6-K

KT CORP (KT)

6-K 2024-03-19 For: 2024-03-19
View Original
Added on April 07, 2026

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OFFOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR15d-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2024

Commission File Number 1-14926

KT Corporation

(Translation of registrant’s name into English)

90, Buljeong-ro,

Bundang-gu,Seongnam-si,

Gyeonggi-do,

Korea

(Address ofprincipal 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 ☐

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.

Dated: March 19, 2024
KT Corporation
By: /s/ Youngkyoon Yun
Name: Youngkyoon Yun
Title: Vice President
By: /s/ Sanghyun Cho
Name: Sanghyun Cho
Title: Director

KT Corporation and Subsidiaries

Consolidated Financial Statements

December 31,2023 and 2022

KT Corporation

Index

December 31, 2023 and 2022

Page(s)
Independent Auditor’s Report 1– 4
Consolidated Financial Statements
Consolidated Statements of Financial Position 5 – 6
Consolidated Statements of Profit or Loss 7
Consolidated Statements of Comprehensive Income 8
Consolidated Statements of Changes in Equity 9 – 10
Consolidated Statements of Cash Flows 11 – 12
Notes to the Consolidated Financial Statements 13 – 133
Independent Auditor’s Report on Internal Control over Financial Reporting **** 134 – 135
Report on the Effectiveness of Internal Control over FinancialReporting **** 136
Deloitte Anjin LLC<br> <br>9F., One IFC,<br><br><br>10, Gukjegeumyung-ro,<br> <br>Youngdeungpo-gu, Seoul<br><br><br>07326, Korea<br> <br><br><br><br>Tel: +82 (2) 6676 1000<br> <br>Fax: +82 (2) 6674 2114<br><br><br>www.deloitteanjin.co.kr
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INDEPENDENT AUDITOR’S REPORT

English Translation of Independent Auditor’s Report Originally Issued in Korean on March 18, 2024

To the Shareholders and the Board of Directors of KT Corporation:

Audit Opinion

We have audited the consolidated financial statements of KT Corporation and its subsidiaries (the “Group”), which comprise the consolidated statement of financial position as of December 31, 2023, and the consolidated statement of profit or loss, the consolidated statement of comprehensive income, consolidated statement of changes in shareholders’ equity and consolidated statement of cash flows, for the year then ended, and 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 financial position of the Group as of December 31, 2023, and its financial performance and its cash flows for the year then ended in accordance with Korean International Financial Reporting Standards (“K-IFRS”).

We have also audited, in accordance with the Korean Standards on Auditing (“KSAs”), the consolidated internal control over financial reporting of the Group as of December 31, 2023, based on the Conceptual Framework for Design and Operation of Internal Control over Financial Reporting, and our report dated March 18, 2024 expressed an unqualified opinion.

Basis for Audit Opinion

We conducted our audits in accordance with the KSAs. 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 audit opinion.

Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee (“DTTL”), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as “Deloitte Global”) does not provide services to clients. Please see www.deloitte.com/kr/about to learn more about our global network of member firms.

Deloitte Touche Tohmatsu Limited is a private company limited by guarantee incorporated in England & Wales under company number 07271800, and its registered office is Hill House, 1 Little New Street, London, EC4a, 3TR, United Kingdom.

1

LOGO

Key Audit Matters

The key audit matters are those matters that, in our professional judgment, were of most significance in our audit of the consolidated financial statements of the current period. These matters were 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 these matters.

  • Occurrence and accuracy of Mobile service revenue and revenue related to sale of handset for mobile service (“Mobile revenue”)

(1) Reasons for Determining the matter as a Key Audit Matter

As described in Note 2.26 to the consolidated financial statements, the Group recognizes revenue at the point in time when it fulfills its performance obligations identified from contracts with customers. The Group provides various services and rate plans related to mobile revenue, and due to the large volume of transactions with customers, needs complex and elaborate information technology systems to accurately record occurrence of mobile revenue.

Given the magnitude and complexity of mobile revenue recorded by the billing system of the Group, we determined the occurrence and accuracy of mobile revenue recognized through the billing system as a key audit matter.

(2) How the matter has been addressed in the audit

Key audit procedures performed regarding the occurrence and accuracy of mobile revenue computed through the billing system include the following:

During the audit planning phase, we obtained an understanding of the Group’s accounting policies and<br>processes related to Mobile revenue recognition.
We performed an assessment on the environment of the general information technology systems used for collecting<br>usage of voice, text, and data, as well as handling billing and invoicing throughout the process of recording revenue, and tested manual controls and general information technology controls.
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We reconciled the mobile revenue in the billing system with the revenue in the ledger.
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We performed substantive analytical procedures using historical data on mobile service revenue by rate plan and<br>subscriber information.
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To verify the accuracy and completeness of the subscriber information used in our audit procedures, we selected<br>subscriber information from the billing system, reconciled the selections with contractual terms between the Group and customers, and corroborated if the subscribers were valid for the respective month.
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To verify the occurrence and accuracy of revenue recognition related to sale of handset for mobile service, we<br>selected transactions from the sub-ledger, reconciled the selection with contractual terms between the Group and customers of the Group, and compared the billed amounts to receipts.
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2

LOGO

Responsibilities of Management and Those Charged with Governance for the Consolidated Financial Statements

Management is responsible for the preparation of the accompanying consolidated financial statements in accordance with K-IFRS, and for such internal control as they determine 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 of the Group 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 KSAs 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 KSAs, 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 audit opinion. The risk of not detecting a material misstatement resulting from<br>fraud is 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.
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Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and<br>related disclosures made by management.
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Conclude on the appropriateness of the management’s use of the going concern basis of accounting and, based<br>on 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<br>are 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<br>up to the date of our auditor’s report. However, future events or conditions may cause the Group to cease to continue as a going concern.
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3

LOGO

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 are solely responsible for our audit opinion.
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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.

Other matters

The consolidated financial statements for the reporting period ending December 31, 2022, were audited by other external auditor, and their audit report dated March 8, 2023, expressed an unqualified opinion.

The engagement partner on the audit resulting in this independent auditor’s report is Lee, Dong Hyun.

LOGO

March 18, 2024

Notice to Readers

This report is effective as of March 18, 2024, the auditor’s report date. Certain subsequent events or circumstances may have occurred between the auditor’s report date and the time the auditor’s report is read. Such events or circumstances could significantly affect the consolidated financial statements and may result in modifications to the auditor’s report.

4

KT Corporation and Subsidiaries

Consolidated Statements of Financial Position

Years Ended December 31, 2023 and 2022

(in millions of Korean won) Notes December 31, 2023 December 31, 2022
Assets
Current assets
Cash and cash equivalents 4,5,37 ~~W~~ 2,879,554 ~~W~~ 2,449,062
Trade and other receivables, net 4,6,37 7,170,289 6,098,072
Other financial assets 4,7,37 1,440,200 1,322,452
Current income tax assets 3,299 1,543
Inventories, net 8 912,262 709,191
Other current assets 9 2,112,553 2,101,212
Total current assets 14,518,157 12,681,532
Non-current assets
Trade and other receivables, net 4,6,37 1,404,168 1,491,046
Other financial assets 4,7,37 2,724,761 2,501,484
Property and equipment, net 10 14,872,079 14,772,179
Right-of-use assets 20 1,304,963 1,280,334
Investment properties, net 11,37 2,198,135 1,933,358
Intangible assets, net 12 2,533,861 3,129,833
Investments in associates and joint ventures 13 1,556,889 1,480,722
Deferred income tax assets 29 608,924 578,443
Net defined benefit assets 17 160,748 311,142
Other non-current assets 9 827,297 820,608
Total non-current assets 28,191,825 28,299,149
Total assets ~~W~~ 42,709,982 ~~W~~ 40,980,681

5

KT Corporation and Subsidiaries

Consolidated Statements of Financial Position

YearsEnded December 31, 2023 and 2022

(in millions of Korean won) Notes December 31, 2023 December 31, 2022
Liabilities
Current liabilities
Trade and other payables 4,14,37 ~~W~~ 8,054,922 ~~W~~ 7,333,165
Borrowings 4,15,37 3,058,564 1,827,042
Other financial liabilities 4,7,37 322,099 8,791
Current income tax liabilities 236,463 232,382
Other provisions 16 115,209 109,133
Deferred income 25 51,537 55,737
Other current liabilities 9 1,308,615 1,133,018
Total current liabilities 13,147,409 10,699,268
Non-current liabilities
Trade and other payables 4,14,37 819,558 1,064,099
Borrowings 4,15,37 7,159,601 8,179,643
Other financial liabilities 4,7,37 753,739 412,650
Net defined benefit liabilities 17 63,616 51,654
Other provisions 16 107,014 91,233
Deferred income 25 153,563 165,186
Deferred income tax liabilities 29 994,330 967,650
Other non-current liabilities 9 950,015 934,575
Total non-current liabilities 11,001,436 11,866,690
Total liabilities 24,148,845 22,565,958
Equity attribute to owners of the Controlling Company
Share capital 21 1,564,499 1,564,499
Share premium 1,440,258 1,440,258
Retained earnings 22 14,494,430 14,257,343
Accumulated other comprehensive income 23 52,407 (77,776 )
Other components of equity 23 (802,418 ) (572,152 )
16,749,176 16,612,172
Non-controlling interest 1,811,961 1,802,551
Total equity 18,561,137 18,414,723
Total liabilities and equity ~~W~~ 42,709,982 ~~W~~ 40,980,681

The above consolidated statements of financial position should be read in conjunction with the accompanying notes.

6

KT Corporation and Subsidiaries

Consolidated Statements of Profit or Loss

Years Ended December 31, 2023 and 2022

(in millions of Korean won, except per share amounts) Notes 2023 2022
Operating revenue 25 ~~W~~ 26,376,273 ~~W~~ 25,650,011
Operating expenses 26 24,726,499 23,959,923
Operating profit 1,649,774 1,690,088
Other income 27 308,044 595,351
Other expenses 27 507,904 314,607
Finance income 28 486,277 690,428
Finance costs 28 568,682 749,908
Share of net losses of associates and joint ventures 13 (43,424 ) (17,285 )
Profit before income tax expense 1,324,085 1,894,067
Income tax expense 29 335,367 506,404
Profit for the year ~~W~~ 988,718 ~~W~~ 1,387,663
Profit for the year attributable to:
Owners of the Controlling Company: ~~W~~ 1,009,861 ~~W~~ 1,262,498
Non-controlling interest: (21,143 ) 125,165
Earnings per share attributable to the equity holders of the Controlling Company during theyear (in Korean won): 30
Basic earnings per share ~~W~~ 4,043 ~~W~~ 5,209
Diluted earnings per share 4,038 5,205

The above consolidated statements of profit or loss should be read in conjunction with the accompanying notes.

7

KT Corporation and Subsidiaries

Consolidated Statements of Comprehensive Income

Years Ended December 31, 2023 and 2022

(in millions of Korean won) Notes 2023 2022
Profit for the year ~~W~~ 988,718 ~~W~~ 1,387,663
Other comprehensive income
Items that will not be reclassified to profit or loss:
Remeasurements of net defined benefit liabilities 17 (137,465 ) 181,429
Share of remeasurement loss of associates and joint ventures (105 ) (332 )
Gain (loss) on valuation of equity instruments at fair value through other comprehensive<br>income 4 121,271 (141,944 )
Items that may be subsequently reclassified to profit or loss:
Gain (Loss) on valuation of debt instruments at fair value through other comprehensive<br>income 4 534 (16,630 )
Valuation gain on cash flow hedge 4,7 15,329 64,091
Other comprehensive loss from cash flow hedges reclassified to profit or loss 4 (37,942 ) (95,421 )
Share of other comprehensive loss from associates and joint ventures 21,595 (10,851 )
Exchange differences on translation of foreign operations 24,230 17,464
Total comprehensive income for the year ~~W~~ 996,165 ~~W~~ 1,385,469
Total comprehensive income for the year attributable to:
Owners of the Controlling Company ~~W~~ 1,013,535 ~~W~~ 1,236,679
Non-controlling interest (17,370 ) 148,790

The above consolidated statements of comprehensive income should be read in conjunction with the accompanying notes.

8

KT Corporation and Subsidiaries

Consolidated Statements of Changes in Equity

Years Ended December 31, 2023 and 2022

Attributable to owners of the Controlling Company
(in millions of Korean won) Notes Sharecapital Sharepremium Retainedearnings Accumulatedothercomprehensiveincome Othercomponentsof equity Total Non-controllinginterest Total equity
Balance as at January 1, 2022 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 13,287,390 ~~W~~ 117,469 ~~W~~ (1,433,080 ) ~~W~~ 14,976,536 ~~W~~ 1,590,625 ~~W~~ 16,567,161
Comprehensive income
Profit for the year 1,262,498 1,262,498 125,165 1,387,663
Remeasurements of net defined benefit liabilities 17, 29 165,524 165,524 15,905 181,429
Share of gain on remeasurements of associates and joint ventures (189 ) (189 ) (143 ) (332 )
Share of other comprehensive loss of associates and joint ventures (8,291 ) (8,291 ) (2,560 ) (10,851 )
Valuation gain on cash flow hedge 4,29 (32,140 ) (32,140 ) 810 (31,330 )
Gain on valuation of financial instruments at fair value through other comprehensive<br>income 4,29 4,091 (160,785 ) (156,694 ) (1,880 ) (158,574 )
Exchange differences on translation of foreign operations 5,971 5,971 11,493 17,464
Total comprehensive income for the year 1,431,924 (195,245 ) 1,236,679 148,790 1,385,469
Transactions with owners
Dividends paid by the Controlling Company 31 (450,394 ) (450,394 ) (450,394 )
Dividends paid to non-controlling interest of subsidiaries (26,407 ) (26,407 )
Effect of change in connection range 3,152 3,152
Change in ownership interest in subsidiaries 88,924 88,924 32,695 121,619
Appropriations of loss on disposal of treasury stock (11,577 ) 11,577
Acquisition of treasury stock 763,081 763,081 763,081
Conversion of redeemable convertible preferred shares of subsidiaries to common shares 51,476 51,476
Others (2,654 ) (2,654 ) 2,220 (434 )
Subtotal (461,971 ) 860,928 398,957 63,136 462,093
Balance as at December 31, 2022 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 14,257,343 ~~W~~ (77,776 ) ~~W~~ (572,152 ) ~~W~~ 16,612,172 ~~W~~ 1,802,551 ~~W~~ 18,414,723

9

KT Corporation and Subsidiaries

Consolidated Statements of Changes in Equity

YearsEnded December 31, 2023 and 2022

Attributable to owners of the Controlling Company
(in millions of Korean won) Notes Sharecapital Sharepremium Retainedearnings Accumulatedothercomprehensiveincome Othercomponentsof equity Total Non-controllinginterest Total equity
Balance as at January 1, 2023 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 14,257,343 ~~W~~ (77,776 ) ~~W~~ (572,152 ) ~~W~~ 16,612,172 ~~W~~ 1,802,551 ~~W~~ 18,414,723
Comprehensive income
Profit for the year 1,009,861 1,009,861 (21,143 ) 988,718
Remeasurements of net defined benefit liabilities 17, 29 (126,613 ) (126,613 ) (10,852 ) (137,465 )
Share of gain on remeasurements of associates and joint ventures (118 ) (118 ) 13 (105 )
Share of other comprehensive loss of associates and joint ventures 15,775 15,775 5,820 21,595
Valuation loss on cash flow hedge 4, 29 (22,252 ) (22,252 ) (361 ) (22,613 )
Gain (Loss) on valuation of financial instruments at fair value through other comprehensive<br>income 4, 29 222 126,028 126,250 (4,445 ) 121,805
Exchange differences on translation of foreign operations 10,632 10,632 13,598 24,230
Total comprehensive income for the year 883,352 130,183 1,013,535 (17,370 ) 996,165
Transactions with owners
Dividends paid by the Controlling Company 31 (501,844 ) (501,844 ) (501,844 )
Dividends paid to non-controlling interest of subsidiaries (24,964 ) (24,964 )
Effect of change in connection range (79,134 ) (79,134 )
Change in ownership interest in subsidiaries 216,841 216,841 128,526 345,367
Appropriations of loss on disposal of treasury stock (44,421 ) 44,421
Acquisition of treasury stock (300,243 ) (300,243 ) (300,243 )
Disposal of treasury stock 4,463 4,463 4,463
Retirement of treasury stock (100,000 ) 100,000
Accounting for Acquisitions of Interests in Joint Operations (298,196 ) (298,196 ) (298,196 )
Others 2,448 2,448 2,352 4,800
Subtotal (646,265 ) (230,266 ) (876,531 ) 26,780 (849,751 )
Balance as at December 31, 2023 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 14,494,430 ~~W~~ 52,407 ~~W~~ (802,418 ) ~~W~~ 16,749,176 ~~W~~ 1,811,961 ~~W~~ 18,561,137

The above consolidated statements of changes in equity should be read in conjunction with the accompanying notes.

10

KT Corporation and Subsidiaries

Consolidated Statements of Cash Flows

Years Ended December 31, 2023 and 2022

(in millions of Korean won) Notes 2023 2022
Cash flows from operating activities
Cash generated from operations 32 ~~W~~ 5,747,195 ~~W~~ 3,835,879
Interest paid (361,741 ) (263,520 )
Interest received 360,614 307,091
Dividends received 60,987 68,827
Income tax paid (303,766 ) (351,212 )
Net cash inflow from operating activities 5,503,289 3,597,065
Cash flows from investing activities
Collection of loans 53,885 44,287
Disposal of financial assets at fair value through profit or loss 90,487 1,298,621
Disposal of financial assets at amortized cost 1,543,663 1,046,115
Disposal of financial assets at fair value through other comprehensive income 306 97,932
Disposal of investments in associates and joint ventures 6,890 34,828
Disposal of assets held-for-sale 4,600
Disposal of property and equipment and investment properties 100,348 178,063
Disposal of intangible assets 7,078 20,088
Disposal of right-of-use assets 529 97
Settlement of derivative assets and liabilities 4,888
Increase in cash due to changes in scope of consolidation and others 46,642 6,754
Loans granted (37,771 ) (43,694 )
Acquisition of financial assets at fair value through profit or loss (220,989 ) (1,317,175 )
Acquisition of financial assets at amortized cost (1,875,525 ) (1,450,442 )
Acquisition of financial assets at fair value through other comprehensive income (10,267 ) (449,504 )
Acquisition of investments in associates and joint ventures (106,389 ) (280,988 )
Acquisition of property and equipment and investment properties (3,692,972 ) (3,439,857 )
Acquisition of intangible assets (478,685 ) (545,190 )
Acquisition of right-of-use assets (1,065 ) (2,090 )
Decrease in cash due to changes in scope of consolidation and others (51,561 ) (41,088 )
Net cash outflow from investing activities (4,620,508 ) (4,838,643 )

11

KT Corporation and Subsidiaries

Consolidated Statements of Cash Flows

Years EndedDecember 31, 2023 and 2022

(in millions of Korean won) Notes 2023 2022
Cash flows from financing activities 33
Proceeds from borrowings 5,381,231 4,234,570
Cash inflows under derivatives contracts 48,183 76,280
Cash intflow from consolidated equity transaction 632,776 125,066
Cash inflow from other financing activities 2,082 2,193
Repayments of borrowings (5,275,113 ) (2,843,249 )
Dividends paid (526,826 ) (476,800 )
Decrease in lease liabilities (407,051 ) (378,684 )
Cash outflow under derivatives contracts (41,197 )
Acquisition of treasury stock (300,086 )
Cash outflow from consolidated equity transaction (7,988 ) (28,848 )
Cash outflow from other financing activities
Net cash inflow (outflow) from financing activities (452,792 ) 669,331
Effect of exchange rate change on cash and cash equivalents 503 1,717
Net increase (decrease) in cash and cash equivalents 430,492 (570,530 )
Cash and cash equivalents
Beginning of the year 5 2,449,062 3,019,592
End of the year 5 ~~W~~ 2,879,554 ~~W~~ 2,449,062

The above consolidated statements of cash flows should be read in conjunction with the accompanying notes.

12

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

1. General Information

The consolidated financial statements have been prepared by KT Corporation, the “Controlling company” as defined under Korean IFRS 1110 Consolidated Financial Statements, by consolidating 84 subsidiaries (collectively referred to as the “Group”) including BC Card Co., Ltd., etc. as described in Note 1.2

1.1 The Controlling Company

KT Corporation (the “Controlling Company”) commenced operations on January 1, 1982, when it spun off from the Korea Communications Commission (formerly the Korean Ministry of Information and Communications) to provide telecommunication services and to engage in the development of advanced communications services under the Act of Telecommunications of Korea. The headquarters are located in Seongnam City, Gyeonggi Province, Republic of Korea, and the address of its registered head office is 90, Buljeong-ro, Bundang-gu, Seongnam City, Gyeonggi Province.

On October 1, 1997, upon the announcement of the Government-Investment Enterprises Management Basic Act and the Privatization Law, the Controlling Company became a government-funded institution under the Commercial Code of Korea.

On December 23, 1998, the Controlling Company’s shares were listed on the Korea Exchange.

On May 29, 1999, the Controlling Company issued 24,282,195 additional shares and issued American Depository Shares (ADS), which represents new shares and 20,813,311 government-owned shares, on the New York Stock Exchange. On July 2, 2001, additional ADS representing 55,502,161 government-owned shares were issued on the New York Stock Exchange.

In 2002, the Controlling Company acquired the entire government-owned shares in accordance with the Korean government’s privatization plan. As of December 31, 2023, the Korean government does not own any shares in the Controlling Company.

13

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

1.2 Consolidated Subsidiaries

(1) The consolidated subsidiaries as of December 31, 2023 and 2022, are as follows:

Controlling Interest ^1^(%)
Subsidiary Type of business Location December 31,<br><br><br>2023 December 31,<br><br><br>2022 Closing month
KT Linkus Co., Ltd. Public telephone maintenance Korea 92.4 % 92.4 % December
KT Telecop Co., Ltd. Security service Korea 86.8 % 86.8 % December
KT Alpha Co., Ltd. ^5^ Data communication Korea 73.0 % 73.0 % December
KT Service Bukbu Co., Ltd Opening services of fixed line Korea 67.3 % 67.3 % December
KT Service Nambu Co., Ltd. Opening services of fixed line Korea 77.3 % 77.3 % December
KT Commerce Inc. B2C, B2B service Korea 100.0 % 100.0 % December
KT Strategic Investment Fund No.3 Investment fund Korea 100.0 % 100.0 % December
KT Strategic Investment Fund No.4 Investment fund Korea 100.0 % 100.0 % December
KT Strategic Investment Fund No.5 Investment fund Korea 100.0 % 100.0 % December
BC-VP Strategic Investment Fund No.1 Investment fund Korea 100.0 % 100.0 % December
BC Card Co., Ltd. Credit card business Korea 69.5 % 69.5 % December
VP Inc. ^5^ Payment security service for credit card, others Korea 72.2 % 69.7 % December
H&C Network Call center for financial sectors Korea 100.0 % 100.0 % December
BC Card China Co., Ltd. Software development and data processing China 100.0 % 100.0 % December
INITECH Co., Ltd. ^5^ Internet banking ASP and security solutions Korea 63.9 % 61.3 % December
Smartro Co., Ltd. VAN (Value Added Network) business Korea 64.5 % 64.5 % December
KTDS Co., Ltd. ^5^ System integration and maintenance Korea 91.6 % 95.6 % December
KT M&S Co., Ltd. PCS distribution Korea 100.0 % 100.0 % December
GENIE Music Corporation ^2^ Online music production and distribution Korea 36.0 % 36.0 % December
KT MOS Bukbu Co., Ltd. ^5^ Telecommunication facility maintenance Korea 100.0 % 100.0 % December
KT MOS Nambu Co., Ltd. ^5^ Telecommunication facility maintenance Korea 98.4 % 98.4 % December
KT Skylife ^5^ Satellite TV Korea 50.6 % 50.2 % December
Skylife TV Co., Ltd. TV contents provider Korea 100.0 % 100.0 % December
KT Estate Inc. Residential building development and supply Korea 100.0 % 100.0 % December
KT Investment Management Inc. Asset management, real estate and consulting services Korea 100.0 % 100.0 % December
NEXR Co., Ltd. Cloud system implementation Korea 100.0 % 100.0 % December
KTGDH Co., Ltd. Data center development and related service Korea 100.0 % 100.0 % December
KT Sat Co., Ltd. Satellite communication business Korea 100.0 % 100.0 % December
Nasmedia, Co., Ltd. ^2,5^ Solution provider and IPTV advertisement sales business Korea 44.1 % 44.0 % December
KT Sports Co., Ltd. Management of sports teams Korea 100.0 % 100.0 % December
KT Music Contents Fund No.2 Music and contents investment business Korea 100.0 % 100.0 % December
KTCS Corporation ^2,5^ Database and online information provider Korea 34.1 % 34.1 % December

14

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Controlling Interest ^1^(%)
Subsidiary Type of business Location December 31,<br><br><br>2023 December 31,<br><br><br>2022 Closing month
KTIS Corporation ^2,5^ Database and online information provider Korea 33.3 % 33.3 % December
KT M Mobile Co., Ltd. Special category telecommunications operator and sales of communication device Korea 100.0 % 100.0 % December
KT Investment Co., Ltd. Financing business for new technology Korea 100.0 % 100.0 % December
PlayD Co., Ltd. Advertising agency Korea 70.4 % 70.4 % December
Next Connect PFV Residential building development and supply Korea 100.0 % 100.0 % December
KT Rwanda Networks Ltd. Network installation and management Rwanda 51.0 % 51.0 % December
AOS Ltd. System integration and maintenance Rwanda 51.0 % 51.0 % December
KT Japan Co., Ltd. Foreign investment business and local counter work Japan 100.0 % 100.0 % December
East Telecom LLC Wireless/fixed line internet business Uzbekistan 91.6 % 91.6 % December
KT America, Inc. Foreign investment business and local counter work USA 100.0 % 100.0 % December
PT. BC Card Asia Pacific Software development and supply Indonesia 99.9 % 99.9 % December
KT Hongkong Telecommunications Co., Ltd. Fixed line telecommunication business Hong Kong 100.0 % 100.0 % December
Korea Telecom Singapore Pte. Ltd. Foreign investment business and local counter work Singapore 100.0 % 100.0 % December
Texnoprosistem LLC Fixed line internet business Uzbekistan 100.0 % 100.0 % December
Nasmedia Thailand Co., Ltd. Internet advertising solution Thailand 99.9 % 99.9 % December
KT Huimangjieum Manufacturing Korea 100.0 % 100.0 % December
K-REALTY RENTAL HOUSING<br>REIT 3 Residential building Korea 88.6 % 88.6 % December
Storywiz Co., Ltd. Contents and software development and supply Korea 100.0 % 100.0 % December
KT Engineering Co., Ltd. Telecommunication facility construction and<br>maintenance Korea 100.0 % 100.0 % December
KT Studio Genie Co., Ltd. Data communication service and data<br>communication construction business Korea 90.9 % 90.9 % December
KHS Corporation Operation and maintenance of facilities Korea 100.0 % 100.0 % December
Lolab Co., Ltd. Truck transportation and trucking<br>arrangement business Korea 79.8 % 79.8 % December
HCN Co., Ltd. Cable television service Korea 100.0 % 100.0 % December
Millie Seojae ^2^ Book contents service Korea 30.2 % 38.6 % December
KT ES Pte. Ltd. Foreign investment business Singapore 57.6 % 57.6 % December
Epsilon Global Communications PTE. Ltd. Network service industry Singapore 100.0 % 100.0 % December
Epsilon Telecommunications (SP) PTE. Ltd. Fixed line telecommunication business Singapore 100.0 % 100.0 % December
Epsilon Telecommunications (US) PTE. Ltd. Fixed line telecommunication business Singapore 100.0 % 100.0 % December
Epsilon Telecommunications Limited Fixed line telecommunication business UK 100.0 % 100.0 % December
Epsilon Telecommunications (HK) Limited Fixed line telecommunication business Hong Kong 100.0 % 100.0 % December
Epsilon US Inc. Fixed line telecommunication business USA 100.0 % 100.0 % December

15

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Controlling Interest ^1^(%)
Subsidiary Type of business Location December 31,<br><br><br>2023 December 31,<br><br><br>2022 Closing month
Epsilon Telecommunications (BG) EOOD Employee support service Bulgaria 100.0 % 100.0 % December
Nasmedia-KT Alpha Future Growth Strategic Investment<br>Fund Investment fund Korea 100.0 % 100.0 % December
KT Strategic Investment Fund 6 Investment fund Korea 100.0 % 100.0 % December
Altimedia Corporation Software development and delivery Korea 100.0 % 100.0 % December
Altimidia B.V. (formerly Alticast B.V.) Software development and delivery Netherlands 100.0 % 100.0 % December
Altimidia Vietnam (formerly Alticast Company Limited) Software development and delivery Vietnam 100.0 % 100.0 % December
BCCARD VIETNAM LTD. Software sales business Vietnam 100.0 % 100.0 % December
KTP SERVICES INC. Fixed line telecommunication business Philippines 100.0 % 100.0 % December
KT RUS LLC Foreign investment business Russia 100.0 % 100.0 % December
Hangang Real Estate Investment Trust No. 24 Investment fund Korea 75.0 % 75.0 % December
KT DX Vietnam Company Limited Software development Vietnam 100.0 % 100.0 % December
KT Cloud Co., Ltd. Information and communications development Korea 92.7 % 100.0 % December
Pocheon Jeonggyori Development Co., Ltd. Residential building development Korea 80.9 % 80.9 % December
PT CRANIUM ROYAL ADITAMA Software development Indonesia 67.0 % 67.0 % December
Juice Inc.^3,5^ Online information provider/Software development and delivery Korea 42.6 % 41.2 % December
open cloud lab Co., Ltd (formerly SPARK AND ASSOCIATES INC.) IT consulting service and Telecommunication equipment sales Korea 100.0 % 100.0 % December
KD Living, Inc. Residential building management Korea 100.0 % December
KT HEALTHCARE VINA COMPANY LIMITED Medical service Vietnam 100.0 % December
K-Realty Qualified Private Real Estate Investment Trust<br>No. 1 ^4^ Real estate management Korea 6.5 % December
AQUA RETAIL VIETNAM COMPANY LIMITED E-voucher issuance and trading business Vietnam 100.0 % December
K-Realty Qualified Private Real Estate Investment Trust<br>No. 4 Real estate management Korea 93.9 % December
^1^ Sum of the interests owned by the Controlling Company and subsidiaries.
--- ---
^2^ Although the Controlling Company owns less than 50% interest in Nasmedia, Co., Ltd., KTCS Corporation and KTIS<br>Corporation, Millie Seojae, and GENIE Music Corporation these entities are consolidated as the Controlling Company can exercise the majority of the voting rights in its decision-making process at all times considering voting patterns at previous<br>shareholders’ meetings.
--- ---
^3^ Although the Controlling Company owns less than 50% interest in, Juice Inc., this entity is consolidated as the<br>Controlling Company holds the majority of the voting right based on an agreement with other investors.
--- ---
^4^ Although the Controlling Company owns less than 50% interest in<br>K-Realty Qualified Private Real Estate Investment Trust No. 1, these entities are consolidated by comprehensively considering the criteria for determining control, such as ‘power’,<br>‘variable profit’, and ‘relationship between power and variable profit’, rather than simply judging by the interests owned by the company.
--- ---
^5^ The number of treasury stocks held by subsidiaries are deducted from the total number of shares when<br>calculating the controlling percentage interest.^^
--- ---

16

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Changes in Scope of Consolidation

Subsidiaries newly included and excluded in the consolidation during the year ended December 31, 2023:

Changes Location Name of subsidiary Reason
Included Korea KD Living, Inc. Transferred
Included Vietnam KT HEALTHCARE VINA COMPANY LIMITED Newly established
Included Korea K-Realty Qualified Private Real Estate Investment Trust No. 1 Transferred
Included Vietnam AQUA RETAIL VIETNAM COMPANY LIMITED Newly established
Included Korea K-Realty Qualified Private Real Estate Investment Trust No. 4 Newly established
Excluded United Arab Emirates Epsilon M E A General Trading LLC Liquidated
Excluded Korea Alpha DX Solution Co., Ltd. Merged
Excluded Korea KT Strategic Investment Fund No.2 Liquidated
Excluded Korea LS Marine Solution Co., Ltd.<br><br><br>(formerly KT Submarine Co., Ltd.) Excluded
Excluded Korea KT-Michigan Global Contents Fund Liquidated
Excluded Russia KT Primorye IDC LLC Liquidated

17

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) Summarized information for consolidated subsidiaries as at and for the years ended December 31, 2023 and 2022, is as follows:

(in millions of Korean won) December 31, 2023^3^
Total assets Total liabilities Operatingrevenues Profit (loss)for the period
KT Linkus Co., Ltd. ~~W~~ 64,178 ~~W~~ 63,452 ~~W~~ 81,139 ~~W~~ 821
KT Telecop Co., Ltd. 375,596 235,947 525,946 5,728
KT Alpha Co., Ltd. 443,639 191,254 434,839 19,352
KT Service Bukbu Co., Ltd. 63,760 55,360 241,792 1,212
KT Service Nambu Co., Ltd. 71,576 58,745 290,985 1,354
BC Card Co., Ltd. ^1^ 6,352,878 4,722,432 4,025,023 76,545
H&C Network 81,107 4,863 27,204 1,814
Nasmedia Co., Ltd. ^1^ 513,311 262,336 146,769 17,703
KTDS Co., Ltd. ^1^ 393,667 202,067 727,261 33,971
KT M&S Co., Ltd. 258,477 209,075 695,134 3,783
KT MOS Bukbu Co., Ltd. 50,750 28,431 101,237 8,457
KT MOS Nambu Co., Ltd. 46,839 26,012 101,071 5,749
KT Skylife Co., Ltd. ^1^ 1,220,842 479,369 1,027,986 (109,407 )
KT Estate Inc. ^1^ 2,664,880 1,021,741 594,526 17,407
KT GDH Co., Ltd. 7,760 1,501 4,346 648
KT Sat Co., Ltd. 699,607 88,524 182,149 30,502
KT Sports Co., Ltd. 26,615 11,299 66,251 (12,386 )
KT Music Contents Fund No.2 5,558 1,772 534 (992 )
KT M Mobile Co., Ltd. 176,838 69,317 300,523 5,605
KT Investment Co., Ltd. ^1^ 83,638 57,420 24,976 2,180
KTCS Corporation ^1^ 434,900 234,850 1,035,366 15,804
KTIS Corporation 447,609 243,519 592,960 13,922
Next Connect PFV 946,687 629,809 (29,889 )
KT Japan Co., Ltd. ^1^ 2,015 3,341 2,770 (110 )
KT America, Inc. 6,013 701 8,928 133
KT Rwanda Networks Ltd. ^2^ 134,847 313,787 26,750 (57,628 )
AOS Ltd. ^2^ 10,763 1,983 8,252 128
KT Hong Kong Telecommunications Co., Ltd. 11,142 5,121 19,279 143
KT Huimangjieum ^1^ 8,073 2,715 16,280 1,012
KT Engineering Co., Ltd. 160,243 104,005 250,483 5,327
KT Studio Genie Co., Ltd. ^1^ 989,187 259,413 540,256 13,507
Lolab Co., Ltd. 42,744 37,838 172,543 (12,938 )
East Telecom LLC ^1^ 48,483 22,632 30,212 7,723
KT ES Pte. Ltd. ^1^ 117,009 90,392 87,837 (124,850 )
KTP SERVICES INC. 2,967 919 671 235
Altimedia Corporation ^1^ 48,381 12,374 45,013 7,352
KT RUS LLC 501 10 (378 )

18

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) December 31, 2023^3^
Total assets Total liabilities Operatingrevenues Profit (loss)for the period
KT DX Vietnam Company Limited 1,694 102 82 (207 )
KT Cloud Co., Ltd. ^1^ 1,983,972 503,241 678,313 63,956
KT Healthcare Vina Co., Ltd. 12,730 439 (721 )
K-Realty Qualified Private Real Estate Investment Trust<br>No. 1 80,266 50,693 4,682 (1,037 )
AQUA RETAIL VIETNAM COMPANY LIMITED 1,202 62 14 (248 )
^1^ As intermediate controlling companies, financial information from their consolidated financial statements is<br>presented.
--- ---
^2^ Convertible preferred stock issued by subsidiaries as of the end of the reporting period is included in<br>liabilities.
--- ---
^3^ Profit or loss from the date of acquisition of control to the end of the reporting period is included<br>
--- ---

19

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

December 31, 2022^3^
(in millions of Korean won) Total assets Total liabilities Operatingrevenues Profit (loss)for the period
KT Linkus Co., Ltd. ~~W~~ 47,734 ~~W~~ 47,498 ~~W~~ 75,907 ~~W~~ (614 )
KT Submarine Co., Ltd.<br><br><br>(formerly KT Submarine Co., Ltd.) 120,255 7,884 42,787 (12,126 )
KT Telecop Co., Ltd. 370,004 230,965 516,434 4,267
KT Alpha Co., Ltd. ^1^ 406,236 172,211 515,372 13,115
KT Service Bukbu Co., Ltd. 74,673 65,820 251,852 3,227
KT Service Nambu Co., Ltd. 80,450 66,479 301,431 3,067
BC Card Co., Ltd. ^1^ 5,666,075 4,109,200 3,895,764 148,341
H&C Network 82,737 6,640 27,392 992
Nasmedia Co., Ltd. ^1^ 516,945 275,730 152,394 27,691
KTDS Co., Ltd. ^1^ 401,932 228,474 715,527 30,941
KT M&S Co., Ltd. 255,310 204,336 728,531 8,105
KT MOS Bukbu Co., Ltd. 38,684 22,553 82,984 4,607
KT MOS Nambu Co., Ltd. 42,011 25,416 83,034 5,035
KT Skylife Co., Ltd. ^1^ 1,359,166 503,679 1,034,236 20,941
KT Estate Inc. ^1^ 2,480,489 836,672 488,290 61,454
KT GDH Co., Ltd. 12,059 1,596 4,318 451
KT Sat Co., Ltd. 677,980 89,644 180,075 28,073
KT Sports Co., Ltd. 28,220 15,461 65,283 (7,302 )
KT Music Contents Fund No.2 15,718 277 1,040 735
KT-Michigan Global Content Fund 2,371 27 33 (1,095 )
KT M Mobile Co., Ltd. 152,114 49,816 262,407 4,731
KT Investment Co., Ltd. ^1^ 103,354 79,182 15,136 2,840
KTCS Corporation ^1^ 419,726 228,618 1,030,158 17,634
KTIS Corporation 396,208 199,204 535,783 15,917
Next Connect PFV 624,734 277,967 (3,712 )
KT Japan Co., Ltd. ^1^ 1,888 3,141 1,734 226
KT America, Inc. 5,945 843 8,070 37
KT Rwanda Networks Ltd. ^2^ 126,721 267,369 30,823 (27,467 )
AOS Ltd. ^2^ 10,972 905 7,966 1,274
KT Hong Kong Telecommunications Co., Ltd. 10,505 4,768 20,384 51
KT Huimangjieum ^1^ 6,984 2,582 21,644 494
KT Engineering Co., Ltd. 141,463 89,853 258,103 10,302
KT Studio Genie Co., Ltd. ^1^ 987,270 268,911 497,998 189,498
Lolab Co., Ltd. 35,091 17,247 74,176 (7,985 )
East Telecom LLC^1^ 42,691 21,645 26,910 6,419
KT ES Pte. Ltd.^1^ 240,721 88,640 78,815 (23,957 )

20

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

December 31, 2022^3^
(in millions of Korean won) Total assets Total liabilities Operatingrevenues Profit (loss)for the period
KTP SERVICES INC. 3,832 2,044 776 (255 )
Altimedia Corporation^1^ 44,861 15,777 47,062 6,035
KT RUS LLC ^1^ 967 16 (871 )
KT DX Vietnam Company Limited 1,815 6 26
kt cloud Co., Ltd.^1^ 1,348,684 245,872 432,074 14,712
^1^ These companies are the intermediate controlling companies of other subsidiaries and the above financial<br>information is from their consolidated financial statements.
--- ---
^2^ Convertible preferred stock issued by subsidiaries as of the end of the reporting period is included in<br>liabilities.
--- ---
^3^ Profit or loss is included from the date of acquisition of control to the end of the reporting period.<br>
--- ---
2 Material Accounting Policies
--- ---

The principal accounting policies applied in the preparation of these consolidated financial statements are set out below. These policies have been consistently applied to all the years presented, unless otherwise stated.

2.1 Basis of Preparation

The Group maintains its accounting records in Korean won and prepares statutory financial statements in the Korean language (Hangul) in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (K-IFRS). The accompanying consolidated financial statements have been condensed, restructured and translated into English from the Korean language financial statements.

The consolidated financial statements of the Group have been prepared in accordance with Korean IFRS. These are the standards, subsequent amendments and related interpretations issued by the International Accounting Standards Board (IASB) that have been adopted by the Republic of Korea.

The financial statements have been prepared on a historical cost basis, except for the following:

Certain financial assets and liabilities (including derivative instruments)
Defined benefit pension plans – plan assets measured at fair value
--- ---

The preparation of the consolidated financial statements requires the use of critical accounting estimates. Management also needs to exercise judgement in applying the Group’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the consolidated financial statements are disclosed in Note 3.

21

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2.2 Changes in Accounting Policy and Disclosures

(1) New and amended standards and interpretations adopted by the Group

The Group has applied a number of new and amended standards and new interpretations issued that are effective accounting periods beginning on January 1, 2023.

K-IFRS 1117 Insurance Contract

K-IFRS 1117, which supersedes K-IFRS 1104 InsuranceContracts, establishes principles for recognition, measurement, and disclosure of insurance contracts and its main features include the measurement of insurance liabilities at present value of the fulfilment cash flows, recognition of insurance revenue based on accruals-based accounting, and separate presentation of insurance revenue, insurance service expenses, and insurance finance income or expenses.

The Group does not have any contracts that meet the definition of an insurance contract under K-IFRS 1117.

K-IFRS 1001 Presentation of Financial Statements and IFRS Practice<br>Statement 2 Making Materiality Judgements (Amendment) - Disclosure of Accounting Policies

The amendments change the requirements in K-IFRS 1001 with regard to disclosure of accounting policies. The amendments replace all instances of the term ‘significant accounting policies’ with ‘material accounting policy information’. Accounting policy information is material if, when considered together with other information included in an entity’s financial statements, it can reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements.

The supporting paragraphs in K-IFRS 1001 are also amended to clarify that accounting policy information that relates to immaterial transactions, other events or conditions is immaterial and need not be disclosed. Accounting policy information may be material because of the nature of the related transactions, other events or conditions, even if the amounts are immaterial. However, not all accounting policy information relating to material transactions, other events or conditions is itself material.

The IASB has also developed guidance and examples to explain and demonstrate the application of the ‘four-step materiality process’ described in IFRS Practice Statement 2.

K-IFRS 1001 Presentation of Financial Statements (Amendment) -<br>Disclosure of financial liabilities with condition to adjust exercise price

The amendments require disclosure of valuation gains or losses (limited to those recognized in the profit or loss) of the conversion options or warrants (or financial liabilities including them), if all or part of the financial instrument with exercise price that is adjusted depending on the issuer’s share price change is classified as financial liability as defined in paragraph 11 (2) of K-IFRS 1032.

22

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

K-IFRS 1008 Accounting Polices, Changes in Accounting Estimates andErrors (Amendment) - Definition of Accounting Estimates

The amendments replace the definition of a change in accounting estimates with a definition of accounting estimates. Under the new definition, accounting estimates are “monetary amounts in financial statements that are subject to measurement uncertainty”. The definition of a change in accounting estimates was deleted.

K-IFRS 1012 Income Taxes (Amendment) - Deferred Tax related to<br>Assets and Liabilities arising from a Single Transaction

The amendments introduce a further exception from the initial recognition exemption. Under the amendments, an entity does not apply the initial recognition exemption for transactions that give rise to equal taxable and deductible temporary differences.

Depending on the applicable tax law, equal taxable and deductible temporary differences may arise on initial recognition of an asset and liability in a transaction that is not a business combination and affects neither accounting nor taxable profit.

Following the amendments to K-IFRS 1012, an entity is required to recognise the related deferred tax asset and liability, with the recognition of any deferred tax asset being subject to the recoverability criteria in K-IFRS 1012.

K-IFRS 1012 Income Taxes (Amendment) - International Tax Reform:<br>Pillar Two Model Rules

The IASB amends the scope of IAS 12 to clarify that the Standard applies to income taxes arising from tax law enacted or substantively enacted to implement the Pillar Two model rules published by the OECD, including tax law that implements qualified domestic minimum top-up taxes described in those rules.

The amendments introduce a temporary exception to the accounting requirements for deferred taxes in IAS 12, so that an entity would neither recognise nor disclose information about deferred tax assets and liabilities related to Pillar Two income taxes.

Following the amendments, the Company is required to disclose that it has applied the exception and to disclose separately its current tax expense (income) related to Pillar Two income taxes.

There is no significant impact of the amendments listed above on consolidated financial statements.

(2) New and revised standards and interpretations in issue but not yet effective or adopted by the Group

At the date of authorization of these financial statements, the Company has not applied the following new and amended K-IFRS standards that have been issued but are not yet effective:

23

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

K-IFRS 1001 Presentation of Financial Statements (Amendment in<br>2020) - Classification of Liabilities as Current or Non-current

The amendments clarify that the classification of liabilities as current and non-current is based on rights that are existing at the end of the reporting period, specify that classification is unaffected by expectations about whether an entity will exercise its right to defer settlement of a liability, explain that rights are in existence if covenants are complied with at the end of the reporting period, and introduce a definition of ‘settlement’ to make clear that settlement refers to the transfer to the counterparty of cash, equity instruments, other assets or services.

K-IFRS 1001 Presentation of Financial Statements (Amendment in<br>2023) - Non-current Liabilities with Covenants

The amendments specify that only covenants that an entity is required to comply with on or before the end of the reporting period affect the entity’s right to defer settlement of a liability for at least twelve months after the reporting date. Such covenants affect whether the right exists at the end of the reporting period, even if compliance with the covenant is assessed only after the reporting date.

The amendments also specifies that the right to defer settlement of a liability for at least twelve months after the reporting date is not affected if an entity only has to comply with a covenant after the reporting period. However, if the entity’s right to defer settlement of a liability is subject to the entity complying with covenants within twelve months after the reporting period, an entity discloses information that enables users of financial statements to understand the risk of the liabilities becoming repayable within twelve months after the reporting period. This would include information about the covenants (including the nature of the covenants and when the entity is required to comply with them), the carrying amount of related liabilities and facts and circumstances, if any, that indicate that the entity may have difficulties complying with the covenants.

The amendments are applied retrospectively for annual reporting periods beginning on or after 1 January 2024. Earlier application of the amendments is permitted. If an entity applies the amendments for an earlier period, it is also required to apply the 2020 amendments early.

K-IFRS 1007 Cash Flow Statement and<br>K-IFRS 1107 Financial Instruments Disclosure (Amendment) - Supplier finance agreements

The amendments add a disclosure objective in K-IFRS 1007 Cash Flow Statement stating that an entity is required to disclose information about supplier finance agreements that enables users of financial statements to assess the effect of those arrangements on the Group’s liabilities and cash flows. In addition, K-IFRS 1117 was amended to add supplier finance arrangements as an example within the requirements to disclose information about an entity’s exposure to concentration of liquidity risk.

