cannot be reasonably estimated.
--- ---
iii) The Group filed an arbitration application with Westinghouse Electric Company LLC to Korean Commercial<br>Arbitration Board, requesting to confirm whether the Group is subject to nuclear power plant export control procedures or not. As of December 31, 2024, the Group has not recognized any provision because the amount and timing of economic benefit<br>outflow cannot be reasonably estimated.
--- ---
iv) Samsung C&T consortium (Samsung C&T Co., Ltd., Doosan Enerbility Co., Ltd., and Hanwha Co., Ltd.) filed<br>an arbitration application against the Group to National Contract Dispute Mediation Committee regarding the adjustment of the contract amount related to the main facility construction of Saeul Units 3 and 4 (formerly, Shin-Kori Nuclear Power Units 5<br>and 6). The Group has not recognized any provision because the amount and timing of economic benefit outflow cannot be reasonably estimated as of December 31, 2024
--- ---

236

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

50. Contingencies and Commitments, Continued
(2) Guarantees of payments and commitments provided to other companies as of December 31, 2024 are asfollows:
--- ---
1) The Group has provided the syndicate of lenders of PT Indo Raya Tenaga, the business corporation of PT Barito<br>Wahana Tenaga, a guarantee by establishing the right of pledge on the shares of PT Barito Wahana Tenaga for project financing of PT Barito Wahana Tenaga as of December 31, 2024.
--- ---
2) The Group has outstanding borrowings with a limit of USD 264,800 thousand from its creditors such as<br>International Finance Corporation. Regarding the borrowing contract, the Group has guaranteed capital contribution of USD 69,808 thousand and additional contribution up to USD 19,000 thousand for contingencies, if any. In relation to this<br>financial agreement, the Group is providing its entire shares in Mira Power Limited and business-related PP&E as collateral to the lenders.
--- ---
3) The Group has provided USD 6,119 thousand for a debt guarantee to Export-Import Bank of Korea, BNP Paribas<br>and ING Bank, to guarantee the payment of debt related to hydroelectric power business of Tanggamus, Indonesia.
--- ---
4) The Group has provided USD 4,716 thousand for a debt guarantee to PT. Bank KB Bukopin, to guarantee the<br>payment of debt related to hydroelectric power business of Wampu, Indonesia.
--- ---
5) The Group has provided RBC Community Investments Impact Renewables HoldCo-1, LLC a performance guarantee<br>regarding weatherization in relation with tax investors up to USD 3,000 thousand for the of the power plant construction for Concho Valley solar power project in the United States.
--- ---
6) The Group has provided EUR 7,031 thousand for a performance guarantee to Microsoft through Kookmin Bank,<br>to guarantee the implementation of the power plant construction for Guba Buget wind power project in Sweden.
--- ---
7) The Group has provided Axia Power Holdings B.V. and others a performance guarantee up to USD<br>54,000 thousand for the implementation of Cirebon thermal power generation project in Indonesia.
--- ---
8) The Group has provided Nonghyup Bank a debt guarantee up to USD 4,510 thousand to guarantee Debt Service<br>Reserve Account (DSRA) for Mizuho bank, related to the Cirebon power plant business of PT. Cirebon Electric Power in Indonesia.
--- ---
9) The Group has provided Nonghyup Bank a debt guarantee up to USD 9,290 thousand to guarantee Debt Service<br>Reserve Account (DSRA) for Mizuho bank, related to the Cirebon power plant business of PT. Cirebon Energi Prasarana in Indonesia.
--- ---
10) The Group has provided PT Perusahaan Listrik Negara a performance guarantee up to IDR 35,588,165 thousand<br>for the implementation of Tanjung Jati power plant operation project in Indonesia.
--- ---
11) The Group has provided USD 30,000 thousand for a performance guarantee to Morgan Stanley Capital Group<br>Inc., to guarantee the electricity purchase contract in relation to photovoltaic power generation project in USA.
--- ---
12) The Group has provided Morgan Stanley Renewables Inc. a guarantee up to USD 70,000 thousand for the<br>fulfillment of subscription obligation regarding photovoltaic power generation project in USA.
--- ---
13) The Group has provided Hana Bank a debt guarantee up to USD 40,000 thousand to guarantee Equity Bridge<br>Loan for Concho Valley solar business in the United States.
--- ---
14) The Group has provided Van Phong Power Company, Ltd. a performance guarantee up to USD 5,000 thousand for<br>the operation maintenance project in Van Phong, Vietnam.
--- ---