24

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

The term ‘supplier finance agreements’ is not defined; instead, the amendment describe the characteristics of an arrangement for which an entity would be required to provide the information. To meet the disclosure objective, an entity will be required to disclose in aggregate for its supplier finance arrangements:

The terms and conditions of an agreement
The carrying amount, and associated line items for which the suppliers have already received payment from the<br>finance providers
--- ---
The carrying amount, and associated line items for which the suppliers have already received payment from the<br>finance providers
--- ---
Ranges of payment due dates for both those financial liabilities that are part of a supplier finance arrangement<br>and comparable trade payables that are not part of a supplier finance arrangement
--- ---
Types of non-cash changes in the carrying amount of financial liabilities<br>corresponding to supplier finance agreements and their impact
--- ---
Liquidity risk information
--- ---

The above amendments, which contain specific transition reliefs for the first annual reporting period in which an entity applies the amendments, are applicable for annual reporting periods beginning on or after 1 January 2024, with early application permitted.

K-IFRS 1116 Lease (Amendment) - Lease Liabilities in a Sale and<br>Leaseback

The amendments add a subsequent measurement requirements for sale and leaseback transactions that satisfy the requirements in K-IFRS 1115 Revenue from contracts with customers. The amendments require the seller-lessee to determine ‘lease payments’ or ‘revised lease payments’ in such a way that the seller-lessee does not recognize a gain or loss that relates to the right of use asset retained by the seller-lessee after the lease commencement date.

The above amendments are applicable for annual reporting periods beginning on or after 1 January 2024, with early application permitted.

K-IFRS 1001 Presentation of Financial Statements (Amendment in 2023) -<br>Disclosure of Virtual Assets

The amendments, in addition to additional disclosure requirements required by other Standards for transactions related to virtual assets, setting out the disclosure requirements in each case of 1) holding virtual assets; 2) holding virtual assets on behalf of customers; and 3) issuing virtual assets.

When holding a virtual asset, disclosure on the general information of the virtual asset, the applied accounting policy, and the acquisition method, acquisition cost, and the fair value of each virtual asset at the end of the reporting period should be disclosed. In addition, when issuing a virtual asset the entity’s obligations and the status of fulfilment of the obligation related to the issued virtual asset, the timing and amount of the recognized revenue of the sold virtual asset, the quantity of virtual assets held after issuance, and important contract details should be disclosed.

25

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

The above amendments are applicable applied retrospectively for annual reporting periods beginning on or after 1 January 2024, with early application permitted.

The Group is reviewing the impact of the above-listed amendments on the consolidated financial statements.

2.3 Consolidation

The Group has prepared the consolidated financial statements in accordance with Korean IFRS 1110 Consolidated Financial Statements.

(a) Subsidiaries

Subsidiaries are all entities (including special purpose entities (“SPEs”)) over which the Group has control. The Group controls an entity when the Group 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 to direct the activities of the entity. Subsidiaries are fully consolidated from the date on which control is transferred to the Group. They are deconsolidated from the date that control ceases.

The acquisition method of accounting is used to account for business combinations by the Group. The consideration transferred is measured at the fair values of the assets transferred, and identifiable assets acquired, and liabilities and contingent liabilities assumed in a business combination are measured initially at their fair values at the acquisition date. The Group recognizes any non-controlling interest in the acquired entity on an acquisition-by-acquisition basis either at fair value or at the non-controlling interest’s proportionate share of the acquired entity’s net identifiable assets. All other non-controlling interests are measured at fair values, unless otherwise required by other standards. Acquisition-related costs are expensed as incurred.

The excess of consideration transferred, amount of any non-controlling interest in the acquired entity and acquisition-date fair value of any previous equity interest in the acquired entity over the fair value of the net identifiable assets acquired is recoded as goodwill. If those amounts are less than the fair value of the net identifiable assets of the business acquired, the difference is recognized directly in the profit or loss as a bargain purchase.

Intercompany transactions, balances and unrealized gains on transactions among group companies are eliminated. Unrealized losses are also eliminated unless the transaction provides evidence of an impairment of the transferred asset. Accounting policies of subsidiaries have been changed where necessary to ensure consistency with the policies adopted by the Group.

(b) Changes in ownership interests in subsidiaries without loss of control

Any differences between the amount of the adjustment to non-controlling interest that do not result in loss of control and any consideration paid or received is recognized in a separate reserve within equity attributable to owners of the Controlling Company.

26

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(c) Disposal of subsidiaries

When the Group ceases to have control over a subsidiary, any retained interest in the subsidiary is remeasured to its fair value with the change in carrying amount recognized in profit or loss.

(d) Associates

Associates are entities over which the Group has significant influence but does not possess control or joint control. Investments in associates are accounted for using the equity method of accounting, after initially being recognized at cost. Unrealized gains on transactions between the Group and its associates are eliminated to the extent of the Group’s interest in the associates. If the Group’s share of losses of an associate equals or exceeds its interest in the associate (including 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. After the Group’s interest is reduced to zero, additional losses are provided for, and a liability is recognized, only to the extent that the Group has incurred legal or constructive obligations or made payments on behalf of the associate. If there is an objective evidence of impairment for the investment in the associate, the Group recognizes the difference between the recoverable amount of the associate and its book amount as impairment loss. If an associate uses accounting policies other than those of the Group for transactions and events in similar circumstances, if necessary, adjustments shall be made to make the associate’s accounting policies conform to those of the Group when the associate’s financial statements are used by the Group in applying the equity method.

(e) Joint arrangements

A joint arrangement, wherein two or more parties have joint control, is classified as either a joint operation or a joint venture. A joint operator recognizes its direct right to the assets, liabilities, revenues, and expenses of joint operations and its share of any jointly held or incurred assets, liabilities, revenues, and expenses. A joint venture has rights to the net assets relating to the joint venture and accounts for that investment using the equity method.

2.4 Segment Reporting

Information of each operating segment is reported in a manner consistent with the business segment reporting provided to the chief operating decision-maker (Note 34). The chief operating decision-maker is responsible for allocating resources and assessing performance of the operating segments.

2.5 Foreign Currency Translation
(a) Functional and presentation currency
--- ---

Items included in the financial statements of each entities in the Group are measured using the currency of the primary economic environment in which each entity operates (its functional currency). The consolidated financial statements are presented in Korean won, which is the presentation currency for the consolidated financial statements.

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(b) Transactions and balances

Foreign currency transactions are translated into the functional currency using the exchange rates at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation of monetary assets and liabilities denominated in foreign currencies at year end exchange rates are generally recognized in profit or loss. They are deferred in other comprehensive income if they relate to qualifying cash flow hedges and qualifying effective portion of net investment hedges or are attributable to monetary part of the net investment in a foreign operation.

Foreign exchange gains and losses that relate to financial instruments are presented in the statement of profit or loss, within finance costs. All other foreign exchange gains and losses are presented in the statement of profit or loss within ‘other income’ or ‘other expense’.

Non-monetary items that are measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined. Translation differences on assets and liabilities carried at fair value are reported as part of the fair value gain or loss. For example, translation differences on non-monetary assets and liabilities, such as equities held at fair value through profit or loss, are recognized in profit or loss as part of the fair value gain or loss and translation differences on non-monetary assets, such as equities classified as available-for-sale financial assets, are recognized in other comprehensive income*.*

2.6 Financial Assets
(a) Classification
--- ---

The Group classifies its financial assets in the following measurement categories:

those to be measured at fair value through profit or loss
those to be measured at fair value through other comprehensive income
--- ---
those to be measured at amortized cost
--- ---

The classification depends on the Group’s business model for managing the financial assets and the contractual terms of the cash flows.

For financial assets measured at fair value, gains and losses will either be recorded in profit or loss or other comprehensive income. For investments in debt instruments, this will depend on the business model in which the investment is held. The Group reclassifies debt investments when, and only when, its business model for managing those assets changes.

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

For investments in equity instruments that are not held for trading, this will depend on whether the Group has made an irrevocable election at the time of initial recognition to account for the equity investment at fair value through other comprehensive income. Changes in fair value of the investments in equity instruments that are not accounted for as other comprehensive income are recognized in profit or loss.

(b) Measurement

At initial recognition, the Group measures a financial asset at its fair value plus, in the case of a financial asset not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition of the financial asset. Transaction costs of financial assets carried at fair value through profit or loss are expensed in profit or loss.

Financial assets with embedded derivatives are considered in their entirety when determining whether their cash flows are solely payment of principal and interest.

A. Debt instruments

Subsequent measurement of debt instruments depends on the Group’s business model for managing the asset and the cash flow characteristics of the asset. The Group classifies its debt instruments into one of the following three measurement categories:

Amortized cost: Assets that are held for collection of contractual cash flows where those cash flows represent<br>solely payments of principal and interest are measured at amortized cost. A gain or loss on a debt investment that is subsequently measured at amortized cost and is not part of a hedging relationship is recognized in profit or loss when the asset is<br>derecognized or impaired. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate method.
Fair value through other comprehensive income: Assets that are held for collection of contractual cash flows and<br>for selling the financial assets, where the assets’ cash flows represent solely payments of principal and interest, are measured at fair value through other comprehensive income. Movements in the carrying amount are taken through other<br>comprehensive income, except for the recognition of impairment loss (and reversal of impairment loss), interest income and foreign exchange gains and losses which are recognized in profit or loss. When the financial asset is derecognized, the<br>cumulative gain or loss previously recognized in other comprehensive income is reclassified from equity to profit or loss. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate<br>method. Foreign exchange gains and losses are presented in ‘finance income’ or ‘finance costs’ and impairment loss in ‘finance costs’ or ‘operating expenses’.
--- ---
Fair value through profit or loss: Assets that do not meet the criteria for amortized cost or fair value through<br>other comprehensive income are measured at fair value through profit or loss. A gain or loss on a debt investment that is subsequently measured at fair value through profit or loss and is not part of a hedging relationship is recognized in profit or<br>loss and presented net in the statement of profit or loss within ‘finance income’ or ‘finance costs’ in the period in which it arises.
--- ---

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

B. Equity instruments

The Group subsequently measures all equity investments at fair value. Where the Group’s management has elected to present fair value gains and losses on equity investments in other comprehensive income, there is no subsequent reclassification of fair value gains and losses to profit or loss following the derecognition of the investment. Dividend income from such investments continue to be recognized in profit or loss as ‘finance income’ when the Group’s right to receive payments is established.

Changes in the fair value of financial assets at fair value through profit or loss are recognized in ‘finance income’ or ‘finance costs’ in the statement of profit or loss as applicable. Impairment loss (reversal of impairment loss) on equity investments, measured at fair value through other comprehensive income, are not reported separately from other changes in fair value.

(c) Impairment

The Group assesses on a forward-looking basis the expected credit losses associated with its debt instruments carried at amortized cost and fair value through other comprehensive income. The impairment methodology applied depends on whether there has been a significant increase in credit risk. For trade receivables and lease receivables, the Group applies the simplified approach, which requires expected lifetime credit losses to be recognized from initial recognition of the receivables.

(d) Recognition and derecognition

Regular way purchases and sales of financial assets are recognized or derecognized on trade-date, the date on which the Group commits to purchase or sell the asset. Financial assets are derecognized when the rights to receive cash flows from the financial assets have expired or have been transferred and the Group has transferred substantially all the risks and rewards of ownership.

If a transfer does not result in derecognition because the Group has retained substantially all the risks and rewards of ownership of the transferred asset, the Group continues to recognize the transferred asset in its entirety and recognizes a financial liability for the consideration received.

(e) Offsetting of financial instruments

Financial assets and liabilities are offset and the net amount reported in the statements of financial position where there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis or realize the assets and settle the liability simultaneously. The legally enforceable right must not be contingent on future events and must be enforceable in the normal course of business and in the event of default, insolvency or bankruptcy of the Group or the counterparty.

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2.7 Derivative Instruments

Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently remeasured to their fair value at the end of each reporting period. The accounting treatment for subsequent changes in fair value depends on whether the derivative is designated as a hedging instrument, and if so, the nature of the item being hedged. The Group has hedge relationships and designates certain derivatives as:

hedges of a particular risk associated with the cash flows of recognized assets and liabilities and highly<br>probable forecast transactions (cash flow hedges)

At inception of the hedge relationship, the Group documents the economic relationship between hedging instruments and hedged items including whether changes in the cash flows of the hedging instruments are expected to offset changes in the cash flows of hedged items.

The fair values of derivative financial instruments designated in hedge relationships are disclosed in Note 37.

The full fair value of a hedging derivative is classified as a non-current asset or liability when the remaining maturity of the hedged item is more than 12 months; it is classified as a current asset or liability when the remaining maturity of the hedged item is less than 12 months. A non-derivative financial asset and a non-derivative financial liability is classified as a current or non-current based on its expected maturity and its settlement, respectively.

The effective portion of changes in fair value of derivatives that are designated and qualify as cash flow hedges is recognized in the cash flow hedge reserve within equity to the limit of the cumulative change in fair value (present value) of the hedge item (the present value of the cumulative change in the future expected cash flows of the hedged item) from the inception of the hedge. The ineffective portion is recognized in ‘finance income (costs)’.

Amounts of changes in fair value of effective hedging instruments accumulated in equity are recognized as ‘finance income (costs)’ for the periods when the corresponding transactions affect profit or loss.

When a hedging instrument expires, or is sold, terminated, exercised, or when a hedge no longer meets the criteria for hedge accounting, any accumulated cash flow hedge reserve at that time remains in equity until the forecast transaction occurs, resulting in the recognition of a non-financial asset such as inventory. When the forecast transaction is no longer expected to occur, the cash flow hedge reserve and deferred costs of hedging that were reported in equity are immediately reclassified to profit or loss.

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2.8 Trade Receivables

Trade receivables are recognized initially at the amount of consideration that is unconditional, unless they contain significant financing components when they are recognized at fair value. Trade receivables are subsequently measured at amortized cost using the effective interest method, less loss allowance. See Note 6 for further information about the Group’s accounting treatment for trade receivables and Note 2.6 (c) for a description of the Group’s accounting policy on impairment.

2.9 Inventories

Inventories are stated at the lower of cost and net realizable value. Cost is determined using the moving average method, except for inventories in-transit(specific identification method).

2.10 Non-Current Assets Held-for-Sale

Non-current assets (or disposal groups) are classified as assets held-for-sale when their carrying amount will be recovered principally through a sale transaction rather than through continued use and when a sale is considered highly probable. The assets are measured at the lower amount between their carrying amount and the fair value less selling costs.

2.11 Property and Equipment

Property and equipment are stated at historical cost less accumulated depreciation and accumulated impairment losses. Historical cost includes expenditures that is directly attributable to the acquisition of the items.

Depreciation of all property and equipment, except for land, is calculated using the straight-line method to allocate their cost, net of their residual values, over their estimated useful lives as follows:

Useful Life
Buildings 5 – 40 years
Structures 5 – 40 years
Machinery and equipment<br><br><br>(Telecommunications equipment and others) 2 – 40 years
Vehicles 4 – 10 years
Tools 2 – 6 years
Office equipment 2 – 8 years

The depreciation method, residual values, and useful lives of property and equipment are reviewed at the end of each reporting period and, if appropriate, accounted for as changes in accounting estimates.

32

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2.12 Investment Property

Real estate held for rental income or investment gains is classified as investment property and right-of-use asset. An investment property is measured initially at its cost. After recognition as an asset, investment property is carried at cost less accumulated depreciation and impairment losses. Investment property, except for land, is depreciated using the straight-line method over their useful lives from 5 to 40 years.

2.13 Intangible Assets
(a) Goodwill
--- ---

Goodwill is measured as explained in Note 2.3 (a) and goodwill arising from acquisition of subsidiaries and businesses is included in intangible assets. Goodwill is tested annually for impairment and carried at cost less accumulated impairment losses. Gains and losses on the disposal of subsidiaries and business include the carrying amount of goodwill relating to the subsidiaries and businesses sold.

For the purpose of impairment testing, goodwill acquired in a business combination is allocated to each of the CGUs, or group of CGUs, that is expected to benefit from the synergies of the combination. Goodwill is monitored at the operating segment level.

(b) Intangible assets excluding goodwill

Intangible assets, except for goodwill, are initially recognized at its historical cost, and carried at cost less accumulated amortization and accumulated impairment losses. Membership rights (condominium membership and golf membership), subscription rights, broadcast license, facility-use rights, and transportation rights that have indefinite useful life are not subject to amortization because there is no foreseeable limit to the period over which the assets are expected to be utilized. The Group amortizes intangible assets with a limited useful life using the straight-line method over the following periods:

Useful Life
Development costs 3 – 10 years
Software 3 –10 years
Frequency usage rights 5 – 10 years
Others^1^ 1 – 50 years
^1^ Membership rights (condominium membership and golf membership), subscription rights, broadcast license,<br>facility usage rights and transportation license included in others are classified as intangible assets with indefinite useful life.
--- ---
2.14 Borrowing Costs
--- ---

General and specific borrowing costs that are directly attributable to the acquisition, construction or production of a qualifying asset are capitalized during the period of time that is required to complete and prepare the asset for its intended use or sale. Investment income earned on the temporary investment of specific borrowings on qualifying assets is deducted from the borrowing costs eligible for capitalization. Other borrowing costs are expensed in the period in which they are incurred.

33

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2.15 Government Grants

Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Group will comply with all attached conditions. Government grants related to assets are presented in the statement of financial position by setting up the grant as deferred income that is recognized in profit or loss on a systematic basis over the useful life of the asset. Grants related to income are deferred and are presented as a credit in the statement of profit or loss within ‘other income’.

2.16 Impairment of Non-Financial Assets

Goodwill and intangible assets with indefinite useful life are tested annually for impairment at the end of each reporting period. If certain assets are deemed to be impaired, their recoverable amount is estimated in order to determine the impairment loss. The Group estimates the recoverable amount for each asset, and, in cases when the recoverable amount cannot be estimated for an asset, the recoverable amount of the cash generating unit to which the asset belongs is estimated. Corporate assets are allocated to individual cash generating units on a reasonable and consistent basis and if they cannot be allocated to individual cash generating units, they are allocated to the smallest group of cash generating units on a reasonable and consistent basis. An impairment loss is recognized for the amount by which the asset’s carrying amount exceeds its recoverable amount (higher of its fair value less costs of disposal and value in use). Impairment loss on non-financial assets other than goodwill are evaluated for reversal at the end of each reporting period.

2.17 Trade and Other Payables

These amounts represent liabilities for goods and services provided to the Group prior to the end of reporting period which are unpaid. Trade and other payables are presented as current liabilities, unless payment is not due within 12 months after the reporting period. They are recognized initially at their fair value and subsequently measured at amortized cost using the effective interest method.

2.18 Financial Liabilities
(a) Classification and measurement
--- ---

The Group’s financial liabilities at fair value through profit or loss are financial instruments held for trading. A financial liability is held for trading if it is incurred principally for the purpose of repurchasing in the near term. Derivatives that are not designated as hedging instruments or derivatives separated from financial instruments containing embedded derivatives are also categorized as held for trading.

The Group classifies non-derivative financial liabilities, except for financial liabilities at fair value through profit or loss, financial guarantee contracts and financial liabilities that arise when a transfer of financial assets does not qualify for derecognition, as financial liabilities carried at amortized cost and present as ‘trade payables and other payables’, ‘borrowings’ and ‘other financial liabilities’ in the statement of financial position.

34

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Borrowings are initially recognized as the amount obtained by subtracting the transaction cost incurred from the fair value and is then measured as amortized cost. The difference between the consideration received (net of transaction cost) and the redemption amount is recognized as profit or loss over the period using the effective interest rate method. Fees paid to receive the borrowing limit are recognized as transaction costs for loans to the extent that they are likely to be borrowed as part or all of the borrowing limit. In this case, the fee will be deferred until the draw-down occurs. There is a high possibility that borrowings will be executed as part or all of the borrowing limit agreement (relevant fees to the extent that there is no evidence) are recognized as assets as advance payments for liquidity services and amortized over the relevant borrowing limit period.

Preferred shares that require mandatory redemption at a particular date are classified as liabilities. Interest expenses on these preferred shares using the effective interest method are recognized in the statement of profit or loss as ‘finance costs’, together with interest expenses recognized from other financial liabilities.

Borrowings are classified as current liabilities unless the Group has an unconditional right to defer settlement of the liability for at least 12 months after the reporting period.

(b) Derecognition

Financial liabilities are removed from the statement of financial position when it is extinguished; for example, when the obligation specified in the contract is discharged or cancelled or expired or when the terms of an existing financial liability are substantially modified. The difference between the carrying amount of a financial liability extinguished or transferred to another party and the consideration paid (including any non-cash assets transferred or liabilities assumed) is recognized in profit or loss.

The Group’s financial liabilities at fair value through profit or loss are financial instruments held for trading and financial liabilities designated as at fair value through profit or loss. A financial liability is held for trading if it is incurred principally for the purpose of repurchasing in the near term. A derivative that is not a designated as hedging instruments and an embedded derivative that is separated are also classified as held for trading. Financial liabilities designed as at fair value through profit or loss are structured financial liabilities containing embedded derivatives issued by the Group.

2.19 Financial Guarantee Contracts

Financial guarantee contracts are recognized as a financial liability at the time the guarantee is issued. The liability is initially measured at fair value, subsequently at the higher of the following amount, and the related liability is recognized as ‘other financial liabilities’ in the consolidated statement of financial position:

the amount determined in accordance with the expected credit loss model under Korean IFRS 1109 FinancialInstruments
the amount initially recognized less, where appropriate, the cumulative amount of income recognized in<br>accordance with Korean IFRS 1115 Revenue from Contracts with Customers
--- ---

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2.20 Compound Financial Instruments

Compound financial instruments are convertible notes that can be converted into equity instruments at the option of the holder.

The liability component of a compound financial instrument is recognized initially at the fair value of a similar liability that does not have an equity conversion option, and subsequently measured at amortized cost until extinguished on conversion or maturity of the bonds. The equity component is recognized initially on the difference between the fair value of the compound financial instrument as a whole and the fair value of the liability component. Any directly attributable transaction costs are allocated to the liability and equity components in proportion to their initial carrying amounts.

2.21 Employee Benefits
(a) Post-employment benefits
--- ---

The Group operates both defined contribution and defined benefit pension plans.

A defined contribution plan is a pension plan under which the Group pays fixed contributions into a separate entity. The contributions are recognized as employee benefit expenses when an employee has rendered service.

A defined benefit plan is a pension plan that is not a defined contribution plan. Generally, post-employment benefits are payable after the completion of employment, and the benefit amount depended on the employee’s age, periods of service or salary levels. The liability recognized in the statement of financial position in respect of defined benefit pension plans is the present value of the defined benefit obligation at the end of the reporting period less the fair value of plan assets. The defined benefit obligation is calculated annually 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 approximating to the terms of the related obligation. Remeasurement gains and losses arising from experience adjustments and changes in actuarial assumptions are recognized in the period in which they occur, directly in other comprehensive income.

Changes in the present value of the defined benefit obligation resulting from plan amendments or curtailments are recognized immediately in profit or loss as past service costs.

(b) Termination benefits

Termination benefits are payable when employment is terminated by the Group before the normal retirement date, or whenever an employee accepts voluntary redundancy in exchange for these benefits. The Group recognizes termination benefits at the earlier of the following dates: when the entity can no longer withdraw the offer of those benefits or when the entity recognizes costs for a restructuring.

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KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(c) Long-term employee benefits

Certain entities within the Group provide long-term employee benefits that are entitled to employees with service period for ten years and above. The expected costs of these benefits are accrued over the period of employment using the same accounting methodology as used for defined benefit pension plans. The Group recognizes service cost, net interest on other long-term employee benefits and remeasurements as profit or loss for the year. These liabilities are valued annually by an independent qualified actuary.

2.22 Share-Based Payments

Equity-settled share-based payment is recognized at fair value of equity instruments granted, and employee benefit expense is recognized over the vesting period. At the end of each period, the Group revises its estimates of the number of options that are expected to vest based on the non-market vesting and service conditions. It recognizes the impact of the revision to original estimates, if any, in profit or loss, with a corresponding adjustment to equity.

The acquiree may have outstanding share-based payment transactions that the acquirer does not exchange for its share-based payment transactions. If vested, those acquiree share-based payment transactions are part of the non-controlling interest in the acquiree and are measured at their market-based measure. If unvested, the market-based measure of unvested share-based payment transactions is allocated to the non-controlling interest on the basis of the ratio of the portion of the vesting period completed to the greater of the total vesting period and the original vesting period of the share-based payment transaction. The balance is allocated to post-combination service.

2.23 Provisions

Provisions for service warranties, recoveries, litigations and claims, and others are recognized when the Group presently hold legal or constructive obligation as a result of past events, and when it is probable that an outflow of resources will be required to settle the obligation and the amount can be reliably estimated. Provisions are measured at the present value of management’s best estimate of the expenditure required to settle the present obligation at the end of the reporting period, and the increase in the provision due to the passage of time is recognized as interest expense.

2.24 Leases
(a) Lessee
--- ---

The Group leases various repeater server racks, offices, communication line facilities, machinery, cars, and others.

Contracts may contain both lease and non-lease components. The Group allocates the consideration in the contract to the lease and non-lease components based on their relative stand-alone prices.

37

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments:

Fixed payments (including in-substance fixed payments), less any lease<br>incentives receivable
Variable lease payment that are based on an index or a rate, initially measured using the index or rate as at the<br>commencement date
--- ---
Amounts expected to be payable by the Group (the lessee) under residual value guarantees
--- ---
The exercise price of a purchase option if the Group (the lessee) is reasonably certain to exercise that option,<br>and
--- ---
Payments of penalties for terminating the lease, if the lease term reflects the Group (the lessee) exercising<br>that option
--- ---

Measurement of lease liability also includes payments to be made in optional periods if the lessee is reasonably certain to exercise an option to extend the lease.

The Group determines the lease term as the non-cancellable period of a lease, together with both (a) periods covered by an option to extend the lease if the lessee is reasonably certain to exercise that option; and (b) periods covered by an option to terminate the lease if the lessee is reasonably certain not to exercise that option. When the lessee and the lessor each has the right to terminate the lease without permission from the other party, the Group should consider a termination penalty in determining the period for which the contract is enforceable.

The lease payments are discounted using the interest rate implicit in the lease. If that rate cannot be determined, the lessee’s incremental borrowing rate is used, which is the rate that the lessee would have to pay to borrow the funds necessary to obtain an asset of similar value in a similar economic environment with similar terms and conditions.

The Group is exposed to potential future increases in variable lease payments based on an index or rate, which are not included in the lease liability until they take effect. When adjustments to lease payments based on an index or rate take effect, the lease liability is reassessed and adjusted against the right-of-use asset.

Each lease payment is allocated between the liability and finance cost. The finance cost is charged to profit or loss over the lease period in order to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

Right-of-use assets are measured at cost comprising the following:

the amount of the initial measurement of lease liability
any lease payments made at or before the commencement date less any lease incentives received<br>
--- ---
any initial direct costs (leasehold deposits)
--- ---
restoration costs
--- ---

The right-of-use asset is depreciated over the shorter of the asset’s useful life and the lease term on a straight-line basis. If the Group is reasonably certain to exercise a purchase option, the right-of-use asset is depreciated over the underlying asset’s useful life.

38

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Payments associated with short-term leases and leases of low-value assets are recognized on a straight-line basis as an expense in profit or loss. Short-term leases are leases with a lease term of 12 months or less, such as vehicles, machinery, and others. Low-value assets are comprised of tools, office equipment, and others.

(b) Lessor

Lease income from operating leases where the Group is a lessor is recognized in income on a straight-line basis over the lease term. Initial direct costs incurred in obtaining an operating lease are added to the carrying amount of the underlying asset and recognized as expense over the lease term on the same basis as lease income. The respective leased assets are included in the statement of financial position based on their nature.

(c) Extension and termination option

Extension and termination options are included in a number of property and equipment leases across the Group. These terms are used to maximize operational flexibility in terms of managing contracts. The majority of extension and termination options held are exercisable only by the Group and not by the respective lessor. Information on critical accounting estimates and assumptions related to the determination of the lease term is presented in Note 3.

2.25 Share Capital

The Controlling Company classifies ordinary shares as equity.

Where the Controlling Company purchases its own shares, the consideration paid, including any directly attributable incremental costs, is deducted from equity until the share are cancelled or reissued. When these treasury shares are reissued, any consideration received is included in equity attributable to the equity holders of the Controlling Company.

2.26 Revenue Recognition
(a) Identifying performance obligations
--- ---

The Group mainly provides telecommunication services and sells handsets. The Group identifies performance obligations with a customer such as providing telecommunication services, selling handsets, and others. Revenue from handsets is recognized when a performance obligation is satisfied by transferring promised goods to customers, and the revenue from telecommunication services is recognized over the estimated contract periods of each service by transferring promised services to customers.

39

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(b) Allocation the transaction price and revenue recognition

The Group allocates the transaction price to each performance obligation identified in the contract based on a relative stand-alone selling prices of the goods or services being provided to the customer. To allocate the transaction price to each performance obligation on a relative stand-alone price basis, the Group determines the stand-alone selling price at contract inception of the distinct good or service underlying each performance obligation in the contract and allocates the transaction price on a relative stand-alone selling price basis. The stand-alone selling price is the price at which the Group would sell a promised good or service separately to the customer. The best evidence of a stand-alone selling price is the observable price of a good or service when the Group sells that good or service separately in similar circumstances and to similar customers. The Group recognizes the allocated amount as contract assets or contract liabilities, and amortizes it through the remaining period which is adjusted in operating income.

(c) Incremental contract acquisition costs

The Group pays commission fees when new customers subscribe to telecommunication services. The incremental contract acquisition costs are those commission fees that the Group incurs to acquire a contract with a customer that would not have been incurred if the contract had not been acquired. The Group recognizes the incremental contract acquisition costs as an asset and amortizes it over the expected period of benefit. However, as a practical expedient, the Group may recognize the incremental contract acquisition costs as an expense when it is incurred if the amortization period of the asset is one year or less.

(d) Commission fees

Commission fees are recognized when it is probable that future economic benefits will flow to the entity and these benefits can be reliably measured. Revenues are measured at the fair value of the consideration received.

2.27 Current and Deferred Income Tax

The tax expense for the period consists of current and deferred tax. Current and deferred tax is recognized in profit or loss, except to the extent that it relates to items recognized in other comprehensive income or directly in equity. In this case, the tax is also recognized in other comprehensive income or directly in equity, respectively.

The current income tax expense is measured at the amount expected to be paid to taxation authorities, using the tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period.

Management periodically evaluates positions taken in tax returns with respect to situations in which applicable tax regulation is subject to interpretation, and considers whether it is probable that a taxation authority will accept an uncertain tax treatment. The Group measures its tax balances either based on the most likely amount or the expected value, depending on which method provides a better prediction of the resolution of the uncertainty.

40

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Deferred income tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the consolidated financial statements. However, deferred income tax is not accounted for if it arises from initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting profit nor taxable profit or loss.

Deferred tax assets are recognized only if it is probable that future taxable amount will be available to utilize those temporary differences and losses.

The Group recognizes a deferred tax liability for all taxable temporary differences associated with investments in subsidiaries, associates, and interests in joint arrangements, 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. In addition, the Group recognizes a deferred tax asset for all deductible temporary differences arising from such investments to the extent that it is probable the temporary difference will reverse in the foreseeable future and taxable profit will be available against which the temporary difference can be utilized.

Deferred tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets and liabilities and when the deferred tax balances relate to the same taxation authority. Current tax assets and liabilities are offset when the Group has a legally enforceable right to offset and intends either to settle on a net basis, or to realize the assets and settle the liability simultaneously.

2.28 Dividend

Dividend distribution to the Group’s shareholders is recognized as a liability in the financial statements in the period in which the dividends are approved by the Group’s shareholders.

2.29 Approval on Issuance of the Consolidated Financial Statements

The consolidated financial statements of 2023 were approved for issuance by the Board of Directors on February 7, 2024 and are subject to change with the approval of shareholders at their Annual General Meeting.

41

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

3 Critical Accounting Estimates and Assumptions

The preparation of financial statements requires the Group to make estimates and assumptions concerning the future. Management also needs to exercise judgement in applying the Group’s accounting policies. Estimates and assumptions are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. As the resulting accounting estimates will, by definition, seldom equal the actual results, it poses significant risk of resulting in a material adjustment.

Estimates and assumptions that have significant risks of causing a material adjustment to the carrying amounts of assets and liabilities within the next financial year are discussed below. Additional information of significant judgement and assumptions of certain items are included in relevant notes.

3.1 Impairment of Non-Financial Assets (including Goodwill)

The Group determines the recoverable amount of a cash generating unit (CGU) based on fair value or value-in-use calculations to assess non-financial assets (including goodwill) for impairment (Note 12, 13).

3.2 Income Taxes

The Group’s taxable income generated from these operations are subject to income taxes based on tax laws and interpretations of tax authorities in numerous jurisdictions. There are many transactions and calculations for which the ultimate tax determination is uncertain (Note 30).

If a certain portion of the taxable income is not used for investments or increase in wages or dividends in accordance with the Tax Systemfor Recirculation of Corporate Income, the Group is liable to pay additional income tax calculated based on the tax laws. Accordingly, the measurement of current and deferred income tax is affected by the tax effects from the new tax system. As the Group’s income tax is dependent on the investments as well as wage increase, there is uncertainty in measuring the final tax effects(Note 29).

3.3 Fair Value of Financial Instruments

The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. The Group uses its judgment to select a variety of methods and make assumptions that are mainly based on market conditions existing at the end of each reporting period (Note 37).

3.4 Net Defined Benefit Liability

The present value of net defined benefit liability depends on a number of factors that are determined on an actuarial basis using a number of assumptions including the discount rate (Note 17).

42

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

3.5 Amortization of Contract Assets, Contract Liabilities and Contract Cost Assets

Contract assets, contract liabilities and contract cost assets recognized under the application of K-IFRS 1115 are amortized over the expected periods of customer relationships. The estimate of the expected terms of customer relationship is based on the historical data. If management’s estimate changes, it may cause significant differences in the timing of revenue recognition and amounts recognized.

3.6 Critical Judgments in Determining the Lease Term

In determining the lease term, management considers all facts and circumstances that create an economic incentive to exercise an extension option, or not exercise a termination option. Extension options (or periods after termination options) are only included in the lease term if the lease is reasonably certain to be extended (or not terminated).

For leases of property, machinery, and communication line facilities, the following factors are normally the most relevant:

If there are significant penalties to terminate (or not extend), the Group is typically reasonably certain to<br>extend (or not terminate).
If any leasehold improvements are expected to have a significant remaining value, the Group is typically<br>reasonably certain to extend (or not terminate).
--- ---
Otherwise, the Group considers other factors including historical lease durations and the costs and business<br>disruption required to replace the leased asset.
--- ---

Most extension options in offices, retail stores and vehicles leases have not been included in the lease liability, because the Group can replace the assets without significant cost or business disruption.

The lease term is reassessed if an option is actually exercised (or not exercised) or the Group becomes obliged to exercise (or not exercise) it. The assessment of reasonable certainty is only revised if a significant event or a significant change in circumstances occurs, which affects this assessment, and that is within the control of the lessee.

43

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

4 Financial Instruments by Category

(1) Financial instruments by category as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Financial assets Financial assets<br><br><br>at amortized<br><br><br>cost Financialassets at fair<br><br><br>value through<br> <br>profitor loss Financial assets at<br><br><br>fair value through<br><br><br>other comprehensive<br><br><br>income Derivatives<br><br><br>used for<br><br><br>hedging Total
Cash and cash equivalents ~~W~~ 2,879,554 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 2,879,554
Trade and other receivables 8,458,259 116,198 8,574,457
Other financial assets 1,385,921 939,661 1,680,168 159,211 4,164,961
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Financial liabilities Financial<br><br><br>liabilities at<br> <br>amortizedcost Financial<br><br><br>liabilities at fair<br><br><br>value through<br> <br>profit andloss Derivatives<br><br><br>used for hedging Others Total
Trade and other payables ~~W~~ 8,317,822 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 8,317,822
Borrowings 10,218,165 10,218,165
Other financial liabilities 915,185 136,106 24,547 1,075,838
Lease liabilities 1,179,909 1,179,909
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- --- --- ---
Financial assets Financial assets<br><br><br>at amortized<br><br><br>cost Financial<br><br><br>assets at fair<br> <br>valuethrough<br> <br>profit or loss Financial assets at<br><br><br>fair value through<br><br><br>other comprehensive<br><br><br>income Derivatives<br><br><br>used for<br><br><br>hedging Total
Cash and cash equivalents ~~W~~ 2,449,062 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 2,449,062
Trade and other receivables 7,459,994 129,124 7,589,118
Other financial assets 1,060,058 1,064,856 1,508,192 190,830 3,823,936
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- --- --- ---
Financial liabilities Financial<br><br><br>liabilities at<br> <br>amortizedcost Financialliabilities at fair<br><br><br>value through<br> <br>profit andloss Derivatives<br><br><br>used for hedging Others Total
Trade and other payables^1^ ~~W~~ 8,397,264 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 8,397,264
Borrowings 10,006,685 10,006,685
Other financial liabilities 246,606 141,280 33,555 421,441
Lease liabilities 1,172,038 1,172,038
^1^ Amounts related to employee benefit plans are included in Trade and other payables.
--- ---

44

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Gains or losses arising from financial instruments by category for the years ended December 31, 2023 and<br>2022, are as follows:
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Financial assets at amortized cost
Interest income ^1^ ~~W~~ 360,134 ~~W~~ 144,505
Gain on foreign currency transactions<br>^4^ 22,782 23,824
Gain (loss) on foreign currency translation 5,741 (2,151 )
Loss on disposal (3,409 ) (81 )
Loss on valuation (172,966 ) (132,102 )
Financial assets at fair value through profit or loss
Interest income ^1^ 13,480 6,008
Dividend income ^5^ 6,918 4,600
Loss on valuation ^6^ (31,965 ) (29,282 )
Gain on disposal 14,237 2,347
Gain on foreign currency transactions<br>^4^ 1,100
Gain on foreign currency translation 3,396 13,711
Financial assets at fair value through other comprehensive income
Interest income ^1^ 18,966 190,281
Dividend income ^5^ 52,813 9,522
Loss on valuation (61 )
Loss on disposal (11,193 ) (62,183 )
Other comprehensive income (loss) for the year<br>^2^ 121,805 (158,574 )
Derivative used for hedging
Gain on transactions 10,192 27,628
Gain on valuation^7^ 34,092 150,699
Other comprehensive income for the year<br>^2^ 7,772 88,048
Reclassified to profit or loss from other<br><br><br>comprehensive income for the year ^2,3^ (29,178 ) (110,616 )
Financial liabilities at fair value through profit or loss
Gain (loss) on valuation (7,394 ) 30,031
Gain on disposal 4,788
Interest expense ^1^ (44 ) (4,046 )
Gain (loss) on foreign currency transactions<br>^4^ (5 ) 24
Derivatives used for hedging
Loss on transactions (1,291 )
Gain (loss) on valuation 11,503 (17,237 )
Other comprehensive income (loss) for the year<br>^2^ 7,557 (23,957 )
Reclassified to profit or loss from other comprehensive income for the year ^2,3^ (8,764 ) 15,195
Financial liabilities at amortized cost
Interest expense ^1^ (358,486 ) (275,302 )
Gain on valuation ^8^ 3,411
Loss on foreign currency transactions<br>^4^ (24,054 ) (34,574 )
Loss on foreign currency translation (93,004 ) (168,577 )
Lease liabilities
Interest expense ^1^ (52,035 ) (41,469 )
Total ~~W~~ (92,910 ) ~~W~~ 353,980

45

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

^1^ BC Card Co., Ltd., etc., subsidiaries of the Group, recognized interest income and expenses as operating<br>revenue and expenses, respectively. Related interest income recognized as operating revenue is ~~W~~ 112,973 million (2022: ~~W~~ 68,869 million) and related interest expense recognized as operating expense is<br>~~W~~ 55,677 million (2022: ~~W~~ 27,060 million) for the year ended December 31, 2023.
^2^ The amounts directly reflected in equity after adjustments of deferred income tax.
--- ---
^3^ During the years ended December 31, 2023 and 2022, certain derivatives of the Group were settled and the<br>related gain or loss on valuation of cash flow hedge in other comprehensive income was reclassified to profit or loss for the year.
--- ---
^4^ BC Card Co., Ltd., a subsidiary of the Group, recognized foreign currency transaction gain and loss and as<br>operating revenue and expense. In relation to this, foreign currency transaction gain and loss recognized as operating revenue and expense amount to foreign exchange gain ~~W~~ 5,597 million (2022 foreign exchange gain and loss:<br>~~W~~ 3,569 million), respectively, for the year ended December 31, 2023.
--- ---
^5^ BC Card Co., Ltd., a subsidiary of the Group, recognized dividend income as operating revenue. Related dividend<br>income recognized as operating revenue is ~~W~~ 1,759 million (2022: ~~W~~ 2,299 million) for the year ended December 31, 2023.
--- ---
^6^ KT Investment Co., Ltd., etc., subsidiaries of the Group, recognized gain and loss on valuation of financial<br>instruments measured at fair value through profit or loss as operating income and expenses. In relation to this, valuation gain and loss recognized as operating revenue and expense amount to valuation loss ~~W~~ 11,112 million<br>(2022 valuation loss: ~~W~~ 7,860 million), for the year ended December 31, 2023.
--- ---
^7^ BC Card Co., Ltd., a subsidiary of the Group, recognized gain and loss on valuation of derivatives as operating<br>income and expenses. Related valuation gain recognized as operating revenue and expense is ~~W~~ 48 million (2022 valuation loss: ~~W~~ 418 million), for the year ended December 31, 2023.
--- ---
^8^ KT Cloud Co., Ltd., a subsidiary of the Group, recognized gain on valuation as convertible preferred stock of<br>~~W~~ 311,312 million for the year ended December 31, 2023.
--- ---

46

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

5 Cash and Cash Equivalents

Restricted cash and cash equivalents as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022 Description
Bank deposits ~~W~~ 49,555 ~~W~~ 29,874 Deposit restricted for<br> <br>government project and others

Cash and cash equivalents in the consolidated statement of financial position equal to cash and cash equivalents in the consolidated statement of cash flows.

6 Trade and Other Receivables
(1) Trade and other receivables as of December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- --- ---
Total amounts Provision for<br><br><br>impairment Present value<br><br><br>discount Carrying<br><br><br>amount
Current assets
Trade receivables ~~W~~ 3,596,899 ~~W~~ (330,002 ) ~~W~~ (9,165 ) ~~W~~ 3,257,732
Other receivables 3,990,900 (76,089 ) (2,254 ) 3,912,557
Total ~~W~~ 7,587,799 ~~W~~ (406,091 ) ~~W~~ (11,419 ) ~~W~~ 7,170,289
Non-current assets
Trade receivables ~~W~~ 318,429 ~~W~~ (1,288 ) ~~W~~ (19,476 ) ~~W~~ 297,665
Other receivables 1,227,929 (107,547 ) (13,879 ) 1,106,503
Total ~~W~~ 1,546,358 ~~W~~ (108,835 ) ~~W~~ (33,355 ) ~~W~~ 1,404,168
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- --- --- ---
Total amounts Provision for<br><br><br>impairment Present value<br><br><br>discount Carrying<br><br><br>amount
Current assets
Trade receivables ~~W~~ 3,439,542 ~~W~~ (342,539 ) ~~W~~ (6,926 ) ~~W~~ 3,090,077
Other receivables 3,092,261 (82,243 ) (2,023 ) 3,007,995
Total ~~W~~ 6,531,803 ~~W~~ (424,782 ) ~~W~~ (8,949 ) ~~W~~ 6,098,072
Non-current assets
Trade receivables ~~W~~ 408,098 ~~W~~ (1,199 ) ~~W~~ (11,540 ) ~~W~~ 395,359
Other receivables 1,249,096 (136,300 ) (17,109 ) 1,095,687
Total ~~W~~ 1,657,194 ~~W~~ (137,499 ) ~~W~~ (28,649 ) ~~W~~ 1,491,046

47

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) The fair values of trade and other receivables with original maturities less than one year are equal to their<br>carrying amounts because the discounting effect is immaterial. The fair value of trade and other receivables with original maturities longer than one year, which are mainly from sales of goods, is determined by discounting the expected future cash<br>flow at the weighted average interest rate.
(3) Details of changes in provisions for impairment the years ended December 31, 2023 and 2022, are as<br>follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
Tradereceivables Otherreceivables Tradereceivables Otherreceivables
Beginning balance^^ ~~W~~ 343,738 ~~W~~ 218,543 ~~W~~ 349,725 ~~W~~ 201,387
Provision 69,972 114,501 64,522 65,941
Reversal (14,941 ) (850 )
Write-off/transfer (69,246 ) (129,108 ) (69,430 ) (49,904 )
Changes in consolidation scope (310 ) (17 ) (43 )
Others (12,864 ) (5,342 ) (1,036 ) 1,969
Ending balance^^ ~~W~~ 331,290 ~~W~~ 183,636 ~~W~~ 343,738 ~~W~~ 218,543

Provisions for impairment on trade and other receivables are recognized as operating expenses, other expenses and finance costs.

(4) Details of other receivables as of December 31, 2023 and 2022, are as follows:
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- --- --- ---
Loans ~~W~~ 51,854 ~~W~~ 98,953
Receivables ^1^ 3,539,742 2,668,545
Accrued income 43,920 32,218
Refundable deposits 299,935 339,450
Loans receivable 1,067,005 1,013,428
Finance lease receivables 141,883 105,690
Others 58,357 63,941
Less: Provision for impairment (183,636 ) (218,543 )
~~W~~ 5,019,060 ~~W~~ 4,103,682
^1^ As of December 31, 2023, credit sales asset of ~~W~~ 2,696,505 million (December 31, 2022:<br>~~W~~ 1,960,579 million) held by BC Card Co., Ltd. are included..
--- ---

48

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(5) The maximum exposure of trade and other receivables to credit risk is the carrying amount of each class of<br>receivables mentioned above as of December 31, 2023.
(6) The Group classifies a certain portion of trade receivables as financial assets at fair value through other<br>comprehensive income considering the trade receivables business model for managing the asset and the cash flow characteristics of the contract.
--- ---
7 Other Financial Assets and Liabilities
--- ---
(1) Details of other financial assets and liabilities as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- --- --- ---
Other financial assets
Financial assets at amortized cost ^1^ ~~W~~ 1,385,921 ~~W~~ 1,060,058
Financial assets at fair value through profit or loss ^1,2^ 939,661 1,064,856
Financial assets at fair value through other comprehensive income ^1^ 1,680,168 1,508,192
Derivatives used for hedging 159,211 190,830
Less: Non-current (2,724,761 ) (2,501,484 )
Current ~~W~~ 1,440,200 ~~W~~ 1,322,452
Other financial liabilities
Financial liabilities at amortized cost<br>^3^ ~~W~~ 915,185 ~~W~~ 246,606
Financial liabilities at fair value through profit or loss 136,106 141,280
Derivatives used for hedging 24,547 33,555
Less: Non-current (753,739 ) (412,650 )
Current ~~W~~ 322,099 ~~W~~ 8,791
^1^ As of December 31, 2023, the Group’s other financial assets amounting to ~~W~~<br>98,309 million (December 31, 2022: ~~W~~ 102,215 million), which consist of checking account deposits, time deposits and others, are subject to withdrawal restrictions.
--- ---
^2^ As of December 31, 2023, the Group provided investments in Korea Software Financial Cooperative amounting<br>to ~~W~~ 9,016 million as a collateral for the payment guarantee provided by the Cooperative.
--- ---
^3^ The amount includes liabilities related to the obligation to acquire additional shares in Epsilon Global<br>Communications Pte. Ltd. and MILLIE Co., Ltd. and KT Cloud Co., Ltd. (Note 19).
--- ---
(2) Financial Assets at fair value through profit or loss
--- ---
1) Details of financial assets at fair value through profit or loss as of December 31, 2023 and 2022, are as<br>follows:
--- ---
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- --- --- ---
Equity instruments (Listed) ~~W~~ 13,911 ~~W~~ 26,647
Equity instruments (Unlisted) 42,185 72,517
Debt securities 880,549 942,274
Derivatives held for trading ^1^ 3,016 23,418
Total 939,661 1,064,856
Less: Non-current (782,143 ) (609,887 )
Current ~~W~~ 157,518 ~~W~~ 454,969

49

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

^1^ According to a derivative arrangement with LS Marine Solution Co., Ltd.(formerly KT Submarine Co., Ltd.),<br>derivative assets amounting to ~~W~~ 1,015 million is included as of December 31, 2023. (Note 19).
2) The maximum exposure of debt instruments of financial assets recognized at fair value through profit or loss to<br>credit risk is the carrying amount as of December 31, 2023.
--- ---
(3) Financial Assets at fair value through other comprehensive income
--- ---
1) Details of financial assets at fair value through other comprehensive income as of December 31, 2023 and<br>2022, are as follows:
--- ---
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- --- --- ---
Equity instruments (Listed)^1^ ~~W~~ 1,231,188 ~~W~~ 1,006,476
Equity instruments (Unlisted) 443,067 496,284
Debt securities 5,913 5,432
Total 1,680,168 1,508,192
Less: Non-current (1,680,168 ) (1,508,192 )
Current ~~W~~ ~~W~~
2) Upon disposal of these equity investments, any balance within the accumulated other comprehensive income is not<br>reclassified to profit or loss, but to retained earnings. Upon disposal of these debt investments, the remaining balance of the accumulated other comprehensive income is reclassified to profit or loss.
--- ---

50

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(4) Derivatives used for hedging
1) Details of valuation of derivatives used for hedging as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
Assets Liabilities Assets Liabilities
Interest rate swap ~~W~~ 1,530 ~~W~~ 191 ~~W~~ 4,236 ~~W~~
Currency swap ^1^ 157,681 24,356 186,594 33,555
Total 159,211 24,547 190,830 33,555
Less: Non-current (107,802 ) (23,696 ) (147,141 ) (33,555 )
Current ~~W~~ 51,409 ~~W~~ 851 ~~W~~ 43,689 ~~W~~
^1^ The currency swap contract is to hedge the risk of variability in cash flow from the borrowings due to changes<br>in interest rate and foreign exchange rate and the expected maximum period for the Group to be exposed to risks of cash flow fluctuation by hedged items is until September 7, 2034.
--- ---

The entire fair value of a hedging derivative is classified as a non-current asset or liability if the remaining maturity of the hedged item is more than 12 months and, as a current asset or liability, if the maturity of the hedged item is less than 12 months.