237

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

50. Contingencies and Commitments, Continued
(2) Guarantees of payments and commitments provided to other companies as of December 31, 2024 are asfollows, continued:
--- ---
15) The Group has provided RBC Community Investments Impact Renewables HoldCo-1, LLC a guarantee for up to USD<br>62,800 thousand for the fulfillment of subscription obligation regarding Concho Valley solar power project in the United States.
--- ---
16) The Group has provided PT Perusahaan Listrik Negara a performance guarantee up to USD 2,280 thousand for<br>the operation maintenance project in Indonesia siborpa.
--- ---
17) The Group has provided joint guarantee for ~~W~~1,641 million guarantee insurance contracted by<br>Haetbyeotgil Sunlight Co., Ltd.
--- ---

238

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

50. Contingencies and Commitments, Continued
(3) Credit lines provided by financial institutions and others as of December 31, 2024 are as follows:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Commitments Financial institutions Currency Used amount
Commitments on Bank-overdraft Nonghyup Bank and others KRW 1,720,500 119,643
Limit amount available for CP Hana Bank and others KRW 7,550,000 7,550,000
General Loan, etc. Kookmin Bank and others KRW 3,930,000 3,900,000
Limit amount available for card Hana Bank and others KRW 47,524 4,006
Loan limit Korea Development Bank and others KRW 3,248,025 1,837,454
DBS Bank and others 1,086,000
Certification of payment on payables from foreign country Nonghyup Bank 8,700 4,020
Certification of payment on L/C Shinhan Bank and others 1,235,937 183,357
Kookmin Bank and others 32,035 13,424
Shinhan Bank 715,837
Certification of Performance guarantee on contract Hana Bank and others KRW 160,815 150,648
First Abu Dhabi Bank and others 1,008,252 950,774
Korea Development Bank and others 620,000 620,000
Hana Bank 12,106 12,106
Hana Bank 67,944 67,944
Hana Bank OMR 6,250 6,250
First Abu Dhabi Bank and others AED 52,500 52,500
Saudi National Bank and others SAR 124,151 123,829
Certification of bidding Korea Software Financial Cooperative KRW 43,809 43,809
Hana Bank and others 10,200 5,000
Export-Import Bank of Korea 10,000 10,000
Shinhan Bank QAR 155,213 155,213
Advance payment bond, Warranty bond, Retention bond and others Seoul Guarantee Insurance KRW 83,161 83,161
Hana Bank and others 702,487 664,191
Saudi National Bank SAR 32,500 32,500
Hana Bank and others MXN 21,290 21,290
Others (*) Nonghyup Bank and others KRW 314,892 56,858
Nonghyup Bank and others 448,635 USD 228,813
EUR 51,784
StandardChartered AED 50 50
Kookmin Bank 7,031 7,031
Secured loan of credit sales Nonghyup Bank and others KRW 270,000
Inclusive credit Hana Bank KRW 8,000 3,735
Hana Bank and others 35,000 USD 9,362
INR 332,690
AED 319
Equity Bridge Loan Guarantee Export-Import Bank of Korea<br> <br>and<br>others 1,764,555 1,376,262
Trade finance DBS Bank and others 850,000

All values are in US Dollars.

(*) As of December 31, 2024, the Group has entered into a credit extension agreement for derivatives<br>transactions with Nonghyup Bank, Hana Bank, and Woori Bank as ancillary to currency swap transactions.

239

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

50. Contingencies and Commitments, Continued
(4) As of December 31, 2024, promissory notes and assets provided as collaterals or pledges to financialinstitutions by the Group are follows:
--- ---
In millions of won and thousands of foreign currencies
--- --- --- --- --- ---
Obligor Creditor Assets provided as security Currency Description
Mira Power Limited International Finance Corporation and others Property, plant and Equipment and others 264,800 Collateral for borrowings (*1)
Tamra Offshore Wind Power Co., Ltd. Kyobo Life Insurance Co., Ltd. and others Property, plant and equipment and others KRW 171,600 Collateral for borrowings (*1)
Gyeonggi Green Energy Co., Ltd. Korea Development Bank and others Cash and cash equivalents and others KRW 327,080 Collateral for borrowings (*2)
Commerce and Industry Energy Co., Ltd. IBK and others Property, plant and equipment and others KRW 110,500 Collateral for borrowings (*2)
Jeongam Wind Power Co., Ltd. KDB Capital Corporation and others Cash and cash equivalents and others KRW 230,716 Collateral for borrowings (*2)
Gyeongju Wind Power Co., Ltd. Shinhan Bank and others Property, plant and equipment and others KRW 68,400 Collateral for borrowings (*2)
Korea Offshore Wind Power Co., Ltd. Woori Bank and others Property, plant and equipment and others KRW 159,000 Collateral for borrowings (*1,2)
Qatrana Electric Power Company The Islamic Development Bank and others Finance lease receivable and property, plant and equipment and others JOD 136,623 Collateral for borrowings (*1)
KST Electric Power Company, S.A.P.I. de C.V. Export–Import Bank of Korea and others Finance lease receivable and property, plant and equipment and others 401,277 Collateral for debt securities (*1)
Incheon Fuel Cell Co., Ltd. Kookmin Bank and others Cash and cash equivalents and others KRW 276,960 Collateral for borrowings (*2)
K-SOLAR SHINAN Co., Ltd. Kyobo Life Insurance Co., Ltd. and others Property, plant and equipment and others KRW 329,736 Collateral for borrowings (*1)
KOSPO Youngnam Power Co., Ltd. Shinhan Bank and others Cash and cash equivalents and others KRW 744,120 Collateral for borrowings (*2)
Jeju Hanlim Offshore Wind Co., Ltd. Kookmin Bank and others Property, plant and equipment and others KRW 11,932 Collateral for borrowings (*2)
Western Power Changgi Solar Co., Ltd. Samsung Life Insurance and others Property, plant and equipment and others KRW 54,000 Collateral for borrowings (*2)
Yeongdeok Sunrise Wind Power Co., Ltd. Korea Development Bank and others Property, plant and equipment and others KRW 96,240 Collateral for borrowings (*2)
J Wind First, LLC Woori Bank Trade receivable and others KRW 55,000 Collateral for borrowings (*1,2)
Chitose Solar Power Plant LLC Korea Development Bank Property, plant and equipment and others 137,656 Collateral for borrowings (*1,2)
Mangilao Intermediate Holdings LLC Mizuho Bank Trade receivable and others 86,132 Collateral for borrowings (*2)

All values are in US Dollars.

(*1) This is based on the amount of loan commitment limit.
(*2) As of December 31, 2024, the Group has established guarantees for pledge for transfer of rights of<br>long-term borrowings, pledge for insurance claims, pledge for shares, etc.
--- ---

The Group has ~~W~~1,197 million of project loans from the Korea Energy Agency as of December 31, 2024. The Group has provided a promissory note as a repayment guarantee.

240

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

50. Contingencies and Commitments, Continued
(5) The Group temporarily suspended operations of the Gangneung hydroelectric generating plant, with a<br>carrying amount of ~~W~~59,313 million as of December 31, 2024, to improve the quality of water used in generating electricity. The expenses related to the suspension of operations of ~~W~~1,741 million and<br>depreciation on the idle assets of ~~W~~3,642 million are recorded in other expenses for the year ended December 31, 2024. Regarding the improvement of water quality, the results of damages compensation for the local residents<br>cannot be reasonably estimated, and the Group is in negotiations with Gangneung City and related stakeholders to restart the Gangneung hydroelectric generating plant as of December 31, 2024.
--- ---
(6) As the government of the Republic of Korea announced the suspension of operation in Gaeseong Industrial<br>District, it is uncertain if the Group can exercise the property rights for the Group’s facility in Gaeseong Industrial District as of December 31, 2024. Accordingly, the book value of the facility, amounting to ~~W~~11,778<br>million, was recognized as an impairment loss, and trade receivables related to companies residing in the Gaeseong Industrial District were fully written off. As of December 31, 2024, the Group cannot make reasonable estimation on whether<br>assets will be recovered or utilized in regular way related thereto.
--- ---
(7) As of December 31, 2024, the Group owns land at 6171-1 Nuri-ri, Yeongi-myeon, Sejong Special<br>Self-Governing City as PP&E with limited ownership, and its book value is ~~W~~64,371 million.
--- ---
(8) The Korea Institute of Energy Technology(KENTECH) was established in April, 2020, in accordance with the<br>“Basic plan for the establishment of KENTECH (July, 2019)”. By the special law to create KENTECH, the Group, government, and local government may contribute to the fund. The Group will decide whether to contribute to the fund on a board<br>resolution after consulting with relevant organizations considering its financial situation by year.
--- ---
(9) The ongoing armed conflict in Ukraine started in February 2022 and relevant sanctions against Russia imposed by<br>the international community can impact not only sanctioned entities but also the entities doing business directly or indirectly with Ukraine or Russia and the entities exposed directly or indirectly to industries or economy of Russia or Ukraine. The<br>Group cannot make reasonable estimation of the financial impact of the recent conflict in Ukraine on the future events.
--- ---