2) The valuation gains and losses on the derivative contracts for the years ended December 31, 2023 and 2022,<br>are as follows:
(in millions of Korean won)
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
2023 2022
Type of transaction Valuationgain Valuationloss Other<br><br><br>comprehensiveincome^1^ Valuationgain Valuationloss Other<br><br><br>comprehensiveincome^1^
Interest rate swap ~~W~~ 48 ~~W~~ ~~W~~ (2,945 ) ~~W~~ 63 ~~W~~ 490 ~~W~~ 4,666
Currency swap 45,709 162 (27,273 ) 154,611 20,723 79,781
Currency forwards 754
Total ~~W~~ 45,757 ~~W~~ 162 ~~W~~ (30,218) ~~W~~ 154,674 ~~W~~ 21,213 ~~W~~ 85,201
^1^ The amounts directly reflected in equity are before adjustments of deferred income tax and allocation to the non-controlling interest.
--- ---
3) The ineffective portion recognized in profit or loss on the cash flow hedges are valuation loss of<br>~~W~~ 41 million for the year ended December 31, 2023 (2022: valuation gains of ~~W~~ 2,707 million).
--- ---

51

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

4) The unsettled amount of derivative instruments for the years ended December 31, 2023 and 2022, are as<br>follows:
(i) Hedging instruments
--- ---
(in millions of Korean won and thousands of foreign currencies)
--- --- --- --- --- --- --- --- --- --- ---
Book value of hedginginstruments Changes in fairvalue to calculatethe ineffectiveportion ofhedges
Currency Contractamount Assets Liabilities
2,111,509 ~~W~~ 2,417,473 ~~W~~ 157,681 ~~W~~ 23,465 ~~W~~ 44,313
400,000 4,357 660 (162 )
7,700 10,283 231 381
KRW 240,000 1,530 191 707
Total ~~W~~ 2,672,113 ~~W~~ 159,211 ~~W~~ 24,547 ~~W~~ 45,339

All values are in US Dollars.

(in millions of Korean won and thousands of foreign currencies)
Book value of hedginginstruments Changes in fair<br>value to calculate<br>the ineffective<br>portion of<br>hedges
Currency Contract<br>amount Assets Liabilities
2,111,509 ~~W~~ 2,527,626 ~~W~~ 160,243 ~~W~~ 32,936 ~~W~~ 170,856
400,000 4,357 409 (308 )
SGD 284,000 245,208 26,351 20,511
7,700 10,283 210 129
KRW 170,000 4,236 4,717
Total ~~W~~ 2,957,474 ~~W~~ 190,830 ~~W~~ 33,555 ~~W~~ 195,905

All values are in US Dollars.

(ii) Hedged item

(in millions of Korean won) 2022
Currency Changes in fairvalue tocalculate theineffectiveportion ofhedges Cash flowhedgereserves^1^ Book value ofhedged items Changes in fairvalue tocalculate theineffectiveportion ofhedges Cash flowhedgereserves^1^
2,593,707 ~~W~~ (44,365 ) ~~W~~ (30,415 ) ~~W~~ 2,675,885 ~~W~~ (170,010 ) ~~W~~ (13,947 )
3,651 162 49 3,813 308 116
10,985 (581 ) 158 10,404 (121 ) 582
SGD 267,843 (18,720 ) 3,406
KRW 239,944 (596 ) 1,315 101,035 (4,655 ) 4,385
Total 2,848,287 ~~W~~ (45,380 ) ~~W~~ (28,893 ) ~~W~~ 3,058,980 ~~W~~ (193,198 ) ~~W~~ (5,458 )

All values are in Japanese Yen.

^1^ The amount is after the deferred tax directly added or subtracted to the capital is reflected.<br>

52

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(5) Financial Liabilities at fair value through profit or loss
1) Details of financial liabilities at fair value through profit or loss as of December 31, 2023 and 2022,<br>are as follows:
--- ---
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- ---
Derivatives held for trading ^1,2^ ~~W~~ 136,106 ~~W~~ 141,280
^1^ The Group signed a<br>shareholder-to-share agreement with financial investors participating in the paid-in capital increase of K Bank Inc. for the year<br>ended December 31, 2023. According to the Drag-Along Right, if K Back inc. fails to be listed on the terms agreed upon for the date of completion of the acquisition, financial investors may exercise the Drag-Along right to the Group, and the<br>Group may comply or exercise the right to claim for sale. If financial investors exercise the Drag-Along Right, the Group must exercise the right to claim for sale or guarantee the return on the terms agreed upon by financial investors.<br>
--- ---
^2^ The amount includes derivatives separated from convertible bonds issued by the Group (Note 15).<br>
--- ---
2) The valuation gain and loss on financial liabilities at fair value through profit or loss for the years ended<br>December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- --- --- ---
Valuation<br><br><br>gain Valuation<br><br><br>loss Valuation<br><br><br>gain Valuation<br><br><br>loss
Derivatives liabilities held for trading ~~W~~ 3,316 ~~W~~ 10,710 ~~W~~ 24,683 ~~W~~ 1,800
8 Inventories
--- ---

Inventories as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won)
December 31, 2023 December 31, 2022
Acquisitioncost Valuationallowance Carrying<br><br><br>amount Acquisitioncost Valuationallowance Carrying<br><br><br>amount
Merchandise ~~W~~ 981,127 ~~W~~ (102,215 ) ~~W~~ 878,912 ~~W~~ 768,748 ~~W~~ (96,010 ) ~~W~~ 672,738
Others 33,350 33,350 36,453 36,453
Total ~~W~~ 1014,477 ~~W~~ (102,215 ) ~~W~~ 912,262 ~~W~~ 805,201 ~~W~~ (96,010 ) ~~W~~ 709,191

Cost of inventories recognized as expenses for the year ended December 31, 2023 amounts to ~~W~~ 3,386,069 million (December 31, 2022: ~~W~~ 3,485,288 million) and reversal valuation loss on inventory amounts to ~~W~~ 6,205 million for the year ended December 31, 2023 (December 31, 2022: ~~W~~ 24,294 million).

53

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

9 Other Assets and Liabilities

Other assets and liabilities as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31,2023 December 31,2022
Other assets
Advance payments ~~W~~ 217,997 ~~W~~ 181,150
Prepaid expenses 146,628 107,775
Contract cost 1,727,468 1,817,678
Contract assets 832,520 802,253
Others 15,237 12,964
Less: Non-current (827,297 ) (820,608 )
Current ~~W~~ 2,112,553 ~~W~~ 2,101,212
Other liabilities
Advances received ^1^ ~~W~~ 582,652 ~~W~~ 376,830
Withholdings 159,080 155,017
Unearned revenue ^1^ 27,392 46,493
Lease liabilities 1,179,909 1,172,038
Contract liabilities 278,749 284,107
Others 30,848 33,108
Less: Non-current (950,015 ) (934,575 )
Current ~~W~~ 1,308,615 ~~W~~ 1,133,018
^1^ The amounts include adjustments arising from adoption of Korean IFRS 1115 Revenue from Contracts withCustomers (Note 25).
--- ---

54

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

10 Property and Equipment
(1) Changes in property and equipment for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Land Buildings<br><br><br>and<br> <br>structures Machinery andequipment Others Construction-in-progress Total
Acquisition cost ~~W~~ 1,272,940 ~~W~~ 4,830,853 ~~W~~ 42,091,573 ~~W~~ 1,276,779 ~~W~~ 1,108,043 ~~W~~ 50,580,188
Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (2,276,292 ) (32,477,744 ) (1,053,343 ) (498 ) (35,808,009 )
Beginning, net 1,272,808 2,554,561 9,613,829 223,436 1,107,545 14,772,179
Acquisition and capital expenditure 844 5,072 75,412 78,400 3,029,380 3,189,108
Disposal and termination (3,651 ) (5,012 ) (70,418 ) (1,711 ) (327 ) (81,119 )
Depreciation (148,981 ) (2,495,402 ) (75,900 ) (2,720,283 )
Impairment (recovery of impairment) (6,577 ) (1 ) (1,294 ) (7,872 )
Transfer in (out) 58,790 151,157 2,706,444 16,407 (3,092,670 ) (159,872 )
Transfer from (to) investment properties (37,725 ) (88,336 ) (189 ) (126,250 )
Acquisitions and dispositions of subsidiaries 18,761 49,532 (14,981 ) (44,543 ) (3,205 ) 5,564
Others 14,549 137 (1,628 ) (7,742 ) (4,692 ) 624
Ending, net ~~W~~ 1,324,376 ~~W~~ 2,518,130 ~~W~~ 9,806,679 ~~W~~ 188,346 ~~W~~ 1,034,548 ~~W~~ 14,872,079
Acquisition cost ~~W~~ 1,324,508 ~~W~~ 4,903,073 ~~W~~ 43,611,280 ~~W~~ 1,182,144 ~~W~~ 1,035,198 ~~W~~ 52,056,203
Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (2,384,943 ) (33,804,601 ) (993,798 ) (650 ) (37,184,124 )

55

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2022
(in millions of Korean won) Land Buildings<br><br><br>and<br> <br>structures Machinery andequipment Others Construction-in-progress Total
Acquisition cost ~~W~~ 1,315,929 ~~W~~ 4,707,250 ~~W~~ 40,270,005 ~~W~~ 1,607,853 ~~W~~ 1,094,479 ~~W~~ 48,995,516
Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (2,189,828 ) (30,953,434 ) (1,386,615 ) (621 ) (34,530,630 )
Beginning, net 1,315,797 2,517,422 9,316,571 221,238 1,093,858 14,464,886
Acquisition and capital expenditure 11,392 32,030 129,754 67,921 3,105,283 3,346,380
Disposal and termination (2,556 ) (4,338 ) (76,608 ) (4,695 ) (3,926 ) (92,123 )
Depreciation (147,620 ) (2,413,191 ) (79,376 ) (2,640,187 )
Impairment (recovery of impairment) (6,084 ) (7,825 ) (2,247 ) (16,156 )
Transfer in (out) 24,647 230,955 2,660,753 31,036 (3,010,193 ) (62,802 )
Transfer from (to) investment properties (63,278 ) (140,229 ) (2,676 ) (206,183 )
Acquisitions and dispositions of subsidiaries (4,386 ) (481 ) (3,720 ) (8,587 )
Others (13,194 ) 66,341 7,020 (4,382 ) (68,834 ) (13,049 )
Ending, net ~~W~~ 1,272,808 ~~W~~ 2,554,561 ~~W~~ 9,613,829 ~~W~~ 223,436 ~~W~~ 1,107,545 ~~W~~ 14,772,179
Acquisition cost ~~W~~ 1,272,940 ~~W~~ 4,830,853 ~~W~~ 42,091,573 ~~W~~ 1,276,779 ~~W~~ 1,108,043 ~~W~~ 50,580,188
Less: Accumulated depreciation (including accumulated impairment loss and others) (132 ) (2,276,292 ) (32,477,744 ) (1,053,343 ) (498 ) (35,808,009 )
(2) Details of property and equipment provided as collateral as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- ---
Carryingamount Securedamount Related lineitem Relatedamount Secured party
Land and Buildings ~~W~~ 81,057 ~~W~~ 64,680 Borrowings ~~W~~ 54,900 Industrial Bank of Korea, etc.
Land and Buildings 555,921 64,877 Deposits 55,965 Lessee
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- --- ---
Carryingamount Securedamount Related lineitem Relatedamount Secured party
Land and Buildings ~~W~~ 13,899 ~~W~~ 19,100 Borrowings ~~W~~ 6,000 Industrial Bank of Korea, etc.
Land and Buildings 460,166 61,733 Deposits 52,662 Lessee
(3) The borrowing costs capitalized for qualifying assets amount to ~~W~~ 17,671 million (2022:<br>~~W~~ 9,954 million) for the year ended December 31, 2023. The interest rate applied to calculate the capitalized borrowing costs, for the year ended December 31, 2023, is 1.86%~7.28%(2022: 1.85%~7.42%).
--- ---

56

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

11 Investment Properties
(1) Changes in investment properties for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
2023
--- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Land Buildings Construction-in-progress Total
Acquisition cost ~~W~~ 881,360 ~~W~~ 1,577,736 ~~W~~ 137,108 ~~W~~ 2,596,204
Less: Accumulated depreciation (1,568 ) (661,278 ) (662,846 )
Beginning, net 879,792 916,458 137,108 1,933,358
Acquisition 57,529 153,279 210,808
Disposal (8,167 ) (9,323 ) (17,490 )
Depreciation (52,869 ) (52,869 )
Transfer from property and equipment 37,725 88,336 189 126,250
Transfer and others 1 27,544 (29,467 ) (1,922 )
Ending, net ~~W~~ 909,351 ~~W~~ 1,027,675 ~~W~~ 261,109 ~~W~~ 2,198,135
Acquisition cost ~~W~~ 910,919 ~~W~~ 1,750,677 ~~W~~ 261,109 ~~W~~ 2,922,705
Less: Accumulated depreciation (1,568 ) (723,002 ) (724,570 )
2022
(in millions of Korean won) Land Buildings Construction-in-progress Total
Acquisition cost ~~W~~ 815,331 ~~W~~ 1,424,066 ~~W~~ 66,801 ~~W~~ 2,306,198
Less: Accumulated depreciation (1,568 ) (583,976 ) (585,544 )
Beginning, net 813,763 840,090 66,801 1,720,654
Acquisition 14,569 17,351 55,478 87,398
Disposal (14,725 ) (5,858 ) (17 ) (20,600 )
Depreciation (47,004 ) (47,004 )
Transfer from property and equipment 63,278 140,229 2,676 206,183
Transfer and others 2,907 (28,350 ) 12,170 (13,273 )
Ending, net ~~W~~ 879,792 ~~W~~ 916,458 ~~W~~ 137,108 ~~W~~ 1,933,358
Acquisition cost ~~W~~ 881,360 ~~W~~ 1,577,736 ~~W~~ 137,108 ~~W~~ 2,596,204
Less: Accumulated depreciation (1,568 ) (661,278 ) (662,846 )
(2) The fair value of the Group’s investment properties is ~~W~~ 5,276,169 million as<br>of December 31, 2023 (December 31, 2022: ~~W~~ 5,370,047 million). The fair value of investment properties is estimated based on the expected cash flow.
--- ---
(3) Rental income from investment properties is ~~W~~ 224,016 million in 2023 (2022:<br>~~W~~ 206,127 million) and direct operating expenses (including repairs and maintenance) arising from investment properties that generated rental income during the period are recognized as operating expenses.
--- ---

57

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(4) As of December 31, 2023, the Group (Lessor) has entered into a<br>non-cancellable operating lease contract relating to real estate lease. The future minimum lease fee under this contract is ~~W~~ 101,738 million for one year or less,<br>~~W~~ 130,707 million for more than one year and less than five years, ~~W~~ 18,817 million for over five years, and ~~W~~ 251,262 million in total.
12 Intangible Assets
--- ---
(1) Changes in intangible assets for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Goodwill Developmentcosts Software Frequency<br><br><br>usage rights Others Total
Acquisition cost ~~W~~ 1,037,887 ~~W~~ 1,803,687 ~~W~~ 1,156,951 ~~W~~ 2,617,707 ~~W~~ 1,532,061 ~~W~~ 8,148,293
Less: Accumulated amortization (including accumulated impairment loss and others) (329,664 ) (1,631,831 ) (1,001,875 ) (1,129,451 ) (925,639 ) (5,018,460 )
Beginning, net 708,223 171,856 155,076 1,488,256 606,422 3,129,833
Acquisition and capital expenditure^1^ 33,078 38,603 37 238,019 309,737
Disposal and termination^^ (4,812 ) (397 ) (6,431 ) (11,640 )
Amortization^2, 3^ (63,052 ) (52,265 ) (350,276 ) (226,316 ) (691,909 )
Impairment (230,352 ) (128 ) (16 ) (5,711 ) (236,207 )
Changes in consolidation scope 6,207 (108 ) (69 ) 6,030
Others 4,349 1,658 11,769 175 10,066 28,017
Ending, net ~~W~~ 488,427 ~~W~~ 138,600 ~~W~~ 152,662 ~~W~~ 1,138,192 ~~W~~ 615,980 ~~W~~ 2,533,861
Acquisition cost ~~W~~ 1,036,354 ~~W~~ 1,790,446 ~~W~~ 1,196,329 ~~W~~ 2,415,243 ~~W~~ 1,725,087 ~~W~~ 8,163,459
Less: Accumulated amortization (including accumulated impairment loss and others) (547,927 ) (1,651,846 ) (1,043,667 ) (1,277,051 ) (1,109,107 ) (5,629,598 )
^1^ The amounts include the transferred amount from Property and Equipment account.
--- ---
^2^ The amounts include the transferred amount to Servicing costs.
--- ---
^3^ Amounts include ~~W~~ 52,179 million which is the changed effect of useful life from Media<br>Contents asset.
--- ---
2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Goodwill Developmentcosts Software Frequency<br><br><br>usage rights Others Total
Acquisition cost ~~W~~ 1,002,530 ~~W~~ 1,812,377 ~~W~~ 1,083,426 ~~W~~ 2,617,647 ~~W~~ 1,426,576 ~~W~~ 7,942,556
Less: Accumulated amortization (including accumulated impairment loss and others) (305,658 ) (1,584,004 ) (944,001 ) (778,516 ) (883,044 ) (4,495,223 )
Beginning, net 696,872 228,373 139,425 1,839,131 543,532 3,447,333
Acquisition and capital expenditure 19,455 45,997 55,651 225,886 346,989
Disposal and termination (5,503 ) (48 ) (20,117 ) (25,668 )
Amortization^1^ (93,374 ) (54,748 ) (350,265 ) (128,874 ) (627,261 )
Impairment (24,006 ) (744 ) (508 ) (5,416 ) (30,674 )
Changes in consolidation scope (2,320 ) (802 ) (7,144 ) (10,266 )
Others 15,902 (573 ) 16,106 (610 ) (1,445 ) 29,380
Ending, net ~~W~~ 708,223 ~~W~~ 171,856 ~~W~~ 155,076 ~~W~~ 1,488,256 ~~W~~ 606,422 ~~W~~ 3,129,833
Acquisition cost ~~W~~ 1,037,887 ~~W~~ 1,803,687 ~~W~~ 1,156,951 ~~W~~ 2,617,707 ~~W~~ 1,532,061 ~~W~~ 8,148,293
Less: Accumulated amortization (including accumulated impairment loss and others) (329,664 ) (1,631,831 ) (1,001,875 ) (1,129,451 ) (925,639 ) (5,018,460 )
^1^ The amounts include the transferred amount to Servicing costs.
--- ---

58

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) The carrying amount of membership rights with an indefinite useful life not subject to amortization, except for<br>goodwill, is ~~W~~ 212,910 million as of December 31, 2023 (December 31, 2022: ~~W~~ 210,114 million).
(3) Goodwill is allocated to the Group’s cash-generating unit, which is identified by operating segments. As<br>of December 31, 2023, goodwill allocated to each cash-generation unit is as follows:
--- ---
(In millions of Korean won)
--- --- ---
Cash-Generating Unit Amount
Mobile services ~~W~~ 65,057
BC Card Co., Ltd.^^ 41,234
HCN Co., Ltd. 130,242
GENIE Music Corporation 50,214
MILLIE Co., Ltd. 54,725
PlayD Co., Ltd. 40,068
KT Telecop Co., Ltd. 15,418
Epsilon Global Communications Pte. Ltd. 45,670
KT MOS Bukbu Co., Ltd. and others 45,799
~~W~~ 488,427

The recoverable amount of goodwill has been determined based on the fair value obtained by calculating the value in use or deducting the cost of disposal. The pre-tax cash flow estimate was used to calculate the value of use based on the financial budget, such as the budget for the next five years. Cash flows after the estimated period were estimated using the expected growth rate, and the growth rate does not exceed the long-term average growth rate of the industry to which the cash-generating unit belongs. The Group determines the growth margin rate based on past performance and expectations of future market changes. The Group has determined pre-tax cash flow estimates based on past earnings and market growth forecasts, and the discount rate used reflects the specific risks of related operations.

The pre-tax discount rates applied to the calculation of the value in use of major goodwill related to HCN Co., Ltd., Epsilon Global Communications Pte. Ltd., ICT, etc. are 11.37%, 8.84%, 6.68%, etc., and the terminal growth rates are 0%, 1%, 0%, etc., respectively.

59

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

As a result of the impairment test of goodwill, the impairment loss of HCN Co., Ltd. Epsilon Global Communications PTE. Ltd., etc. are ~~W~~ 230,352 million, allocated in full to goodwill and recognized as other expenses.

13 Investments in Associates and Joint Ventures
(1) Details of associates as of December 31, 2023 and 2022, are as follows:
--- ---
Percentage of ownership (%) Location Closingmonth
--- --- --- --- --- --- --- --- --- --- ---
December 31,<br><br><br>2023 December 31,<br><br><br>2022
KIF Investment Fund 33.3 % 33.3 % Korea December
K Bank Inc. 33.7 % 33.7 % Korea December
Hyundai Robotics Co., Ltd. ^1^ 10.0 % 10.0 % Korea December
Megazone Cloud Corporation ^1^ 6.8 % 6.8 % Korea December
IGIS No. 468-1 General Private Real Estate Investment<br>Company 44.6 % 44.6 % Korea December
KT-DSC Creative Economy Youth Start-up Investment Fund 28.6 % 28.6 % Korea December
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC 35.3 % 35.3 % Korea December
LS Marine Solution Co., Ltd.^1, 2^ 7.3 % 32.9 % Korea December
^1^ As of December 31, 2023, although the Group has less than 20% ownership in ordinary share, this entity is<br>included in investments in associates as the Group has significant influence in determining the operational and financial policies.
--- ---
^2^ As of December 31, 2023, due to the loss of control of an entity, it is now accounted as an associate.<br>
--- ---
(2) Changes in investments in associates and joint ventures for the years ended December 31, 2023 and 2022,<br>are as follows:
--- ---
2023
--- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Beginning Acquisition<br><br><br>(Disposal) Share of net profit(loss) fromassociates and joint<br><br><br>ventures ^1^ Others Ending
KIF Investment Fund ~~W~~ 170,979 ~~W~~ ~~W~~ 5,443 ~~W~~ 632 ~~W~~ 177,054
K Bank Inc. 852,756 1,089 19,036 872,881
HD Hyundai Robotics Co., Ltd.<br>(formerly Hyundai Robotics Co., Ltd.) 49,372 (1,637) (1) 47,734
Megazone Cloud Corporation 136,199 (4,583) 78 131,694
IGIS No. 468-1 General Private Real Estate Investment<br>Company 23,589 (105) 23,484
KT-DSC Creative Economy Youth Start-up Investment Fund 22,123 (500) 3,494 25,117
IGIS No. 395 Professional Investors Private Investment Real <br>Estate<br>Investment LLC 16,620 (4,678) 11,942
LS Marine Solution Co., Ltd. 255 23,237 23,492
Others^1^ 209,084 101,887 (34,912) (32,568) 243,491
~~W~~ 1,480,722 ~~W~~ 101,387 ~~W~~ (35,634) ~~W~~ 10,414 ~~W~~ 1,556,889
^1^ KT Investment Co., Ltd., a subsidiary of the Group, recognized its share in net profit from associates and<br>joint ventures as operating revenue and expense. Net gain from associates and joint ventures of ~~W~~ 899 million was recognized as operating expense during the current period.
--- ---

60

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2022
(in millions of Korean won) Beginning Acquisition<br><br><br>(Disposal) Share of net profit(loss) fromassociates and jointventures ^1^ Others Ending
KIF Investment Fund ~~W~~ 178,935 ~~W~~ ~~W~~ 2,502 ~~W~~ (10,458 ) ~~W~~ 170,979
K Bank Inc. 831,737 29,010 (7,991 ) 852,756
HD Hyundai Robotics Co., Ltd.<br><br><br>(formerly Hyundai Robotics Co., Ltd.) 48,725 798 (151 ) 49,372
Megazone Cloud Corporation 130,001 (22,555 ) 28,753 136,199
IGIS No. 468-1 General Private Real Estate Investment<br>Company 25,000 (1,411 ) 23,589
KT-DSC Creative Economy Youth Start-up Investment Fund 22,138 (13 ) (2 ) 22,123
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC 17,084 (464 ) 16,620
Others^1^ 189,810 100,040 (24,688 ) (56,078 ) 209,084
~~W~~ 1,288,429 ~~W~~ 255,041 ~~W~~ (16,821 ) ~~W~~ (45,927 ) ~~W~~ 1,480,722
^1^ KT Investment Co., Ltd., a subsidiary of the Group, recognized its share in net profit from associates and<br>joint ventures as operating revenue and expense. Net gain from associates and joint ventures of ~~W~~ 464 million was recognized as operating expense during the prior period.
--- ---
(3) Summarized financial information of associates and joint ventures as at and for the years ended<br>December 31, 2023 and 2022, is as follows:
--- ---
December 31, 2023
--- --- --- --- --- --- --- --- ---
(in millions of Korean won) Current assets Non-current<br><br><br>assets Currentliabilities Non-current<br><br><br>liabilities
KIF Investment Fund ~~W~~ 128,344 ~~W~~ 402,819 ~~W~~ ~~W~~
K Bank Inc. 21,320,790 89,812 19,541,076 4,516
HD Hyundai Robotics Co., Ltd.<br><br><br>(formerly Hyundai Robotics Co., Ltd.) 251,868 134,424 106,557 9,775
Megazone Cloud Corporation 874,778 267,605 341,679 205,087
IGIS No. 468-1 General Private Real<br>Estate<br>Investment Company 2,985 49,631 11
KT-DSC Creative Economy Youth Start-up<br>Investment Fund 482 87,528 101
IGIS No. 395 Professional Investors Private<br>Investment Real Estate Investment LLC 5,690 145,769 107,553
LS Marine Solution Co., Ltd (formerly KT Submarine Co., Ltd.) 66,767 80,307 23,906 207

61

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Current assets Non-current<br><br><br>assets Current liabilities Non-current<br><br><br>liabilities
KIF Investment Fund ~~W~~ 98,132 ~~W~~ 414,804 ~~W~~ ~~W~~
K Bank Inc. 16,562,742 71,265 14,830,983 2,168
Hyundai Robotics Co., Ltd.<br><br><br>(formerly Hyundai Robotics Co., Ltd.) 278,413 135,380 63,009 64,335
Megazone Cloud Corporation 857,089 202,767 330,619 94,202
IGIS No. 468-1 General Private Real Estate Investment<br>Company 52,851 12
KT-DSC Creative Economy Youth Start-up Investment Fund 908 76,884 362
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC 9,344 127,321 90,545
2023
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
(In millions of Korean won) Operatingrevenue Profit (loss) forthe year Othercomprehensiveincome (loss) Totalcomprehensiveincome (loss) Dividendsreceived fromassociates
KIF Investment Fund ~~W~~ 33,017 ~~W~~ 16,330 ~~W~~ ~~W~~ 16,330 ~~W~~ 1,139
K Bank Inc. 946,559 10,560 56,609 67,169
Hyundai Robotics Co., Ltd. (formerly Hyundai Robotics Co., Ltd.) 167,949 (17,513 ) (1,093 ) (18,606 )
Megazone Cloud Corporation 1,410,078 (34,760 ) (3,021 ) (37,781 )
IGIS No. 468-1 General Private Real Estate Investment<br>Company 6 (234 ) (234 )
KT-DSC Creative Economy Youth Start-up Investment Fund 19,849 12,227 12,227
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC (406 ) (406 )
LS Marine Solution Co., Ltd (formerly KT Submarine Co., Ltd.) 70,779 11,618 (289 ) 11,329

62

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2022
(In millions of Korean won) Operatingrevenue Profit (loss) forthe year Othercomprehensiveincome (loss) Totalcomprehensiveincome (loss) Dividendsreceived fromassociates
KIF Investment Fund ~~W~~ 19,916 ~~W~~ 7,505 ~~W~~ (11,779 ) ~~W~~ (4,274 ) ~~W~~ 6,531
K Bank Inc. 558,656 86,498 (24,888 ) 61,610
Hyundai Robotics Co., Ltd.<br><br><br>(formerly Hyundai Robotics Co., Ltd.) 180,724 9,332 (49 ) 9,283
Megazone Cloud Corporation 1,256,208 (293,186 ) (6,609 ) (299,795 )
IGIS No. 468-1 General Private Real Estate Investment<br>Company 9 (3,161 ) (3,161 )
KT-DSC Creative Economy Youth Start-up Investment Fund 19,931 (53 ) (53 )
IGIS No. 395 Professional Investors Private Investment Real Estate Investment LLC (474 ) (474 )
(4) Details of a reconciliation of the summarized financial information to the carrying amount of interests in the<br>associates and joint ventures as at and for the years ended December 31, 2023 and 2022, are as follows:
--- ---
2023
--- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Net assets<br><br><br>(a) Percentage ofownership<br><br><br>(b) Share in netassets<br><br><br>(c)=(a)x(b) Intercompanytransaction andothers<br><br><br>(d) Book amount<br><br><br>(c)+(d)
KIF Investment Fund ~~W~~ 531,164 33.33 % ~~W~~ 177,054 ~~W~~ ~~W~~ 177,054
K Bank Inc. 1,865,010 33.72 % 628,910 243,971 872,881
Hyundai Robotics Co., Ltd. (formerly Hyundai Robotics Co., Ltd.) 269,960 10.00 % 26,996 20,738 47,734
Megazone Cloud Corporation 547,786 6.83 % 37,404 94,290 131,694
IGIS No. 468-1 General Private Real Estate Investment<br>Company 52,605 44.64 % 23,484 23,484
KT-DSC Creative Economy Youth Start-up<br>Investment Fund 87,908 28.57 % 25,117 25,117
IGIS No. 395 Professional Investors Private<br>Investment Real Estate Investment LLC 43,905 35.29 % 15,496 (3,554 ) 11,942
LS Marine Solution Co., Ltd (formerly KT Submarine Co., Ltd.) 122,961 7.30 % 8,972 14,520 23,492

63

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2022
(in millions of Korean won) Net assets<br><br><br>(a) Percentage ofownership<br><br><br>(b) Share in netassets<br><br><br>(c)=(a)x(b) Intercompanytransaction andothers<br><br><br>(d) Book amount<br><br><br>(c)+(d)
KIF Investment Fund ~~W~~ 512,936 33.33 % ~~W~~ 170,979 ~~W~~ ~~W~~ 170,979
K Bank Inc. 1,800,856 33.72 % 607,276 245,480 852,756
Hyundai Robotics Co., Ltd. (formerly Hyundai Robotics Co., Ltd.) 286,449 10.00 % 28,645 20,727 49,372
Megazone Cloud Corporation 635,035 6.83 % 43,360 92,839 136,199
IGIS No. 468-1 General Private Real<br>Estate<br>Investment Company 52,839 44.64 % 23,589 23,589
KT-DSC Creative Economy Youth Start-up<br>Investment Fund 77,430 28.57 % 22,123 22,123
IGIS No. 395 Professional Investors Private<br>Investment Real Estate Investment LLC 46,120 35.29 % 16,278 342 16,620
(5) Due to discontinuance of equity method of accounting, the Group has not recognized loss from associates and<br>joint ventures of ~~W~~ 833 million for the year ended December 31, 2023 (2022: ~~W~~ 909 million). The unrecognized accumulated comprehensive loss of associates and joint ventures as of December 31 is<br>~~W~~ 10,748 million (December 31, 2022: ~~W~~ 9,915 million).
--- ---

64

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

14 Trade and Other Payables
(1) Details of trade and other payables as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Current liabilities
Trade payables ~~W~~ 1,297,752 ~~W~~ 1,150,515
Other payables 6,757,170 6,182,650
Total ~~W~~ 8,054,922 ~~W~~ 7,333,165
Non-current liabilities
Trade payables ~~W~~ 3,202 ~~W~~
Other payables ~~W~~ 816,356 ~~W~~ 1,064,099
Total ~~W~~ 819,558 ~~W~~ 1,064,099
(2) Details of other payables as of December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Non-trade payables ^1^ ~~W~~ 5,207,165 ~~W~~ 4,981,300
Accrued expenses 1,267,700 1,234,023
Operating deposits 880,810 818,603
Others 217,851 212,823
Less: non-current (816,356 ) (1,064,099 )
Current ~~W~~ 6,757,170 ~~W~~ 6,182,650

^1^As of December 31, 2023, credit sale liabilities amounting to ~~W~~ 2,314,077 million (December 31, 2022: ~~W~~ 1,754,075 million) held by BC Card Co., Ltd. (a subsidiary of the Group) are included.

65

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

15 Borrowings
(1) Details of borrowings as of December 31, 2023 and 2022, are as follows:
--- ---
1) Debentures
--- ---
(in millions of Korean won and foreign currencies in thousands) December 31, 2023 December 31, 2022
--- --- --- --- --- --- --- --- --- ---
Type Maturity Annual interest rates Foreigncurrency Foreigncurrency
MTNP notes ^1^ Sep. 7, 2034 6.500% 100,000 128,940 100,000 126,730
MTNP notes Jul. 18, 2026 2.500% 400,000 515,760 400,000 506,920
MTNP notes Aug. 23, 2023 100,000 126,730
MTNP notes Jul. 19, 2024 0.330% 400,000 3,651 400,000 3,813
MTNP notes Sep. 1. 2025 1.000% 400,000 515,760 400,000 506,920
FR notes ^2^ Nov. 1, 2024 Compounded<br>SOFR+1.210% 350,000 451,290 350,000 443,555
FR notes Jun. 19, 2023 SGD 284,000 267,843
MTNP notes Jan. 21, 2027 1.375% 300,000 386,820 300,000 380,190
MTNP notes Aug. 08, 2025 4.000% 500,000 644,700 500,000 633,650
The 183-3rd Public bond Dec. 22, 2031 4.270% 160,000 160,000
The 184-2nd Public bond Apr. 10, 2023 190,000
The 184-3rd Public bond Apr. 10, 2033 3.170% 100,000 100,000
The 186-3rd Public bond Jun. 26, 2024 3.418% 110,000 110,000
The 186-4th Public bond Jun. 26, 2034 3.695% 100,000 100,000
The 187-3rd Public bond Sep. 2, 2024 3.314% 170,000 170,000
The 187-4th Public bond Sep. 2, 2034 3.546% 100,000 100,000
The 188-2nd Public bond Jan. 29, 2025 2.454% 240,000 240,000
The 188-3rd Public bond Jan. 29, 2035 2.706% 50,000 50,000
The 189-3rd Public bond Jan. 28, 2026 2.203% 100,000 100,000
The 189-4th Public bond Jan. 28, 2036 2.351% 70,000 70,000
The 190-2nd Public bond Jan. 30, 2023 150,000
The 190-3rd Public bond Jan. 30, 2028 2.947% 170,000 170,000
The 190-4th Public bond Jan. 30, 2038 2.931% 70,000 70,000
The 191-2nd Public bond Jan. 15, 2024 2.088% 80,000 80,000
The 191-3rd Public bond Jan. 15, 2029 2.160% 110,000 110,000
The 191-4th Public bond Jan. 14, 2039 2.213% 90,000 90,000
The 192-2nd Public bond Oct. 11, 2024 1.578% 100,000 100,000
The 192-3rd Public bond Oct. 11, 2029 1.622% 50,000 50,000
The 192-4th Public bond Oct. 11, 2039 1.674% 110,000 110,000
The 193-1st Public bond Jun. 16, 2023 150,000
The 193-2nd Public bond Jun. 17, 2025 1.434% 70,000 70,000
The 193-3rd Public bond Jun. 17, 2030 1.608% 20,000 20,000
The 193-4th Public bond Jun. 15, 2040 1.713% 60,000 60,000
The 194-1st Public bond Jan. 26, 2024 1.127% 130,000 130,000
The 194-2nd Public bond Jan. 27, 2026 1.452% 140,000 140,000

All values are in US Dollars.

66

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won and foreign currencies in thousands) December 31, 2023 December 31, 2022
Type Maturity Annual interest rates Foreigncurrency Koreanwon Foreigncurrency Koreanwon
The 194-3rd Public bond Jan. 27, 2031 1.849% 50,000 50,000
The 194-4th Public bond Jan. 25, 2041 1.976% 80,000 80,000
The 195-1st Public bond Jun. 10, 2024 1.387% 180,000 180,000
The 195-2nd Public bond Jun. 10, 2026 1.806% 80,000 80,000
The 195-3rd Public bond Jun. 10, 2031 2.168% 40,000 40,000
The 196-1st Public bond Jan. 27, 2025 2.596% 270,000 270,000
The 196-2nd Public bond Jan. 27, 2027 2.637% 100,000 100,000
The 196-3rd Public bond Jan. 27, 2032 2.741% 30,000 30,000
The 197-1st Public bond Jun. 27, 2025 4.191% 280,000 280,000
The 197-2nd Public bond Jun. 29, 2027 4.188% 120,000 120,000
The 198-1st Public bond Jan. 10, 2025 3.847% 70,000
The 198-2nd Public bond Jan. 12, 2026 3.869% 150,000
The 198-3rd Public bond Jan. 12, 2028 3.971% 80,000
The 199-1st Public bond Jul. 11, 2025 4.028% 85,000
The 199-2nd Public bond Jul. 10, 2026 4.146% 160,000
The 199-3rd Public bond Jul. 12, 2028 4.221% 155,000
The 18-1st unsecured bond Jul. 2, 2024 1.844% 100,000 100,000
The 18-2nd unsecured bond Jul. 2, 2026 2.224% 50,000 50,000
The 148th Won-denominated unsecured bond Jun. 23, 2023 100,000
The 149-1st<br>Won-denominated unsecured bond Mar. 8, 2024 1.440% 70,000 70,000
The 149-2nd<br>Won-denominated unsecured bond Mar. 10, 2026 1.756% 30,000 30,000
The 150-1st<br>Won-denominated unsecured bond Apr. 7, 2023 20,000
The 150-2nd<br>Won-denominated unsecured bond Apr. 8, 2024 1.462% 30,000 30,000
The 151-1st<br>Won-denominated unsecured bond May 12, 2023 10,000
The 151-2nd<br>Won-denominated unsecured bond May 14, 2024 1.432% 40,000 40,000
The 152-1st<br>Won-denominated unsecured bond Aug. 30, 2024 1.813% 80,000 80,000
The 152-2nd<br>Won-denominated unsecured bond Aug. 28, 2026 1.982% 20,000 20,000
The 153-1st Won denominated unsecured bond Nov. 10, 2023 30,000
The 153-2nd<br>Won-denominated unsecured bond Nov. 11, 2024 2.425% 70,000 70,000
The 154th Won-denominated unsecured bond Jan. 23, 2025 2.511% 40,000 40,000
The 155-1st<br>Won-denominated unsecured bond Feb. 29, 2024 2.615% 50,000 50,000
The 155-2nd<br>Won-denominated unsecured bond Sep. 2, 2024 2.745% 20,000 20,000

67

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won and foreign currencies in thousands) December 31, 2023 December 31, 2022
Type Maturity Annual interestrates Foreigncurrency Koreanwon Foreigncurrency Koreanwon
The 155-3rd<br>Won-denominated unsecured bond Feb. 28, 2025 2.880% 20,000 20,000
The 156-1st<br>Won-denominated unsecured bond^3^ Mar. 25, 2025 5Y CMS+0.404% 60,000 60,000
The 156-2nd<br>Won-denominated unsecured bond ^3^ Mar. 25, 2032 10Y CMS+0.965% 40,000 40,000
The 157-1st<br>Won-denominated unsecured bond Apr. 28, 2023 30,000
The 157-2nd<br>Won-denominated unsecured bond Oct. 27, 2023 30,000
The 158th Won-denominated unsecured bond Jan. 27, 2025 4.421% 50,000 50,000
The 159-1st<br>Won-denominated unsecured bond Aug. 09, 2024 4.267% 30,000 30,000
The 159-2nd<br>Won-denominated unsecured bond Aug. 11, 2027 4.505% 30,000 30,000
The 160-1st<br>Won-denominated unsecured bond Jun. 14, 2024 5.615% 20,000 20,000
The 160-2nd<br>Won-denominated unsecured bond Dec. 13, 2024 5.667% 20,000 20,000
The 160-3rd<br>Won-denominated unsecured bond Dec. 12, 2025 5.769% 30,000 30,000
The 161-1st<br>Won-denominated unsecured bond Jun. 21, 2024 5.527% 10,000 10,000
The 161-2nd<br>Won-denominated unsecured bond Dec. 20, 2024 5.557% 20,000 20,000
The 161-3rd<br>Won-denominated unsecured bond Jun. 20, 2025 5.594% 30,000 30,000
The 161-4th<br>Won-denominated unsecured bond Dec. 22, 2025 5.615% 10,000 10,000
The 162-1st<br>Won-denominated unsecured bond Dec. 27, 2023 50,000
The 162-2nd<br>Won-denominated unsecured bond Jan. 26, 2024 5.069% 40,000 40,000
The 162-3rd<br>Won-denominated unsecured bond Apr. 26, 2024 5.080% 10,000 10,000
The 163-1st<br>Won-denominated unsecured bond Feb. 20, 2026 4.059% 20,000
The 163-2nd<br>Won-denominated unsecured bond Feb. 22, 2028 4.311% 80,000
The 164-1st<br>Won-denominated unsecured bond Apr. 12, 2024 3.778% 10,000
The 164-2nd<br>Won-denominated unsecured bond Oct. 24, 2024 3.821% 30,000
The 164-3rd<br>Won-denominated unsecured bond Apr. 14, 2028 4.220% 30,000
The 165-1st<br>Won-denominated unsecured bond May. 09, 2025 3.870% 30,000
The 165-2nd<br>Won-denominated unsecured bond Nov. 09, 2026 3.932% 10,000

68

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won and foreign currencies in thousands) December 31, 2023 December 31, 2022
Type Maturity Annual interestrates Foreigncurrency Koreanwon Foreigncurrency Koreanwon
The 165-3rd<br>Won-denominated unsecured bond May. 07, 2027 3.972% 30,000
The 166-1st<br>Won-denominated unsecured bond Nov. 22. 2024 4.205% 20,000
The 166-2nd<br>Won-denominated unsecured bond Apr. 22. 2025 4.310% 40,000
The 166-3rd<br>Won-denominated unsecured bond May. 21. 2025 4.332% 10,000
The 166-4th<br>Won-denominated unsecured bond May. 22. 2025 4.332% 40,000
The 167-1st<br>Won-denominated unsecured bond Dec. 20. 2024 3.865% 30,000
The 167-2nd<br>Won-denominated unsecured bond Jan. 22. 2025 3.864% 50,000
The 167-3rd<br>Won-denominated unsecured bond Feb. 21. 2025 3.864% 10,000
The 167-4th<br>Won-denominated unsecured bond Dec. 22. 2025 3.858% 10,000
Subtotal 8,446,921 8,406,351
Less: Current portion (1,924,523 ) (1,154,101 )
Discount on bonds (19,248 ) (23,728 )
Total ~~W~~ 6,503,150 ~~W~~ 7,228,522
^1^ As of December 31, 2023, the Controlling Company has outstanding notes in the amount of USD 100 million<br>with fixed interest rates under Medium Term Note Program (“MTNP”) registered in the Singapore Stock Exchange, which allowed issuance of notes of up to USD 2,000 million. However, the MTNP has been terminated since 2007.<br>
--- ---
^2^ The Daily SOFR is approximately 5.380% as of December 31, 2023. Due to the recent suspension of LIBOR<br>calculation, the Group changed the alternative indicator interest rate to Compounded SOFR+1.210%.
--- ---
^2^ The CMS (5Y) and CMS (10Y) is approximately 2.993% and 2.990%, respectively as of December 31, 2023.<br>
--- ---

69

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2) Convertible bonds
(in millions of Korean won)
--- --- --- --- --- --- --- --- --- --- --- --- ---
Type Issuance Date Maturity Annual interest Rate December 31, 2023 December 31, 2022
The 1st CB (Private) ^1^ Jun. 5, 2020 Jun. 5, 2025 ^2^ ~~W~~ 8,000 ~~W~~ 8,000
The 1st unsecured CB ^3^ Jul. 25, 2022 Jan. 25, 2025 30,000
Redemption premium 2,267 4,565
Bond discount issuance (1,811 ) (7,206 )
Subtotal 8,456 35,359
Current portion (8,456 )
Total ~~W~~ ~~W~~ 35,359
^1^ Common shares of Storywiz are subject to conversion (appraisal period: June 5, 2021~May 4, 2025).<br>
--- ---
^2^ Nominal interest rate and maturity yield is approximately 0% and 5%, respectively, and will be settled on<br>maturity.
--- ---
^3^ During the current period, bonds of kt cloud are converted to 73,800 of Common shares and 73,800 of preference<br>shares.
--- ---

70

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

3) Borrowings
a. Short-term borrowings
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- --- --- --- ---
Type Financial institution Annual interest rates Foreigncurrency Foreigncurrency
Operational Shinhan Bank^^ 3.840%~6.440% 151,500 105,000
30,000
50,000
Woori Bank^1,^ 4.400% 70,000
CD(91D)+1.960% 20,000
Korea Development Bank 3.230%~4.950% 34,900 27,201
Industrial Bank of Korea 4.862% 6,000 6,000
Hana Bank^1^ CD(91D)+0.126% 4,800 5,000
KB SECURITIES 4.110%~4.910% 69,635 94,822
NH INVESTMENT &<br> SECURITIES 20,000
HSBC ^2^ Compounded SOFR<br>+2.100% 23,600 30,450 18,500 23,451
NongHyup Bank^^ 4.880% 8,500 9,000
15,000
IBK Securities 20,000
Hi Investment & Securities and others 99,524
Korea Investment 4.910% 30,000
Total 425,785 504,998

All values are in US Dollars.

^1^ CD (91D) is approximately 3.820% as of December 31, 2023.
^2^ The Daily SOFR is approximately 5.380% as of December 31, 2023.
--- ---

71

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

b. Long-term borrowings
(in millions of Korean won and thousands of foreign currencies) December 31, 2022
--- --- --- --- --- --- --- --- --- --- ---
Financial institution Type Annual interest rates Foreign<br><br><br>currency
Export-Import <br>Bank of Korea Inter-Korean<br>Cooperation Fund^1^ 1.00% 1,480 1,974
CA-CIB General loans 3.380%~4.150% 200,000 200,000
JPM General loans 2.700%~4.480% 200,000 100,000
DBS General loans 4.079% 100,000 100,000
Shinhan Bank General loans^2^ Term SOFR(3M)+1.100% 8,910 11,489 8,910 11,292
General loans^^ 38,000 48,158
General loans 1.900%~3.200% 31,472 40,655 31,472 39,855
General loans ^3^ 4.490% 62,398 62,398
General loans ^2^ Term SOFR(3M)+1.300% 21,127 27,241 21,127 26,774
General loans ^2^ Term SOFR(3M)+1.940% 35,000 45,129
General loans ^2^ CD(91D)+1.800% 16,900
Woori Bank General loans ^2^ IBOR(3M)+0.900% 7,700 10,985 7,700 10,404
General loans 3.320%~5.800% 41,526 15,000
PF loans 40,682
Hi Investment & Securities CP 2.302% 92,994 90,724
Bookook Investment CP 3.490%~3.603% 19,525 18,806
Korea Investment CP 3.622% 75,928 73,039
Korea Development Bank General loans 3.000%~4.870% 137,000 38,000
NH Jayang PF loans^2^ CD(91D)+1.150% 53,033 59,066
Kyobo Life Insurance PF loans^2^ CD(91D)+1.150%~CD(91D)+3.450% 84,586 66,390
Standard Chartered Bank Korea PF loans^2^ CD(91D)+1.150%~CD(91D)+3.450% 56,390 44,260
General loans ^2^ CD(91D)+0.750% 32,000
Samsung Life Insurance PF loans 1.860%~4.160% 46,992 36,883
Subtotal 1,356,251 1,083,705
Less: Current portion (699,800 ) (167,943 )
656,451 915,762

All values are in Euros.

^1^ The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a seven-year grace<br>period.
^2^ EURIBOR (3M), Term SOFR (3M) and CD (91D) are approximately 3.909%, 5.331%, 3.820% respectively, as of December<br>31, 2023.
--- ---
^3^ The general loans are repayable in installments over 4 years after a three-year grace period.<br>
--- ---
(2) Repayment schedule of the Group’s debentures and borrowings including the portion of current liabilities<br>as of December 31, 2023, is as follows:
--- ---
(in millions of Korean won)
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Bonds Borrowings Total
In localcurrency In foreigncurrency Sub-<br><br><br>total In localcurrency In foreigncurrency Sub-<br><br><br>total
Jan. 1, 2024~Dec. 31, 2024 ~~W~~ 1,478,000 ~~W~~ 454,941 ~~W~~ 1,932,941 ~~W~~ 1,016,254 ~~W~~ 109,331 ~~W~~ 1,125,585 ~~W~~ 3,058,526
Jan. 1, 2025~Dec. 31, 2025 1,445,000 1,160,460 2,605,460 421,322 56,618 477,940 3,083,400
Jan. 1, 2026~Dec. 31, 2026 760,000 515,760 1,275,760 109,087 109,087 1,384,847
Jan. 1, 2027~Dec. 31, 2027 280,000 386,820 666,820 15,600 15,600 682,420
After Jan. 1, 2028 1,845,000 128,940 1,973,940 53,825 53,825 2,027,765
Total ~~W~~ 5,808,000 ~~W~~ 2,646,921 ~~W~~ 8,454,921 ~~W~~ 1,616,088 ~~W~~ 165,949 ~~W~~ 1,782,037 ~~W~~ 10,236,958

72

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

16. Provisions

Changes in provisions for the years ended December 31, 2023 and 2022, are as follows:

2023
(in millions of Korean won) Litigation Restoration cost Others Total
Beginning balance ~~W~~ 36,329 ~~W~~ 108,962 ~~W~~ 55,075 ~~W~~ 200,366
Increase (transfer) 592 26,381 10,656 37,629
Usage (7,179 ) (1,138 ) (6,391 ) (14,708 )
Reversal (35 ) (653 ) (2,096 ) (2,784 )
Scope change (177 ) (177 )
Others (393 ) 2,290 1,897
Ending balance ~~W~~ 29,707 ~~W~~ 133,159 ~~W~~ 59,357 ~~W~~ 222,223
Current ~~W~~ 29,130 ~~W~~ 26,945 ~~W~~ 59,134 ~~W~~ 115,209
Non-current 577 106,214 223 107,014
2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Litigation Restoration cost Others Total
Beginning balance ~~W~~ 80,165 ~~W~~ 107,358 ~~W~~ 69,874 ~~W~~ 257,397
Increase (transfer) 6,005 13,027 5,847 24,879
Usage (6,155 ) (8,143 ) (15,783 ) (30,081 )
Reversal (43,686 ) (3,685 ) (4,418 ) (51,789 )
Others 405 (445 ) (40 )
Ending balance ~~W~~ 36,329 ~~W~~ 108,962 ~~W~~ 55,075 ~~W~~ 200,366
Current 34,730 19,918 54,485 109,133
1Non-current ~~W~~ 1,599 ~~W~~ 89,044 ~~W~~ 590 ~~W~~ 91,233

73

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

17. Net Defined Benefit Liabilities (Assets)
(1) The amounts recognized in the statements of financial position as of December 31, 2023 and 2022, are<br>determined as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Present value of defined benefit obligations ~~W~~ 2,365,793 ~~W~~ 2,218,655
Fair value of plan assets (2,462,925 ) (2,478,143 )
Liabilities ~~W~~ 63,616 ~~W~~ 51,654
Assets ~~W~~ 160,748 ~~W~~ 311,142
(2) Changes in the defined benefit obligations for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Beginning ~~W~~ 2,218,655 ~~W~~ 2,494,930
Current service cost 213,489 238,068
Interest expense 103,874 59,041
Benefit paid (358,298 ) (316,047 )
Changes due to settlements of plan 1 (701 )
Remeasurements:
Actuarial gains and losses arising from changes in demographic assumptions 1,903 (13,048 )
Actuarial gains and losses arising from changes in financial assumptions 138,462 (323,501 )
Actuarial gains and losses arising from experience adjustments 48,174 80,845
Changes in scope of consolidation, etc. (467 ) (932 )
Ending ~~W~~ 2,365,793 ~~W~~ 2,218,655
(3) Changes in the fair value of plan assets for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Beginning ~~W~~ 2,478,143 ~~W~~ 2,314,632
Interest income 121,336 55,902
Remeasurements:
Return on plan assets (excluding amounts included in interest income) 9,410 (8,542 )
Benefits paid (307,762 ) (287,419 )
Employer contributions 165,128 401,358
Changes in scope of consolidation, etc. (3,330 ) 2,212
Ending ~~W~~ 2,462,925 ~~W~~ 2,478,143

74

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(4) Amounts recognized in the consolidated statement of profit or loss for the years ended December 31, 2023<br>and 2022, are as follows:
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Current service cost ~~W~~ 213,489 ~~W~~ 238,068
Net interest cost (17,462 ) 3,139
Changes due to settlements of plan 1 (701 )
Transfer out (13,435 ) (15,102 )
Total expenses ~~W~~ 182,593 ~~W~~ 225,404
(5) Principal actuarial assumptions used are as follows:
--- ---
December 31, 2023 December 31, 2022
--- --- ---
Discount rate 3.67%~5.51% 2.4%~6.29%
Salary growth rate 1.7%~8.96% 1.82%~8.9%
(6) The sensitivity of the defined benefit obligations as of December 31, 2023, to changes in the principal<br>assumptions is:
--- ---
(in percentage, in millions of Korean won) Effect on defined benefit obligation
--- --- --- --- --- --- --- --- ---
Changes inassumption Increase inassumption Decrease inassumption
Discount rate 0.5% point ~~W~~(139,461 ) ~~W~~ 150,568
Salary growth rate 0.5% point 145,687 (135,431 )

A decrease in corporate bond yields will increase plan liabilities, although this will be partially offset by an increase in the value of the plans’ bond holdings.

The above sensitivity analysis is based on changes in assumption while holding all other assumptions constant. In practice, this is unlikely to occur, and changes in some of the assumptions may be correlated. The sensitivity of the defined benefit obligation to changes in principal actuarial assumptions is calculated using the projected unit credit method, the same method applied when calculating the defined benefit obligations recognized on the statement of financial position.

The Group actively monitors how the duration and the expected yield of the investments match the expected cash outflows arising from the pension obligations. Expected contributions to post-employment benefit plans, for the year ending December 31, 2023, are ~~W~~ 273,503 million.

75

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(7) The expected maturity analysis of undiscounted pension benefits as of December 31, 2023, is as follows:<br>
(in millions of Korean won) Less than<br><br><br>1 year Between 1-2years Between 2-5years Over 5 years Total
--- --- --- --- --- --- --- --- --- --- ---
Pension benefits ~~W~~ 257,315 ~~W~~ 376,352 ~~W~~ 910,076 ~~W~~ 2,013,167 ~~W~~ 3,556,910
(8) The weighted average duration of the defined benefit obligations is 6.2 years.
--- ---
18. Defined Contribution Plan
--- ---

Recognized expense related to the defined contribution plan for the year ended December 31, 2023, is ~~W~~ 85,174 million (2022: ~~W~~ 72,576 million).

76

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

19. Commitments and Contingencies
(1) As of December 31, 2023, major commitments with local financial institutions are as follows:<br>
--- ---
(in millions of Korean won andforeign currencies in thousands) Financial institution
--- --- --- --- ---
Bank overdraft Kookmin Bank and others 374,000
Inter-Korean Cooperation Fund Export-Import Bank of Korea 37,700 1,480
Economic Cooperation Business Insurance Export-Import Bank of Korea 3,240 1,732
Collateralized loan on electronic accounts receivable-trade Kookmin Bank and others 545,350 42,822
Plus electronic notes payable Industrial Bank of Korea 50,000 885
Working capital loan Korea Development Bank<br>and others 1,562,800 142,700
Shinhan Bank 76,509 76,509
Woori Bank 7,700 7,700
Facility loans Shinhan Bank and others 924,000 429,924
Derivatives transaction limit Korea Development Bank<br>and others 1,970,000 1,970,000
Citi Bank 400,000 400,000
Total KRW 3,497,090 619,543
2,046,509 2,046,509
7,700 7,700
400,000 400,000

All values are in US Dollars.

(2) As of December 31, 2023, guarantees received from financial institutions are as follows:<br>
(in millions of Korean won and<br><br><br>foreign currencies in thousands) Financial institution
--- --- ---
Hana Bank Guarantee for payment in Korean currency 4,000
Comprehensive credit line and others 3,100
Guarantee for payment in foreign currency 59
Comprehensive credit line and others 10,300
Kookmin Bank Guarantee for payment in foreign currency 3,186
Shinhan Bank Guarantee for payment in Korean currency<br>and others 94,517
Guarantee for payment in foreign currency<br>and others 211,262
Woori Bank Guarantee for payment in Korean currency 5,200
Guarantee for payment in foreign currency 7,000
Korea Development Bank Refund guarantee for advances received 6,811
HSBC Guarantees for depositions 816
Seoul Guarantee Insurance Company Performance guarantee and others 366,395
Korea Software Financial Cooperative Performance guarantee and others 1,556,979
Korea Specialty Contractor Financial Cooperative Performance guarantee and others 135
Korea Housing Finance Corporation Performance guarantee and others 44,000
Korea Housing & Urban Guarantee<br>Corporation^1^ Performance guarantee and others 691,530
Information & Communication Financial Cooperative Performance guarantee and others 78,183
Total KRW 2,749,522
122,689
VND 211,262

All values are in US Dollars.

^1^ Inventory assets (~~W~~ 278,031 million) and investment properties (~~W~~ 283,688<br>million) are provided as collateral with commitment respectively, as of December 31, 2023.

77

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) As of December 31, 2023, guarantees provided by the Group to third parties are as follows:<br>
(in millions of Korean won)
--- --- --- --- --- --- --- --- ---
Subject to payment guarantees Creditor Limit Usedamount Period
KT Estate Inc Wonju Bando U-bora Mark Bridge Buyer Hana Bank 103,000 55,314 Aug. 5, 2022 ~<br> <br>Feb. 28, 2025
KT Engineering Co., Ltd.^1^ Gasan Solar Power Plant Inc. Shinhan Bank 4,700 364 Jan. 7, 2010 ~<br> <br>Jan. 8, 2025
KT Engineering Co., Ltd.^1^ Korea Cell Inc. Suhyup Bank 3,250 50 Feb. 17, 2014 ~<br> <br>Feb. 16, 2024
KT Engineering Co., Ltd.^1^ San-Ya Agricultural<br> <br>Association Corporation Suhyup Bank 3,250 51 Feb. 17, 2014 ~<br> <br>Feb. 16, 2024
KT Alpha Co., Ltd.<br><br><br>(KT Hitel Co., Ltd.) Cash payers T-commerce<br> <br>cash payers 821 Apr. 14, 2023 ~<br> <br>Apr. 12, 2024
Nasmedia Co., Ltd. Stockholders Association<br> <br>Members Korea Securities<br>Finance Corp 1,104 610
^1^ KT Engineering Co., Ltd., a subsidiary of the Group, is subject to payment, depending on the reimbursement of<br>principal debtor.
--- ---
(4) The Controlling Company is jointly and severally obligated with KT Sat Co., Ltd., a subsidiary, to pay KT Sat<br>Co., Ltd.’s liabilities incurred prior to spin-off. As of December 31, 2023, the Controlling Company and KT Sat Co., Ltd. are jointly and severally liable for reimbursement of ~~W~~<br>595 million.
--- ---
(5) For the year ended December 31, 2023, the Group entered into agreements with the Securitization Specialty<br>Companies (2023: First 5G 67^th^ to 72^th^ Securitization Specialty Co., Ltd., 2022: First 5G<br>61^st^ to 66^th^ Securitization Specialty Co., Ltd.) and disposed of its trade receivables related to handset sales. The Group also made asset<br>management agreements with each securitization specialty company and in accordance with the agreement, the Group will receive asset management fees upon liquidation of the securitization specialty company
--- ---

78

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(6) As of December 31, 2023, the Group is a defendant in 177 lawsuits with the total claimed amount of<br>~~W~~ 167,834 million (2022: ~~W~~ 80,279 million). As of December 31, 2023, litigation provisions of ~~W~~ 29,707 million for pending lawsuits and unasserted claims are recorded as liabilities<br>for potential loss in the ordinary course of business. The final outcomes of the cases cannot be estimated as of December 31, 2023.
(7) Under the agreement of bond issuance and borrowings, the Group is required to maintain certain financial ratios<br>such as debt-to-equity ratio, use the funds for the designated purpose and report to the creditors periodically. The covenant also contains restriction on provision of<br>additional collateral and disposal of certain assets.
--- ---
(8) As of December 31, 2023, the Group participates in Algerie Sidi Abdela new town development consortium<br>(percentage of ownership: 2.5%) and has joint liability with other consortium participants.
--- ---
(9) As of December 31, 2023, contract amount of property and equipment acquisition agreement made but not yet<br>recognized amounts to ~~W~~ 489,231 million (2022: ~~W~~ 1,294,823 million).
--- ---
(10) As of December 31, 2023, there are derivatives generated by the Group granting Drag-Along Right to<br>financial investors participating in paid-in capital increase of K Bank Inc. (Note 7).
--- ---
(11) The Group has an agreement with a transferor participated in share transfer agreement of MILLE Co., Ltd. As per<br>the conditions of the agreement, the transferor may exercise Put Option for the ordinary shares it owns (Note 7).
--- ---
(12) The Group entered into an agreement with financial investors of Epsilon Global Communications Pte. If certain<br>conditions are not met in the future as disclosed in the terms and conditions of the agreement, financial investors may exercise Tag-Along Right, Drag-Along Right and the right to sell shares for the<br>convertible preferred shares it owns (Note 7).
--- ---
(13) The Group has an obligation for additional contributions as per agreement to Future Innovation Private Equity<br>Fund No.3 and others. As of December 31, 2023, remaining amount of ~~W~~ 4,132 million and USD 30,350 thousand will be invested through the Capital Call method in the future
--- ---
(14) The Group has the amount of ~~W~~ 201,615 million (40%) of joint responsibility obligation<br>and ~~W~~ 302,423 million (60%) of obligation to provide financial support as a construction investor during the construction period with respect to K Defense Co., Ltd. established in accordance with the Private Investment Act on<br>Social Infrastructure. During the operating period, the Group has the amount of ~~W~~ 438,312 million (100%) of obligation to provide financial support as an operating investor.
--- ---
(15) During the prior period, the Group entered into a stock sale contract with HYUNDAI MOBIS and HYUNDAI MOTOR<br>COMPANY. If a certain period of time has elapsed from the date of the contract and the acquired stocks are to be disposed to a third party, HYUNDAI MOBIS and HYUND AI MOTOR COMPANY may exercise a preferential purchase right to designate a buyer with<br>priority.
--- ---

79

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(16) During the prior period, the Group entered into an agreement with LS Cable & System Ltd., which<br>participated in the stock acquisition contract of KT Submarine Co., Ltd (formerly KT Submarine Co., Ltd.). As per the agreement, the Group may exercise a put-option to LS Cable & System Ltd in the<br>future (Note 7).
(17) During the period, the Group entered into an agreement with equity investors which participated in the stock<br>acquisition contract of kt cloud Co., Ltd., Under the agreement, in specific occasion, equity investors may exercise a Tag-along or put-option to the Group in the<br>future.
--- ---
(18) The Group has the obligation of paying Minimum Guarantee as utilizing product bundling of Tving Co.,Ltd. and<br>the right to be paid certain proportion of the excess as per agreement.
--- ---
20. Leases
--- ---

Information of leases in which the Group is a lessee is as follows. Information when the Group is a lessor is described in Note 11.

(1) Amounts recognized in the consolidated statement of financial position

The consolidated statements of financial position shows the following amounts relating to leases:

(in millions of Korean won) December 31, 2023 December 31, 2022
Right-of-use<br>assets
Property and building ~~W~~ 1,019,537 ~~W~~ 1,081,067
Machinery and communication line facilities 89,150 50,794
Others 196,276 148,473
~~W~~ 1,304,963 ~~W~~ 1,280,334
Investment property (buildings) ~~W~~ ~~W~~
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Lease liabilities^1^
Current ~~W~~ 307,868 ~~W~~ 315,892
Non-current 872,042 856,146
~~W~~ 1,179,910 ~~W~~ 1,172,038
^1^ Included in the line item ‘other current liabilities and other<br>non-current liabilities’ in the consolidated statements of financial position (Note 9).
--- ---

For the years ended December 31, 2023 and 2022, Right-of-use assets related to leases increased by ~~W~~ 440,552 million and ~~W~~ 405,453 million, respectively.

80

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Amounts recognized in the consolidated statement of profit or loss

The consolidated statement of profit or loss relating to leases for the year ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Depreciation of<br>right-of-use assets
Property and building ~~W~~ 297,571 ~~W~~ 305,120
Machinery and communication line facilities 32,794 31,140
Others 72,372 59,954
~~W~~ 402,737 ~~W~~ 396,214
Depreciation of investment properties ~~W~~ ~~W~~ 15
Interest expense relating to lease liabilities 52,035 41,469
Expense relating to short-term leases 8,804 12,876
Expense relating to leases of low-value assets that are<br>not short-term leases 26,290 26,813
Expense relating to variable lease payments not included in lease liabilities 9,288 4,827

The total cash outflow for leases for the year ended December 31, 2023 is ~~W~~ 500,392 million (2022: ~~W~~ 464,337 million).

21. Share Capital

As of December 31, 2023 and 2022, the Group has 1,000,000,000 shares authorized to issue and details are as follows:

December 31, 2023 December 31, 2022
Number of<br><br><br>issued<br> <br>shares Par value<br><br><br>per share<br><br><br>(Korean won) Ordinary Shares<br><br><br>(in millions of<br><br><br>Korean won) Number of<br><br><br>issued<br> <br>shares Par value<br><br><br>per share<br><br><br>(Korean won) Ordinary shares<br><br><br>(in millions of<br><br><br>Korean won)
Ordinary shares ^1^ 257,860,760 ~~W~~ 5,000 ~~W~~ 1,564,499 261,111,808 ~~W~~ 5,000 ~~W~~ 1,564,499
^1^ The Group retired 55,039,007 treasury shares against retained earnings. Therefore, the ordinary shares amount<br>differs from the amount resulting from multiplying the number of shares issued.
--- ---

81

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

22. Retained Earnings

Details of retained earnings as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Legal reserve ^1^ ~~W~~ 782,249 ~~W~~ 782,249
Voluntary reserves ^2^ 4,651,362 4,651,362
Unappropriated retained earnings 9,060,819 8,823,732
Total ~~W~~ 14,494,430 ~~W~~ 14,257,343
^1^ The Commercial Code of the Republic of Korea requires the Controlling Company to appropriate, as a legal<br>reserve, an amount equal to a minimum of 10% of cash dividends paid until such reserve equals 50% of its issued share capital. The reserve is not available for the payment of cash dividends but may be transferred to share capital with the approval<br>of the Controlling Company’s Board of Directors or used to reduce accumulated deficit, if any, with the ratification of the Controlling Company’s majority shareholders.
--- ---
^2^ The reserves of research and development of human resources in other surplus reserves are separately<br>accumulated on disposal of retained earnings on tax filing adjustments when calculating income taxes in accordance with regulations of Tax Reduction and Exemption Control Act of Korea. Reversal of the reserves according to the relevant tax law can<br>be paid out as dividends
--- ---
23. Accumulated Other Comprehensive Income and Other Components of Equity
--- ---
(1) As of December 31, 2023 and 2022, the details of the Controlling Company’s accumulated other<br>comprehensive income, are as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Changes in investments in associates and joint ventures ~~W~~ 4,023 ~~W~~ (11,752 )
Loss on derivatives valuation (29,361 ) (7,109 )
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income 73,928 (52,100 )
Exchange differences on translation for foreign operations 3,817 (6,815 )
Total ~~W~~ 52,407 ~~W~~ (77,776 )

82

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Changes in accumulated other comprehensive income for the years ended December 31, 2023 and 2022, are as<br>follows:
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Beginning Increase(decrease) Reclassificationto<br><br><br>gain or loss Ending
Changes in investments in associates and joint ventures ~~W~~ (11,752 ) ~~W~~ 15,775 ~~W~~ ~~W~~ 4,023
Gain (loss) on derivatives valuation (7,109 ) 15,690 (37,942 ) (29,361 )
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income (52,100 ) 126,028 73,928
Exchange differences on translation for foreign operations (6,815 ) 10,632 3,817
Total ~~W~~ (77,776 ) ~~W~~ 168,125 ~~W~~ (37,942 ) ~~W~~ 52,407
(in millions of Korean won) 2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Increase(decrease) Reclassificationto<br><br><br>gain or loss Ending
Changes in investments in associates and joint ventures ~~W~~ (3,461 ) ~~W~~ (8,291 ) ~~W~~ ~~W~~ (11,752 )
Gain (loss) on derivatives valuation 25,031 63,281 (95,421 ) (7,109 )
Gain on valuation of financial assets at fair value through other comprehensive income 108,685 (160,785 ) (52,100 )
Exchange differences on translation for foreign operations (12,786 ) 5,971 (6,815 )
Total ~~W~~ 117,469 ~~W~~ (99,824 ) ~~W~~ (95,421 ) ~~W~~ (77,776 )
(3) The Group’s other components of equity, as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Treasury stock ~~W~~ (398,075 ) ~~W~~ (202,295 )
Gain or loss on disposal of treasury stock<br>^1^ 3,220 (41,503 )
Share-based compensation 8,773 6,222
Equity transactions within consolidated entities<br>^2^ (416,336 ) (334,576 )
Total ~~W~~ (802,418 ) ~~W~~ (572,152 )
^1^ The amount directly reflected in equity is ~~W~~ 101 million for the year ended<br>December 31, 2023 (2022: ~~W~~ 14,886 million).
--- ---
^2^ Profit or loss incurred from transactions with non-controlling interest<br>and investment difference incurred from change in proportion of subsidiaries are included.
--- ---

83

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(4) As of December 31, 2023 and 2022, the details of treasury stock, are as follows:
December 31, 2023 December 31, 2022
--- --- --- --- ---
Number of shares (in shares) 11,447,338 5,069,130
Amount (in millions of Korean won) ~~W~~ 398,075 ~~W~~ 202,295

Treasury stocks held as of December 31, 2023, are expected to be used for stock compensation for the Group’s directors, employees, and other purposes.

24. Share-Based Compensation
(1) Details of share-based compensation granted by the Controlling to executives and employees, including the CEO,<br>by the resolution of the Board of Directors for the years ended December 31, 2023 and 2022, are as follows:
--- ---
2023
--- ---
(in share) 17th grant
Grant date June 15, 2023, Oct 17, 2023
Grantee CEO, internal directors, external directors, executives
Vesting conditions Service condition: 1 year<br><br><br>Non-market performance condition: achievement of performance
Fair value per option<br>(in Korean won) ~~W~~ 30,205
Total compensation costs (in Korean won) ~~W~~ 7,262 million
Estimated exercise date (exercise date) During 2024
Valuation method Fair value method
2022
--- ---
(in share) 16th grant
Grant date June 9, 2022
Grantee CEO, internal directors, external directors, executives
Vesting conditions Service condition: 1 year<br><br><br>Non-market performance condition: achievement of performance
Fair value per option (in Korean won) ~~W~~ 36,941
Total compensation costs<br> <br>(in Koreanwon) ~~W~~ 9,442 million
Estimated exercise date During 2023
Valuation method Fair value method

84

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Changes in the number of stock options for the years ended December 31, 2023 and 2022, are as follows:<br>
(in share) 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Granted Expired Exercised^1^ Ending Number ofsharesexercisable
16th grant 258,509 (105,859 ) (131,690 ) 20,960
17th grant 307,182 307,182
Total 258,509 307,182 (105,859 ) (131,690 ) 328,142
(in share) 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Granted Expired Exercised^1^ Ending Number ofsharesexercisable
15th grant 284,209 (155,286 ) (128,923 )
16th grant 258,509 258,509
Total 284,209 258,509 (155,286 ) (128,923 ) 258,509
^1^ The weighted average price of ordinary shares at the time of exercise, during the year ended December 31,<br>2023, is ~~W~~ 29,550 (2022: ~~W~~ 35,450).
--- ---
25. Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities
--- ---
(1) The Group has recognized the following amounts relating to revenue in the statement of profit or loss:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Revenue from contracts with customers ~~W~~ 26,152,257 ~~W~~ 25,443,883
Revenue from other sources 224,016 206,128
Total ~~W~~ 26,376,273 ~~W~~ 25,650,011
(2) Operating revenues for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Services ~~W~~ 22,994,687 ~~W~~ 22,245,209
Sales of goods 3,381,586 3,404,802
Total ~~W~~ 26,376,273 ~~W~~ 25,650,011

Revenue from providing services are recognized over time, and sales of goods are recognized at a point in time. Revenues from construction commitments included in sales of goods are recognized using the percentage of completion method.

85

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) Contract assets and liabilities recognized in relation to the revenues from contracts with customers, are as<br>follows:
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Contract assets ^1^ ~~W~~ 1,130,745 ~~W~~ 963,133
Contract liabilities ^1^ 311,023 344,869
Deferred revenue ^2^ 81,067 81,653
^1^ The Group recognized contract assets of ~~W~~ 308,821million and contract liabilities of<br>~~W~~ 32,274 million for long-term construction contract as of December 31, 2023 (2022: contract assets of ~~W~~ 160,880 million and contract liabilities of ~~W~~ 60,762 million). The Group<br>recognizes contract assets as trade receivables and other receivables, and contract liabilities as other current liabilities.
--- ---
^2^ Deferred revenue recognized relating to government grant is excluded.
--- ---
(4) The contract costs recognized as assets are as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Incremental costs of obtaining a contract ~~W~~ 1,656,711 ~~W~~ 1,744,096
Cost of contract performance 70,757 73,582

As of December 31, 2023, the Group recognized contract assets in the amount of ~~W~~ 1,759,586 million as operating expenses (2022: ~~W~~ 1,793,013 million).

(5) For the years ended December 31, 2023 and 2022, revenue recognized from carried-forward contract<br>liabilities and deferred revenue from prior year, is as follows:
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Revenue recognized that was included in the contract liabilities balance at the beginning of the<br>year
Allocation of the transaction price ~~W~~ 213,609 ~~W~~ 246,843
Deferred revenue of joining/installment fee 41,824 44,204
Total ~~W~~ 255,433 ~~W~~ 291,047

86

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

26. Operating Expenses
(1) Operating expenses for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Employee Benefit Cost ~~W~~ 4,549,409 ~~W~~ 4,495,885
Depreciation 2,723,610 2,637,463
Depreciation of<br>right-of-use assets 402,737 396,214
Amortization of intangible assets 683,784 622,202
Commissions 1,264,729 1,295,434
Interconnection charges 436,598 479,500
International interconnection fees 140,433 186,253
Purchase of inventories 3,595,345 3,656,040
Changes of inventories (203,071 ) (195,046 )
Sales promotion and sales commission 2,353,318 2,353,909
Service costs 2,237,132 2,334,386
Utilities 544,675 368,348
Taxes and dues 250,651 276,962
Rent 167,576 160,848
Insurance premiums 66,737 68,245
Installation fees 174,238 150,140
Advertising expenses 153,750 195,519
Bad debt expenses 150,549 115,358
Card service costs 3,189,376 3,127,673
Others 1,844,923 1,234,590
Total ~~W~~ 24,726,499 ~~W~~ 23,959,923
(2) Details of employee benefits for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Short-term employee benefits ~~W~~ 4,225,459 ~~W~~ 4,161,874
Post-employment benefits (defined benefits) 182,593 225,404
Post-employment benefits (defined contributions) 85,174 72,576
Share-based compensation 15,450 16,799
Others 40,733 19,232
Total ~~W~~ 4,549,409 ~~W~~ 4,495,885

87

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

27. Other Income and Other Expenses
(1) Other income for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Gain on disposal of property and equipment and investment properties ~~W~~ 22,447 ~~W~~ 52,603
Gain on disposal of intangible assets 1,727 622
Gain on disposal of<br>right-of-use assets 3,580 3,326
Compensation on property and equipment 152,712 159,849
Gain on government subsidies 40,725 44,473
Gain on disposal of investments in associates 6,982 38,319
Gain on disposal of investments in subsidiaries 28,825 216,591
Others 51,046 79,568
Total ~~W~~ 308,044 ~~W~~ 595,351
(2) Other expenses for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Loss on disposal of property and equipment ~~W~~ 72,710 ~~W~~ 81,415
Loss on disposal of intangible assets 5,328 7,015
Loss on disposal of<br>right-of-use assets 2,115 2,348
Loss on disposal of investments in associates 295
Impairment loss on property and equipment 7,871 16,094
Impairment loss on intangible assets 236,206 30,965
Donations 24,664 15,642
Other allowance for bad debts 34,112 17,551
Others 124,898 143,282
Total ~~W~~ 507,904 ~~W~~ 314,607

88

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

28. Finance Income and Costs
(1) Details of finance income for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Interest income ~~W~~ 279,607 ~~W~~ 271,925
Gain on foreign currency transactions 27,407 67,976
Gain on foreign currency translation 11,944 43,092
Gain on derivative transactions 12,304 50,668
Gain on valuation of derivatives 49,881 182,998
Gain on disposal of trade receivables 3,441
Gain on valuation of financial instruments 32,477 31,032
Others 69,216 42,737
Total ~~W~~ 486,277 ~~W~~ 690,428
(2) Details of finance costs for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Interest expenses ~~W~~ 356,345 ~~W~~ 293,854
Loss on foreign currency transactions 34,281 81,171
Loss on foreign currency translation 95,730 200,109
Loss on derivative transactions 417 24,331
Loss on valuation of derivatives 6,598 21,601
Loss on disposal of trade receivables 17,980 62,697
Loss on valuation of financial instruments 55,049 65,660
Others 2,282 485
Total ~~W~~ 568,682 ~~W~~ 749,908

89

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

29. Deferred Income Tax and Income Tax Expense
(1) Deferred tax assets and deferred tax liabilities as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Deferred tax assets
Deferred tax assets to be recovered within 12 months ~~W~~ 404,234 ~~W~~ 398,710
Deferred tax assets to be recovered after more than 12 months 1,818,523 1,907,043
Deferred tax assets before offsetting 2,222,757 2,305,753
Deferred tax liabilities
Deferred tax liabilities to be recovered within 12 months ~~W~~ (491,817 ) ~~W~~ (586,522 )
Deferred tax liabilities to be recovered after more than 12 months (2,116,346 ) (2,108,438 )
Deferred tax liabilities before offsetting (2,608,163 ) (2,694,960 )
Deferred tax assets after offsetting ~~W~~ 608,924 ~~W~~ 578,443
Deferred tax liabilities after offsetting ~~W~~ 994,330 ~~W~~ 967,650
(2) The movement in deferred income tax assets and liabilities as of December 31, 2023 and 2022, before taking<br>into consideration the offsetting of balances, is as follows:
--- ---
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Statement ofprofit or loss Othercomprehensiveincome Ending
Deferred tax liabilities
Investments in subsidiaries, associates and joint ventures (255,184 ) (7,821 ) (7,225 ) (270,230 )
Depreciation and impairment loss (151,433 ) 39,309 (112,124 )
Plan assets (542,900 ) 8,367 826 (533,707 )
Advanced depreciation provision (521,939 ) 3,859 (518,080 )
Contract assets (424,302 ) 2,478 (421,824 )
Financial assets at fair value through profit or loss (420 ) 461 43 84
Financial assets at fair value through other comprehensive income (60,629 ) (53 ) (41,945 ) (102,627 )
Others (738,153 ) 90,876 (2,378 ) (649,655 )
Total ~~W~~ (2,694,960 ) ~~W~~ 137,476 ~~W~~ (50,679 ) ~~W~~ (2,608,163 )
Deferred tax assets
Depreciation and impairment loss 188,832 (71,689 ) (397 ) 116,746
Contract liabilities 121,289 (9,311 ) 111,978
Defined benefit liabilities 481,858 (6,705 ) 40,838 515,991
Provisions 151,955 (5,784 ) 146,171
Others 1,258,848 (58,388 ) 2,141 1,202,601
Total ~~W~~ 2,202,782 ~~W~~ (151,877 ) ~~W~~ 42,582 ~~W~~ 2,093,487
Temporary difference, net (492,178 ) (14,401 ) (8,097 ) (514,676 )
Tax credit carryforwards 102,971 26,299 129,270
Total net balance ~~W~~ (389,207 ) ~~W~~ 11,898 ~~W~~ (8,097 ) ~~W~~ (385,406 )

90

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) 2022
Beginning Statement ofprofit or loss Othercomprehensiveincome Ending
Deferred tax liabilities
Investments in associates and joint ventures (240,633 ) (18,299 ) 3,748 (255,184 )
Depreciation and impairment loss (88,588 ) (62,845 ) (151,433 )
Plan assets (538,928 ) (5,294 ) 1,322 (542,900 )
Advanced depreciation provision (339,005 ) (182,934 ) (521,939 )
Contract assets (493,917 ) 69,615 (424,302 )
Financial assets at fair value through profit or loss (336 ) (73 ) (11 ) (420 )
Financial assets at fair value through other comprehensive income (47,521 ) (71,396 ) 58,288 (60,629 )
Others (623,744 ) (111,135 ) (3,274 ) (738,153 )
Total ~~W~~ (2,372,672 ) ~~W~~ (382,361 ) ~~W~~ 60,073 ~~W~~ (2,694,960 )
Deferred tax assets
Depreciation and impairment loss 225,821 (36,989 ) 188,832
Contract liabilities 148,454 (27,165 ) 121,289
Defined benefit liabilities 571,336 (22,423 ) (67,055 ) 481,858
Provisions 172,871 (20,894 ) (22 ) 151,955
Others 899,543 350,670 8,635 1,258,848
Total ~~W~~ 2,018,025 ~~W~~ 243,199 ~~W~~ (58,442 ) ~~W~~ 2,202,782
Temporary difference, net (354,647 ) (139,162 ) 1,631 (492,178 )
Tax credit carryforwards 134,417 (31,446 ) 102,971
Total net balance ~~W~~ (220,230 ) ~~W~~ (170,608 ) ~~W~~ 1,631 ~~W~~ (389,207 )

91

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) The tax impacts recognized directly to equity as of December 31, 2023 and 2022, are as follows:<br>
December 31, 2023 December 31, 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Beforerecognition Tax effect Afterrecognition Beforerecognition Tax effect Afterrecognition
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income ~~W~~ 163,750 ~~W~~ (41,945 ) ~~W~~ 121,805 ~~W~~ (216,862 ) ~~W~~ 58,288 ~~W~~ (158,574 )
Gain (loss) on valuation of hedge instruments (30,168 ) 7,555 (22,613 ) (42,510 ) 11,180 (31,330 )
Remeasurements of net defined benefit liabilities (179,129 ) 41,664 (137,465 ) 247,162 (65,733 ) 181,429
Share of gain of associates and joint ventures, and others 28,715 (7,225 ) 21,490 (14,931 ) 3,748 (11,183 )
Exchange differences on translation for foreign operations 32,376 (8,146 ) 24,230 23,316 (5,852 ) 17,464
Gain or loss on disposal of treasury stock 402 (101 ) 301 (59,308 ) 14,886 (44,422 )
Total ~~W~~ 15,946 ~~W~~ (8,198 ) ~~W~~ 7,748 ~~W~~ (63,133 ) ~~W~~ 16,517 ~~W~~ (46,616 )
(4) Details of income tax expense for the years ended December 31, 2023 and 2022, are calculated as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- ---
Current income tax expenses ~~W~~ 347,265 ~~W~~ 335,796
Impact of change in temporary difference (11,898 ) 170,608
Income tax expense ~~W~~ 335,367 ~~W~~ 506,404

92

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(5) The relationship between the Group’s profit before tax and income tax expense for the years ended<br>December 31, 2023 and 2022, is as follows:
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Profit before income tax ~~W~~ 1,324,085 ~~W~~ 1,894,066
Expected tax expense at statutory tax rate ~~W~~ 339,196 ~~W~~ 510,506
Tax effect:
Income not taxable for tax purposes (30,106 ) (47,550 )
Expenses not deductible for tax purposes 26,723 53,398
Tax credit and deductions (78,459 ) (54,895 )
Others 78,013 44,945
Income tax expense ~~W~~ 335,367 ~~W~~ 506,404
(6) Details of deferred tax assets and liabilities that are not recognized as of December 31, 2023 and 2022,<br>are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Deductible temporary differences
Investment in subsidiaries, associates, and joint ventures ~~W~~ 3,520,173 ~~W~~ 3,384,295
Unused tax loss 203,200 103,326
Unused Tax credit 2,338 1,988
Others 437,238 387,084
Total ~~W~~ 4,162,949 ~~W~~ 3,876,693
Taxable temporary differences
Investment in subsidiaries, associates, and joint ventures ~~W~~ 903,394 ~~W~~ 857,076
Others 211,201 216,660
Total ~~W~~ 1,114,595 ~~W~~ 1,073,736
(7) The expected period of expiry for unused tax losses not recognized in deferred tax assets as of<br>December 31, 2023 and 2022, is as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Less than 1 year 4,484 72,512
1~5 years 11,936 13,358
5~10 years 8,745 12,021
More than 10 years 178,035 5,435
Total ~~W~~ 203,200 ~~W~~ 103,326

93

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

30. Earnings per Share
(1) Basic Earnings per Share
--- ---

Basic earnings per share is calculated by dividing the profit from operations attributable to the ordinary shares by the weighted average number of ordinary shares outstanding during the period, excluding ordinary shares held by the Group as treasury stock.

Basic earnings per share from operations for the years ended December 31, 2023 and 2022, is calculated as follows:

2023 2022
Profit attributable to ordinary shares of owners of the Controlling Company (in millions ofKorean won) ~~W~~ 1,008,715 ~~W~~ 1,261,714
Weighted average number of ordinary shares outstanding (in number of shares) 249,470,072 242,235,332
Basic earnings per share (in Korean won) ~~W~~ 4,043 ~~W~~ 5,209

Diluted earnings per share from operations is calculated by adjusting the weighted average number of ordinary shares outstanding to assume conversion of all dilutive potential ordinary shares. The Group has dilutive potential ordinary shares from convertible bond and other share-based compensation.

(2) Diluted Earnings per Share

Diluted earnings per share from operations is calculated by adjusting the weighted average number of ordinary shares outstanding assuming that all dilutive potential ordinary shares are converted into ordinary shares. The Group has dilutive potential ordinary shares from convertible bonds, convertible preferred stock and other share-based payments:

2023 2022
Profit attributable to ordinary shares (in millions of Korean won) ~~W~~ 1,008,715 ~~W~~ 1,261,714
Diluted profit attributable to ordinary shares (in millions of Korean won) ~~W~~ 1,007,888 ~~W~~ 1,261,218
Number of dilutive potential ordinary shares outstanding (in number of shares) 119,263 91,931
Weighted average number of ordinary shares outstanding (in number of shares) 249,589,335 242,327,263
Diluted earnings per share (in Korean won) ~~W~~ 4,038 ~~W~~ 5,205

94

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Diluted earnings per share is earnings per outstanding of ordinary shares and dilutive potential ordinary shares. Diluted earnings per share is calculated by dividing adjusted profit for the year by the sum of the number of ordinary shares and dilutive potential ordinary shares. Convertible bonds and convertible preferred stocks without dilutive effects are excluded from the calculation.

31. Dividend

The dividends paid by the Group in 2023 were ~~W~~ 501,844 million (~~W~~ 1,960 per share). The dividends paid by the Group in 2022 were ~~W~~ 450,394 million (~~W~~ 1,910 per share). A dividend in respect of the year ended December 31, 2023, of ~~W~~ 1,960 per share, amounting to a total dividend of ~~W~~ 482,970 million, is to be proposed at the shareholders’ meeting on March 28, 2024.