241

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

51. Subsequent Events
(1) Subsequent to December 31, 2024, KEPCO borrowed long-term borrowings for the purposes of operation<br>funding and details related thereto are as follows:
--- ---
In millions of won
--- --- --- --- --- --- --- --- --- ---
Company Type Issue date Maturity Interest rate (%) Amount
Korea Electric Power Corporation Local long-term borrowings<br>(Mid- to long-term CP (*)) 2025.02.11 2030.02.11 3M CD+0.57 ~~W~~ 200,000
Local long-term borrowings<br>(Mid- to long-term CP (*)) 2025.02.27 2030.02.27 3M CD+0.62 200,000
(*) The maturity of mid- to long-term CPs corresponds to contract period of commercial paper repurchase agreements.<br>
--- ---
(2) Subsequent to December 31, 2024, KEPCO and its subsidiaries Korea Hydro & Nuclear Power<br>Co., Ltd., Korea South-East Power Co., Ltd., Korea Western Power Co., Ltd., Korea Southern Power Co., Ltd. and Korea East-West Power Co., Ltd. issued bonds denominated in Korean won and foreign currency for the purposes of operation and facility<br>funding and details related thereto are as follows:
--- ---
In millions of won and thousands of
--- --- --- --- --- --- --- --- --- ---
Company Issue date Maturity Interest rate (%) Amount
Korea Electric Power Corporation #1451 Corporate bond 2025.01.06 2027.01.06 2.88 ~~W~~ 200,000
#1452 Corporate bond 2025.01.06 2028.01.06 2.86 200,000
#1453 Corporate bond 2025.01.06 2030.01.06 2.99 100,000
#1454 Corporate bond 2025.01.14 2027.01.14 2.87 200,000
#1455 Corporate bond 2025.01.14 2028.01.14 2.92 200,000
#1456 Corporate bond 2025.01.14 2030.01.14 3.03 100,000
#1457 Corporate bond 2025.01.22 2027.01.22 2.84 200,000
#1458 Corporate bond 2025.01.22 2028.01.22 2.89 200,000
#1459 Corporate bond 2025.01.22 2030.01.22 2.99 100,000
#1460 Corporate bond 2025.02.06 2027.02.06 2.88 190,000
#1461 Corporate bond 2025.02.06 2028.02.06 2.86 300,000
#1462 Corporate bond 2025.02.06 2030.02.06 2.92 210,000
#1463 Corporate bond 2025.02.12 2027.02.12 2.90 300,000
#1464 Corporate bond 2025.02.12 2028.02.12 2.92 200,000
#1465 Corporate bond 2025.02.12 2030.02.12 3.00 200,000
#1466 Corporate bond 2025.02.17 2028.02.17 2.89 200,000
#1467 Corporate bond 2025.02.17 2030.02.17 2.98 100,000
#1468 Corporate bond 2025.02.24 2027.02.24 2.86 300,000
#1469 Corporate bond 2025.02.24 2028.02.24 2.88 300,000
#1470 Corporate bond 2025.02.24 2030.02.24 2.98 100,000
#1471 Corporate bond 2025.03.06 2027.03.05 2.90 200,000
#1472 Corporate bond 2025.03.06 2028.03.06 2.90 200,000
#1473 Corporate bond 2025.03.06 2030.03.06 2.97 100,000
FY25 Global 16th 2025.02.13 2028.02.13 4.75 USD 400,000

All values are in US Dollars.