95

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

32. Cash Generated from Operations
(1) Cash flows from operating activities for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
1. Profit for the year ~~W~~ 988,718 ~~W~~ 1,387,663
2. Adjustments for:
Income tax expense 335,367 506,404
Interest income^1^ (392,580 ) (340,794 )
Interest expense^1^ 410,566 320,914
Dividends income^2^ (59,758 ) (14,121 )
Depreciation 2,773,152 2,687,191
Amortization of intangible assets 691,909 627,261
Depreciation of<br>right-of-use assets 402,737 396,214
Provisions for post-employment benefits (defined benefits) 196,027 240,506
Allowance for bad debts 175,244 132,102
Share of net profit or loss of associates and joint Ventures 44,323 16,821
Gain and loss on disposal of associates and joint ventures (6,982 ) (38,024 )
Profits and loss on the disposal of subsidiaries (28,825 ) (216,591 )
Loss (gain) on disposal of property and equipment, and investment in properties^3^ 511 (66,317 )
Impairment loss on property and equipment, and investment in properties 7,871 16,094
Gain on disposal of<br>right-of-use assets (1,465 ) (978 )
Loss on disposal of intangible assets 3,601 6,393
Impairment loss on intangible assets 236,106 30,674
Loss on foreign currency translation 83,899 157,017
Gain on valuation of derivatives, net (37,249 ) (205,381 )
Loss (gain) on disposal of financial assets at amortized cost 1 3
Gain on disposal of financial assets at fair value through profit or loss (2,225 ) (2,347 )
Loss on valuation of financial assets at fair value through profit or loss^4^ 13,920 44,833
Others 158,820 (49,891 )
3. Changes in operating assets and liabilities
Increase in trade receivables (124,023 ) (43,787 )

96

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Increase in other receivables (1,085,527 ) (1,598,216 )
Increase in other current assets 250,569 (101,947 )
Increase in other non-current Assets (81,101 ) (120,055 )
Increase in inventories (249,923 ) (170,773 )
Increase (decrease) in trade payables 121,515 (368,355 )
Increase in other payables 829,220 1,103,113
Increase (decrease) in other current liabilities 314,208 (30,375 )
Decrease in other non-current liabilities (3,117 ) (12,171 )
Decrease in provisions (5,083 ) (22,115 )
Increase (decrease) in deferred revenue 905 (384 )
Increase in plan assets 115,725 (90,771 )
Payment of post-employment benefits (defined benefits) (329,861 ) (343,931 )
4. Cash generated from operations (1+2+3) ~~W~~ 5,747,195 ~~W~~ 3,835,879
^1^ Subsidiaries such as BC Card Co., Ltd. recognize interest income and expense as operating revenue and expense,<br>respectively. Interest income of ~~W~~ 112,973 million (2022: ~~W~~ 68,869 million) recognized as operating revenue and interest expense of ~~W~~ 55,677 million (2022: ~~W~~ 27,060<br>million) recognized as operating expense, for the year ended December 31, 2023, are included in the adjustment.
--- ---
^2^ BC Card Co., Ltd. recognized dividend income as operating revenue. Dividend income of ~~W~~<br>1,759 million that is recognized as operating revenue for the year ended December 31, 2023 (2022: ~~W~~ 2,299 million) is included in the adjustment.
--- ---
^3^ Gain and loss on disposal of investment properties of KT Estate Inc. are presented as operating revenue and<br>operating expense, respectively. Gain on disposal of investment properties amounting to ~~W~~ 49,752 million, recognized as operating revenue for the year ended December 31, 2023, is included.
--- ---
^4^ Subsidiaries such as KT Investment Co., Ltd. recognized gain and loss on valuation of financial assets at fair<br>value through profit or loss as operating revenue and expense, respectively. Loss on valuation of financial assets at fair value through profit or loss of ~~W~~ 11,112 million that is recognized as operating expense, for the year<br>ended December 31, 2023, is included in the adjustment.
--- ---

97

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Significant transactions not affecting cash flows for the years ended December 31, 2023 and 2022, are as<br>follows:
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Reclassification of current portion of borrowings ~~W~~ 1,731,998 ~~W~~ 1,004,818
Reclassification of<br>construction-in-progress to property and equipment 3,123,611 3,167,965
Reclassification of non-trade payable from property and<br>equipment (293,448 ) (7,055 )
Reclassification of non-trade payable from intangible<br>assets (276,491 ) (197,389 )
Reclassification of non-trade payables from defined<br>benefit liabilities 26,246 (32,417 )
Reclassification of non-trade payable from plan<br>assets (24,821 ) 28,532
Disposal of treasury stock related to acquisition of financial assets 747,161
Acquisition of financial assets related to disposal of a subsidiary 250,000

98

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

33. Changes in Liabilities Arising from Financing Activities

Details of changes in liabilities arising from financing activities, liabilities related to cashflow to be classified as future financing activities, for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023
Beginning Cash flows Others
Newlyacquired Changes inFX rate Fair valuechanges Others Ending
Borrowing ~~W~~ 10,006,685 ~~W~~ 106,118 ~~W~~ ~~W~~ 45,370 ~~W~~ 1,719 ~~W~~ 58,273 ~~W~~ 10,218,165
Lease liabilities 1,172,038 (407,051 ) 460,617 24 (45,719 ) 1,179,909
Derivative liabilities 33,555 10,888 9,643 (29,539 ) 24,547
Derivative assets (190,830 ) 48,183 32,487 1,788 (50,839 ) (159,211 )
Total ~~W~~ 11,021,448 ~~W~~ (252,750 ) ~~W~~ 460,617 ~~W~~ 88,745 ~~W~~ 13,174 ~~W~~ (67,824 ) ~~W~~ 11,263,410
(in millions of Korean won) 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Cash flows Others
Newlyacquired Changes inFX rate Fair valuechange Changes inconsolidationscope Others Ending
Borrowing ~~W~~ 8,437,703 ~~W~~ 1,391,321 ~~W~~ ~~W~~ 146,108 ~~W~~ 939 ~~W~~ ~~W~~ 30,614 ~~W~~ 10,006,685
Lease liabilities 1,159,369 (378,684 ) 427,398 (36,045 ) 1,172,038
Derivative liabilities 75,176 (41,197 ) 19,858 12,941 (33,223 ) 33,555
Derivative assets (99,453 ) 76,280 (754 ) (147,161 ) 30,341 (50,083 ) (190,830 )
Total ~~W~~ 9,572,795 ~~W~~ 1,047,720 ~~W~~ 426,644 ~~W~~ 18,805 ~~W~~ 44,221 ~~W~~ ~~W~~ (88,737 ) ~~W~~ 11,021,448

99

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

34. Segment Information
(1) The management of the Group determines the operating segments based on the reported information when<br>establishing the business strategy.
--- ---
Details Business service
--- ---
ICT Mobile/fixed line telecommunication service and convergence business, B2B business and others
Finance Credit card business
Satellite TV Satellite TV business
Real estate Residential building development and supply
Others IT, facility security, global business, and others
(2) Details of each segment for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- ---
Operating<br><br><br>revenues Operating<br><br><br>income Depreciation<br><br><br>andamortization ^1^
ICT ~~W~~ 18,371,437 ~~W~~ 1,185,392 ~~W~~ 3,183,408
Finance 3,720,859 92,199 37,150
Satellite TV 708,217 44,482 52,871
Real estate 583,504 89,959 70,653
Others 8,118,542 240,049 584,738
31,502,559 1,652,081 3,928,820
Elimination (5,126,286 ) (2,307 ) (118,689 )
Consolidated amount ~~W~~ 26,376,273 ~~W~~ 1,649,774 ~~W~~ 3,810,131
(in millions of Korean won) 2022
Operating<br><br><br>revenues Operating<br><br><br>income Depreciation<br><br><br>andamortization ^1^
ICT ~~W~~ 18,289,243 ~~W~~ 1,168,103 ~~W~~ 3,105,807
Finance 3,613,981 121,461 47,638
Satellite TV 704,928 50,600 58,413
Real estate 485,056 118,953 65,457
Others 7,708,737 259,082 575,035
30,801,945 1,718,199 3,852,350
Elimination (5,151,934 ) (28,111 ) (196,471 )
Consolidated amount ~~W~~ 25,650,011 ~~W~~ 1,690,088 ~~W~~ 3,655,879
^1^ Sum of the amortization of property and equipment, intangible assets, investment properties and right-of-use assets.
--- ---

100

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) Operating revenues for the years ended December 31, 2023 and 2022, and<br>non-current assets as of December 31, 2023 and 2022, by geographical regions, are as follows:
(in millions of Korean won) Operating revenues Non-current assets ^1^
--- --- --- --- --- --- --- --- ---
Location December 31,2023 December 31,2022 December 31,2023 December 31,2022
Domestic ~~W~~ 26,206,763 ~~W~~ 25,490,154 ~~W~~ 20,725,694 ~~W~~ 20,845,214
Overseas 169,510 159,857 183,344 270,490
Total ~~W~~ 26,376,273 ~~W~~ 25,650,011 ~~W~~ 20,909,038 ~~W~~ 21,115,704
^1^ Sum of property and equipment, intangible assets, investment properties and right-of-use assets.
--- ---
35. Related Party Transactions
--- ---
(1) The list of related party of the Group as of December 31, 2023, is as follows:
--- ---
Relationship Name of Entity
--- ---
Associates and joint ventures 54 entities such as K Bank Inc., KIF Investment Fund, and Megazone Cloud Corporation
Others<br>^1^ Goody Studio Co., Ltd., Rebellion Inc., Digital Pharm Co., Ltd., Mastern No.127 Logispoint Daegu Co., Ltd., KORAMKO No. 143 General Private Real Estate Investment Company
^1^ Despite the significant influence, treated as investment changes in FV under IFRS 9 instead of using equity<br>method.
--- ---
(2) Outstanding balances of receivables and payables in relations to transactions with related parties as of<br>December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Receivables Payables
Tradereceivables Otherreceivables Lease<br><br><br>receivables Tradepayables Otherpayables Lease<br><br><br>liabilities
Associates and<br><br><br>joint ventures K Bank, Inc. ~~W~~ 862 ~~W~~ 326,006 ~~W~~ 769 ~~W~~ ~~W~~ 299 ~~W~~
Little Big Pictures 232 3,473 9 6
K-Realty 11th Real Estate Investment Trust Company 110 1,283 6,732
K-Realty No.3 Real Estate General Private Placement Investment Company 4,576
Others 2,044 162 2,900 3,029
Total ~~W~~ 7,824 ~~W~~ 330,924 ~~W~~ 769 ~~W~~ 2,909 ~~W~~ 3,334 ~~W~~ 6,732

101

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Receivables Payables
Tradereceivables Otherreceivables Tradepayables Otherpayables Lease<br><br><br>liabilities
Associates and<br><br><br>joint ventures K Bank, Inc. ~~W~~ 682 ~~W~~ 258,999 ~~W~~ ~~W~~ 299 ~~W~~
Little Big Pictures 1,454 7,645 9
K-Realty 11th Real Estate Investment Trust Company 151 1,283 8,824
Others 2,285 2 3,235 2,932
Total ~~W~~ 4,572 ~~W~~ 267,929 ~~W~~ 3,235 ~~W~~ 3,240 ~~W~~ 8,824
(3) Significant transactions with related parties for the years ended December 31, 2023 and 2022, are as<br>follows:
--- ---
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Sales Purchases Acquisitionofright-of-useassets
Relationship Name of Entity Operatingrevenue Other<br><br><br>income Operatingexpenses Others^1^
Associates<br><br><br>and<br><br><br>joint ventures K Bank, Inc. ~~W~~ 22,701 ~~W~~ ~~W~~ 13,429 ~~W~~ ~~W~~
HD Hyundai Robotics Co., Ltd. (formerly Hyundai Robotics Co., Ltd.) 78 182 7
K-Realty 11th Real Estate Investment Trust Company 146 200 2,559
K-Realty No.3 Real Estate General Private Placement Investment Company 6,084 132
Others^2 3^ 20,515 793 42,032 137
Others Digital Pharm Co., Ltd. 1
Total ~~W~~ 49,525 ~~W~~ 1,125 ~~W~~ 58,202 ~~W~~ 137 ~~W~~ 7
^1^ Amounts include acquisition of property and equipment, and others.
--- ---
^2^ Includes transactions of the entity before it was excluded as an associate and joint venture of the Group.<br>
--- ---
^3^ Includes transactions of FUNDA Co., Ltd, Maruee Limited Company Specializing in the Cultural Industry, Mastern<br>No.127 Logispoint Daegu Co., Ltd. before it was excluded as associates and joint ventures of the Group.
--- ---

102

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) 2022
Sales Purchases Acquisitionof right-of-<br>use assets
Relationship Name of Entity Operatingrevenue Other<br><br><br>income Operatingexpenses Others^1^
Associates<br><br><br>and<br><br><br>joint ventures K- Realty CR-REITs No.1 ^2^ ~~W~~ ~~W~~ ~~W~~ ~~W~~ ~~W~~
K Bank, Inc. 29,536 11,007
Hyundai Robotics Co., Ltd.^1^ 94 629 3,170
K-Realty 11th Real Estate Investment Trust Company 141 189 1,674 1,966
Others^3^ 10,226 1,738 35,435 2,307
Others Digital Pharm Co., Ltd. 1
Total ~~W~~ 39,998 ~~W~~ 1,927 ~~W~~ 48,745 ~~W~~ 5,477 ~~W~~ 1,966
^1^ Amounts include acquisition of property and equipment, and others.
--- ---
^2^ Includes transactions of the entity before it was excluded as an associate and joint venture of the Group.<br>
--- ---
^3^ Includes transactions of StorySoop Inc. before it was excluded as associates and joint ventures of the Group.<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- ---
Financeincome Financecosts Dividend<br><br><br>Income Financeincome Financecosts Dividend<br><br><br>income
Associates<br><br><br>and<br><br><br>joint ventures K Bank, Inc. ~~W~~ 8,264 ~~W~~ ~~W~~ ~~W~~ 3,052 ~~W~~ ~~W~~
K- Realty CR-REITs No.1 45,549
K-Realty 11th Real Estate Investment Trust Company 261 507 260 162
Others^1, 2^ 1,279 9,158
Total ~~W~~ 8,264 ~~W~~ 261 ~~W~~ 1,786 ~~W~~ 3,052 ~~W~~ 260 ~~W~~ 54,869
^1^ Includes transactions of the entity before it was excluded as an associate and joint venture of the Group.<br>
--- ---
^2^ Includes transactions of FUNDA Co., Ltd, Maruee Limited Company Specializing in the Cultural Industry, Mastern<br>No.127 Logispoint Daegu Co., Ltd. before they were excluded as associates and joint ventures of the Group.
--- ---
(4) Key management compensation for the years ended December 31, 2023 and 2022, consists of:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Salaries and other short-term benefits ~~W~~ 1,494 ~~W~~ 1,855
Post-employment benefits 153 294
Share-based compensation 569 976
Total ~~W~~ 2,216 ~~W~~ 3,125

103

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(5) Fund transactions with related parties for the years ended December 31, 2023 and 2022, are as follows:<br>
(in millions of Korean won) 2023
--- --- --- --- --- --- ---
Borrowing transactions^1^ Equitycontributionsin cash
Borrowings Repayments
Associates and joint ventures
K-Realty 11th Real Estate Investment Trust<br>Company ~~W~~ ~~W~~ 1,037 ~~W~~
STIC Place General Private Placement Real Estate Investment Trust No.2 20,000
Telco Credit Bureau Co.,Ltd. 6,500
Pacific geumto no.75 private hybrid asset fund 19,000
Kiamco Data Center Blind Fund 15,000
STIC Mixed Asset Investment Trust No. 1 10,930
Others ^2^ 31,107
Others
Rebellions Co.,Ltd. 19,998
Total ~~W~~ ~~W~~ 1,037 ~~W~~ 122,535
^1^ Lease transactions are included in borrowing transactions.
--- ---
^2^ Transactions with Daemuga Culture Industry Specialist Limited Company and Maruee Culture Industry Specialist<br>Limited Company until the date that they were excluded from associates are included.
--- ---
(in millions of Korean won) 2022
--- --- --- --- --- --- ---
Borrowing transactions^1^ Equitycontributionsin cash
Borrowings Repayments
Associates and joint ventures
Megazone Cloud Corporation ~~W~~ 30,000 ~~W~~ ~~W~~ 130,001
IBK-KT Emerging Digital Industry Investment Fund 10,800
Mastern KT Multi-Family Real Estate Private Equity Investment Fund I 18,859
IGIS No. 468-1 General Private Real Estate Investment<br>Company 25,000
K-Realty 11th Real Estate Investment Trust<br>Company 1,916 771
Others 93,478
Total ~~W~~ 31,916 ~~W~~ 771 ~~W~~ 278,138
1 Lease transactions are included in borrowing transactions.
--- ---
(6) Provision of collateral and investment agreement and others
--- ---

The Group has an obligation according to invest agreements with related parties such as Kiamco Data Center Blind Fund. As of December 31, 2023 the Group has a plan to make an additional investment of ~~W~~ 107,774 million.

104

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(7) As of December 31, 2023, the limit of the credit card contract provided by the Group to K Bank, Inc. is<br>~~W~~ 1,050 million (December 31, 2022: ~~W~~ 1,000 million).
36. Financial Risk Management
--- ---
(1) Financial Risk Factors
--- ---

The Group’s activities expose it to a variety of financial risks: market risk, credit risk and liquidity risk. The Group’s overall risk management program focuses on the unpredictability of financial markets and seeks to minimize potential adverse effects on the Group’s financial performance. The Group uses derivative financial instruments to hedge certain risk exposures such as cash flow risk.

The Group’s financial policy is set up in the long-term perspective and annually reported to the Board of Directors. The financial risk management is carried out by the Value Management Office, which identifies, evaluates and hedges financial risks. The treasury department in the Value Management Office considers various finance market conditions to estimate the effect from the market changes.

1) Market risk

The Group’s market risk management focuses on controlling the extent of exposure to the risk in order to minimize revenue volatility. Market risk is a risk that decreases value or profit of the Group’s portfolio due to changes in market interest rate, foreign exchange rate and other factors.

(i) Sensitivity analysis

Sensitivity analysis is performed for each type of market risk to which the Group is exposed. Reasonably possible changes in the relevant risk variable such as prevailing market interest rates, currency rates, equity prices or commodity prices are estimated and if the rate of change in the underlying risk variable is stable, the Group does not alter the chosen reasonably possible change in the risk variable. The reasonably possible change does not include remote or ‘worst case’ scenarios or ‘stress tests’.

(ii) Foreign exchange risk

The Group is exposed to foreign exchange risk arising from operating, investing and financing activities. Foreign exchange risk is managed within the range of the possible effect on the Group’s cash flows. Foreign exchange risk (i.e. foreign currency translation of overseas operating assets and liabilities) unaffecting the Group’s cash flows is not hedged but can be hedged at a particular situation.

105

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

As of December 31, 2023 and 2022, if the foreign exchange rate had strengthened or weakened by 10% with all other variables held constant, the effects on profit before income tax and equity would have been as follows:

(in millions of Korean won) Fluctuation of<br><br><br>foreign exchange rate Impact on profitbefore income tax^1^ Impact on equity
2023.12.31 + 10 % ~~W~~ (10,313 ) ~~W~~ (18,460 )
- 10 % 10,313 18,460
2022.12.31 + 10 % ~~W~~ (5,841 ) ~~W~~ (15,836 )
- 10 % 5,841 15,836
^1^ Computed with consideration of derivatives hedging effect applied by the Group to hedge foreign exchange risk<br>of liabilities in foreign currencies
--- ---

The analysis above is a simple sensitivity analysis, which assumes that all the variables other than foreign exchange rates are held constant. Therefore, the analysis does not reflect any correlation between foreign exchange rates and other variables, nor management’s decision to decrease the risk.

Details of significant financial assets and liabilities in foreign currencies as of December 31, 2023 and 2022, are as follows:

(in thousands of foreign currencies) December 31, 2022
Financialliabilities Financial<br><br><br>assets Financialliabilities
139,807 2,271,673 106,426 2,336,607
SDR 254 722 255 722
17,496 400,002 32,801 400,002
30 83
304 7,810 185 7,832
RWF 402 15,521 13,025
THB 244 265
TZS 21,958 1,464
BWP 680 183
HKD 37
VND 380,629 280,226
SGD 1,375 448 284,000
TWD 1,685
MYR 1
CHF 25
BGN 62
PKR 114,025

All values are in US Dollars.

106

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(iii) Price risk

As of December 31, 2023 and 2022, the Group is exposed to equity securities price risk because the securities held by the Group are traded in active markets. If the stock index increased or decreased by 10% with all other variables held constant, the effects on profit before income tax and equity would have been as follows:

(in millions of Korean won) Fluctuation ofstock index Impact on profitbefore income tax Impact on equity
2023.12.31 + 10% ~~W~~ 1,473 ~~W~~ 121,423
- 10% (1,473 ) (121,423 )
2022.12.31 + 10% ~~W~~ 111,288 ~~W~~ 113,948
- 10% (111,288 ) (113,948 )

The analysis above is based on the assumption that the equity index increased or decreased by 10% with all other variables held constant and all the Group’s marketable equity instruments moved according to the historical correlation with the index. Equity would increase or decrease as a result of gain or loss on equity securities classified as financial assets at fair value through profit or loss and financial assets at fair value through other comprehensive income.

(iv) Cash flow and fair value interest rate risk

The Group’s interest rate risk arises from liabilities in foreign currency such as foreign currency debentures. Debentures in foreign currency issued at variable rates expose the Group to cash flow interest rate risk which is partially offset by swap transactions. Debentures and borrowings issued at fixed rates expose the Group to fair value interest rate risk. The Group sets the policy and operates to minimize the uncertainty of changes in interest rates and financial costs.

As of December 31, 2023 and 2022, if the market interest rate had increased or decreased by 100bp with other variables held constant, the effects on profit before income tax and equity would be as follows:

(in millions of Korean won) Fluctuation of<br><br><br>interest rate Impact on profitbefore income tax Impact on equity
2023.12.31 + 100 bp ~~W~~ (2,693 ) ~~W~~ (4,718 )
- 100 bp 2,696 5,037
2022.12.31 + 100 bp ~~W~~ 635 ~~W~~ (2,045 )
- 100 bp (669 ) 2,100

The analysis above is a simple sensitivity analysis which assumes that all the variables other than market interest rates are held constant. Therefore, the analysis does not reflect any correlation between market interest rates and other variables, nor management’s decision to decrease the risk.

107

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2) Credit risk

Credit risk is the risk of financial loss to the Group if a customer or counterparty to a financial instrument fails to meet its contractual obligations, and arises principally from the Group’s trade receivables from customers, debt securities and others.

Risk management

Credit risk is managed on the Group basis with the purpose of minimizing financial loss. Credit risk arises from the normal transactions and investing activities, where clients or other party fails to discharge an obligation on contract conditions. To manage credit risk, the Group considers the counterparty’s credit based on the counterparty’s financial conditions, default history and other important factors.

Credit risk arises from cash and cash equivalents, derivative financial instruments and deposits with banks and financial institutions, as well as outstanding receivables. To minimize such risk, only financial institutions with strong credit ratings are accepted.

The Group’s investments in debt instruments are considered to be low risk investments. The credit ratings of the investments are monitored for credit deterioration.

Security

For some trade receivables, the Group may obtain security in the form of guarantees or letters of credit, etc. which can be called upon if the counterparty defaults under the terms of the agreement.

Impairment of financial assets

The Group has four types of financial assets that are subject to the expected credit loss model:

trade receivables for sales of goods and provision of services,
contract assets relating to provision of services,
--- ---
debt investments carried at fair value through other comprehensive income, and
--- ---
other financial assets carried at amortized cost.
--- ---

While cash equivalents are also subject to the impairment requirement, the identified expected credit loss is immaterial.

108

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

The maximum exposure to credit risk of the Group’s financial instruments without considering the value of collaterals as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Cash and cash equivalents (except for cash on hand) ~~W~~ 2,869,285 ~~W~~ 2,437,629
Trade and other receivables
Financial assets at amortized costs 8,458,259 7,459,994
Financial assets at fair value through other comprehensive income 116,198 129,124
Contract assets 832,520 802,253
Other financial assets
Derivatives financial assets for hedging 159,211 190,830
Financial assets at fair value through profit or loss 880,549 942,274
Financial assets at fair value through other comprehensive income 5,913 5,432
Financial assets at amortized costs 1,385,921 1,060,058
Total ~~W~~ 14,707,856 ~~W~~ 13,027,594

The Group is exposed to credit risk for financial guarantee contracts. As of December 31, 2023, the Group’s maximum exposure amount is ~~W~~ 116,719 million (2022: ~~W~~ 26,206 million).

(i) Trade receivables at amortized costs

The Group applies a simplified method of recognizing the expected credit loss allowance, which uses lifetime expected credit loss for all trade receivables and contact assets.

The Group measures the expected credit loss by considering the future unrecoverable rate of the remaining balance of trade receivables and other receivables at the end of the reporting period. Each trade receivables and other receivables are classified considering the credit risk characteristics and overdue periods in order to measure expected credit loss. The expected credit loss rate calculation is based on historical payment and credit loss information in relation to revenue for 36 months period up to December 31, 2023. Meanwhile, the credit sales assets of BC Card Co., Ltd., a subsidiary, were judged to have low credit risk, so the expected 12-month credit loss was applied.

109

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

The expected credit losses reflect forward-looking information. Provision for impairment as of December 31, 2023 and 2022, are as follows:

December 31, 2023
(in millions of Korean won) Less than<br><br><br>6 months 7-12months More than<br><br><br>1 years Total
Expected credit loss rate 5.43 % 21.72 % 54.55 %
Total carrying amounts ~~W~~ 3,466,588 ~~W~~ 68,772 ~~W~~ 235,129 ~~W~~ 3,770,489
Provision for impairment ~~W~~ (188,086 ) ~~W~~ (14,940 ) ~~W~~ (128,264 ) ~~W~~ (331,290 )
December 31, 2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Less than<br><br><br>6 months 7-12 months More than<br><br><br>1 years Total
Expected credit loss rate 5.57 % 25.84 % 67.16 %
Total carrying amounts ~~W~~ 3,443,163 ~~W~~ 49,491 ~~W~~ 207,396 ~~W~~ 3,700,050
Provision for impairment ~~W~~ (191,668 ) ~~W~~ (12,789 ) ~~W~~ (139,281 ) ~~W~~ (343,738 )

Details of changes in provisions for impairment of trade receivables the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Beginning balance^^ ~~W~~ 343,738 ~~W~~ 349,725
Provision 69,972 64,522
Written-off (80,126 ) (68,298 )
Others (2,294 ) (2,211 )
Ending balance^^ ~~W~~ 331,290 ~~W~~ 343,738

As of December 31, 2023, the maximum exposure of the trade receivables carrying amount to credit risk is ~~W~~ 3,439,199 million (2022: ~~W~~ 3,356,312 million).

Impairment of trade receivable for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Impairment loss
Bad debt expenses ~~W~~ 69,972 ~~W~~ 64,522

110

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(ii) Cash equivalents (except for cash on hand)

The Group is also exposed to credit risk in relation to financial assets that are measured at fair value through profit or loss. The maximum exposure, as of December 31, 2023, is the carrying amount of these investments.

(iii) Other financial assets at amortized costs

Other financial assets at amortized cost include time deposits, other long-term financial instruments, and others. All of the financial assets at amortized costs are considered to have low credit risk, and the loss allowance recognized during the period was, therefore, limited to 12 months expected losses. Management considers ‘low credit risk’ for other instruments when they have a low risk of default and the issuer has a strong capacity to meet its contractual cash flow obligations in the near term.

Details of changes in provisions for impairment of other financial assets at amortized costs for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Beginning balance^^ ~~W~~ 218,543 ~~W~~ 201,387
Provision 114,501 65,941
Written-off (150,014 ) (51,383 )
Reversal (14,941 ) (850 )
Others 15,547 3,448
Ending balance^^ ~~W~~ 183,636 ~~W~~ 218,543
(iv) Financial assets at fair value through other comprehensive income
--- ---

Financial assets at fair value through other comprehensive income include available-for-sale recognized in the prior financial year.

All of the debt investments at fair value through other comprehensive income are considered to have low credit risk, and the loss allowance recognized during the period was, therefore, limited to 12 months expected losses. Managements consider ‘low credit risk’ for other instruments when they have a low risk of default and the issuer has a strong capacity to meet its contractual cash flow obligations in the near term.

The Group is also exposed to credit risk in relation to financial assets that are measured at fair value through other comprehensive income. The maximum exposure at the end of the reporting period is the carrying amount of these investments.

111

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(v) Financial assets at fair value through profit or loss

The Group is also exposed to credit risk in relation to financial assets that are measured at fair value through profit or loss. The maximum exposure, as of December 31, 2023, is the carrying amount of these investments.

3) Liquidity risk

The Group manages its liquidity risk by liquidity strategy and plans. The Group considers the maturity of financial assets and financial liabilities and the estimated cash flows from operations.

The table below analyzes the Group’s liabilities (including interest expenses) into relevant maturity groups based on the remaining period at the date of the end of each reporting period to the contractual maturity date. These amounts are contractual undiscounted cash flows and can differ from the amount in the consolidated financial statements.

December 31, 2023
(in millions of Korean won) Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Trade and other payables ~~W~~ 8,184,036 ~~W~~ 730,340 ~~W~~ 8,040 ~~W~~ 8,922,416
Borrowings (including debentures) 2,922,557 6,027,323 1,743,842 10,693,722
Lease liabilities 313,431 617,561 409,174 1,340,166
Other non-derivative financial liabilities 372,743 747,221 10,073 1,130,037
Financial guarantee contracts ^1^ 13,719 103,000 116,719
Total ~~W~~ 11,806,486 ~~W~~ 8,225,445 ~~W~~ 2,171,129 ~~W~~ 22,203,060

112

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

December 31, 2022
(in millions of Korean won) Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Trade and other payables ~~W~~ 7,386,703 ~~W~~ 1,009,559 ~~W~~ 86,848 ~~W~~ 8,483,110
Borrowings (including debentures) 2,028,207 6,972,077 2,016,472 11,016,756
Lease liabilities 313,162 615,766 407,833 1,336,761
Other non-derivative financial liabilities 33,279 209,155 93,744 336,178
Financial guarantee contracts ^1^ 21,618 4,588 26,206
Total ~~W~~ 9,782,969 ~~W~~ 8,806,557 ~~W~~ 2,609,485 ~~W~~ 21,199,011
^1^ Total amount guaranteed by the Group according to guarantee contracts. Cash flow from financial guarantee<br>contracts is classified as the maturity group in the earliest period when the financial guarantee contracts can be executed.
--- ---

As of December 31, 2023, the cash outflows and inflows by maturity of the Group’s derivatives held for trading and gross-settled derivatives, are as follows:

December 31, 2023
(in millions of Korean won) Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Derivatives held for trading ^1^
Outflows ~~W~~ ~~W~~ 133,293 ~~W~~ ~~W~~ 133,293
Inflows 1,015 1,015
Derivatives settled gross ^2^
Outflows ~~W~~ 741,140 ~~W~~ 1,227,166 ~~W~~ 8,126 ~~W~~ 1,976,432
Inflows 614,066 2,198,958 36,344 2,849,368
^1^ During the year ended December 31, 2023, derivative liabilities held-for-trading are classified under the ‘more than one year to less than five years’ category as they are relevant to the fair value of derivatives liabilities related to shareholder-to-share contracts (Note 19).
--- ---

As these derivatives held-for-trading are managed based on net fair value, their contractual maturities are not necessarily taking into consideration to understand the timing of cash flows.

^2^ Cash outflow and inflow of gross-settled derivatives are undiscounted contractual cash flow and may differ from<br>the amount in the consolidated statement of financial position.

113

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

December 31, 2022
(in millions of Korean won) Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Derivatives held for trading ^1^
Outflows ~~W~~ ~~W~~ 101,994 ~~W~~ 930 ~~W~~ 102,924
Derivatives settled gross ^2^
Outflows ~~W~~ 472,005 ~~W~~ 2,493,858 ~~W~~ 28,786 ~~W~~ 2,994,649
Inflows 550,478 2,670,002 37,873 3,258,353
^1^ During the year ended December 31, 2023, derivative liabilities held-for-trading are classified under the ‘more than one year to more than five years’ category as they are relevant to the fair value of derivatives liabilities related to shareholder-to-share contracts (Note 19).
--- ---

As these derivatives held-for-trading are managed based on net fair value, their contractual maturities are not necessarily taken into consideration to understand the timing of cash flows.

^2^ Cash outflow and inflow of gross-settled derivatives are undiscounted contractual cash flow and may differ from<br>the amount in the consolidated statement of financial position.

Meanwhile, as of December 31, 2023, the Group is obligated to invest ~~W~~ 107,774 million in Kiamco Data Center Blind Fund, a related party, and others, and ~~W~~ 4,132 million and USD 30,350 thousand to make payment using the future Capital Call method to Future Innovation Private Equity Fund No.3 (Notes 19 and 35).

114

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Capital Risk Management

The Group’s objectives when managing capital are to safeguard the Group’s ability to continue as a going concern in order to provide returns for shareholders and benefits for other shareholders and to maintain an optimal capital structure to reduce the cost of capital.

The Group’s capital structure consists of liabilities including borrowings, cash and cash equivalents, and shareholders’ equity. The treasury department monitors the Group’s capital structure and considers cost of capital and risks related each to capital component.

The debt-to-equity ratios as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Total liabilities ~~W~~ 24,148,845 ~~W~~ 22,565,958
Total equity 18,561,137 18,414,723
Debt-to-equity<br>ratio 130 % 123 %

The Group manages capital on the basis of the gearing ratio. This ratio is calculated as net debt divided by total capital. Net debt is calculated as total borrowings less cash and cash equivalents. Total capital is calculated as ‘equity’ in the consolidated statement of financial position plus net debt.

The gearing ratios as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Total borrowings ~~W~~ 10,218,165 ~~W~~ 10,006,685
Less: cash and cash equivalents (2,879,554 ) (2,449,062 )
Net debt 7,338,611 7,557,623
Total equity 18,561,137 18,414,723
Total capital 25,899,748 25,972,346
Gearing ratio 28 % 29 %

115

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) Offsetting Financial Assets and Financial Liabilities
1) Details of the Group’s financial assets recognized, subject to enforceable master netting arrangements or<br>similar agreements, as of December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Gross<br><br><br>assets Grossliabilitiesoffset Net amountspresented inthe statementof financialposition Amounts not offset Net amount
Financialinstruments Cashcollateral
Trade receivables^^ ~~W~~ 78,415 ~~W~~ (1,407 ) ~~W~~ 77,008 ~~W~~ (59,148 ) ~~W~~ ~~W~~ 17,860
Other financial assets 759 (757 ) 2 (2 )
Total ~~W~~ 79,174 ~~W~~ (2,164 ) ~~W~~ 77,010 ~~W~~ (59,150 ) ~~W~~ ~~W~~ 17,860
(in millions of Korean won) December 31, 2022
Gross<br><br><br>assets Grossliabilitiesoffset Net amountspresented inthe statementof financialposition Amounts not offset Net amount
Financialinstruments Cashcollateral
Trade receivables^^ ~~W~~ 60,512 ~~W~~ ~~W~~ 60,512 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 15,994
Other financial assets 764 (764 )
Total ~~W~~ 61,276 ~~W~~ (764 ) ~~W~~ 65,012 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 15,994

The amount in the above table includes the amounts subject to offsetting arrangements under the agreement on facility interconnection and data sharing between telecommunication companies.

116

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

2) Details of the Group’s financial liabilities recognized, subject to enforceable master netting<br>arrangements or similar agreements, as of December 31, 2023 and 2022, are as follows:
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Grossliabilities Gross assets<br><br><br>offset Net amountspresented inthe statementof financial<br><br><br>position Amounts not offset Net amount
Financialinstruments Cashcollateral
Trade payables ~~W~~ 59,602 ~~W~~ (757 ) ~~W~~ 58,845 ~~W~~ (56,196 ) ~~W~~ ~~W~~ 2,649
Other payables 4,362 (1,407 ) 2,955 (2,955 )
Total ~~W~~ 63,964 ~~W~~ (2,164 ) ~~W~~ 61,800 ~~W~~ (59,151 ) ~~W~~ ~~W~~ 2,649
(in millions of Korean won) December 31, 2022
Grossliabilities Gross assets<br><br><br>offset Net amountspresented inthe statementof financial<br><br><br>position Amounts not offset Net amount
Financialinstruments Cashcollateral
Trade payables ~~W~~ 47,271 ~~W~~ (764 ) ~~W~~ 46,507 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 1,989

These include price subject to netting arrangements on facility interconnection and data sharing among telecommunication companies.

117

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

37. Fair Value
(1) Fair Value of Financial Instruments by Category
--- ---

Carrying amount and fair value of financial instruments by category as of December 31, 2023 and 2022, are as follows:

December 31, 2023 December 31, 2022
(in millions of Korean won) Carryingamount Fair value Carryingamount Fair value
Financial assets
Cash and cash equivalents ~~W~~ 2,879,554 ^1^ ~~W~~ 2,449,062 ^1^
Trade and other receivables
Financial assets measured at amortized cost<br>^2^ 8,326,229 ^1^ 7,364,516 ^1^
Financial assets at fair value through other comprehensive income 116,198 116,198 129,124 129,124
Other financial assets
Financial assets measured at amortized cost 1,385,921 ^1^ 1,060,058 ^1^
Financial assets at fair value through profit or loss 939,661 939,661 1,064,856 1,064,856
Financial assets at fair value through other comprehensive income 1,680,168 1,680,168 1,508,192 1,508,192
Derivative financial assets for hedging 159,211 159,211 190,830 190,830
Total ~~W~~ 15,486,942 ~~W~~ 13,766,638
Financial liabilities
Trade and other payables^3^ ~~W~~ 8,317,822 ^1^ ~~W~~ 8,397,264 ^1^
Borrowings 10,218,165 9,979,545 10,006,685 9,405,992
Other financial liabilities
Financial liabilities at amortized cost 915,185 ^1^ 246,606 ^1^
Financial liabilities at fair value through profit or loss 136,106 136,106 141,280 141,280
Derivative financial liabilities for hedging 24,547 24,547 33,555 33,555
Total ~~W~~ 19,611,825 ~~W~~ 18,825,390
^1^ The Group did not conduct fair value estimation since the book amount is a reasonable approximation of the fair<br>value.
--- ---
^2^ Lease receivables are excluded from fair value disclosure in accordance with Korean IFRS 1107.<br>
--- ---
^3^ Amounts related to employee benefit plans are included in trade and other payables at the end of previous year.<br>
--- ---

118

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Fair Value Hierarchy

To provide an indication about the reliability of the inputs used in determining fair value, the Group classifies its financial instruments into the three levels prescribed under the accounting standards. Financial instruments that are measured at fair value are categorized by the fair value hierarchy, and the defined levels are as follows:

Level 1: The fair value of financial instruments traded in active markets is based on quoted market prices<br>at the end of the reporting period. The quoted market price used for financial assets held by the Group is the current bid price. These instruments are included in level 1.
Level 2: The fair value of financial instruments that are not traded in an active market is determined using<br>valuation techniques which maximize the use of observable market data and rely as little as possible on entity-specific estimates. If all significant inputs required to fair value an instrument are observable, the instrument is included in level 2.<br>
--- ---
Level 3: If one or more of the significant inputs is not based on observable market data, the instrument is<br>included in level 3.
--- ---

119

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

Fair value hierarchy classifications of the financial assets and financial liabilities that are measured at fair value disclosed in fair value as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Level 1 Level 2 Level 3 Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ ~~W~~ 116,198 ~~W~~ ~~W~~ 116,198
Other financial assets
Financial assets at fair value through profit or loss 13,911 156,918 768,832 939,661
Financial assets at fair value through other comprehensive income 1,230,936 5,206 444,026 1,680,168
Derivative financial assets for hedging 159,211 159,211
Investment properties 5,276,169 5,276,169
Total ~~W~~ 1,244,847 ~~W~~ 437,533 ~~W~~ 6,489,027 ~~W~~ 8,171,407
Liabilities
Borrowings ~~W~~ ~~W~~ 9,979,545 ~~W~~ ~~W~~ 9,979,545
Other financial liabilities
Financial liabilities at fair value through profit or loss 1,545 134,561 136,106
Derivative financial liabilities for hedging 24,547 24,547
Total ~~W~~ ~~W~~ 10,005,637 ~~W~~ 134,561 ~~W~~ 10,140,198

120

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Level 1 Level 2 Level 3 Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ ~~W~~ 129,124 ~~W~~ ~~W~~ 129,124
Other financial assets
Financial assets at fair value through profit or loss 26,647 426,140 612,069 1,064,856
Financial assets at fair value through other comprehensive income 1,005,900 5,163 497,129 1,508,192
Derivative financial assets for hedging 189,717 1,113 190,830
Investment properties 5,370,047 5,370,047
Total ~~W~~ 1,032,547 ~~W~~ 750,144 ~~W~~ 6,480,358 ~~W~~ 8,263,049
Liabilities
Borrowings ~~W~~ ~~W~~ 9,405,992 ~~W~~ ~~W~~ 9,405,992
Other financial liabilities
Financial liabilities at fair value through profit or loss 141,280 141,280
Derivative financial liabilities for hedging 33,555 33,555
Total ~~W~~ ~~W~~ 9,439,547 ~~W~~ 141,280 ~~W~~ 9,580,827

121

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(3) Transfers Between Fair Value Hierarchy Levels of Recurring Fair Value Measurements
1) Details of transfers between Level 1 and Level 2 of the fair value hierarchy for recurring fair value<br>measurements
--- ---

There are no transfers between Level 1 and Level 2 of the fair value hierarchy for the recurring fair value measurements.

2) Details of changes in Level 3 of the fair value hierarchy for recurring fair value measurements.<br>

Details of changes in Level 3 of the fair value hierarchy for the recurring fair value measurements are as follows:

(in millions of Korean won) 2023
Financial assets Financial liabilities
Financial assets at<br><br><br>fair value through<br><br><br>profit or loss Financial assetsat fair valuethrough othercomprehensiveincome Derivativefinancial assets forhedging Financial liabilities at<br><br><br>fair value through<br> <br>profitor loss
Beginning balance ~~W~~ 612,069 ~~W~~ 497,129 ~~W~~ 1,113 ~~W~~ 141,280
Acquisition 216,838 10,267
Reclassification 26,471 (5,532 ) (1,113 ) (7,363 )
Changes in consolidation scope 252
Disposal (44,323 ) (6 ) (5,205 )
Amount recognized in profit or loss<br>^1,^ (42,475 ) (61 ) 5,849
Amount recognized in other comprehensive income (57,771 )
Ending balance ~~W~~ 768,832 ~~W~~ 444,026 ~~W~~ ~~W~~ 134,561
^1^ The recognition of gains and losses on financial liabilities measured at fair value through profit or loss<br>consists of derivative valuation gains and losses.
--- ---

122

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) 2022
Financial assets Financial liabilities
Financial assets atfair value throughprofit or loss Financial assets<br><br><br>at fair value<br> <br>throughother<br> <br>comprehensive<br><br><br>income Derivativefinancial assets(liabilities) forhedging Financial liabilities atfair value throughprofit or loss
Beginning balance ~~W~~ 577,085 ~~W~~ 323,373 ~~W~~ 31,565 ~~W~~ 215,332
Acquisition 226,310 262,408 3,046
Reclassification (8,962 ) 8,122 (54,921 )
Changes in consolidation scope (40 )
Disposal (179,740 ) (97,426 ) (31,565 )
Amount recognized in profit or loss<br>^1,2^ (2,624 ) 18 (22,177 )
Amount recognized in other comprehensive income ^1^ 674 1,113
Ending balance ~~W~~ 612,069 ~~W~~ 497,129 ~~W~~ 1,113 ~~W~~ 141,280
^1^ The recognition of gains and losses on derivatives financial liabilities (assets) for hedging purposes consists<br>entirely of derivatives valuation losses.
--- ---
^2^ The recognition of gains and losses on financial liabilities measured at fair value through profit or loss<br>consists of derivative valuation losses.
--- ---

123

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(4) Valuation Technique and the Inputs

Valuation techniques and inputs used in the recurring, non-recurring fair value measurements and disclosed fair values categorized within Level 2 and Level 3 of the fair value hierarchy as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Fair value Level Valuation techniques Inputs
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ 116,198 2 DCF Model Guaranteed bond<br>interest rate
Other financial assets
Financial assets at fair value through profit or loss 925,750 2,3 DCF Model,<br> <br>Adjusted Net Asset Model,<br><br><br>Monte-Carlo Simulation Market Interest rate,<br> <br>Underlying asset price
Financial assets at fair value through other comprehensive income 449,232 2,3 DCF Model,<br> <br>Market Approach Model Discount rate
Derivative financial assets for hedging 159,211 2 DCF Model Market observation<br>discount rate,<br> <br>Swap interest rate
Investment properties 5,276,169 3 DCF Model
Liabilities
Borrowings ~~W~~ 9,979,545 2 DCF Model Bond interest rate
Other financial liabilities
Financial liabilities at fair value through profit or loss 136,106 2,3 DCF Model,<br> <br>Binomial Option Pricing<br>Model, Forward exchange rate<br> <br>Forward interest rate
Derivative financial liabilities for hedging 24,547 2 DCF Model Market observation<br>discount rate

124

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Fair value Level Valuation techniques Inputs
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ 129,214 2 DCF Model Guaranteed bond<br>interest rate
Other financial assets
Financial assets at fair value through profit or loss 1,038,209 2,3 DCF Model,<br> <br>Adjusted Net Asset<br>Model,<br><br><br>Monte-Carlo Simulation Market Interest<br>rate,<br> <br>Underlying asset<br>price
Financial assets at fair value through other comprehensive income 502,292 2,3 DCF Model,<br> <br>Market Approach Model Discount rate
Derivative financial assets for hedging 190,830 2,3 DCF Model Market observation<br>discount rate,<br> <br>Swap interest rate
Investment properties 5,370,047 3 DCF Model
Liabilities
Borrowings ~~W~~ 9,405,992 2 DCF Model Bond interest rate
Other financial liabilities
Financial liabilities at fair value through profit or loss 141,280 3 DCF Model,<br> <br>Binomial Option Pricing<br>Model,<br><br><br>Monte-Carlo Simulation
Derivative financial liabilities for hedging 33,555 2 DCF Model Market observation<br>discount rate
(5) Valuation Processes for Fair Value Measurements Categorized Within Level 3
--- ---

The Group uses external experts that perform the fair value measurements required for financial reporting purposes. External experts report directly to the chief financial officer (CFO) and discuss the valuation processes and results with the CFO in line with the Group’s closing dates.

125

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(6) Gains and Losses on Valuation at the Transaction Date

In the case that the Group values derivative financial instruments using inputs not based on observable market data, and the fair value calculated by the said valuation technique differs from the transaction price, then the fair value of the financial instruments is recognized as the transaction price. The difference between the fair value at initial recognition and the transaction price is deferred and amortized using a straight-line method by maturity of the financial instrument. However, in the case that inputs of the valuation techniques become observable in markets, the remaining deferred difference is immediately recognized in full in profit or loss.

In relation to this, details and changes of the total deferred difference for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Derivativesused forhedging Derivativesused forhedging
I. Beginning balance ~~W~~ ~~W~~ 832
II. New transactions
III. Recognized at fair value through profit or loss (832 )
IV. Ending balance (I+II+III) ~~W~~ ~~W~~

126

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

38. Interests in Unconsolidated Structured Entities
(1) Details of information about its interests in unconsolidated structured entities, which the Group does not have<br>control over, including the nature, purpose and activities of the structured entity and how the structured entity is financed, are as follows:
--- ---
Classes ofentities Nature, purpose, activities and others
--- ---
Real estate<br>finance A structured entity incorporated for the purpose of real estate development is provided with funds by investors’ investments in equity and borrowings from financial institutions (including long-term and short-term loans and<br>issuance of ABCP due in three months), and based on these, the structured entity implements activities such as real estate acquisition, development and mortgage loans. The structured entity repays loan principals with funds incurred from instalment<br>house sales after the completion of real estate development or with collection of the principal of mortgage loan. The remaining shares are distributed to investors. As of December 31, 2023, this entity is engaged in real estate finance<br>structured entity, and generates revenues by receiving dividends from direct investments in or receiving interests on loans to the structured entity. Financial institutions, including the Entity, are provided with guarantees including joint<br>guarantees or real estate collateral from investors and others. Consequently, the entity is a priority over other parties in the preservation of claim. However, when the credit rating of investors and others decreases or when the value of real<br>estate decreases, the entity may be obliged to cover losses.
PEF and<br>investment<br>funds Minority investors including managing members contribute to PEF and investment funds incorporated for the purpose of providing funds to the small, medium, or venture entities, and the managing member implements activities such as<br>investments in equity or loans based on the contributions. As of December 31, 2023, the entity is engaged in PEF and investment funds structured entity, and after contributing to PEF and investment funds, the entity receives dividends for<br>operating revenues from these contributions. The entity is provided with underlying assets of PEF and investment funds as collateral. However, when the value of the underlying assets decreases, the entity may be obliged to cover losses.
Asset<br>securitization The Group transfers accounts receivable for handset sales to its Special Purpose Company (“SPC”) for asset securitization. SPC issues the asset-backed securities with accounts receivable for handset sales as an underlying<br>asset, and makes payment for the underlying asset acquired.

127

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Details of scale of unconsolidated structured entities and nature of the risks associated with an entity’s<br>interests in unconsolidated structured entities as of December 31, 2023 and 2022, are as follows:
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- ---
Real EstateFinance PEF andInvestmentFunds AssetSecuritization Total
Total assets of unconsolidated structured entities ~~W~~ 7,890,823 ~~W~~ 4,833,966 ~~W~~ 1,846,270 ~~W~~ 14,571,059
Assets recognized in statement of financial position
Other financial assets ~~W~~ 216,040 ~~W~~ 227,266 ~~W~~ ~~W~~ 443,306
Joint ventures and associates 144,517 282,550 427,067
Total ~~W~~ 360,557 ~~W~~ 509,816 ~~W~~ ~~W~~ 870,373
Maximum loss exposure ^1^
Investment assets ~~W~~ 360,557 ~~W~~ 509,816 ~~W~~ ~~W~~ 870,373
Investment agreement, etc 44,975 106,064 151,039
Total ~~W~~ 405,532 ~~W~~ 615,880 ~~W~~ ~~W~~ 1,021,412
^1^ Includes the investments recognized in the Group’s financial statements and the amounts which are probable<br>to be determined when certain conditions are met by agreements including purchase agreements, credit granting and others.
--- ---

128

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Real EstateFinance PEF andInvestmentFunds AssetSecuritization Total
Total assets of unconsolidated structured entities ~~W~~ 3,539,827 ~~W~~ 5,580,445 ~~W~~ 2,044,989 ~~W~~ 11,165,261
Assets recognized in statement of financial position
Other financial assets ~~W~~ 77,819 ~~W~~ 237,907 ~~W~~ ~~W~~ 315,726
Joint ventures and associates 123,138 268,275 391,413
Total ~~W~~ 200,957 ~~W~~ 506,182 ~~W~~ ~~W~~ 707,139
Maximum loss exposure ^1^
Investment assets ~~W~~ 200,957 ~~W~~ 506,182 ~~W~~ ~~W~~ 707,139
Investment agreement, etc. 40,914 91,224 132,138
Total ~~W~~ 241,871 ~~W~~ 597,406 ~~W~~ ~~W~~ 839,277
^1^ Includes the investments recognized in the Group’s financial statements and the amounts which are probable<br>to be determined when certain conditions are met by agreements including purchase agreements, credit granting and others.
--- ---

129

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

39. Information About Non-Controlling Interests
(1) Changes in Accumulated Non-Controlling Interests
--- ---

Profit or loss allocated to non-controlling interests and accumulated non-controlling interests of subsidiaries that are material to the Group for the years ended December 31, 2023 and 2022, is as follows:

(in millions of Korean won) 2023
Non-controllinginterests’ rate(%) Accumulatednon-controllinginterests at thebeginning ofthe year Profit or lossallocated tonon-controllinginterests Dividends paidtonon-controllinginterests Others Accumulatednon-controllinginterests at theend of the year
KT Skylife Co., Ltd. 49.4 % ~~W~~ 423,189 ~~W~~ (47,355 ) ~~W~~ (8,287 ) ~~W~~ (6,192 ) ~~W~~ 361,355
BC Card Co., Ltd. 30.5 % 524,657 25,355 (4,960 ) 3,023 548,075
KTIS Corporation 66.7 % 141,402 5,947 (2,451 ) (1,872 ) 143,026
KTCS Corporation 78.3 % 153,881 14,228 (3,001 ) (2,313 ) 162,795
Nasmedia, Co., Ltd. 55.9 % 135,425 10,679 (4,028 ) (467 ) 141,609
(in millions of Korean won) 2022
Non-controllinginterests’ rate(%) Accumulatednon-controllinginterests at thebeginning ofthe year Profit or lossallocated tonon-controllinginterests Dividends paidtonon-controllinginterests Others Accumulatednon-controllinginterests at theend of the year
KT Skylife Co., Ltd. 49.8 % ~~W~~ 410,695 ~~W~~ 7,127 ~~W~~ (8,284 ) ~~W~~ 13,651 ~~W~~ 423,189
BC Card Co., Ltd. 30.5 % 498,928 47,909 (7,641 ) (14,539 ) 524,657
KTIS Corporation 66.7 % 135,240 14,965 (2,226 ) (6,577 ) 141,402
KTCS Corporation 78.3 % 145,111 18,888 (2,721 ) (7,397 ) 153,881
Nasmedia, Co., Ltd. 56.0 % 124,181 15,610 (4,187 ) (179 ) 135,425

130

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(2) Summarized Financial Information on Subsidiaries

The summarized financial information for each subsidiary with non-controlling interests that are material to the Group, before inter-group eliminations, is as follows:

(in millions of Korean won) December 31, 2023
KT Skylife Co., Ltd. BC Card Co., Ltd. KTIS Corporation KTCS Corporation Nasmedia, Co., Ltd.
Current assets ~~W~~ 425,661 ~~W~~ 3,739,847 ~~W~~ 111,313 ~~W~~ 304,508 ~~W~~ 411,774
Non-current assets 795,182 2,613,031 336,296 130,391 101,537
Current liabilities 353,839 3,661,263 116,271 187,621 251,207
Non-current liabilities 125,531 1,061,169 127,248 47,228 11,129
Equity 741,473 1,630,446 204,090 200,050 250,975
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- --- --- ---
KT Skylife Co., Ltd. BC Card Co., Ltd. KTIS Corporation KTCS Corporation Nasmedia, Co., Ltd.
Current assets ~~W~~ 420,701 ~~W~~ 3,152,622 ~~W~~ 102,121 ~~W~~ 296,209 ~~W~~ 435,359
Non-current assets 938,465 2,513,453 294,087 123,517 81,586
Current liabilities 274,637 2,879,551 103,698 188,379 261,381
Non-current liabilities 229,042 1,229,649 95,506 40,240 14,349
Equity 855,487 1,556,875 197,004 191,107 241,215

Summarized consolidated statements of comprehensive income for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023
KT Skylife Co., Ltd. BC Card Co., Ltd. KTIS Corporation KTCS Corporation Nasmedia, Co., Ltd.
Sales ~~W~~ 1,027,986 ~~W~~ 4,025,023 ~~W~~ 592,960 ~~W~~ 1,035,366 ~~W~~ 146,769
Profit for the year (109,407 ) 76,545 13,922 15,804 17,703
Other comprehensive income (loss) (6,625 ) 13,832 (3,162 ) (2,550 ) (1,890 )
Total comprehensive income (116,032 ) 90,377 10,760 13,254 15,813

131

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) 2022
KT Skylife Co., Ltd. BC Card Co., Ltd. KTIS Corporation KTCS Corporation Nasmedia, Co., Ltd.
Sales ~~W~~ 1,034,236 ~~W~~ 3,895,764 ~~W~~ 535,783 ~~W~~ 1,030,158 ~~W~~ 152,394
Profit for the year 20,941 148,341 15,917 17,634 27,691
Other comprehensive income (loss) 13,544 (5,286 ) (2,415 ) (134 ) (695 )
Total comprehensive income 34,485 143,055 13,502 17,500 26,996

Summarized consolidated statements of cash flows for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023
KT Skylife Co., Ltd. BC Card  Co., Ltd. KTIS Corporation KTCS Corporation Nasmedia, Co., Ltd.
Cash flows from operating activities ~~W~~ 207,207 ~~W~~ 82,883 ~~W~~ 50,892 ~~W~~ 55,146 ~~W~~ 8,116
Cash flows from investing activities (125,343 ) (74,430 ) (17,636 ) (5,901 ) (30,910 )
Cash flows from financing activities (50,811 ) (67,609 ) (32,872 ) (26,948 ) (11,077 )
Net increase (decrease) in cash and cash equivalents 31,053 (59,156 ) 384 22,297 (33,871 )
Cash and cash equivalents at beginning of year 98,695 435,047 24,944 61,814 86,133
Exchange differences (95 ) 15
Cash and cash equivalents at end of the year 129,748 375,796 25,328 84,111 52,277

132

KT Corporation and Subsidiaries

Notes to the Consolidated Financial Statements

December 31, 2023 and 2022

(in millions of Korean won) 2022
KT Skylife Co., Ltd. BC Card Co., Ltd. KTIS Corporation KTCS Corporation Nasmedia, Co., Ltd.
Cash flows from operating activities ~~W~~ 176,407 ~~W~~ (798,043 ) ~~W~~ 13,809 ~~W~~ 19,423 ~~W~~ 22,015
Cash flows from investing activities (78,928 ) (7,733 ) 9,813 13,245 3,845
Cash flows from financing activities (79,455 ) 914,441 (29,199 ) (35,578 ) (11,136 )
Net increase (decrease) in cash and cash equivalents 18,024 108,665 (5,577 ) (2,910 ) 14,724
Cash and cash equivalents at beginning of year 80,672 326,482 30,521 63,884 71,396
Exchange differences (1 ) (100 ) 840 13
Cash and cash equivalents at end of the year 98,695 435,047 24,944 61,814 86,133
(3) Transactions with Non-Controlling Interests
--- ---

The effect of changes in the ownership interest on the equity attributable to owners of the Group for the years ended December 31, 2023 and 2022 is summarized as follows:

(in millions of Korean won) 2023 2022
Carrying amount of non-controlling interests<br>acquired ~~W~~ 3,022 ~~W~~ 19,272
Consideration paid to non-controlling interests 213,819 69,652
Effect of changes in equity (net amount) ~~W~~ 216,841 ~~W~~ 88,924
40. Events After the Reporting Period
--- ---
(1) The Company has decided to acquire treasury stocks (~~W~~ 27,100 million) in accordance with a<br>resolution of the Board of Directors dated February 7, 2024, to enhance shareholder value. The acquired treasury stocks will be retired in March 2024.
--- ---
(2) The company issued the following bonds after the end of the reporting period (unit: ~~W~~<br>million).
--- ---
Type Issued Date Annual interest<br>rates Maturity Korean<br>won
--- --- --- --- --- --- --- ---
The 200-1st Public bond Feb. 27, 2024 3.552 % Feb. 27, 2026- 120,000
The 200-2nd Public bond Feb. 27, 2024 3.608 % Feb. 26, 2027- 200,000
The 200-3rd Public bond Feb. 27, 2024 3.548 % Feb. 27, 2029- 80,000

133

Deloitte Anjin LLC<br> <br>9F., One IFC,<br><br><br>10, Gukjegeumyung-ro,<br> <br>Youngdeungpo-gu, Seoul<br><br><br>07326, Korea<br> <br><br><br><br>Tel: +82 (2) 6676 1000<br> <br>Fax: +82 (2) 6674 2114<br><br><br>www.deloitteanjin.co.kr

INDEPENDENT AUDITOR’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

English Translation of Independent Auditor’s Report on Internal Control over Financial Reporting Originally Issued in Korean on March 18, 2024

To the shareholders and the Board of Directors of KT Corporation

Audit Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of KT Corporation and its subsidiaries (the “Group”) as of December 31, 2023, based on ‘Conceptual Framework for Design and Operation of Internal Control over Financial Reporting’.

In our opinion, the Group’s internal control over financial reporting is designed and operated effectively as of December 31, 2023, in all material respects, in accordance with the ‘Conceptual Framework for Design and Operation of Internal Control over Financial Reporting’.

We have also audited, in accordance with the Korean Standards on Auditing (“KSAs”), the consolidated financial statements of the Group, which comprise the consolidated statement of financial position as of December 31, 2023, and the consolidated statement of profit or loss, consolidated statement of comprehensive income, consolidated statement of changes in shareholders’ equity and consolidated statement of cash flows, for the year then ended, and notes to the consolidated financial statements, including material accounting policy information, and our report dated March 18, 2024, expressed an unqualified opinion.

Basis for Audit Opinion

We conducted our audits in accordance with the KSAs. Our responsibilities under those standards are further described in the Auditor’s Responsibilities for the Audit of the Internal Control over Financial Reporting section of our report. We are independent of the Group in accordance with the ethical requirements that are relevant to our audits of the internal control over financial reporting 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.

Responsibilities of Management and Those Charged with Governance for the Internal Control over Financial Reporting

Management is responsible for designing, operating and maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report on the Effectiveness of the Internal Control over Financial Reporting by CEO.

Those Charged with Governance is responsible for the oversight of internal control over financial reporting of the Group.

Auditor’s Responsibilities for the Audit of the Internal Control over Financial Reporting

Our responsibility is to express an opinion on the Group’s internal control over financial reporting based on our audit. We conducted our audit in accordance with the KSAs. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee (“DTTL”), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as “Deloitte Global”) does not provide services to clients. Please see www.deloitte.com/kr/about to learn more about our global network of member firms.

Deloitte Touche Tohmatsu Limited is a private company limited by guarantee incorporated in England & Wales under company number 07271800, and its registered office is Hill House, 1 Little New Street, London, EC4a, 3TR, United Kingdom.

134

LOGO

The audit of internal control over financial reporting involves performing procedures to obtain audit evidence about whether a material weakness exists. The procedures selected depend on the auditor’s judgment, including the assessment of the risks of that a material weakness exists. The audit includes obtaining an understanding of internal control over financial reporting and testing and evaluating the design and operating effectiveness of iternal control over financial reporting based on the assessed risks.

Definition and Limitations of Internal Control over Financial Reporting

A group’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes in accordance with Korean International Financial Reporting Standards (“K-IFRS”). A group’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the group; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of consolidated financial statements in accordance with K-IFRS, and that receipts and expenditures of the group are being made only in accordance with authorizations of management and directors of the group; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the group’s assets that could have a material effect on the consolidated financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

The engagement partner on the audit resulting in this independent auditor’s report is Lee, Dong Hyun.

LOGO

March 18, 2024

Notice to Readers<br><br><br><br> <br>This report is effective as of March 18, 2024, the auditor’s report date.<br>Certain subsequent events or circumstances may have occurred between the auditor’s report date and the time the auditor’s report is read. Such events or circumstances could significantly affect the Group’s internal control over<br>financial reporting and may result in modifications to the auditor’s report.

135

Report on the Effectiveness of

the Internal Control over Financial Reporting

To the Shareholders, Audit Committee and Board of Directors of

KT Corporation

We, as the Chief Executive Officer (“CEO”) and the Internal Control over Financial Reporting (“ICFR”) Officer of KT Corporation (“the Company”), assessed the effectiveness of the design and operation of the Company’s Internal Control over Financial Reporting for consolidation purposes for the year ended December 31, 2023.

The Company’s management, including ourselves, is responsible for designing and operating ICFR for consolidation purposes.

We assessed the design and operating effectiveness of the ICFR for consolidation purposes in the prevention and detection of an error or fraud which may cause material misstatements in the preparation and disclosure of reliable Consolidated financial statements.

We designed and operated ICFR for consolidation purposes in accordance with Conceptual Framework for Designing and Operating internal Control over Financial Reporting established by the Operating Committee of Internal Control over Financial Reporting in Korea (“the ICFR Committee”), And, we conducted an evaluation of ICFR for consolidation purposes based on Management Guideline for Evaluating and Reporting Effectiveness of Internal Control over Financial Reporting established by the ICFR Committee.

Based on the assessment results, we believe that the Company’s ICFR for consolidation purposes, as at December 31, 2023, is designed and operating effectively, in all material respects, in conformity with the Conceptual Framework for Designing and Operating Internal Control over Financial Reporting

We certify that this report does not contain any untrue statement of a fact, or omit to state a fact necessary to be presented herein. We also certify that this report does not contain or present any statement which cause material misunderstandings, and we have reviewed and verified this report with sufficient due care.

February 20, 2024

Chief Executive Officer
Internal Control over Financial Reporting Officer

136

KT Corporation

Separate Financial Statements

December 31, 2023and 2022

KT Corporation

Index

December 31, 2023 and 2022

Page(s)
Independent Auditor’s Report 1 – 4
Separate Financial Statements
Separate Statements of Financial Position 5 – 6
Separate Statements of Profit or Loss 7
Separate Statements of Comprehensive Income 8
Separate Statements of Changes in Equity 9
Separate Statements of Cash Flows 10
Notes to the Separate Financial Statements 11 – 112
Independent Auditor’s Report on Internal Control over Financial Reporting 113 – 114
Report on the Effectiveness of Internal Control over FinancialReporting 115
Deloitte Anjin LLC<br> <br>9F., One IFC,<br><br><br>10, Gukjegeumyung-ro,<br> <br>Youngdeungpo-gu, Seoul<br><br><br>07326, Korea<br> <br><br><br><br>Tel: +82 (2) 6676 1000<br> <br>Fax: +82 (2) 6674 2114<br><br><br>www.deloitteanjin.co.kr
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INDEPENDENT AUDITOR’S REPORT

English Translation of Independent Auditor’s Report Originally Issued in Korean on March 18, 2024

To the Shareholders and the Board of Directors of KT Corporation:

Audit Opinion

We have audited the financial statements of KT Corporation (the “Company”), which comprise the statement of financial position as of December 31, 2023, and the statement of profit or loss, the statement of comprehensive income, statement of changes in shareholders’ equity and statement of cash flows, for the year then ended, and notes to the financial statements, including material accounting policy information.

In our opinion, the accompanying financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2023, and its financial performance and its cash flows for the year then ended in accordance with Korean International Financial Reporting Standards (“K-IFRS”).

We have also audited, in accordance with the Korean Standards on Auditing (“KSAs”), the internal control over financial reporting of the Company as of December 31, 2023, based on the Conceptual Framework for Design and Operation of Internal Control over Financial Reporting, and our report dated March 18, 2024 expressed an unqualified opinion.

Basis for Audit Opinion

We conducted our audit in accordance with the KSAs. Our responsibilities under those standards are further described in the Auditor’s Responsibilitiesfor the Audit of the Financial Statements section of our report. We are independent of the Company in accordance with the ethical requirements that are relevant to our audit of the 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 audit opinion.

Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee (“DTTL”), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as “Deloitte Global”) does not provide services to clients. Please see www.deloitte.com/kr/about to learn more about our global network of member firms.

Deloitte Touche Tohmatsu Limited is a private company limited by guarantee incorporated in England & Wales under company number 07271800, and its registered office is Hill House, 1 Little New Street, London, EC4a, 3TR, United Kingdom.

1

LOGO

Key Audit Matters

The key audit matters are those matters that, in our professional judgment, were of most significance in our audit of the financial statements of the current period. These matters were addressed in the context of our audit of the financial statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on these matters.

  • Occurrence and accuracy of Mobile service revenue and revenue related to sale of handset for mobile service (“Mobile revenue”)

(1) Reasons for Determining the matter as a Key Audit Matter

As described in Note 2.22 to the financial statements, the Company recognizes revenue at the point in time when it fulfills its performance obligations identified from contracts with customers. The Company provides various services and rate plans related to mobile revenue, and due to the large volume of transactions with customers, needs complex and elaborate information technology systems to accurately record occurrence of mobile revenue.

Given the magnitude and complexity of mobile revenue recorded by the billing system of the Company, we determined the occurrence and accuracy of mobile revenue recognized through the billing system as a key audit matter.

(2) How the matter has been addressed in the audit

Key audit procedures performed regarding the occurrence and accuracy of mobile revenue computed through the billing system include the following:

During the audit planning phase, we obtained an understanding of the Company’s accounting policies and<br>processes related to Mobile revenue recognition.
We performed an assessment on the environment of the general information technology systems used for collecting<br>usage of voice, text, and data, as well as handling billing and invoicing throughout the process of recording revenue and tested manual controls and general information technology controls.
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We reconciled the mobile revenue in the billing system with the revenue in the ledger.
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We performed substantive analytical procedures using historical data on mobile revenue by rate plan and<br>subscriber information.
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To verify the accuracy and completeness of the subscriber information used in our audit procedures, we selected<br>subscriber information from the billing system, reconciled the selections with contractual terms between the Company and customers, and corroborated if the subscribers were valid for the respective month.
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To verify the occurrence and accuracy of revenue recognition related to sale of handset for mobile service, we<br>selected transactions from the<br> sub-ledger, reconciled the selection with contractual terms between the Company and customers of the Company, and compared the billed amounts to receipts.
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2

LOGO

Responsibilities of Management and Those Charged with Governance for the Financial Statements

Management is responsible for the preparation and fair presentation of the accompanying financial statements in accordance with K-IFRS, and for such internal control as they determine is necessary to enable the preparation of financial statements that are free from material misstatement, whether due to fraud or error.

In preparing the financial statements, management of the Company is responsible for assessing the Company’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 Company or to cease operations, or has no realistic alternative but to do so.

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

Auditor’s Responsibilities for the Audit of the Financial Statements

Our objectives are to obtain reasonable assurance about whether the 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 KSAs 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 financial statements.

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

Identify and assess the risks of material misstatement of the financial statements, whether due to fraud or<br>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 audit 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.
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Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and<br>related disclosures made by management.
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Conclude on the appropriateness of the management’s use of the going concern basis of accounting and, based<br>on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Company’s ability to continue as a going concern. If we conclude that a material uncertainty exists, we<br>are required to draw attention in our auditor’s report to the related disclosures in the financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date<br>of our auditor’s report. However, future events or conditions may cause the Company to cease to continue as a going concern.
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3

LOGO

Evaluate the overall presentation, structure and content of the financial statements, including the disclosures,<br>and whether the financial statements represent the underlying transactions and events in a manner that achieves fair presentation.

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 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.

Other matters

The financial statements for the reporting period ending December 31, 2022, were audited by another external auditor, and their audit report dated March 8, 2023, expressed an unqualified opinion.

The engagement partner on the audit resulting in this independent auditor’s report is Lee, Dong Hyun.

LOGO

March 18, 2024

Notice to Readers

This report is effective as of March 18, 2024, the auditor’s report date. Certain subsequent events or circumstances may have occurred between the auditor’s report date and the time the auditor’s report is read. Such events or circumstances could significantly affect the financial statements and may result in modifications to the auditor’s report.

4

December 31, 2023 and 2022

Separate Statements of Financial Position

December 31, 2023 and 2022

(in millions of Korean won) Notes December 31, 2023 December 31, 2022
Assets
Current assets
Cash and cash equivalents 4,5,36 ~~W~~ 1,242,005 ~~W~~ 966,307
Trade and other receivables, net 4,6,36 3,190,269 3,055,649
Other financial assets 4,7,36 279,451 232,837
Inventories, net 8 368,117 349,870
Other current assets 9 2,008,723 1,998,825
Total current assets 7,088,565 6,603,488
Non-current assets
Trade and other receivables, net 4,6,36 370,717 526,988
Other financial assets 4,7,36 2,134,324 1,993,893
Property and equipment, net 10 11,492,776 11,540,162
Right-of-use assets 20 976,625 983,049
Investment properties, net 11,36 1,191,592 1,137,489
Intangible assets, net 12 1,487,848 1,855,679
Investments in subsidiaries, associates and joint ventures 13 4,796,606 4,879,219
Net defined benefit assets 17 60,590 180,689
Other non-current assets 9 709,276 717,118
Total non-current assets 23,220,354 23,814,286
Total assets ~~W~~ 30,308,919 ~~W~~ 30,417,774

5

KT Corporation

Separate Statements of Financial Position

December 31,2023 and 2022

(in millions of Korean won) December 31, 2023 December 31, 2022
Liabilities
Current liabilities
Trade and other payables 4,14,36 ~~W~~ 4,232,377 ~~W~~ 4,411,056
Borrowings 4,15,36 1,725,234 984,720
Other financial liabilities 4,7,36 660
Current income tax liabilities 29 148,136 127,944
Provisions 16 91,861 87,720
Deferred income 25 39,618 44,042
Other current liabilities 9 719,605 665,968
Total current liabilities 6,957,491 6,321,450
Non-current liabilities
Trade and other payables 4,14,36 739,766 979,050
Borrowings 4,15,36 5,834,699 6,510,841
Other financial liabilities 4,7,36 23,819 37,566
Net defined benefit liabilities 17 0
Provisions 16 90,493 79,374
Deferred income 25 145,334 158,161
Deferred income tax liabilities 29 796,087 763,113
Other non-current liabilities 9 677,691 710,139
Total non-current liabilities 8,307,889 9,238,244
Total liabilities 15,265,380 15,559,694
Equity
Share capital 21 1,564,499 1,564,499
Share premium 1,440,258 1,440,258
Retained earnings 22 12,544,425 12,347,403
Accumulated other comprehensive income 23 64,229 (72,672 )
Other components of equity 23 (569,872 ) (421,408 )
Total equity 15,043,539 14,858,080
Total liabilities and equity ~~W~~ 30,308,919 ~~W~~ 30,417,774

The above separate statements of financial position should be read in conjunction with the accompanying notes.

6

KT Corporation

Separate Statements of Profit or Loss

Years Ended December 31, 2023 and 2022

(in millions of Korean won, except per share amounts) Notes 2023 2022
Operating revenue 25 ~~W~~ 18,371,437 ~~W~~ 18,289,243
Operating expenses 26 17,186,045 17,121,140
Operating profit 1,185,392 1,168,103
Other income 27 327,527 408,025
Other expenses 27 319,586 228,723
Finance income 28 381,151 577,334
Finance costs 28 419,210 653,996
Profit before income tax 1,155,274 1,270,743
Income tax expense 29 221,937 506,993
Profit for the year ~~W~~ 933,337 ~~W~~ 763,750
Earnings per share
Basic earnings per share 30 ~~W~~ 3,741 ~~W~~ 3,153
Diluted earnings per share 30 3,739 3,152

The above separate statements of profit or loss should be read in conjunction with the accompanying notes.

7

KT Corporation

Separate Statements of Comprehensive Income

Years Ended December 31, 2023 and 2022

(in millions of Korean won) Notes 2023 2022
Profit for the year ~~W~~ 933,337 ~~W~~ 763,750
Other comprehensive income (loss)
Items that will not be reclassified to profit or loss:
Remeasurements of net defined benefit liabilities 17 (90,272 ) 114,154
Gain (loss) on valuation of equity instruments at fair value through other comprehensive<br>income 158,245 (149,638 )
Items that may be subsequently reclassified to profit or loss:
Loss on valuation of debt instruments at fair value through other comprehensive income 4 (26 ) (13,902 )
Valuation gain on cash flow hedges 4,7 16,030 56,259
Other comprehensive loss from cash flow hedges reclassified to profit or loss 4 (37,126 ) (91,012 )
Total other comprehensive income (loss) ~~W~~ 46,851 ~~W~~ (84,139 )
Total comprehensive income for the year ~~W~~ 980,188 ~~W~~ 679,611

The above separate statements of comprehensive income should be read in conjunction with the accompanying notes.

8

KT Corporation

Separate Statements of Changes in Equity

Years Ended December 31, 2023 and 2022

(in millions of Korean won) Notes Sharecapital Sharepremium Retainedearnings Accumulatedother comprehensiveincome Othercomponents<br><br><br>of<br> <br>equity Total
Balance at January 1, 2022 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 11,931,481 ~~W~~ 125,610 ~~W~~ (1,196,954 ) ~~W~~ 13,864,894
Comprehensive income
Profit for the year 763,750 763,750
Gain on valuation of financial assets at fair value through other comprehensive income 4,29 (11 ) (163,529 ) (163,540 )
Remeasurements of net defined benefit liabilities 17,29 114,154 114,154
Valuation gain on cash flow hedge 4,29 (34,753 ) (34,753 )
Total comprehensive income for the year 877,893 (198,282 ) 679,611
Transactions with equity holders
Dividends paid 31 (450,394 ) (450,394 )
Appropriation of retained earnings related to loss on disposal of treasury stock 22 (11,577 ) 11,577
Disposal of treasury stock 763,081 763,081
Others 888 888
Balance at December 31, 2022 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 12,347,403 ~~W~~ (72,672 ) ~~W~~ (421,408 ) ~~W~~ 14,858,080
Balance at January 1, 2023 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 12,347,403 ~~W~~ (72,672 ) ~~W~~ (421,408 ) ~~W~~ 14,858,080
Comprehensive income
Profit for the year 933,337 933,337
Loss on valuation of financial assets at fair value through other comprehensive income 4,29 222 157,997 158,219
Remeasurements of net defined benefit liabilities 17,29 (90,272 ) (90,272 )
Valuation loss on cash flow hedge 4,29 (21,096 ) (21,096 )
Total comprehensive income for the year 843,287 136,901 980,188
Transactions with equity holders
Dividends paid 31 (501,844 ) (501,844 )
Appropriation of retained earnings related to loss on 22 (44,421 ) 44,421
Acquisition of treasury stock (300,243 ) (300,243 )
Disposal of treasury stock 4,463 4,463
Retirement of treasury stock 22 (100,000 ) 100,000
Others 2,895 2,895
Balance at December 31, 2023 ~~W~~ 1,564,499 ~~W~~ 1,440,258 ~~W~~ 12,544,425 ~~W~~ 64,229 ~~W~~ (569,872 ) ~~W~~ 15,043,539

The above separate statements of changes in equity should be read in conjunction with the accompanying notes.

9

KT Corporation

Separate Statements of Cash Flows

Years Ended December 31, 2023 and 2022

(in millions of Korean won) Notes 2023 2022
Cash flows from operating activities
Cash generated from operations 32 ~~W~~ 4,657,805 ~~W~~ 4,128,185
Interest paid (246,516 ) (202,579 )
Interest received 191,289 211,170
Dividends received 115,324 98,874
Income tax paid (165,648 ) (173,297 )
Net cash inflow from operating activities 4,552,254 4,062,353
Cash flows from investing activities
Collection of loans 36,724 133,864
Disposal of current financial instruments at amortized cost 343,231 900
Disposal of financial assets at fair value through profit or loss 4,155 1,695
Disposal of financial assets at fair value through other comprehensive income 306
Disposal of investments in subsidiaries, associates and joint ventures 73,556 36,028
Disposal of property and equipment 30,010 60,619
Disposal of intangible assets 2,860 17,047
Disposal of right-of-use assets 458 96
Loans granted (30,107 ) (125,146 )
Acquisition of financial instruments at amortized cost (304,450 ) (343,794 )
Acquisition of financial assets at fair value through profit or loss (46,437 ) (115,415 )
Acquisition of financial assets at fair value through other comprehensive income (10,267 ) (442,176 )
Acquisition of investments in subsidiaries, associates and joint ventures (49,032 ) (348,607 )
Acquisition of property and equipment (2,928,008 ) (2,980,008 )
Acquisition of intangible assets (311,317 ) (307,689 )
Acquisition of right-of-use assets (926 ) (1,984 )
Net cash outflow from in investing activities (3,189,244 ) (4,414,570 )
Cash flows from financing activities
Proceeds from borrowings and bonds 2,207,827 1,741,962
Settlement of derivative instruments (inflow) 46,526 76,280
Dividend paid (501,844 ) (450,394 )
Repayments of borrowings and debentures (2,206,730 ) (1,359,117 )
Settlement of derivative instruments (outflow) (41,197 )
Acquisition of treasury stock (300,086 )
Decrease in lease liabilities (333,042 ) (357,337 )
Net cash outflow from financing activities 33 (1,087,349 ) (389,803 )
Effect of exchange rate change on cash and cash equivalents 37 (387 )
Net increase (decrease) in cash and cash equivalents 275,698 (742,407 )
Cash and cash equivalents
Beginning of the year 5 966,307 1,708,714
End of the year 5 ~~W~~ 1,242,005 ~~W~~ 966,307

The above separate statements of cash flows should be read in conjunction with the accompanying notes.

10

KT Corporation

Notes to the Separate Financial Statements

December 31, 2023 and 2022

1. General Information

KT Corporation (the “Company”) commenced operations on January 1, 1982, when it spun off from the Korea Communications Commission (formerly the Korean Ministry of Information and Communications) to provide telecommunication services and to engage in the development of advanced communications services under the Act of Telecommunications of Korea. The address of the Company’s registered office is 90, Buljeonga-ro, Bundang-gu, Seongnam City, Gyeonggi Province, Korea.

On October 1, 1997, upon the announcement of the Act on the Management of Government-Invested Institutions and the Privatization Law, the Company became a government-funded institution under the Commercial Code of Korea.

On December 23, 1998, the Company’s shares were listed on the Korea Exchange.

On May 29, 1999, the Company issued 24,282,195 additional shares and issued American Depository Shares (ADS), which represents new shares and 20,813,311 government-owned shares, on the New York Stock Exchange. On July 2, 2001, additional ADS, representing 55,502,161 government-shares, were issued on the New York Stock Exchange.

In 2002, the Company acquired the entire government-owned shares in accordance with the Korean government’s privatization plan. As of December 31, 2023, the Korean government does not own any shares in the Company.

11

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2. Significant Accounting Policies

The principal accounting policies applied in the preparation of these separate financial statements are set out below. These policies have been consistently applied to all the years presented, unless otherwise stated.

2.1 Basis of Preparation

The Company maintains its accounting records in Korean won and prepares statutory financial statements in the Korean language (Hangul) in accordance with International Financial Reporting Standards as adopted by the Republic of Korea (K-IFRS). The accompanying separate financial statements have been condensed, restructured and translated into English from the Korean language financial statements.

The separate financial statements of the Company have been prepared in accordance with Korean IFRS. These are the standards, subsequent amendments and related interpretations issued by the International Accounting Standards Board (IASB) that have been adopted by the Republic of Korea.

The financial statements have been prepared on a historical cost basis, except for the following:

Certain financial assets and liabilities (including derivative instruments)
Defined benefit pension plans – plan assets measured at fair value
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The preparation of the separate financial statement requires the use of critical accounting estimates. Management also needs to exercise judgement in applying the Company’s accounting policies. The areas involving a higher degree of judgment or complexity, or areas where assumptions and estimates are significant to the separate financial statements are disclosed in Note 3.

2.2 Changes in Accounting Policies and Disclosures

(1) New and amended standards and interpretations adopted by the Company

The Company has applied a number of new and amended standards and new interpretations issued that are effective accounting periods beginning on January 1, 2023.

K-IFRS 1117 Insurance Contract

K-IFRS 1117, which supersedes K-IFRS 1104 I nsurance C ontracts, establishes principles for recognition, measurement, and disclosure of insurance contracts and its main features include the measurement of insurance liabilities at present value of the fulfilment cash flows, recognition of insurance revenue based on accruals-based accounting, and separate presentation of insurance revenue, insurance service expenses, and insurance finance income or expenses.

The Company does not have any contracts that meet the definition of an insurance contract under K-IFRS 1117.

12

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

K-IFRS 1001 Presentation of Financial Statements and IFRS Practice<br>Statement 2 Making Materiality Judgements (Amendment)—Disclosure of Accounting Policies

The amendments change the requirements in K-IFRS 1001 with regard to disclosure of accounting policies. The amendments replace all instances of the term ‘significant accounting policies’ with ‘material accounting policy information’. Accounting policy information is material if, when considered together with other information included in an entity’s financial statements, it can reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements.

The supporting paragraphs in K-IFRS 1001 are also amended to clarify that accounting policy information that relates to immaterial transactions, other events or conditions is immaterial and need not be disclosed. Accounting policy information may be material because of the nature of the related transactions, other events or conditions, even if the amounts are immaterial. However, not all accounting policy information relating to material transactions, other events or conditions is itself material.

The IASB has also developed guidance and examples to explain and demonstrate the application of the ‘four-step materiality process’ described in IFRS Practice Statement 2.

K-IFRS 1001 Presentation of Financial Statements<br>(Amendment)—Disclosure of financial liabilities with condition to adjust exercise price

The amendments require disclosure of valuation gains or losses (limited to those recognized in the profit or loss) of the conversion options or warrants (or financial liabilities including them), if all or part of the financial instrument with exercise price that is adjusted depending on the issuer’s share price change is classified as financial liability as defined in paragraph 11 (2) of K-IFRS 1032.

K-IFRS 1008 Accounting Polices, Changes in Accounting Estimates andErrors (Amendment)—Definition of Accounting Estimates

The amendments replace the definition of a change in accounting estimates with a definition of accounting estimates. Under the new definition, accounting estimates are “monetary amounts in financial statements that are subject to measurement uncertainty”. The definition of a change in accounting estimates was deleted.

13

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

K-IFRS 1012 Income Taxes (Amendment)—Deferred Tax related to<br>Assets and Liabilities arising from a Single Transaction

The amendments introduce a further exception from the initial recognition exemption. Under the amendments, an entity does not apply the initial recognition exemption for transactions that give rise to equal taxable and deductible temporary differences.

Depending on the applicable tax law, equal taxable and deductible temporary differences may arise on initial recognition of an asset and liability in a transaction that is not a business combination and affects neither accounting nor taxable profit.

Following the amendments to K-IFRS 1012, an entity is required to recognise the related deferred tax asset and liability, with the recognition of any deferred tax asset being subject to the recoverability criteria in K-IFRS 1012.

K-IFRS 1012 Income Taxes (Amendment) - International Tax Reform:<br>Pillar Two Model Rules

The amendments clarify that the Standard applies to income taxes arising from tax law enacted or substantively enacted to implement the Pillar Two model rules published by the OECD, including tax law that implements qualified domestic minimum top-up taxes described in those rules.

The amendments introduce a temporary exception to the accounting requirements for deferred taxes in IAS 12, so that an entity would neither recognise nor disclose information about deferred tax assets and liabilities related to Pillar Two income taxes.

Following the amendments, the Company is required to disclose that it has applied the exception and to disclose separately its current tax expense (income) related to Pillar Two income taxes.

There is no significant impact of the amendments listed above on consolidated financial statements.

14

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) New and revised standards and interpretations in issue but not yet effective or adopted by the Company

At the date of authorization of these financial statements, the Company has not applied the following new and amended K-IFRS standards that have been issued but are not yet effective:

K-IFRS 1001 Presentation of Financial Statements (Amendment<br>in 2020) – Classification of Liabilities as Current or Non-current

The amendments clarify that the classification of liabilities as current and non-current is based on rights that are existing at the end of the reporting period, specify that classification is unaffected by expectations about whether an entity will exercise its right to defer settlement of a liability, explain that rights are in existence if covenants are complied with at the end of the reporting period, and introduce a definition of ‘settlement’ to make clear that settlement refers to the transfer to the counterparty of cash, equity instruments, other assets or services.

K-IFRS 1001 Presentation of Financial Statements (Amendment<br>in 2023)—Non-current Liabilities with Covenants

The amendments specify that only covenants that an entity is required to comply with on or before the end of the reporting period affect the entity’s right to defer settlement of a liability for at least twelve months after the reporting date. Such covenants affect whether the right exists at the end of the reporting period, even if compliance with the covenant is assessed only after the reporting date.

The amendments also specifies that the right to defer settlement of a liability for at least twelve months after the reporting date is not affected if an entity only has to comply with a covenant after the reporting period. However, if the entity’s right to defer settlement of a liability is subject to the entity complying with covenants within twelve months after the reporting period, an entity discloses information that enables users of financial statements to understand the risk of the liabilities becoming repayable within twelve months after the reporting period. This would include information about the covenants (including the nature of the covenants and when the entity is required to comply with them), the carrying amount of related liabilities and facts and circumstances, if any, that indicate that the entity may have difficulties complying with the covenants.

The amendments are applied retrospectively for annual reporting periods beginning on or after 1 January 2024. Earlier application of the amendments is permitted. If an entity applies the amendments for an earlier period, it is also required to apply the 2020 amendments early.

15

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

K-IFRS 1007 Cash Flow Statemen and K-IFRS 1107 FinancialInstruments Disclosure (Amendment) - Supplier Finance Agreements

The amendments add a disclosure objective in K-IFRS 1007 Cash Flow Statement stating that an entity is required to disclose information about supplier finance agreements that enables users of financial statements to assess the effects of those arrangements on the Company’s liabilities and cash flows. In addition, K-IFRS 1117 was amended to add supplier finance arrangements as an example within the requirements to disclose information about an entity’s exposure to concentration of liquidity risk.

The term ‘supplier finance agreements’ is not defined; instead, the amendment describe the characteristics of an arrangement for which an entity would be required to provide the information.

To meet the disclosure objective, an entity will be required to disclose in aggregate for its supplier finance arrangements:

The terms and conditions of an agreement
The carrying amount, and associated line items presented in the entity’s statement of financial position, of<br>the liabilities that are part of the arrangements
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16

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

The carrying amount, and associated line items for which the suppliers have already received payment from the<br>finance providers
Ranges of payment due dates for both those financial liabilities that are part of a supplier finance arrangement<br>and comparable trade payables that are not part of a supplier finance arrangement
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Types of non-cash changes in the carrying amount of financial liabilities<br>corresponding to supplier finance agreements and their impact
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Liquidity risk information
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The above amendments, which contain specific transition reliefs for the first annual reporting period in which an entity applies the amendments, are applicable for annual reporting periods beginning on or after 1 January 2024, with early application permitted.

K-IFRS 1116 Leases (Amendment)—Lease Liability in a Sale and Leaseback

The amendments add a subsequent measurement requirements for sale and leaseback transactions that satisfy the requirements in K-IFRS 1115 Revenue from contracts with customers. The amendments require the seller-lessee to determine ‘lease payments’ or ‘revised lease payments’ in such a way that the seller-lessee does not recognise a gain or loss that relates to the right of use asset retained by the seller-lessee, after the lease commencement date.

The above amendments are applicable for annual reporting periods beginning on or after 1 January 2024, with early application permitted.

K-IFRS 1001 Presentation of Financial Statements (Amendment in<br>2023)—Disclosure of Virtual Assets

The amendments, in addition to additional disclosure requirements required by other Standards for transactions related to virtual assets, setting out the disclosure requirements in each case of 1) holding virtual assets; 2) holding virtual assets on behalf of customers; and 3) issuing virtual assets.

When holding a virtual asset, disclosure on the general information of the virtual asset, the applied accounting policy, and the acquisition method, acquisition cost, and the fair value of each virtual asset at the end of the reporting period should be disclosed. In addition, when issuing a virtual asset, the entity’s obligations and the status of fulfilment of the obligation related to the issued virtual asset, the timing and amount of the recognized revenue of the sold virtual asset, the quantity of virtual assets held after issuance, and important contract details should be disclosed.

17

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

The above amendments are applicable for annual reporting periods beginning on or after 1 January 2024, with early application permitted.

The Company is reviewing the impact of the above-listed amendments on the financial statements.

2.3 Subsidiaries, Associates and Joint Ventures

The financial statements of the Company are the separate financial statements prepared in accordance with Korean IFRS 1027 SeparateFinancial Statements. Investments in subsidiaries, joint ventures and associates are recognized at cost under the direct equity method. Management applied the carrying amounts under the previous K-GAAP at the time of transition to Korean IFRS as deemed cost of investments. The Company recognizes dividend income from subsidiaries, joint ventures and associates in profit or loss when its right to receive the dividend is established.

18

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2.4 Foreign Currency Translation
(a) Functional and presentation currency
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Items included in the financial statements of the Company are measured using the currency of the primary economic environment in which the Company operates (its functional currency). The financial statements are presented in Korean won, which is the functional currency of the Company and the presentation currency for the financial statements.

(b) Transactions and balances

Foreign currency transactions are translated into the functional currency using the exchange rates at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation of monetary assets and liabilities denominated in foreign currencies at year end exchange rates are generally recognized in profit or loss. They are deferred in other comprehensive income if they relate to qualifying cash flow hedges and qualifying effective portion of net investment hedges or are attributable to monetary part of the net investment in a foreign operation.

Foreign exchange gains and losses that relate to financial instruments are presented in the statement of profit or loss, within finance costs. All other foreign exchange gains and losses are presented in the statement of profit or loss within ‘other income’ or ‘other expense’.

Non-monetary items that are measured at fair value in a foreign currency are translated using the exchange rates at the date when the fair value was determined. Translation differences on assets and liabilities carried at fair value are reported as part of the fair value gain or loss. For example, translation differences on non-monetary assets and liabilities, such as equities held at fair value through profit or loss, are recognized in profit or loss as part of the fair value gain or loss and translation differences on non-monetary assets, such as equities classified as available-for-sale financial assets, are recognized in other comprehensive income.

19

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2.5 Financial Assets
(a) Classification
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The Company classifies its financial assets in the following measurement categories:

those to be measured at fair value through profit or loss
those to be measured at fair value through other comprehensive income, and
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those to be measured at amortized cost.
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The classification depends on the Company’s business model for managing the financial assets and the contractual terms of the cash flows.

For financial assets measured at fair value, gains and losses will either be recorded in profit or loss or other comprehensive income. For investments in debt instruments, this will depend on the business model in which the investment is held. The Company reclassifies debt investments when, and only when, its business model for managing those assets changes.

For investments in equity instruments that are not held for trading, this will depend on whether the Company has made an irrevocable election at the time of initial recognition to account for the equity investment at fair value through other comprehensive income. Changes in fair value of the investments in equity instruments that are not accounted for as other comprehensive income are recognized in profit or loss.

(b) Measurement

At initial recognition, the Company measures a financial asset at its fair value plus, in the case of a financial asset not at fair value through profit or loss, transaction costs that are directly attributable to the acquisition of the financial asset or the issuance of the financial liabilities. Transaction costs of financial assets carried at fair value through profit or loss are expensed in profit or loss.

Hybrid (combined) contracts with embedded derivatives are considered in their entirety when determining whether their cash flows are solely payment of principal and interest.

A. Debt instruments

Subsequent measurement of debt instruments depends on the Company’s business model for managing the asset and the cash flow characteristics of the asset. The Company classifies its debt instruments into one of the following three measurement categories:

Amortized cost: Assets that are held for collection of contractual cash flows where those cash flows represent<br>solely payments of principal and interest are measured at amortized cost. A gain or loss on a debt investment that is subsequently measured at amortized cost and is not part of a hedging relationship is recognized in profit or loss when the asset is<br>derecognized or impaired. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate method.

20

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Fair value through other comprehensive income: Assets that are held for collection of contractual cash flows and<br>for selling the financial assets, where the assets’ cash flows represent solely payments of principal and interest, are measured at fair value through other comprehensive income. Movements in the carrying amount are taken through other<br>comprehensive income, except for the recognition of impairment loss (and reversal of impairment loss), interest income and foreign exchange gains and losses which are recognized in profit or loss. When the financial asset is derecognized, the<br>cumulative gain or loss previously recognized in other comprehensive income is reclassified from equity to profit or loss. Interest income from these financial assets is included in ‘finance income’ using the effective interest rate<br>method. Foreign exchange gains and losses are presented in ‘finance income’ or ‘finance costs’ and impairment loss in ‘finance costs’ or ‘operating expenses’.
Fair value through profit or loss: Assets that do not meet the criteria for amortized cost or fair value through<br>other comprehensive income are measured at fair value through profit or loss. A gain or loss on a debt investment that is subsequently measured at fair value through profit or loss and is not part of a hedging relationship is recognized in profit or<br>loss and presented net in the statement of profit or loss within ‘finance income or finance costs’ in the period in which it arises.
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B. Equity instrument
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The Company subsequently measures all equity investments at fair value. Where the Company’s management has elected to present fair value gains and losses on equity investments in other comprehensive income, there is no subsequent reclassification of fair value gains and losses to profit or loss following the derecognition of the investment. Dividend income from such investments continue to be recognized in profit or loss as ‘finance income’ when the Company’s right to receive payments is established.

Changes in the fair value of financial assets at fair value through profit or loss are recognized in ‘finance income’ or ‘finance costs’ in the statement of profit or loss as applicable. Impairment loss (reversal of impairment loss) on equity investments, measured at fair value through other comprehensive income, are not reported separately from other changes in fair value.

(c) Impairment

The Company assesses on a forward looking basis the expected credit losses associated with its debt instruments carried at amortized cost and fair value through other comprehensive income. The impairment methodology applied depends on whether there has been a significant increase in credit risk. For trade receivables and lease receivables, the Company applies the simplified approach, which requires expected lifetime credit losses to be recognized from initial recognition of the receivables.

(d) Recognition and derecognition

Regular way purchases and sales of financial assets are recognized or derecognized on trade-date, the date on which the Company commits to purchase or sell the asset. Financial assets are derecognized when the rights to receive cash flows from the financial assets have expired or have been transferred and the Company has transferred substantially all the risks and rewards of ownership.

21

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

If a transfer does not result in derecognition because the Company has retained substantially all the risks and rewards of ownership of the transferred asset, the Company continues to recognize the transferred asset in its entirety and recognizes a financial liability for the consideration received.

(e) Offsetting of financial instruments

Financial assets and liabilities are offset and the net amount reported in the statements of financial position where there is a legally enforceable right to offset the recognized amounts and there is an intention to settle on a net basis or realize the assets and settle the liability simultaneously. The legally enforceable right must not be contingent on future events and must be enforceable in the normal course of business and in the event of default, insolvency or bankruptcy of the Company or the counterparty.

2.6 Derivative Instruments

Derivatives are initially recognized at fair value on the date a derivative contract is entered into and are subsequently remeasured to their fair value at the end of each reporting period. The accounting treatment for subsequent changes in fair value depends on whether the derivative is designated as a hedging instrument, and if so, the nature of the item being hedged. The Company has hedge relationships and designates certain derivatives as:

hedges of a particular risk associated with the cash flows of recognized assets and liabilities and highly<br>probable forecast transactions (cash flow hedges)

At inception of the hedge relationship, the Company documents the economic relationship between hedging instruments and hedged items including whether changes in the cash flows of the hedging instruments are expected to offset changes in the cash flows of hedged items.

The fair values of derivative financial instruments designated in hedge relationships are disclosed in Note 36.

The full fair value of a hedging derivative is classified as a non-current asset or non-current liability when the remaining maturity of the hedged item is more than 12 months; it is classified as a current asset or liability when the remaining maturity of the hedged item is less than 12 months. A non-derivative financial asset and a non-derivative financial liability is classified as a current or non-current based on its expected maturity and its settlement, respectively.

The effective portion of changes in fair value of derivatives that are designated and qualify as cash flow hedges is recognized in the cash flow hedge reserve within equity, and the ineffective portion is recognized in ‘finance income (costs)’.

Amounts of changes in fair value of effective hedging instruments accumulated in equity are recognized as ‘finance income (costs)’ for the periods when the corresponding transactions affect profit or loss.

22

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

When a hedging instrument expires, or is sold, terminated, exercised, or when a hedge no longer meets the criteria for hedge accounting, any accumulated cash flow hedge reserve at that time remains in equity until the forecast transaction occurs, resulting in the recognition of a non-financial asset such as inventory. When the forecast transaction is no longer expected to occur, the cash flow hedge reserve and deferred costs of hedging that were reported in equity are immediately reclassified to profit or loss.

2.7 Trade Receivables

Trade receivables are recognized initially at the amount of consideration that is unconditional, unless they contain significant financing components when they are recognized at fair value. Trade receivables are recognized initially at fair value and subsequently measured at amortized cost using the effective interest method, less loss allowance. See Note 6 for further information about the Company’s accounting treatment for trade receivables and Note 2.5 (c) for a description of the Company’s accounting policy on impairment.

2.8 Inventories

Inventories are stated at the lower of cost and net realizable value. Cost is determined using the moving average method, except for inventories in-transit(specific identification method).

2.9 Property and Equipment

Property and equipment are stated at historical cost less accumulated depreciation and accumulated impairment losses. Historical cost includes expenditures that is directly attributable to the acquisition of the items.

Depreciation of all property and equipment, except for land, is calculated using the straight-line method to allocate their cost, net of their residual values, over their estimated useful lives as follows:

Useful Life
Buildings 10 – 40 years
Structures 10 – 40 years
Telecommunications equipment 2 – 40 years
Vehicles 4 years
Tools 4 years
Office equipment 2 – 4 years

The depreciation method, residual values, and useful lives of property and equipment are reviewed at the end of each reporting period and, if appropriate, accounted for as changes in accounting estimates.

23

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2.10 Investment Property

Real estate held for rental income or investment gains is classified as investment property and right—of-use asset. An investment property is measured initially at its cost. After recognition as an asset, investment property is carried at cost less accumulated depreciation and impairment losses. Investment property, except for land, is depreciated using the straight-line method over their useful lives from 10 to 40 years.