242

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

51. Subsequent Events, Continued
(2) Subsequent to December 31, 2024, KEPCO and its subsidiaries Korea Hydro & Nuclear Power<br>Co., Ltd., Korea South-East Power Co., Ltd., Korea Western Power Co., Ltd., Korea Southern Power Co., Ltd. and Korea East-West Power Co., Ltd. issued bonds denominated in Korean won and foreign currency for the purposes of operation and facility<br>funding and details related thereto are as follows, continued:
--- ---
In millions of won, thousands of and thousands of HKD
--- --- --- --- --- --- --- --- --- ---
Company Issue date Maturity Interest rate (%) Amount
Korea Hydro & Nuclear Power Co., Ltd. #81 Corporate bond 2025.02.10 2030.02.10 2.96 60,000
#4 Foreign currency<br>private placement<br>bond 2025.03.05 2028.03.05 4.10 HKD 1,166,000
Korea South-East Power Co., Ltd. #63-1 Corporate bond 2025.01.24 2027.01.22 2.82 140,000
#63-2 Corporate bond 2025.01.24 2028.01.24 2.85 110,000
#63-3 Corporate bond 2025.01.24 2030.01.24 2.95 40,000
#64-1 Corporate bond 2025.02.18 2027.02.18 2.87 70,000
#64-2 Corporate bond 2025.02.18 2028.02.18 2.88 60,000
Korea Western Power Co., Ltd. #64-1 Corporate bond 2025.02.13 2027.02.12 2.89 140,000
#64-2 Corporate bond 2025.02.13 2028.02.11 2.93 100,000
#64-3 Corporate bond 2025.02.13 2030.02.13 3.04 20,000
Korea Southern Power Co., Ltd. #77-1 Corporate bond 2025.01.21 2028.01.21 2.91 60,000
Korea East-West Power Co., Ltd. #49-1 Corporate bond 2025.03.07 2027.03.05 2.86 170,000
#49-2 Corporate bond 2025.03.07 2028.03.07 2.89 60,000
#49-3 Corporate bond 2025.03.07 2030.03.07 2.99 40,000

All values are in US Dollars.

243

Table of Contents

KOREA ELECTRIC POWER CORPORATION AND ITS SUBSIDIARIES

Notes to the consolidated financial statements, Continued

December 31, 2024 and 2023

52. Adjusted Operating Profit (Loss)

The operating profit (loss) in the Group’s consolidated statements of comprehensive income or loss prepared in accordance with KIFRS included in this report differs from that in its consolidated statements of comprehensive income or loss prepared in accordance with IFRS as issued by IASB. The table below sets forth a reconciliation of the Group’s results from operating activities as presented in the Group’s interim consolidated statements of comprehensive income or loss prepared in accordance with KIFRS for each of the two years in the period ended December 31, 2024 to the operating profit or loss as presented in the Group’s interim consolidated statements of comprehensive income or loss prepared in accordance with IFRS as issued by IASB for each of the corresponding periods.

In millions of won For the year ended<br>December 31, 2024 For the year ended<br>December 31, 2023
Operating loss on the consolidated statements of comprehensive income (loss) ~~W~~ 8,364,710 (4,541,648 )
Add
Other income
Reversal of other provisions 35,317 79,001
Reversal of other allowance for bad debt 17,699 1,941
Gains on government grants 4,789 239
Gains on assets contributed 29,968 24,183
Gains on liabilities exempted 504 854
Compensation and reparations revenue 84,682 93,785
Revenue from foundation fund 58 60
Rental income 204,277 210,972
Others 100,060 121,816
Other gains
Gains on disposal of property, plant and equipment 85,990 32,196
Gains on disposal of intangible assets 41 136
Reversal of impairment losses on other current assets - 16,035
Gains on foreign currency translation 77,269 27,123
Gains on foreign currency transactions 74,520 139,077
Gains on insurance proceeds 3,411 6,785
Others 273,745 346,795
Deduct
Other expenses
Compensation and indemnification expense (234 ) (34 )
Accretion expenses of other provisions (5,841 ) (4,962 )
Depreciation expenses on investment properties (682 ) (493 )
Depreciation expenses on idle assets (3,642 ) (3,683 )
Other bad debt expense (42,776 ) (40,683 )
Donations (324,694 ) (169,748 )
Others (87,819 ) (39,302 )
Other losses
Losses on disposal of property, plant and equipment (112,018 ) (98,120 )
Losses on disposal of intangible assets (111 ) (71 )
Losses on impairment of property, plant and equipment (11,240 ) (17,031 )
Losses on impairment of intangible assets (902 ) (2,865 )
Losses on foreign currency translation (29,225 ) (3,901 )
Losses on foreign currency transactions (148,381 ) (165,187 )
Others (128,215 ) (258,286 )
Adjusted operating gain (loss) ~~W~~ 8,461,260 (4,245,016 )

244