2.11 Intangible Assets
(a) Goodwill
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Goodwill represents the excess of the aggregate of the consideration transferred, the amount of any non-controlling interest in the acquiree, and the acquisition date fair value of the Company’s previously held equity interest in the acquiree over the net acquired identifiable assets at the date of acquisition. Goodwill is tested annually for impairment and carried at cost less accumulated impairment losses.

For the purpose of impairment testing, goodwill acquired in a business combination is allocated to each of the CGUs, or group of CGUs, that is expected to benefit from the synergies of the combination. Goodwill is monitored at the operating segment level.

(b) Intangible assets, except for goodwill

Intangible assets, except for goodwill, are initially recognized at its historical cost, and carried at cost less accumulated amortization and accumulated impairment losses. Membership rights (condominium membership and golf membership) and broadcast rights that have indefinite useful life are not subject to amortization because there is no foreseeable limit to the period over which the assets are expected to be utilized. The Company amortizes intangible assets with a limited useful life using the straight-line method over the following periods:

Useful Life
Development costs 6 years
Software 6 years
Industrial property rights 5 – 50 years
Frequency usage rights 5 – 10 years
Others ^1^ 2 – 50 years
^1^ Membership rights (condominium membership and golf membership) included in others are classified as intangible<br>assets with indefinite useful life.
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24

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2.12 Borrowing Costs

General and specific borrowing costs that are directly attributable to the acquisition, construction or production of a qualifying asset are capitalized during the period of time that is required to complete and prepare the asset 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. Other borrowing costs are expensed in the period in which they are incurred.

2.13 Government Grants

Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Company will comply with all attached conditions. Government grants related to assets are presented in the statement of financial position by setting up the grant as deferred income that is recognized in profit or loss on a systematic basis over the useful life of the asset. Grants related to income are deferred and presented as a credit in the statement of profit or loss within ‘other income’.

2.14 Impairment of Non-Financial Assets

Goodwill and intangible assets that have an indefinite useful life are not subject to amortization and are tested annually for impairment, or more frequently if events or changes in circumstances indicate that they might be impaired. The Company estimates the recoverable amount for each asset, and, in cases when the recoverable amount cannot be estimated for an individual asset, the recoverable amount of the cash generating unit to which the asset belongs is estimated. Corporate assets are allocated to individual cash generating units on a reasonable and consistent basis and if they cannot be allocated to individual cash generating units, they are allocated to the smallest group of cash generating units on a reasonable and consistent basis. An impairment loss is recognized for the amount by which the asset’s carrying amount exceeds its recoverable amount (higher of its fair value less costs of disposal and value in use). Impairment loss on non-financial assets other than goodwill are evaluated for reversal at the end of each reporting period.

2.15 Trade and Other Payables

These amounts represent liabilities for goods and services provided to the Company prior to the end of reporting period which are unpaid. Trade and other payables are presented as current liabilities, unless payment is not due within 12 months after the reporting period. They are recognized initially at their fair value and subsequently measured at amortized cost using the effective interest method.

25

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2.16 Financial Liabilities
(a) Classification and measurement
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Financial liabilities at fair value through profit or loss are financial instruments held for trading. A financial liability is held for trading if it is incurred principally for the purpose of repurchasing in the near term. Derivatives that are not designated as hedging instruments or derivatives separated from financial instruments containing embedded derivatives are also categorized as held for trading.

The Company classifies non-derivative financial liabilities, except for financial liabilities at fair value through profit or loss, financial guarantee contracts and financial liabilities that arise when a transfer of financial assets does not qualify for derecognition, as financial liabilities carried at amortized cost and present as ‘trade payables and other payables’, ‘borrowings’, and ‘other financial liabilities’ in the statement of financial position.

Borrowings are initially recognized as the amount obtained by subtracting the transaction cost incurred from the fair value and is then measured as amortized cost. The difference between the consideration received (net of transaction cost) and the redemption amount is recognized as profit or loss over the period using the effective interest rate method. Fees paid to receive the borrowing limit are recognized as transaction costs for loans to the extent that they are likely to be borrowed as part or all of the borrowing limit. In this case, the fee will be deferred until draw-down occurs. There is a high possibility that borrowings will be executed as part or all of the borrowing limit agreement (relevant fees to the extent that there is no evidence) are recognized as assets as advance payments for liquidity services and amortized over the relevant borrowing limit period.

Preferred shares that require mandatory redemption at a particular date are classified as liabilities. Interest expenses on these preferred shares using the effective interest method are recognized in the statement of profit or loss as ‘finance costs’, together with interest expenses recognized from other financial liabilities.

Borrowings are classified as current liabilities unless the Company has an unconditional right to defer settlement of the liability for at least 12 months after the reporting period.

(b) Derecognition

Financial liabilities are removed from the statement of financial position when it is extinguished; for example, when the obligation specified in the contract is discharged or cancelled or expired or when the terms of an existing financial liability are substantially modified. The difference between the carrying amount of a financial liability extinguished or transferred to another party and the consideration paid (including any non-cash assets transferred or liabilities assumed) is recognized in profit or loss.

26

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

The Company’s financial liabilities at fair value through profit or loss are financial instruments held for trading and financial liabilities designated as at fair value through profit or loss. A financial liability is held for trading if it is incurred principally for the purpose of repurchasing in the near term. A derivative that is not a designated as hedging instruments and an embedded derivative that is separated are also classified as held for trading. Financial liabilities designed as at fair value through profit or loss are structured financial liabilities containing embedded derivatives issued by the Company.

2.17 Employee Benefits
(a) Post-employment benefits
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The Company operates both defined contribution and defined benefit pension plans.

A defined contribution plan is a pension plan under which the Company pays fixed contributions into a separate entity. The contributions are recognized as employee benefit expenses when an employee has rendered service.

A defined benefit plan is a pension plan that is not a defined contribution plan. Generally, post-employment benefits are payable after the completion of employment, and the benefit amount depended on the employee’s age, periods of service or salary levels. The liability recognized in the statement of financial position in respect of defined benefit pension plans is the present value of the defined benefit obligation at the end of the reporting period less the fair value of plan assets. The defined benefit obligation is calculated annually 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 approximating to the terms of the related obligation. Remeasurement gains and losses arising from experience adjustments and changes in actuarial assumptions are recognized in the period in which they occur, directly in other comprehensive income.

Changes in the present value of the defined benefit obligation resulting from plan amendments or curtailments are recognized immediately in profit or loss as past service costs.

(b) Termination benefits

Termination benefits are payable when employment is terminated by the Company before the normal retirement date, or whenever an employee accepts voluntary redundancy in exchange for these benefits. The Company recognizes termination benefits at the earlier of the following dates: when the entity can no longer withdraw the offer of those benefits or when the entity recognizes costs for a restructuring.

27

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(c) Long-term employee benefits

Certain entities within the Company provide long-term employee benefits that are entitled to employees with service period at least five years and above. The expected costs of these benefits are accrued over the period of employment using the same accounting methodology as used for defined benefit pension plans. The Company recognizes service cost, net interest on other long-term employee benefits and remeasurements as profit or loss for the year. These liabilities are valued annually by an independent qualified actuary.

2.18 Share-Based Payments

Equity-settled share-based payment is recognized at fair value of equity instruments granted, and employee benefit expense is recognized over the vesting period. At the end of each period, the Company revises its estimates of the number of options that are expected to vest based on the non-market vesting and service conditions. It recognizes the impact of the revision to original estimates, if any, in profit or loss, with a corresponding adjustment to equity.

2.19 Provisions

Provisions for service warranties, make good obligation, and legal claims are recognized when the Company has a present legal or constructive obligation as a result of past events, it is probable that an outflow of resources will be required to settle the obligation and the amount can be reliably estimated. Provisions are measured at the present value of management’s best estimate of the expenditure required to settle the present obligation at the end of the reporting period, and the increase in the provision due to the passage of time is recognized as interest expense.

2.20 Leases
(a) Lessee
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The Company leases various repeater server racks, offices, communication line facilities, machinery, and cars.

Contracts may contain both lease and non-lease components. The Company allocates the consideration in the contract to the lease and non-lease components based on their relative stand-alone prices.

Assets and liabilities arising from a lease are initially measured on a present value basis. Lease liabilities include the net present value of the following lease payments:

Fixed payments (including in-substance fixed payments), less any lease<br>incentives receivable
Variable lease payment that are based on an index or a rate, initially measured using the index or rate as at the<br>commencement date
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Amounts expected to be payable by the Company (the lessee) under residual value guarantees
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28

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

The exercise price of a purchase option if the Company (the lessee) is reasonably certain to exercise that<br>option, and
Payments of penalties for terminating the lease, if the lease term reflects the Company (the lessee) exercising<br>that option
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Measurement of lease liability also includes payments to be made in optional periods if the lessee is reasonably certain to exercise an option to extend the lease.

The Company determines the lease term as the non-cancellable period of a lease, together with both (a) periods covered by an option to extend the lease if the lessee is reasonably certain to exercise that option; and (b) periods covered by an option to terminate the lease if the lessee is reasonably certain not to exercise that option. When the lessee and the lessor each has the right to terminate the lease without permission from the other party, the Company should consider a termination penalty in determining the period for which the contract is enforceable.

The lease payments are discounted using the interest rate implicit in the lease. If that rate cannot be determined, the lessee’s incremental borrowing rate is used, which is the rate that the lessee would have to pay to borrow the funds necessary to obtain an asset of similar value in a similar economic environment with similar terms and conditions.

The Company is exposed to potential future increases in variable lease payments based on an index or rate, which are not included in the lease liability until they take effect. When adjustments to lease payments based on an index or rate take effect, the lease liability is reassessed and adjusted against the right-of-use asset.

Each lease payment is allocated between the liability and finance cost. The finance cost is charged to profit or loss over the lease period in order to produce a constant periodic rate of interest on the remaining balance of the liability for each period.

Right-of-use assets are measured at cost comprising the following:

the amount of the initial measurement of lease liability
any lease payments made at or before the commencement date less any lease incentives received<br>
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any initial direct costs
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restoration costs
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The right-of-use asset is depreciated over the shorter of the asset’s useful life and the lease term on a straight-line basis. If the Company is reasonably certain to exercise a purchase option, the right-of-use asset is depreciated over the underlying asset’s useful life.

Payments associated with short-term leases and leases of low-value assets are recognized on a straight-line basis as an expense in profit or loss. Short-term leases are leases with a lease term of 12 months or less, such as vehicles, machinery, and others. Low-value assets are comprised of tools, office equipment, and others.

29

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(b) Lessor

Lease income from operating leases where the Company is a lessor is recognized in income on a straight-line basis over the lease term. Initial direct costs incurred in obtaining an operating lease are added to the carrying amount of the underlying asset and recognized as expense over the lease term on the same basis as lease income. The respective leased assets are included in the statement of financial position based on their nature.

(c) Extension and termination options

Extension and termination options are included in a number of property and equipment leases across the Company. These terms are used to maximize operational flexibility in terms of managing contracts. The majority of extension and termination options held are exercisable only by the Company and not by the respective lessor. Information on critical accounting estimates and assumptions related to the determination of the lease term is presented in Note 3.

2.21 Share Capital

The Company classifies ordinary shares as equity.

Where the Company purchases its own shares, the consideration paid including any directly attributable incremental costs is deducted from equity attributable to the equity holders of the Company until the share are cancelled or reissued. When these treasury shares are reissued, any consideration received is included in equity attributable to the equity holders of the Company.

2.22 Revenue Recognition
(a) Identifying performance obligations
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The Company mainly provides telecommunication services and sells handsets. The Company identifies performance obligations with a customer such as providing telecommunication services, selling handsets, and others. Revenue from handsets is recognized when a performance obligation is satisfied by transferring promised goods to customers, and the revenue from telecommunication services is recognized over the estimated contract periods of each service by transferring promised services to customers.

(b) Allocation the transaction price and revenue recognition

The Company allocates the transaction price to each performance obligation identified in the contract based on a relative stand-alone selling price of the goods or services being provided to the customer. To allocate the transaction price to each performance obligation on a relative stand-alone price basis, the Company determines the stand-alone selling price at contract inception of the distinct good or service underlying each performance obligation in the contract and allocates the transaction price on a relative stand-alone selling price basis. The stand-alone selling price is the price at which the Company would sell a promised good or service separately to the customer. The best evidence of a stand-alone selling price is the observable price of a good or service when the Company sells that good or service separately in similar circumstances and to similar customers. The Company recognizes the allocated amount as contract assets or contract liabilities, and amortizes it through the remaining period which is adjusted in operating income.

30

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(c) Incremental contract acquisition costs

The Company pays commission fees when new customers subscribe to telecommunication services. The incremental contract acquisition costs are those commission fees that the Company incurs to acquire a contract with a customer that would not have been incurred if the contract had not been acquired. The Company recognizes the incremental contract acquisition costs as an asset and amortizes it over the expected period of benefit. However, as a practical expedient, the Company may recognize the incremental contract acquisition cost as an expense when it is incurred if the amortization period of the asset is one year or less.

2.23 Current and Deferred Tax

The tax expense for the period consists of current and deferred tax. Current and deferred tax is recognized in profit or loss, except to the extent that it relates to items recognized in other comprehensive income or directly in equity. In this case, the tax is also recognized in other comprehensive income or directly in equity, respectively.

The current income tax expense is measured at the amount expected to be paid to taxation authorities, using the tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period.

Management periodically evaluates positions taken in tax returns with respect to situations in which applicable tax regulation is subject to interpretation, and considers whether it is probable that a taxation authority will accept an uncertain tax treatment. The Company measures its tax balances either based on the most likely amount or the expected value, depending on which method provides a better prediction of the resolution of the uncertainty.

Deferred income tax is provided in full, using the liability method, on temporary differences arising between the tax bases of assets and liabilities and their carrying amounts in the separate financial statements. However, deferred income tax is not accounted for if it arises from initial recognition of an asset or liability in a transaction other than a business combination that at the time of the transaction affects neither accounting profit nor taxable profit or loss.

Deferred tax assets are recognized only if it is probable that future taxable amounts will be available to utilize those temporary differences and losses.

The Company recognizes a deferred tax liability for all taxable temporary differences associated with investments in subsidiaries, associates, and interests in joint arrangements, except to the extent that the Company 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. In addition, the Company recognizes a deferred tax asset for all deductible temporary differences arising from such investments to the extent that it is probable the temporary difference will reverse in the foreseeable future and taxable profit will be available against which the temporary difference can be utilized.

Deferred tax assets and liabilities are offset when there is a legally enforceable right to offset current tax assets and liabilities and when the deferred tax balances relate to the same taxation authority.

31

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Current tax assets and liabilities are offset when the Company has a legally enforceable right to offset and intends either to settle on a net basis, or to realize the assets and settle the liability simultaneously.

2.24 Dividend

Dividend distribution to the Company’s shareholders is recognized as a liability in the financial statements in the period in which the dividends are approved by the Company’s shareholders.

2.25 Approval on Issuance of the Separate Financial Statements

The separate financial statements of 2023 were approved for issuance by the Board of Directors on February 7, 2024 and are subject to change with the approval of shareholders at their Annual General Meeting.

3. Critical Accounting Estimates and Assumptions

The preparation of financial statements requires the Company to make estimates and assumptions concerning the future. Management also needs to exercise judgement in applying the Company’s accounting policies. Estimates and assumptions are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. As the resulting accounting estimates will, by definition, seldom equal the actual results, it poses significant risk of resulting in a material adjustment.

Estimates and assumptions that have significant risks of causing a material adjustment to the carrying amounts of assets and liabilities within the next financial year are discussed below. Additional information of significant judgement and assumptions of certain items are included in relevant notes.

3.1 Impairment of Non-Financial Assets (including Goodwill)

The Company determines the recoverable amount of a cash generating unit (CGU) based on fair value or value-in-use calculations to assess non-financial assets (including goodwill) for impairment (Notes 12 and 13).

3.2 Income Taxes

The Company’s taxable income generated from these operations are subject to income taxes based on tax laws and interpretations of tax authorities in numerous jurisdictions. There are many transactions and calculations for which the ultimate tax determination is uncertain (Note 29).

If a certain portion of the taxable income is not used for investments or increase in wages or dividends in accordance with the Tax Systemfor Recirculation of Corporate Income, the Company is liable to pay additional income tax calculated based on the tax laws. Accordingly, the measurement of current and deferred income tax is affected by the tax effects from the new system. As the Company’s income tax is dependent on the investments as well as wage increase, there is uncertainty in measuring the final tax effects.

32

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

3.3 Fair Value of Financial Instruments

The fair value of financial instruments that are not traded in an active market is determined by using valuation techniques. The Company uses its judgment to select a variety of methods and makes assumptions that are mainly based on market conditions existing at the end of each reporting period (Note 36).

3.4 Net Defined Benefit Liability

The present value of net defined benefit liability depends on a number of factors that are determined on an actuarial basis using a number of assumptions including the discount rate (Note 17).

3.5 Amortization of Contract Assets, Contract Liabilities and Contract Cost Assets

Contract assets, contract liabilities and contract cost assets recognized under the application of K-IFRS 1115 are amortized over the expected periods of customer relationships. The estimate of the expected terms of customer relationship is based on the historical data. If management’s estimate changes, it may cause significant differences in the timing of revenue recognition and amounts recognized.

3.6 Critical Judgements in Determining the Lease Term

In determining the lease term, management considers all facts and circumstances that create an economic incentive to exercise an extension option, or not exercise a termination option. Extension options (or periods after termination options) are only included in the lease term if the lease is reasonably certain to be extended (or not terminated).

For leases of properties, machinery, and communication line facilities, the following factors are normally the most relevant:

If there are significant penalties to terminate (or not extend), the Company is typically reasonably certain to<br>extend (or not terminate).
If any leasehold improvements are expected to have a significant remaining value, the Company is typically<br>reasonably certain to extend (or not terminate).
--- ---
Otherwise, the Company considers other factors including historical lease durations and the costs and business<br>disruption required to replace the leased asset.
--- ---

The lease term is reassessed if an option is actually exercised (or not exercised) or the Company becomes obliged to exercise (or not exercise) it. The assessment of reasonable certainty is only revised if a significant event or a significant change in circumstances occurs, which affects this assessment, and that is within the control of the lessee.

33

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

4. Financial Instruments by Category

Financial instruments by category as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Financial assets Financial assets atamortized cost Financial assets atfair value throughprofit or loss Financial assets atfair value throughother comprehensiveincome Derivatives<br><br><br>used forhedging Total
Cash and cash equivalents ~~W~~ 1,242,005 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 1,242,005
Trade and other receivables 3,444,788 116,198 3,560,986
Other financial assets 377,996 441,321 1,437,684 156,774 2,413,775
(in millions of Korean won) December 31, 2023
Financial liabilities Financial liabilities atamortized cost Financial liabilities atfair value throughprofit and loss Derivatives<br><br><br>used for<br><br><br>hedging Others Total
Trade and other payables ~~W~~ 4,659,037 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 4,659,037
Borrowings 7,559,933 7,559,933
Other financial liabilities 1,403 23,076 24,479
Lease liabilities 851,610 851,610
(in millions of Korean won) December 31, 2022
Financial assets Financial assets atamortized cost Financial assets atfair value throughprofit or loss Financial assets atfair value throughother comprehensiveincome Derivatives<br><br><br>used forhedging Total
Cash and cash equivalents ~~W~~ 966,307 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 966,307
Trade and other receivables 3,453,513 129,124 3,582,637
Other financial assets 416,294 410,388 1,214,059 185,989 2,226,730
(in millions of Korean won) December 31, 2022
Financial liabilities Financial liabilities atamortized cost Financial liabilities atfair value throughprofit and loss Derivatives<br><br><br>used for<br><br><br>hedging Others Total
Trade and other payables ^1^ ~~W~~ 5,390,106 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 5,390,106
Borrowings 7,495,561 7,495,561
Other financial liabilities 5,164 32,402 37,566
Lease liabilities 865,280 865,280
^1^ Amounts related to employee benefit plans are included in Trade and other payables.
--- ---

34

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Gains and losses arising from financial instruments by category for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Financial assets at amortized cost
Interest income ~~W~~ 185,116 ~~W~~ 44,248
Impairment loss (80,757 ) (63,593 )
Gain on foreign currency transactions 11,904 16,421
Gain on foreign currency translation 3,780 3,868
Financial assets at fair value through profit or loss
Interest income 7,083 326
Dividend income 7 5
Loss on valuation (17,003 ) (16,353 )
Gain on disposal 1,809 1,555
Gain on foreign currency translation 3,846 15,209
Financial assets at fair value through other comprehensive income
Interest income 18,699 190,021
Dividend income 52,170 8,974
Loss on disposal (11,132 ) (62,630 )
Other comprehensive income (loss) for the year<br>^1^ 158,219 (163,540 )
Gain on valuation
Derivative assets used for hedging
Gain (loss) on transactions 10,192 27,479
Gain on valuation 33,754 150,570
Other comprehensive income for the year<br>^1^ 9,051 80,225
Reclassified to profit or loss from other comprehensive income for the year^1,2^ (28,977 ) (106,149 )
Financial liabilities at amortized cost
Interest expense (246,101 ) (226,977 )
Loss on foreign currency transactions (20,833 ) (35,483 )
Loss on foreign currency translation (47,874 ) (141,768 )
Financial liabilities at fair value through profit or loss
Gain on valuation (1,444 ) 166
Gain on transactions 5,205
Derivative liabilities used for hedging
Loss on valuation 10,888 (20,722 )
Other comprehensive loss for the year<br>^1^ 6,979 (23,966 )
Reclassified to profit or loss from other comprehensive income for the year^1,2^ (8,149 ) 15,137
Lease liabilities
Interest expense (38,946 ) (31,625 )
Total ~~W~~ 17,486 ~~W~~ (338,602 )
^1^ The amounts directly reflected in equity are after adjustments of deferred income tax.
--- ---
^2^ During the years ended December, 31, 2023 and 2022, certain derivatives of the Company were settled and the<br>related gain or loss on valuation of cash flow hedges in other comprehensive income was reclassified to profit or loss for the current year.
--- ---

35

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

5. Cash and Cash Equivalents

Restricted cash and cash equivalents as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022 Description
Bank deposits ~~W~~ 6,395 ~~W~~ 8,440 Deposits restricted for<br>government projects and others

Cash and cash equivalents in the separate statement of financial position are equal to cash and cash equivalents in the separate statement of cash flows.

36

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

6. Trade and Other Receivables

(1) Trade and other receivables as of December 31, 2023 and 2022, are as follows:

December 31, 2023
(in millions of Korean won) Total amounts Provision forimpairment Present valuediscount Carrying<br><br><br>amount
Current assets
Trade receivables ~~W~~ 3,062,159 ~~W~~ (278,716 ) ~~W~~ (8,778 ) ~~W~~ 2,774,665
Other receivables 447,335 (29,616 ) (2,115 ) 415,604
Total ~~W~~ 3,509,494 ~~W~~ (308,332 ) ~~W~~ (10,893 ) ~~W~~ 3,190,269
Non-current assets
Trade receivables ~~W~~ 275,354 ~~W~~ (927 ) ~~W~~ (18,314 ) ~~W~~ 256,113
Other receivables 121,958 (431 ) (6,923 ) 114,604
Total ~~W~~ 397,312 ~~W~~ (1,358 ) ~~W~~ (25,237 ) ~~W~~ 370,717

37

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

December 31, 2022
(in millions of Korean won) Total amounts Provision forimpairment Present valuediscount Carrying<br><br><br>amount
Current assets
Trade receivables ~~W~~ 2,929,574 ~~W~~ (278,135 ) ~~W~~ (6,872 ) ~~W~~ 2,644,567
Other receivables 443,525 (30,549 ) (1,894 ) 411,082
Total ~~W~~ 3,373,099 ~~W~~ (308,684 ) ~~W~~ (8,766 ) ~~W~~ 3,055,649
Non-current assets
Trade receivables ~~W~~ 370,471 ~~W~~ (869 ) ~~W~~ (11,180 ) ~~W~~ 358,422
Other receivables 177,815 (429 ) (8,820 ) 168,566
Total ~~W~~ 548,286 ~~W~~ (1,298 ) ~~W~~ (20,000 ) ~~W~~ 526,988

(2) The fair values of trade and other receivables with original maturities less than one year are equal to their carrying amount because the discounting effect is immaterial. The fair value of trade and other receivables with original maturities longer than one year, which are mainly from sales of goods, is determined by discounting the expected future cash flow at the weighted average interest rate.

38

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(3) Details of changes in provisions for impairment for the years ended December 31, 2023 and 2022, are as follows:

2023 2022
(in millions of Korean won) Trade<br><br><br>receivables Other<br><br><br>receivables Trade<br><br><br>receivables Other<br><br><br>receivables
Beginning ~~W~~ 279,004 ~~W~~ 30,978 ~~W~~ 282,660 ~~W~~ 44,374
Provision 55,121 27,915 49,727 13,866
Write-off/transfer (54,482 ) (28,846 ) (53,383 ) (27,262 )
Ending ~~W~~ 279,643 ~~W~~ 30,047 ~~W~~ 279,004 ~~W~~ 30,978

Provision for impairment on trade and other receivables is recognized as operating expenses, other expenses and finance costs.

39

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(4) Details of other receivables as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Loans ~~W~~ 40,069 ~~W~~ 46,463
Receivables 261,692 262,557
Accrued income 5,275 6,996
Refundable deposits 253,219 294,575
Others 35
Provision for impairment (30,047 ) (30,978 )
Total ~~W~~ 530,208 ~~W~~ 579,648

(5) The maximum exposure of trade and other receivables to credit risks is the carrying amount of each class of receivables mentioned above as of December 31, 2023.

(6) The Company classifies a portion of the trade receivables as financial assets at fair value through other comprehensive income considering the trade receivables business model for managing the asset and the cash flow characteristics of the contract.

40

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

7. Other Financial Assets and Liabilities

(1) Details of other financial assets and liabilities as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Other financial assets
Financial assets measured at amortized cost<br>^1^ ~~W~~ 377,996 ~~W~~ 416,294
Financial assets at fair value through profit or loss ^2^ 441,321 410,388
Financial assets at fair value through other comprehensive income 1,437,684 1,214,059
Derivatives used for hedging 156,774 185,989
Less: Non-current (2,134,324 ) (1,993,893 )
Current ~~W~~ 279,451 ~~W~~ 232,837
Other financial liabilities
Financial liabilities at fair value through profit or loss ~~W~~ 1,403 ~~W~~ 5,164
Derivatives used for hedging 23,076 32,402
Less: Non-current (23,819 ) (37,566 )
Current ~~W~~ 660 ~~W~~
^1^ As of December 31, 2023, the Company’s financial instruments amount to ~~W~~<br>30,464 million (December 31, 2022: ~~W~~ 30,464 million) and consist of checking account deposits, time deposits and others which are subject to withdrawal restrictions.
--- ---
^2^ The Company provided investment in Korea Software Financial Cooperative and others amounting to<br>~~W~~ 1,136 million as collateral in exchange for the payment guarantee provided by the Korea Software Financial Cooperative and others.
--- ---

(2) Financial Assets at fair value through profit or loss

1) Details of financial assets at fair value through profit or loss as of December 31, 2023 and December 31, 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Debt instruments 440,257 387,594
Derivative liabilities held for trading ^1^ 1,064 22,794
Less: Non-current (441,321 ) (410,388 )
Current ~~W~~ ~~W~~
^1^ Derivative assets amounting to ~~W~~ 1,015 million, which is recognized by an agreement with<br>LS Cable & System Ltd. in connection with LS Marine Solution Co., Ltd. (formerly KT Submarine Co., Ltd.,). and a call option amounting to ~~W~~ 49 million in connection with the acquisition of Epsilon Global Communications<br>Pte. Ltd. are included (Note 19).
--- ---

41

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2) The maximum exposure of debt instruments of financial assets at fair value through profit or loss to credit risk is the carrying amount as of December 31, 2023.

(3) Financial Assets at fair value through other comprehensive income

1) Details of financial assets at fair value through other comprehensive income as of December 31, 2023 and December 31, 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Equity instruments (Listed) ~~W~~ 1,236,495 ~~W~~ 1,015,606
Equity instruments (Unlisted) 201,189 198,453
Less: Non-current (1,437,684 ) (1,214,059 )
Current ~~W~~ ~~W~~

2) Upon disposal of these equity instruments, any balance within the other comprehensive income is not reclassified to profit or loss, but to retained earnings. Upon disposal of these debt instruments, the remaining balance of the accumulated other comprehensive income is reclassified to profit or loss.

(4) Derivatives used for hedging

The company trades derivative financial instruments to avoid interest rate risk and currency risk arising from the company’s debt. The company applies cash flow hedge accounting using currency swaps to avoid the risk of cash flow fluctuations caused by interest rate and exchange rate fluctuations on foreign currency bonds.

1) Details of valuation of derivatives used for hedging as of December 31, 2023 and December 31, 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Assets Liabilities Assets Liabilities
Currency swap ^1^ ~~W~~ 156,774 ~~W~~ 23,076 ~~W~~ 185,989 ~~W~~ 32,402
Less: Non-current (105,680 ) (22,416 ) (143,413 ) (32,402 )
Current ~~W~~ 51,094 ~~W~~ 660 ~~W~~ 42,576 ~~W~~
^1^ The currency swap contract is to hedge the risk of volatility in cash flow from the borrowings due to changes<br>in interest rate and foreign exchange rate and the expected maximum period for the Company to be exposed to risks of cash flow volatility by hedged items is until September 7, 2034.
--- ---

The entire fair value of a hedging derivative is classified as a non-current asset or liability if the remaining maturity of the hedged item is more than 12 months and, as a current asset or liability, if the maturity of the hedged item is less than 12 months.

42

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2) Details of valuation gains and losses from derivatives for risk hedging purposes for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won)
2023 2022
Type of transaction Valuationgain Valuationloss Othercomprehensiveloss^1^ Valuationgain Valuationloss Othercomprehensiveincome^1^
Currency swap ~~W~~ 44,804 ~~W~~ 162 ~~W~~ (28,199 ) ~~W~~ 150,570 ~~W~~ 20,722 ~~W~~ 75,112
^1^ The amounts directly reflected in equity are before adjustments of deferred income tax.
--- ---

43

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

3) The ineffective portion recognized in profit or loss concerning cash flow hedges are valuation gains of ~~W~~ 1,267 million for the year ended December 31, 2023 (December 31, 2022: valuation gains of ~~W~~ 3,408 million).

4) The unsettled amount of derivative instruments for the years ended December 31, 2023 and 2022, are as follows:

(i) Hedging instruments

(in millions of Korean won)
Book value of hedginginstruments Changes in fairvalue to calculatethe ineffectiveportion ofhedges
Currency Contractamount Assets Liabilities
1,970,000 ~~W~~ 2,362,670 ~~W~~ 156,774 ~~W~~ 22,416 ~~W~~ 44,618
400,000 4,357 660 (162 )
Total ~~W~~ 2,367,027 ~~W~~ 156,774 ~~W~~ 23,076 ~~W~~ 44,456
(in millions of Korean won)
Book value of hedginginstruments Changes in fairvalue to calculatethe ineffectiveportion ofhedges
Currency Contractamount Assets Liabilities
2,070,000 ~~W~~ 2,474,770 ~~W~~ 159,638 ~~W~~ 31,993 ~~W~~ 169,994
400,000 4,357 409 (308 )
SGD 284,000 245,208 26,351 20,511
Total ~~W~~ 2,724,335 ~~W~~ 185,989 ~~W~~ 32,402 ~~W~~ 190,197

All values are in US Dollars.

(ii) Hedged item

(in millions of Korean won)
2022
Currency Changes in fairvalue to calculatethe ineffectiveportion of hedges Cash flowhedgereserves^1^ Book value ofhedged items Changes in fairvalue to calculatethe ineffectiveportion of hedges Cash flowhedgereserves^1^
2,540,118 ~~W~~ (43,351 ) ~~W~~ (30,910 ) ~~W~~ 2,623,311 ~~W~~ (168,377 ) ~~W~~ (13,287 )
3,651 162 49 3,813 306 116
SGD 267,843 (18,720 ) 3,406
Total 2,543,769 ~~W~~ (43,189 ) ~~W~~ (30,861 ) ~~W~~ 2,894,967 ~~W~~ (186,789 ) ~~W~~ (9,765 )

All values are in Japanese Yen.

1 The amounts directly reflected in equity are after adjustments of deferred income tax.

44

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(5) Financial Liabilities at fair value through profit or loss

1) Details of financial liabilities at fair value through profit or loss as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Financial liabilities at fair value through profit or loss
Derivative liabilities held for trading ^1^ ~~W~~ 1,403 ~~W~~ 5,164
^1^ Derivative liabilities recognized in relation to acquisition of Epsilon Global Communications Pte. Ltd. (Note<br>19).
--- ---
8. Inventories
--- ---

Inventories as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won)
December 31, 2023 December 31, 2022
Acquisitioncost Valuationallowance Carrying<br><br><br>amount Acquisitioncost Valuationallowance Carrying<br><br><br>amount
Merchandise ~~W~~ 448,307 ~~W~~ (80,190 ) ~~W~~ 368,117 ~~W~~ 439,598 ~~W~~ (89,728 ) ~~W~~ 349,870

Cost of inventories recognized as expenses for the year ended December 31, 2023 amounts to ~~W~~ 2,568,849 million (December 31, 2022: ~~W~~ 2,581,671 million), and reversal of inventory valuation loss amounts to ~~W~~ 9,538 million for the year ended December 31, 2022 (December 31, 2022: reversal of loss on valuation inventories of ~~W~~ 23,564 million).

45

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

9. Other Assets and Liabilities

Other assets and liabilities as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Other assets
Advance payments ~~W~~ 60,065 ~~W~~ 54,315
Prepaid expenses 79,051 54,044
Contract costs 1,804,448 1,883,084
Contract assets 774,435 724,500
Less: Non-current (709,276 ) (717,118 )
Current ~~W~~ 2,008,723 ~~W~~ 1,998,825
Other liabilities
Advances received ^1^ ~~W~~ 245,797 ~~W~~ 189,780
Withholdings 39,214 38,561
Unearned revenue 951 1,051
Lease liabilities 851,610 865,280
Contract liabilities 259,724 281,435
Less: Non-current (677,691 ) (710,139 )
Current ~~W~~ 719,605 ~~W~~ 665,968
^1^ The amounts include adjustments arising from adoption of Korean IFRS 1115 Revenue form Contracts withCustomers (Note 25).
--- ---

46

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

10. Property and Equipment
(1) Changes in property and equipment for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Land Buildings andstructures Telecommunicationsequipment Others Construction-in-progress Total
Acquisition cost ~~W~~ 866,853 ~~W~~ 2,645,631 ~~W~~ 38,883,058 ~~W~~ 630,481 ~~W~~ 932,584 ~~W~~ 43,958,607
Less: Accumulated depreciation (including accumulated impairment losses and others) (132 ) (1,607,255 ) (30,258,781 ) (551,779 ) (498 ) (32,418,445 )
Beginning, net ~~W~~ 866,721 ~~W~~ 1,038,376 ~~W~~ 8,624,277 ~~W~~ 78,702 ~~W~~ 932,086 ~~W~~ 11,540,162
Acquisitions and capital expenditures 1,292 19,763 12,309 2,581,114 2,614,478
Disposals and terminations (3,651 ) (4,998 ) (64,153 ) (1,505 ) (302 ) (74,609 )
Depreciation (72,042 ) (2,231,189 ) (31,858 ) (2,335,089 )
Impairment (6,055 ) (1,294 ) (7,349 )
Transfers in (out) 6,405 145,566 2,406,442 12,666 (2,715,765 ) (144,686 )
Others (20,766 ) (80,795 ) 1,432 (2 ) (100,131 )
Ending, net 848,709 1,027,399 8,750,517 70,312 795,839 11,492,776
Acquisition cost 848,841 2,677,013 40,276,446 621,966 796,489 45,220,755
Less: Accumulated depreciation<br><br><br>(including accumulated impairment losses and others) (132 ) (1,649,614 ) (31,525,929 ) (551,654 ) (650 ) (33,727,979 )
(in millions of Korean won) 2022
Land Buildings andstructures Telecommunicationsequipment Others Construction-in-progress Total
Acquisition cost ~~W~~ 888,928 ~~W~~ 3,326,224 ~~W~~ 37,839,901 ~~W~~ 1,106,319 ~~W~~ 997,905 ~~W~~ 44,159,277
Less: Accumulated depreciation (including accumulated impairment losses and others) (132 ) (1,761,393 ) (29,350,392 ) (1,005,623 ) (620 ) (32,138,160 )
Beginning, net ~~W~~ 888,796 ~~W~~ 1,564,831 ~~W~~ 8,494,509 ~~W~~ 80,696 ~~W~~ 997,285 ~~W~~ 12,021,117
Acquisitions and capital expenditures 2,015 16,512 16,760 2,901,085 2,936,372
Disposals and terminations (2,556 ) (4,292 ) (66,672 ) (3,985 ) (81,044 )
Depreciation (80,667 ) (2,178,314 ) (31,493 ) (2,290,474 )
Impairment (2,063 ) (906 ) (2,969 )
Transfers in (out) 24,647 211,503 2,569,792 19,590 (2,936,585 ) (111,053 )
Investment in kind (26,681 ) (488,870 ) (207,516 ) (228 ) (25,254 ) (748,549 )
Others (17,485 ) (166,144 ) 3,029 (2,638 ) (183,238 )
Ending, net ~~W~~ 866,721 ~~W~~ 1,038,376 ~~W~~ 8,624,277 ~~W~~ 78,702 ~~W~~ 932,086 ~~W~~ 11,540,162
Acquisition cost ~~W~~ 866,853 ~~W~~ 2,645,631 ~~W~~ 38,883,058 ~~W~~ 630,481 ~~W~~ 932,584 ~~W~~ 43,958,607
Less: Accumulated depreciation (including accumulated impairment losses and others) (132 ) (1,607,255 ) (30,258,781 ) (551,779 ) (498 ) (32,418,445 )

47

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

The borrowing costs capitalized for qualifying assets amount to ~~W~~ 5,171 million for the year ended December 31, 2023 (December 31, 2022: ~~W~~ 4,697 million). The interest rate applied to calculate the capitalized borrowing costs in 2023 is 2.85%~3.09% (2022: 2.05%~2.71%).

11. Investment Properties
(1) Changes in investment properties for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
2023 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Land Buildings Total Land Buildings Total
Acquisition cost ~~W~~ 209,876 ~~W~~ 1,560,143 ~~W~~ 1,770,019 ~~W~~ 192,392 ~~W~~ 1,356,769 ~~W~~ 1,549,161
Less: Accumulated depreciation (632,530 ) (632,530 ) (551,817 ) (551,817 )
Beginning, net 209,876 927,613 1,137,489 192,392 804,952 997,344
Depreciation (47,460 ) (47,460 ) (43,441 ) (43,441 )
Transfer increase 20,767 80,796 101,563 17,484 166,102 183,586
Ending, net ~~W~~ 230,643 ~~W~~ 960,949 ~~W~~ 1,191,592 ~~W~~ 209,876 ~~W~~ 927,613 ~~W~~ 1,137,489
Acquisition cost ~~W~~ 230,643 ~~W~~ 1,652,995 ~~W~~ 1,883,638 ~~W~~ 209,876 ~~W~~ 1,560,143 ~~W~~ 1,770,019
Less: Accumulated depreciation (692,046 ) (692,046 ) (632,530 ) (632,530 )
(2) The fair value of investment properties is ~~W~~ 4,402,271 million as of<br>December 31, 2023 (December 31, 2022: ~~W~~ 3,182,157 million). The fair value of investment properties is estimated based on the expected cash flow.
--- ---
(3) Rental income from investment properties is ~~W~~ 232,945 million for the year ended<br>December 31, 2023 (December 31, 2022: ~~W~~ 205,386 million) and direct operating expenses (including repairs and maintenance) arising from investment properties that generated rental income during the period are recognized as<br>operating expenses.
--- ---
(4) As of December 31, 2023, the Company (Lessor) has entered into a<br>non-cancellable operating lease contract relating to real estate lease. The future minimum lease fee under this contract is ~~W~~ 105,499 million for one year or less,<br>~~W~~ 258,112 million for more than five years, ~~W~~ 504,125 million over five years, and ~~W~~ 867,736 million in total.
--- ---

48

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(5) Details of investment properties provided as collateral as of December 31, 2023 and 2022, are as follows:<br>
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- ---
Collateral Carryingamount Securedamount Related account Relatedamount
Land and buildings ~~W~~ 165,732 ~~W~~ 34,952 Deposits received ~~W~~ 29,211
(in millions of Korean won) December 31, 2022
Collateral Carryingamount Securedamount Related account Relatedamount
Land and buildings ~~W~~ 168,904 ~~W~~ 35,456 Deposits received ~~W~~ 29,638
12. Intangible Assets
--- ---
(1) Changes in intangible assets for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Goodwill Industrialrights Developmentcosts Software Frequency<br><br><br>usage<br> <br>rights Others^1^ Total
Acquisition cost ~~W~~ 65,057 ~~W~~ 38,732 ~~W~~ 1,774,505 ~~W~~ 719,185 ~~W~~ 2,610,171 ~~W~~ 238,896 ~~W~~ 5,446,546
Less: Accumulated depreciation (including accumulated impairment loss and others) (19,712 ) (1,631,586 ) (672,156 ) (1,121,741 ) (145,672 ) (3,590,867 )
Beginning, net ~~W~~ 65,057 ~~W~~ 19,020 ~~W~~ 142,919 ~~W~~ 47,029 ~~W~~ 1,488,430 ~~W~~ 93,224 ~~W~~ 1,855,679
Acquisition and capital expenditure ^1^ 4,775 75 7 2,335 7,192
Disposals and terminations (377 ) (4,812 ) (367 ) (2,937 ) (8,493 )
Amortization (3,223 ) (55,314 ) (15,346 ) (350,274 ) (87,058 ) (511,215 )
Investment in kind 41,388 9,257 94,040 144,685
Ending, net ~~W~~ 65,057 ~~W~~ 20,195 ~~W~~ 124,256 ~~W~~ 40,580 ~~W~~ 1,138,156 ~~W~~ 99,604 ~~W~~ 1,487,848
Acquisition cost ~~W~~ 65,057 ~~W~~ 40,814 ~~W~~ 1,772,283 ~~W~~ 727,991 ~~W~~ 2,408,711 ~~W~~ 332,335 ~~W~~ 5,347,191
Less: Accumulated depreciation (including accumulated impairment loss and others) (20,619 ) (1,648,027 ) (687,411 ) (1,270,555 ) (232,731 ) (3,859,343 )
^1^ Amounts include ~~W~~ 36,460 million which is the changed effect of useful life from Media<br>Contents Asset.
--- ---

49

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2022
(in millions of Korean won) Goodwill Industrialrights Developmentcosts Software Frequency<br><br><br>usage<br> <br>rights Others Total
Acquisition cost ~~W~~ 65,057 ~~W~~ 34,988 ~~W~~ 1,768,049 ~~W~~ 718,107 ~~W~~ 2,610,171 ~~W~~ 218,111 ~~W~~ 5,414,483
Less: Accumulated depreciation (including accumulated impairment loss and others) (17,994 ) (1,594,563 ) (665,813 ) (771,040 ) (128,509 ) (3,177,919 )
Beginning, net ~~W~~ 65,057 ~~W~~ 16,994 ~~W~~ 173,486 ~~W~~ 52,294 ~~W~~ 1,839,131 ~~W~~ 89,602 ~~W~~ 2,236,564
Acquisition and capital expenditure ^1^ 5,082 55,677 17,440 38,657 116,856
Disposals and terminations (121 ) (5,502 ) (4 ) (17,397 ) (23,024 )
Amortization (2,935 ) (77,351 ) (18,818 ) (350,701 ) (17,247 ) (467,052 )
Investment in kind (3,391 ) (3,883 ) (391 ) (7,665 )
Ending, net ~~W~~ 65,057 ~~W~~ 19,020 ~~W~~ 142,919 ~~W~~ 47,029 ~~W~~ 1,488,130 ~~W~~ 93,224 ~~W~~ 1,855,679
Acquisition cost ~~W~~ 65,057 ~~W~~ 38,732 ~~W~~ 1,774,505 ~~W~~ 719,185 ~~W~~ 2,610,171 ~~W~~ 238,896 ~~W~~ 5,446,546
Less: Accumulated depreciation (including accumulated impairment loss and others) (19,712 ) (1,631,586 ) (672,156 ) (1,121,741 ) (145,672 ) (3,590,867 )
^1^ Amounts include transfer from property and equipment.
--- ---
(2) The carrying amount of membership rights with an indefinite useful life not subject to amortization is<br>~~W~~ 54,717 million as of December 31, 2023 (December 31, 2022: ~~W~~ 55,319 million).
--- ---
(3) The Company annually performs an assessment of goodwill impairment. The recoverable amount of all CGUs has been<br>determined based on value-in-use. These calculations use cash flow projections based on financial budgets approved by management covering a five-year period. Cash flows<br>beyond the five-year period are extrapolated using the estimated growth rates of 0%. The growth rate does not exceed the long-term average growth rate included in industry report specific to the industry in which the CGU operates.<br>
--- ---

The Company determines the gross margin rate based on past performance and its expectations of market changes. The average growth rates used are estimated based on historical growth rate. In addition, the Company estimated pre-tax cash flow based on past performance and its expectation of market growth. The discount rate applied is pre-tax discount rate of 6.68%, reflecting specific risks related to the relevant CGUs.

As a result of impairment tests, the Company concluded that the carrying amount of CGUs does not exceed the recoverable amount of CGUs. Therefore, the Company did not recognize any impairment loss on goodwill for the years ended December 31, 2023 and 2022.

50

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

13. Investments in Subsidiaries, Associates and Joint Ventures
(1) Carrying amounts in investments in subsidiaries, associates and joint ventures as of December 31, 2023 and<br>2022, is as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Subsidiaries ~~W~~ 4,381,161 ~~W~~ 4,492,987
Associates and joint ventures 415,445 386,232
Total ~~W~~ 4,796,606 ~~W~~ 4,879,219
1) Investments in subsidiaries as of December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) Location Percentage ofownership (%) Carrying amount
--- --- --- --- --- --- --- --- --- --- ---
December 31,<br><br><br>2023 December 31,<br><br><br>2022
KT Estate Inc. Korea 100.0 % ~~W~~ 1,084,522 ~~W~~ 1,084,522
KT Sat Co., Ltd. Korea 100.0 % 390,530 390,530
KTCS Corporation ^1^ Korea 8.4 % 6,427 6,427
KTIS Corporation ^1^ Korea 33.3 % 30,633 30,633
KT Skylife Co., Ltd. Korea 50.6 % 311,696 311,696
BC Card Co., Ltd. Korea 69.5 % 633,004 633,004
KT M&S Co., Ltd. Korea 100.0 % 26,764 26,764
KT Alpha Co., Ltd. Korea 70.5 % 130,924 130,924
KT Telecop Co., Ltd. Korea 86.8 % 134,308 134,308
LS Marine Solution Co., Ltd. (formerly KT Submarine Co., Ltd.,) ^3^ Korea 7.3 % 24,370
Nasmedia, Inc.^1^ Korea 44.1 % 23,051 23,051
KTDS Co., Ltd. Korea 91.6 % 19,616 19,616
KTGDH Co., Ltd. Korea 100.0 % 2,745 7,544
KT Strategic Investment Fund No.2 Korea 2,381
KT Sports Korea 52.6 % 27,327 19,311
KT M Mobile Co., Ltd. Korea 100.0 % 102,237 102,237
KT Service Bukbu Co., Ltd. Korea 67.3 % 3,873 3,873
KT Service Nambu Co., Ltd. Korea 76.4 % 10,160 10,160
KT Strategic Investment Fund No.3 Korea 86.7 % 2,947 2,947
KT Strategic Investment Fund No.4 Korea 95.0 % 16,720
PlayD Co., Ltd. ^2^ Korea 23.5 % 20,000 20,000
KT MOS Bukbu Co., Ltd. Korea 100.0 % 6,334 6,334
KT MOS Nambu Co., Ltd. Korea 98.4 % 4,267 4,267
Next Connect PFV Korea 100.0 % 24,250 24,250
KT Strategic Investment Fund No.5 Korea 95.0 % 19,000 19,000
KT Engineering Co., Ltd. Korea 59.8 % 28,000 28,000
KT Studio Genie Co., Ltd.^^ Korea 90.9 % 283,620 283,620
Lolab Co., Ltd. Korea 79.8 % 21,958 21,950
KT ES Pte. Ltd. Singapore 57.6 % 13,640 96,878
Altimedia Corporation Korea 100.0 % 22,000 22,000
kt cloud Co., Ltd. Korea 92.7 % 901,504 901,504
Others 95,824 84,166
Total ~~W~~ 4,381,161 ~~W~~ 4,492,987

51

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

^1^ As of December 31, 2023, although sum of percentage of ownership of the Company and its subsidiaries is<br>less than 50% ownership in these entities, these entities are included in investments in subsidiaries due to the dispersion of other shareholders excluding the Company and voting patterns at previous shareholders’ meetings.<br>
^2^ As of December 31, 2023, this entity is included in investments in subsidiaries as Nasmedia Co., Ltd.<br>holds ownership of 46.9% and the Company and the subsidiary holds ownership of 70.4%.
--- ---
^3^ As of December 31, 2023, this entity is excluded from subsidiaries as substituted associates.<br>
--- ---
^4^ As of December 31, 2023, this entity is excluded from subsidiaries as liquidated.
--- ---
2) Investments in associates and joint ventures as of and for the years ended December 31, 2023 and 2022, are<br>as follows:
--- ---
Carrying amount
--- --- --- --- --- --- --- --- --- ---
(in millions of Korean won) Location Percentage ofownership (%) December 31,<br><br><br>2023 December 31,<br><br><br>2022
KIF Investment Fund Korea 33.3 % ~~W~~ 115,636 ~~W~~ 115,636
HD Hyundai Robotics Co., Ltd. (formerly Hyundai Robotics Co., Ltd.) ^1^ Korea 10.0 % 50,000 50,000
Megazone Cloud Corporation ^1^ Korea 6.7 % 130,001 130,001
KT-DSC Creative Economy Youth Start-up Investment Fund ^1^ Korea 17.1 % 2,220 2,520
LS Marine Solution Co., Ltd. (formerly KT Submarine Co., Ltd.,) ^1^ Korea 7.3 % 5,409
Others 112,179 88,075
Total ~~W~~ 415,445 ~~W~~ 386,232
^1^ The Company has less than 20% interest in the investees, but the investments are classified as investments in<br>associates as the Company has significant influence in determining the operational and financial policies.
--- ---
(2) Changes in investments in subsidiaries, associates and joint ventures for the years ended December 31,<br>2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Beginning ~~W~~ 4,879,219 ~~W~~ 3,816,915
Acquisition 49,031 348,608
Disposal (47,636 ) (34,750 )
Impairment (83,237 ) (3,000 )
Others ^1^ (771 ) 751,446
Ending ~~W~~ 4,796,606 ~~W~~ 4,879,219

52

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

^1^ Others include transactions by the Company to increase investment in kind in kt cloud Co., Ltd. during the<br>period ended December 31, 2022.
(3) The impairment test in subsidiaries, associates and joint ventures for the years ended December 31, 2023<br>and 2022, are as follows:
--- ---
1) The cost method is applied to account for investments in subsidiaries, associates and joint ventures and is<br>reviewed for any indicators that an impairment loss may have occurred at the end of each reporting period. If there are such indicators, the recoverable amount of the asset is estimated using the future cash flow discount method, and if the<br>recoverable amount falls short of the carrying amount, the carrying amount of the asset is reduced and the impairment loss is immediately recognized as loss in the current year.
--- ---
2) During the year ended December 31, 2023, the difference between recoverable amount and carrying amount of<br>~~W~~ 83,237 million in relation to ‘KT ES Pte. Ltd.’, a subsidiary company, is recognized as other expenses.
--- ---

53

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

14. Trade and Other Payables
(1) Details of trade and other payable as of December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- ---
Current liabilities
Trade payables ~~W~~ 713,833 ~~W~~ 568,260
Other payables 3,518,544 3,842,796
Total ~~W~~ 4,232,377 ~~W~~ 4,411,056
Non-current liabilities
Trade payables
Other payables 739,766 979,050
Total ~~W~~ 739,766 ~~W~~ 979,050
(2) Details of other payables as of December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) December 31,2023 December 31,2022
--- --- --- --- --- --- ---
Non-trade payable ~~W~~ 2,880,385 ~~W~~ 3,351,557
Accrued expenses 879,613 935,250
Operating deposits 401,271 436,485
Others 97,041 98,554
Less: Non-current (739,766 ) (979,050 )
Current ~~W~~ 3,518,544 ~~W~~ 3,842,796

54

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

15. Borrowings
(1) Details of borrowings as of December 31, 2023 and 2022, are as follows:
--- ---
1) Debentures
--- ---
(in millions of Korean won and foreign currencies in thousands) December 31, 2023 December 31, 2022
--- --- --- --- --- --- --- --- --- ---
Type Maturity Annual interest<br><br><br>rates Foreigncurrency Foreigncurrency
MTNP notes ^1^ Sep. 7, 2034 6.500% 100,000 128,940 100,000 126,730
MTNP notes Jul. 18, 2026 2.500% 400,000 515,760 400,000 506,920
FR notes Aug. 23, 2023 100,000 126,730
MTNP notes Jul. 19, 2024 0.330% 400,000 3,651 400,000 3,813
MTNP notes Sep. 1, 2025 1.000% 400,000 515,760 400,000 506,920
FR notes ^2^ Nov. 1, 2024 Compounded SOFR +1.210% 350,000 451,290 350,000 443,555
FR notes Jun. 19, 2023 SGD 284,000 267,843
MTNP notes Jan. 21, 2027 1.375% 300,000 386,820 300,000 380,190
MTNP notes Aug. 8, 2025 4.000% 500,000 644,700 500,000 633,650
The 183-3rd Public bond Dec. 22, 2031 4.270% 160,000 160,000
The 184-2nd Public bond Apr. 10, 2023 190,000
The 184-3rd Public bond Apr. 10, 2033 3.170% 100,000 100,000
The 186-3rd Public bond Jun. 26, 2024 3.418% 110,000 110,000
The 186-4th Public bond Jun. 26, 2034 3.695% 100,000 100,000
The 187-3rd Public bond Sep. 2, 2024 3.314% 170,000 170,000
The 187-4th Public bond Sep. 2, 2034 3.546% 100,000 100,000
The 188-2nd Public bond Jan. 29, 2025 2.454% 240,000 240,000
The 188-3rd Public bond Jan. 29, 2035 2.706% 50,000 50,000
The 189-3rd Public bond Jan. 28, 2026 2.203% 100,000 100,000
The 189-4th Public bond Jan. 28, 2036 2.351% 70,000 70,000
The 190-2nd Public bond Jan. 30, 2023 150,000
The 190-3rd Public bond Jan. 30, 2028 2.947% 170,000 170,000
The 190-4th Public bond Jan. 30, 2038 2.931% 70,000 70,000
The 191-2nd Public bond Jan. 15, 2024 2.088% 80,000 80,000
The 191-3rd Public bond Jan. 15, 2029 2.160% 110,000 110,000
The 191-4th Public bond Jan. 14, 2039 2.213% 90,000 90,000
The 192-2nd Public bond Oct. 11, 2024 1.578% 100,000 100,000
The 192-3rd Public bond Oct. 11, 2029 1.622% 50,000 50,000
The 192-4th Public bond Oct. 11, 2039 1.674% 110,000 110,000
The 193-1st Public bond Jun. 16, 2023 150,000
The 193-2nd Public bond Jun. 17, 2025 1.434% 70,000 70,000
The 193-3rd Public bond Jun. 17, 2030 1.608% 20,000 20,000
The 193-4th Public bond Jun. 15, 2040 1.713% 60,000 60,000
The 194-1st Public bond Jan. 26, 2024 1.127% 130,000 130,000
The 194-2nd Public bond Jan. 27, 2026 1.452% 140,000 140,000

All values are in US Dollars.

55

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won and foreign currencies in thousands) December 31, 2023 December 31, 2022
Type Maturity Annual interest<br><br><br>rates Foreigncurrency Koreanwon Foreigncurrency Koreanwon
The 194-3rd Public bond Jan. 27, 2031 1.849% 50,000 50,000
The 194-4th Public bond Jan. 25, 2041 1.976% 80,000 80,000
The 195-1st Public bond Jun. 10, 2024 1.387% 180,000 180,000
The 195-2nd Public bond Jun. 10, 2026 1.806% 80,000 80,000
The 195-3rd Public bond Jun. 10, 2031 2.168% 40,000 40,000
The 196-1st Public bond Jan. 27, 2025 2.596% 270,000 270,000
The 196-2nd Public bond Jan. 27, 2027 2.637% 100,000 100,000
The 196-3rd Public bond Jan. 27, 2032 2.741% 30,000 30,000
The 197-1st Public bond Jun. 27, 2025 4.191% 280,000 280,000
The 197-2nd Public bond Jun. 29, 2027 4.188% 120,000 120,000
The 198-1st Public bond Jan. 10, 2025 3.847% 70,000
The 198-2nd Public bond Jan. 12, 2026 3.869% 150,000
The 198-3rd Public bond Jan. 12, 2028 3.971% 80,000
The 199-1st Public bond Jul. 11, 2025 4.028% 85,000
The 199-2nd Public bond Jul. 10, 2026 4.146% 160,000
The 199-3rd Public bond Jul. 12, 2028 4.221% 155,000
Subtotal 6,976,921 7,116,351
Less: Current portion (1,224,741 ) (884,227 )
Discount on bonds (18,468 ) (22,764 )
Total ~~W~~ 5,733,712 ~~W~~ 6,209,360
^1^ As of December 31, 2023, the Company has outstanding notes in the amount of USD 100 million with fixed interest<br>rates under Medium Term Note Program (“MTNP”) registered in the Singapore Stock Exchange, which allowed issuance of notes of up to USD 2,000 million. However, the MTN program has been terminated since 2007.
--- ---
^2^ The Daily SOFR is approximately 5.380% as of December 31, 2023. Due to the recent suspension of LIBOR<br>calculation, the Company changed the alternative indicator interest rate to Compound SOFR+1.210%.
--- ---

56

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

2) Long-Term Borrowings
(in millions of Korean won)<br><br><br>Financial institution Type Maturity Annualinterestrates December 31,2023 December 31,2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
Export-Import Bank of Korea Inter-Korean Cooperation Fund ^1^ Jul. 10, 2026 1.000 % ~~W~~ 1,480 ~~W~~ 1,974
CA-CIB Long-term loan May. 15, 2023 100,000
May. 28, 2024 3.380 % 100,000 100,000
Mar. 15, 2024 4.150 % 100,000
JPM Long-term commercial papers Feb. 28, 2025 2.700 % 100,000 100,000
Mar. 15, 2024 4.480 % 100,000
DBS Long-term commercial papers Jun. 28, 2024 4.079 % 100,000 100,000
KDB Long-term commercial papers Mar. 14, 2024 4.380 % 100,000
Subtotal 601,480 401,974
Less: Current portion (500,493 ) (100,493 )
Net ~~W~~ 100,987 ~~W~~ 301,481
^1^ The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a 7-year grace period.
--- ---

57

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) Repayment schedule of the Company’s debentures and borrowings including the portion of current liabilities<br>as of December 31, 2023, is as follows:
(in millions of Korean won) Bonds
--- --- --- --- --- --- --- --- --- --- ---
In localcurrency In foreigncurrency Sub-<br><br><br>total Borrowings Total
Jan. 1, 2024~Dec. 31, 2024 ~~W~~ 770,000 ~~W~~ 454,941 ~~W~~ 1,224,941 ~~W~~ 500,493 ~~W~~ 1,725,434
Jan. 1, 2025~Dec. 31, 2025 1,015,000 1,160,460 2,175,460 100,493 2,275,953
Jan. 1, 2026~Dec. 31, 2026 630,000 515,760 1,145,760 494 1,146,254
Jan. 1, 2027~Dec. 31, 2027 220,000 386,820 606,820 606,820
Thereafter 1,695,000 128,940 1,823,940 1,823,940
Total ~~W~~ 4,330,000 ~~W~~ 2,646,921 ~~W~~ 6,976,921 ~~W~~ 601,480 ~~W~~ 7,578,401

58

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

16. Provisions

Changes in provisions for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023
Litigation Restoration<br><br><br>cost Others Total
Beginning balance ~~W~~ 30,938 ~~W~~ 96,667 ~~W~~ 38,489 ~~W~~ 167,094
Increase (transfer) 3 20,702 2,092 22,797
Usage (5,028 ) (983 ) (249 ) (6,260 )
Reversal (34 ) (639 ) (604 ) (1,277 )
Ending balance ~~W~~ 25,879 ~~W~~ 115,747 ~~W~~ 40,728 ~~W~~ 182,354
Current ~~W~~ 25,879 ~~W~~ 25,464 ~~W~~ 40,518 ~~W~~ 91,861
Non-current 90,283 210 90,493
(in millions of Korean won) 2022
Litigation Restoration<br><br><br>cost Others Total
Beginning balance ~~W~~ 77,119 ~~W~~ 99,548 ~~W~~ 56,227 ~~W~~ 232,944
Increase (transfer) 1,630 7,654 1,783 11,067
Usage (5,691 ) (7,689 ) (15,241 ) (28,621 )
Reversal (42,120 ) (2,846 ) (3,330 ) (48,296 )
Ending balance ~~W~~ 30,938 ~~W~~ 96,667 ~~W~~ 39,489 ~~W~~ 167,094
Current ~~W~~ 30,938 ~~W~~ 17,752 ~~W~~ 39,030 ~~W~~ 87,720
Non-current 78,915 459 79,374

59

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

17. Net Defined Benefit Liabilities (Asset)
(1) The amounts recognized in the statements of in the statements of financial position as of December 31,<br>2023 and December 31, 2022, are determined as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Present value of defined benefit obligations ~~W~~ 1,548,588 ~~W~~ 1,493,655
Fair value of plan assets (1,609,178 ) (1,674,344 )
Liabilities (Assets), net ~~W~~ (60,590 ) ~~W~~ (180,689 )
(2) Changes in the defined benefit obligations for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Beginning ~~W~~ 1,493,655 ~~W~~ 1,721,241
Current service cost 109,110 128,218
Interest expense 73,330 41,723
Benefits paid (256,252 ) (208,060 )
Others^1^ (21,078 )
Remeasurements:
Actuarial losses arising from changes in demographic assumptions 19
Actuarial losses arising from changes in financial assumptions 93,422 (228,246 )
Actuarial losses arising from experience adjustments 35,304 59,857
Ending ~~W~~ 1,548,588 ~~W~~ 1,493,655
^1^ Others Include transactions by the Company to increase investment in kind to kt cloud Co., Ltd. during the<br>period ended December 31, 2022.
--- ---
(3) Changes in the fair value of plan assets for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Beginning ~~W~~ 1,674,344 ~~W~~ 1,604,785
Interest income 82,603 38,900
Remeasurements 7,566 (4,949 )
Employer contributions 78,501 243,900
Benefits paid (233,836 ) (192,028 )
Others^1^ (16,264 )
Ending ~~W~~ 1,609,178 ~~W~~ 1,674,344
^1^ Others Include transactions by the Company to increase investment in kind in kt cloud Co., Ltd. during the<br>period ended December 31, 2022.
--- ---

60

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(4) Amounts recognized in the separate statements of profit or loss for the years ended December 31, 2023 and<br>2022, are as follows:
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Current service cost ~~W~~ 109,110 ~~W~~ 128,218
Net interest expense (9,273 ) 2,823
Account transfers (13,548 ) (15,305 )
Total expense ~~W~~ 86,289 ~~W~~ 115,736

Principal actuarial assumptions were as follows:

December 31, 2023 December 31, 2022
Discount rate 4.16 % 5.13 %
Future salary increases 5.98 % 5.76 %

The sensitivity analysis of the defined benefit obligations as of December 31, 2023, to changes in the principal assumptions, is as follows:

(in millions of Korean won) Effect on defined benefit obligation
Changes inassumption Increase inassumption Decrease inassumption
Discount rate 0.50 %p ~~W~~ (41,471) ~~W~~ 43,926
Future salary growth rate 0.50 %p 39,000 (37,202 )

A decrease in corporate bond yields will increase plan liabilities, although this will be partially offset by an increase in the value of the plans’ bond holdings.

The above sensitivity analysis is based on changes in assumption while holding all other assumptions constant. In practice, this is unlikely to occur, and changes in some of the assumptions may be correlated. The sensitivity of the defined benefit obligation to changes in principal actuarial assumptions is calculated using the projected unit credit method, the same method applied when calculating the defined benefit obligations recognized on the statement of financial position.

The Company reviews the funding level on an annual basis and has a policy of eliminating deficit from the fund. Expected contributions to post-employment benefit plans, for the year ending December 31, 2024, are ~~W~~ 116,640 million.

The expected maturity analysis of undiscounted pension benefits as of December 31, 2023, is as follows:

(in millions of Korean won) Less than<br><br><br>1 year Between 1-2years Between 2-5years Over 5 years Total
Pension benefits ~~W~~129,590 ~~W~~254,787 ~~W~~611,344 ~~W~~1,016,818 ~~W~~2,012,539

The weighted average duration of the defined benefit obligations is 5.7 years.

61

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

18. Defined Contribution Plan

For the year ended December 31, 2023, recognized expense related to the defined contribution plan is ~~W~~ 51,316 million (December 31, 2022: ~~W~~ 45,227 million).

19. Commitments and Contingencies
(1) As of December 31, 2023, major commitments with local financial institutions are as follows:<br>
--- ---
(in millions of Korean won and foreign currencies inthousands) Financial institution
--- --- --- --- ---
Bank overdraft Kookmin Bank and others 360,000
Working capital loan DBS Bank and others 1,070,000
Facility loan DBS Bank 100,000 100,000
Inter-Korean Cooperation Fund Export-Import Bank of Korea 37,700 1,480
Economic Cooperation Business Insurance Export-Import Bank of Korea 3,240 1,732
Collateralized loan on electronic<br>accounts receivable-trade Kookmin Bank and others 247,000 7,321
Plus electronic notes payable Industrial Bank of Korea 50,000 2,558
Derivatives transaction limit DBS Bank and others 1,970,000 1,970,000
Citi Bank 400,000 400,000
Total KRW 1,867,940 113,091
1,970,000 1,970,000
400,000 400,000

All values are in US Dollars.

62

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) As of December 31, 2023, guarantees received from financial institutions are as follows:<br>
(in millions of Korean won and foreign currencies inthousands) Warranty details
--- --- --- ---
Hana Bank Comprehensive credit line 3,100<br> <br>8,700
Shinhan Bank Guarantee for payment in foreign currency and others
Kookmin Bank Guarantee for payment in foreign currency 3,186
Woori Bank Guarantee for payment in foreign currency 5,000
Korea Development Bank Refund guarantee for advances received 6,811
Korea Software Financial Cooperative Advance payment/other guarantee and others 1,135,945
Seoul Guarantee Insurance Company Performance guarantee and others 19,698
Total KRW 1,158,743
63,214

All values are in US Dollars.

(3) The Company is jointly and severally obligated with KT Sat Co., Ltd. to pay KT Sat Co., Ltd.’s liabilities<br>incurred prior to its spin-off. As of December 31, 2023, the Company and KT Sat Co., Ltd. are jointly and severally liable for reimbursement of ~~W~~ 595 million.
(4) For the year ended December 31, 2023, the Company entered into agreements with the Securitization<br>Specialty Companies (2023: First 5G 67^th^ to 72^th^ Securitization Specialty Co., Ltd., 2022: First 5G 61^st^ to 66^th^ Securitization Specialty Co., Ltd.) and disposed of its trade receivables related to handset sales. The Company also made asset<br>management agreements with each securitization specialty company and in accordance with the agreement, the Company will receive asset management fees upon liquidation of the securitization specialty company.
--- ---
(5) As of December 31, 2023, the Company is a defendant in 123 lawsuits with the total claimed amount of<br>~~W~~ 134,791 million. As of December 31, 2023, litigation provisions of ~~W~~ 25,879 million for pending lawsuits and unasserted claims are recorded as liabilities for potential loss in the ordinary course<br>of business. The final outcomes of the cases cannot be estimated as of December 31, 2023.
--- ---
(6) According to the financial and other covenants included in certain debentures and borrowings, the Company is<br>required to maintain certain financial ratios such as debt-to-equity ratio, use the funds for the designated purpose and report to the creditors periodically. The<br>covenant also contains restrictions on provision of additional collateral and disposal of certain assets.
--- ---
(7) As of December 31, 2023, the Company participates in Algerie Sidi Abdela new town development consortium<br>(percentage of ownership: 2.5%) and has joint liability with other consortium participants.
--- ---
(8) As of December 31, 2023, the contract amount of property and equipment acquisition agreements made but not<br>yet recognized amounts to ~~W~~ 449,883 million (December 31, 2022: ~~W~~ 653,639 million).
--- ---

63

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(9) The Company entered into an agreement with financial investors of Epsilon Global Communications Pte., Ltd. in<br>the acquisition of shares contract. If certain conditions are not met in the future as disclosed in the terms and conditions of the agreement, the financial investors may exercise the Tag-Along Right,<br>Drag-Along Right, or the right to sell shares for the convertible preferred shares they own(Note 7).
(10) The Company has an obligation for additional contributions as per agreement to Future Innovation Private Equity<br>Fund No.3 and others. As of December 31, 2023, remaining amount of ~~W~~ 4,132 million and USD 30,350 thousand will be invested through the Capital Call method in the future
--- ---
(11) The Company has the amount of ~~W~~ 201,615 million (40%) of joint responsibility<br>obligation and ~~W~~ 302,423 million (60%) of obligation to provide financial support as a construction investor during the construction period with respect to K Defense Co., Ltd. established in accordance with the Private<br>Investment Act on Social Infrastructure. During the operating period, the company has the amount of ~~W~~ 438,312 million (100%) of obligation to provide financial support as an operating investor.
--- ---
(12) During the prior period, the Company entered into a stock sale contract with HYUNDAI MOBIS and HYUNDAI MOTOR<br>COMPANY. If a certain period of time has elapsed from the date of the contract and the acquired stocks are to be disposed to a third party, HYUNDAI MOBIS and HYUNDAI MOTOR COMPANY may exercise a preferential purchase right to designate a buyer with<br>priority.
--- ---
(13) During the prior period, the Company entered into an agreement with LS Cable & System Ltd., which<br>participated in the stock acquisition contract of LS Marine Solution Co., Ltd. (formerly KT Submarine Co., Ltd.,) Under the agreement, the company may exercise a put-option to LS Cable&System Ltd. in the future. (Note 7).
--- ---
(14) During for period, the Company entered into an agreement with equity investors which participated in the stock<br>acquisition contract of kt cloud Co., Ltd., Under the agreement, in specific occasion, equity investors may exercise a Tag-along or put-option to the Company in the<br>future.
--- ---
(15) The Company has the obligation of paying Minimum Guarantee as utilizing product bundling of Tving Co.,Ltd. and<br>the right to be paid certain proportion of the excess as per agreement.
--- ---

64

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

20. Leases

Set out below is information for leases when the Company is a lessee. Information on leases when the Company is a lessor is provided in Note 11.

(1) The separate statements of financial position shows the following amounts relating to leases:

(in millions of Korean won) December 31, 2023 December 31, 2022
Right-of-use<br>assets
Property and buildings ~~W~~ 853,425 ~~W~~ 889,615
Machinery and communication line facilities 50,242 38,112
Others 72,958 55,322
~~W~~ 976,625 ~~W~~ 983,049
Investment properties (building) ~~W~~ ~~W~~
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Lease liabilities ^1^
Current ~~W~~ 226,590 ~~W~~ 223,747
Non-current 625,020 641,533
~~W~~ 851,610 ~~W~~ 865,280
^1^ Included in the line item ‘other current liabilities and<br>non-current liabilities’ in the separate statements of financial position (Note 9).
--- ---

For the years ended December 31, 2023 and 2022, right-of-use assets related to leases increased by ~~W~~ 338,200 million and ~~W~~ 276,784 million, respectively.

65

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) The separate statements of profit or loss shows the following amounts relating to leases:<br>
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Depreciation of<br>right-of-use assets
Property and building ~~W~~ 285,491 ~~W~~ 299,950
Machinery and communication line facilities 25,845 29,842
Others 27,880 24,284
~~W~~ 339,216 ~~W~~ 354,076
Depreciation of investment properties ~~W~~ ~~W~~ 15
Interest expense relating to lease liabilities 38,946 31,625
Expense relating to Short-term leases 4,631 4,203
Expense relating to leases of low-value assets that are<br>not short-term leases 11,527 12,562

The total cash outflow for leases for the years ended December 31, 2023 and 2022 is ~~W~~ 385,080 million and ~~W~~ 405,444 million, respectively.

21. Share Capital

As of December 31, 2023 and 2022, the Company has 1,000,000,000 shares authorized to issue, and the details are as follows:

December 31, 2023 December 31, 2022
Number of<br><br><br>issued<br> <br>shares Par value<br><br><br>per share<br><br><br>(in Korean won) Ordinary shares<br><br><br>(in millions of<br><br><br>Korean won) Number of<br><br><br>issued<br> <br>shares Par value<br><br><br>per share<br><br><br>(in Koreanwon) Ordinary shares<br><br><br>(in millions of<br><br><br>Korean won)
Ordinary shares^1^ 257,860,760 ~~W~~ 5,000 ~~W~~ 1,564,499 261,111,808 ~~W~~ 5,000 ~~W~~ 1,564,499
^1^ The Company retired 55,039,007 treasury shares against retained earnings. Therefore, the ordinary shares amount<br>differs from the amount resulting from multiplying the number of shares issued.
--- ---

66

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

22. Retained Earnings
Details of retained earnings as of December 31, 2023 and 2022, are as follows:
---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Legal reserve ^1^ ~~W~~ 782,249 ~~W~~ 782,249
Voluntary reserves^2^ 4,651,362 4,651,362
Unappropriated retained earnings 7,110,814 6,913,792
Total ~~W~~ 12,544,425 ~~W~~ 12,347,403
^1^ The Commercial Code of the Republic of Korea requires the Company to appropriate, as a legal reserve, an amount<br>equal to a minimum of 10% of cash dividends paid until such reserve equals 50% of its issued share capital. The reserve is not available for the payment of cash dividends but may be transferred to share capital with the approval of the<br>Company’s Board of Directors or used to reduce accumulated deficits, if any, with the ratification of the Company’s majority shareholders.
--- ---
^2^ In accordance with the Restrictions on Special Taxation Act, R&D and HR related reserves under the<br>voluntary reserves are separately accumulated when retained earnings from tax reserve funds are disposed, when income tax is recalculated from tax return adjustments. Reversal of these provisions can be paid out as dividends according to the related<br>tax law.
--- ---

The appropriation of retained earnings for the year ended December 31, 2023 is expected to be appropriated at the shareholders’ meeting on March 28, 2024. The appropriation date for the year ended December 31, 2022 was March 31, 2023.

The appropriation of retained earnings for the years ended December 31, 2023 and 2022, is as follows:

(in millions of Korean won) Note 2023 2022
Unappropriated retained earnings from prior year ~~W~~ 6,367,527 ~~W~~ 6,035,899
Remeasurements of net defined benefit liabilities 17, 29 (90,272 ) 114,154
Gain (loss) on disposal of financial assets at fair value through other comprehensive<br>income 4 222 (11 )
Profit for the year 933,337 763,750
Retirement of treasury stock (100,000 )
Retained earnings available for appropriation 7,110,814 6,913,792
Appropriation of loss on disposal of treasury stock 23 (44,421 )
Dividends 31
(Cash dividend (%): Ordinary shares: (482,970 ) (501,844 )
~~W~~ 1,960 (39.2%) in 2023
~~W~~ 1,960 (39.2%) in 2022
Appropriation of retained earnings (482,970 ) (546,265 )
Retained earnings after appropriation ~~W~~ 6,627,844 ~~W~~ 6,367,527

67

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

23. Accumulated Other Comprehensive Income and Other Components of Equity
(1) As of December 31, 2023 and 2022, the details of the Company’s accumulated other comprehensive<br>income, are as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income ~~W~~ 95,090 ~~W~~ (62,907 )
Gain (loss) on derivatives valuation (30,861 ) (9,765 )
Total ~~W~~ 64,229 ~~W~~ (72,672 )

Changes in accumulated other comprehensive income for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023
Beginning Increase<br><br><br>(Decrease) Reclassification<br><br><br>to gain or loss Ending
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income ~~W~~ (62,907 ) ~~W~~ 157,997 ~~W~~ ~~W~~ 95,090
Gain (loss) on derivatives valuation (9,765 ) 16,030 (37,126 ) (30,861 )
Total ~~W~~ (72,672 ) ~~W~~ 174,027 ~~W~~ (37,126 ) ~~W~~ 64,229
(in millions of Korean won) 2022
Beginning Increase<br><br><br>(Decrease) Reclassification<br><br><br>to gain or loss Ending
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income ~~W~~ 100,622 ~~W~~ (163,529 ) ~~W~~ ~~W~~ (62,907 )
Gain (loss) on derivatives valuation 24,988 56,259 (91,012 ) (9,765 )
Total ~~W~~ 125,610 ~~W~~ (107,270 ) ~~W~~ (91,012 ) ~~W~~ (72,672 )

68

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) As of December 31, 2023 and 2022, the Company’s other components of equity, are as follows:<br>
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- --- --- ---
Treasury stock ^1^ ~~W~~ (398,075 ) ~~W~~ (202,295 )
Loss on disposal of treasury stock ^1^ 301 (44,422 )
Share-based compensation 8,773 6,222
Other (180,871 ) (180,913 )
Total ~~W~~ (569,872 ) ~~W~~ (421,408 )
^1^ The amount of income tax effect directly reflected in equity is ~~W~~ 101 million for the<br>year ended December 31, 2023 (December 31, 2022: ~~W~~ 14,886 million).
--- ---
(3) As of December 31, 2023 and 2022, details of treasury stock, are as follows:
--- ---
December 31, 2023 December 31, 2022
--- --- --- --- ---
Number of shares (in shares) 11,447,338 5,069,130
Amount (in millions of Korean won) ~~W~~ 398,075 ~~W~~ 202,295

Treasury stock is expected to be used for stock compensation for the Company’s directors, employees, and other purposes.

69

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

24. Share-Based Compensation

Details of share-based compensation granted by the Company to executives and employees, including the CEO, by the resolution the Board of Directors as of December 31, 2023 and 2022, are as follows:

2023
(in share) 17th grant
Grant date June 15, 2023, Oct 17, 2023
Grantee CEO, internal directors, external directors, executives
Vesting conditions Service condition: 1 year<br>Non-market performance condition: achievement of performance
Fair value per option (in Korean won) ~~W~~ 30,205
Total compensation costs ~~W~~ 7,262 million
Estimated exercise date During 2024
Valuation method Fair value method
2022
--- ---
(in share) 16th grant
Grant date June 9, 2022
Grantee CEO, internal directors, external directors, executives
Vesting conditions Service condition: 1 year<br>Non-market performance condition: achievement of performance
Fair value per option (in Korean won) ~~W~~ 36,941
Total compensation costs ~~W~~ 9,442 million
Estimated exercise date July 17, 2023
Valuation method Fair value method

70

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Changes in the number of share-based compensation for the years ended December 31, 2023 and 2022, are as follows:

(in shares) 2023
Beginning Granted Expired Exercised^1^ Ending Number ofsharesexercisable
16th grant 258,509 (105,859 ) (131,690 ) 20,960
17th grant 307,182 307,182
Total 258,509 307,182 (105,859 ) (131,690 ) 328,142
(in shares) 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Granted Expired Exercised^1^ Ending Number ofsharesexercisable
15th grant 284,209 (155,286 ) (128,923 )
16th grant 258,509 258,509
Total 284,209 258,509 (155,286 ) (128,923 ) 258,509
^1^ The weighted average price of ordinary shares at the time of exercise, during the year ended December 31,<br>2023, is ~~W~~ 29,550 (2022: ~~W~~ 35,450).
--- ---

71

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

25. Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities
(1) The Company has recognized the following amounts relating to revenue in the separate statement of profit or<br>loss:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Revenue from contracts with customers ~~W~~ 18,138,492 ~~W~~ 18,083,857
Revenue from other sources 232,945 205,386
Total revenue ~~W~~ 18,371,437 ~~W~~ 18,289,243
(2) Operating revenues for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Services provided ~~W~~ 15,932,421 ~~W~~ 15,766,188
Sales of goods 2,439,016 2,523,055
Total ~~W~~ 18,371,437 ~~W~~ 18,289,243

Revenue from services provided are recognized over time and revenue from sales of goods are recognized at a point in time.

(3) The Contract assets, liabilities and deferred revenue recognized in relation to the revenues from contracts<br>with customers, are as follows:
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Contract assets^1^ ~~W~~ 1,069,514 ~~W~~ 885,380
Contract liabilities^1^ 291,997 342,196
Deferred revenue^2^ 70,314 70,369
^1^ Company recognized contract assets of ~~W~~ 295,079 and, contract liabilities of<br>~~W~~ 32,273 million for long-term construction contracts as of December 31, 2023 (2022: contract assets and liabilities of ~~W~~ 160,880 million and ~~W~~ 60,761 million, respectively). The<br>Company recognizes contract asset as trade receivables, and other receivables, and contract liabilities as other current liabilities.
--- ---
^2^ Deferred revenue recognized relating to government grant is excluded.
--- ---
(4) The contract costs recognized as assets are as follows:
--- ---
(in millions of Korean won) December 31, 2023 December 31, 2022
--- --- --- --- ---
Incremental cost of obtaining a contract ~~W~~ 1,647,156 ~~W~~ 1,729,567
Cost of contract performance 157,292 153,517

The Company recognized ~~W~~ 1,881,164 million (2022: ~~W~~ 1,908,543 million) of operating expenses during the year end December 31, 2023, which relates to contract cost assets.

The Company did not recognize an impairment loss in anticipation of full recovery of costs recognized as assets.

72

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(5) For the year ended December 31, 2023 and 2022, revenue recognition arising from carried-forward contract<br>liabilities and deferred revenue from prior year, is as follows:
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Revenue recognized that was included in the contract liabilities balance at the beginning of the<br>year
Allocation of the transaction price ~~W~~ 188,533 ~~W~~ 227,331
Deferred revenue of joining/installment fee 36,708 37,984
Total ~~W~~ 225,241 ~~W~~ 265,315

73

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

26. Operating Expenses
(1) Operating expenses for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Salaries and wages ~~W~~ 2,278,535 ~~W~~ 2,380,672
Depreciation 2,335,992 2,286,741
Depreciation of intangible assets 508,200 464,991
Depreciation of<br>right-of-use assets 339,216 354,076
Commissions 1,892,485 1,815,415
Interconnection charges 436,906 479,644
International interconnection fees 140,434 186,258
Purchase of inventories 2,577,559 2,618,632
Changes of inventories (18,248 ) (60,524 )
Sales promotion expense and sales commission 2,543,731 2,574,457
Service costs 755,918 832,843
Purchase of contents 658,230 653,265
Utilities 387,006 323,821
Taxes and dues 196,384 222,568
Rent 125,292 116,112
Insurance premiums 54,783 57,340
Installation fees 470,900 491,461
Advertising expenses 110,899 148,493
Research and development expenses 226,771 186,212
Bad debt expenses 55,121 49,727
Others 1,109,931 938,936
Total ~~W~~ 17,186,045 ~~W~~ 17,121,140

74

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) Details of employee benefits for the years ended December 31, 2023 and 2022, are as follows:<br>
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Short-term employee benefits ~~W~~ 2,092,954 ~~W~~ 2,187,465
Post-employment benefits (defined benefits) 86,289 115,736
Post-employment benefits (defined contributions) 51,316 45,227
Share-based compensation 10,481 14,192
Others 37,495 18,052
Total ~~W~~ 2,278,535 ~~W~~ 2,380,672

75

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

27. Other Income and Other Expenses
(1) Other income for the years ended December 31, 2023 and 2022, are as follows
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Gain on disposal of property and equipment ~~W~~ 21,860 ~~W~~ 52,175
Gain on disposal of<br>right-of-use assets 3,338 2,935
Gain on disposal of intangible assets 263
Compensation on property and equipment 152,712 159,849
Gain on disposal of investments in subsidiaries, associates and joint ventures 25,920 1,278
Dividends received 64,654 89,895
Gains on government subsidies 40,725 44,473
Others 18,318 57,157
Total ~~W~~ 327,527 ~~W~~ 408,025
(2) Other expenses for the years ended December 31, 2023 and 2022, are as follows:
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Loss on disposal of property and equipment ~~W~~ 66,459 ~~W~~ 72,600
Impairment loss on property and equipment 7,349 2,969
Loss on disposal of<br>right-of-use assets 2,047 1,991
Impairment loss on intangible assets 5,280 6,240
Impairment loss on investments in subsidiaries, associates and joint ventures 83,237 3,000
Donations 21,397 10,576
Others 133,817 131,347
Total ~~W~~ 319,586 ~~W~~ 228,723

76

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

28. Finance Income and Costs
(1) Details of financial income for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Interest income ~~W~~ 210,898 ~~W~~ 234,595
Gain on foreign currency transactions 16,196 54,875
Gain on foreign currency translation 9,318 40,046
Gain on derivative transactions 10,192 50,518
Gain on valuation of derivatives 44,804 150,570
Gain on disposal of trade receivable 3,441
Gain on valuation of financial instruments 24,831 36,197
Others 61,471 10,533
Total ~~W~~ 381,151 ~~W~~ 577,334
(2) Details of financial costs for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Interest expenses ~~W~~ 286,505 ~~W~~ 258,504
Loss on foreign currency transactions 25,124 73,937
Loss on foreign currency translation 49,567 162,737
Loss on derivative transactions 23,039
Loss on valuation of derivatives 162 20,722
Loss on disposal of trade receivables 14,574 62,630
Loss on valuation of financial instruments 43,278 52,385
Others 42
Total ~~W~~ 419,210 ~~W~~ 653,996

77

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

29. Deferred Income Tax and Income Tax Expense

Deferred tax assets and deferred tax liabilities as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Deferred tax assets
Deferred tax assets to be recovered within 12 months ~~W~~ 283,496 ~~W~~ 307,377
Deferred tax assets to be recovered after more than 12 months 954,493 1,042,833
1,237,989 1,350,210
Deferred tax liabilities
Deferred tax liabilities to be recovered within 12 months (523,094 ) (529,259 )
Deferred tax liabilities to be recovered after more than 12 months (1,510,982 ) (1,584,064 )
(2,034,076 ) (2,113,323 )
Deferred tax assets (liabilities), net ~~W~~ (796,087 ) ~~W~~ (763,113 )

The movement in deferred income tax assets and liabilities as of December 31, 2023 and 2022, before taking into consideration the offsetting of balances, is as follows:

(in millions of Korean won) 2023
Beginning Statement ofprofit or loss Othercomprehensiveincome Ending
Deferred tax liabilities
Investment in subsidiaries, associates and joint ventures ~~W~~ (32,900 ) ~~W~~ (2,898 ) ~~W~~ (7) ~~W~~ (35,805 )
Depreciation expense and impairment loss (148,709 ) 39,228 (109,481 )
Plan assets (420,261 ) 15,393 (404,868 )
Deferred tax gain on disposal of fixed assets (529,868 ) 3,859 (526,009 )
Contract assets (654,551 ) 5,642 (648,909 )
Financial assets at fair value through other comprehensive income (31,198 ) 10,195 (45,301 ) (66,304 )
Others (295,836 ) 48,786 4,350 (242,700 )
Total ~~W~~ (2,113,323 ) ~~W~~ 120,205 ~~W~~ (40,958 ) ~~W~~ (2,034,076 )

78

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) 2023
Beginning Statement ofprofit or loss Othercomprehensiveincome Ending
Deferred tax assets
Investments in subsidiaries, associates and joint ventures 3,533 3,732 51 7,316
Depreciation expense and impairment loss 88,231 (62,210 ) 26,021
Contract liabilities 121,393 (9,513 ) 111,880
Defined benefit liabilities 374,907 (16,191 ) 30,907 389,623
Provisions 279,811 (18,881 ) 260,930
Financial assets at fair value through other comprehensive income 19,548 (11,801 ) (7,747 )
Trade receivables 1,575 (37 ) 1,538
Others 358,760 (49,948 ) 2,752 311,564
Total ~~W~~ 1,247,758 ~~W~~ (164,849 ) ~~W~~ 25,963 ~~W~~ 1,108,872
Temporary difference, net (865,565 ) (44,644 ) (14,995 ) (925,204 )
Tax credit carryforwards 102,452 26,665 129,117
Total net balance ~~W~~ (763,113) ~~W~~ (17,979) ~~W~~ (14,995) ~~W~~ (796,087)
(in millions of Korean won) 2022
--- --- --- --- --- --- --- --- --- --- --- ---
Beginning Statement ofprofit or loss Othercomprehensiveincome Ending
Deferred tax liabilities
Investment in subsidiaries, associates and joint ventures ~~W~~ (31,304 ) ~~W~~ (1,596 ) ~~W~~ ~~W~~ (32,900 )
Depreciation expense and impairment loss (83,769 ) (64,940 ) (148,709 )
Plan assets (418,207 ) (2,054 ) (420,261 )
Deferred tax gain on disposal of fixed assets (346,934 ) (182,934 ) (529,868 )
Contract assets (664,255 ) 9,704 (654,551 )
Financial assets at fair value through other comprehensive income (64,742 ) (3,453 ) 36,997 (31,198 )
Others (272,863 ) (25,458 ) 2,485 (295,836 )
Total ~~W~~ (1,882,074 ) ~~W~~ (270,731 ) ~~W~~ 39,482 ~~W~~ (2,113,323 )

79

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) 2022
Beginning Statement ofprofit or loss Othercomprehensiveincome Ending
Deferred tax assets
Investments in subsidiaries, associates and joint ventures 5,038 (1,505 ) 3,533
Depreciation expense and impairment loss 69,327 18,904 88,231
Contract liabilities 148,693 (27,300 ) 121,393
Defined benefit liabilities 448,555 (24,362 ) (49,286 ) 374,907
Provisions 276,508 3,304 279,812
Financial assets at fair value through other comprehensive income 19,548 19,548
Trade receivables 1,635 (60 ) 1,575
Others 311,212 37,953 9,594 358,759
Total ~~W~~ 1,260,968 ~~W~~ 6,934 ~~W~~ (20,144 ) ~~W~~ 1,247,758
Temporary difference, net (621,106 ) (263,797 ) 19,338 (865,565 )
Tax credit carryforwards 133,999 (31,547 ) 102,452
Total net balance ~~W~~ (487,107 ) ~~W~~ (295,344 ) ~~W~~ 19,338 ~~W~~ (763,113 )

Total unrecognized temporary differences as deferred tax liabilities as of December 31, 2023 is ~~W~~ 536,902 million (2022: ~~W~~ 559,164 million), relating to investment in subsidiaries, associates and joint ventures, and the total of unrecognized temporary differences as deferred tax assets as of December 31, 2023 is ~~W~~ 3,382,443 million (2022: ~~W~~ 3,328,478 million), relating to investment in subsidiaries, associates and joint ventures.

The tax impact recognized directly to equity as of December 31, 2023 and 2022, is as follows:

(in millions of Korean won) 2023 2022
Beforerecognition Tax effect Afterrecognition Beforerecognition Tax effect Afterrecognition
Gain (loss) on valuation of financial assets at fair value through other comprehensive<br>income ~~W~~ 211,046 ~~W~~ (53,049 ) ~~W~~ 157,997 ~~W~~ (220,074 ) ~~W~~ 56,545 ~~W~~ (163,529 )
Hedge instruments valuation gain (loss) (28,199 ) 7,103 (21,096 ) (46,832 ) 12,079 (34,753 )
Remeasurements of net defined benefit liabilities (121,180 ) 30,907 (90,273 ) 163,440 (49,286 ) 114,154
Loss on disposal of treasury stock 402 (101 ) 301 (59,308 ) 14,886 (44,422 )
Total ~~W~~ 62,069 ~~W~~ (15,140 ) ~~W~~ 46,929 ~~W~~ (162,774 ) ~~W~~ 34,224 ~~W~~ (128,550 )

80

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Details of income tax expenses for the years ended December 31, 2023 and 2022, are calculated as follows:

(in millions of Korean won) 2023 2022
Current income tax expenses ~~W~~ 203,958 ~~W~~ 211,649
Impact of change in temporary differences 17,979 295,344
Total income tax expense ~~W~~ 221,937 ~~W~~ 506,993

The relationship between the Company profit before tax and income tax expense for the years ended December 31, 2023 and 2022, is as follows:

(in millions of Korean won) 2023 2022
Profit before income tax ~~W~~ 1,155,275 ~~W~~ 1,270,743
Expected tax expense at statutory tax rate ~~W~~ 294,630 ~~W~~ 339,092
Tax effects of
Income not taxable for tax purposes (11,952 ) (3,515 )
Expenses not deductible for tax purposes 8,157 20,089
Tax credit and deferred tax effects due to consolidated tax return (64,177 ) (49,393 )
Temporary difference not recognized as deferred tax 17,803 245,871
Deferred tax due to tax rate changes (39,602 )
Others (22,524 ) (5,549 )
Income tax expense ~~W~~ 221,937 ~~W~~ 506,993

81

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

30. Earnings per Share
(1) Basic Earnings per Share
--- ---

Basic earnings per share is calculated by dividing the profit for the period by the weighted average number of ordinary shares outstanding during the year, excluding ordinary shares purchased by the Company and held as treasury stock.

Basic earnings per share for the years ended December 31, 2023 and 2022, is calculated as follows:

(in millions of Korean won) 2023 2022
Profit attributable to ordinary shares ~~W~~ 933,337 ~~W~~ 763,750
Weighted average number of ordinary shares outstanding in shares 249,470,072 242,235,332
Basic earnings per share (in Korean won) 3,741 3,153
(2) Diluted Earnings per Share
--- ---

Diluted earnings per share from operations is calculated by adjusting the weighted average number of ordinary shares outstanding to assume conversion of all dilutive potential ordinary shares. The Company has dilutive potential ordinary shares from other share-based compensation.

Diluted earnings per share for the years ended December 31, 2023 and 2022, is calculated as follows:

(in millions of Korean won) 2023 2022
Profit attributable to ordinary shares (in millions of Korean won) ~~W~~ 933,337 ~~W~~ 763,750
Adjusted profit for the year attributable to ordinary shares (in millions of Koreanwon) 933,337 763,750
Number of dilutive potential ordinary shares outstanding 119,263 91,931
Weighted-average number of ordinary shares outstanding and dilutive ordinary shares 249,589,335 242,327,263
Diluted earnings per share (in Korean won) 3,739 3,152

Diluted earnings per share is earnings per outstanding of ordinary shares and dilutive potential ordinary shares. Diluted earnings per share is calculated by dividing adjusted profit for the year by the sum of the number of ordinary shares and dilutive potential ordinary shares.

82

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

31. Dividends

The dividends paid by the Company in 2023 were ~~W~~ 501,844 million (~~W~~ 1,960 per share). The dividends paid by the Company in 2022 were ~~W~~ 450,394 million (~~W~~ 1,910 per share). A dividend in respect of the year ended December 31, 2023, of ~~W~~ 1,960 per share, amounting to a total dividend of ~~W~~ 482,970 million, is to be proposed at the shareholders’ meeting on March 28, 2024.

83

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

32. Cash Generated from Operations
(1) Cash flows from operating activities for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
1. Profit for the year ~~W~~ 933,337 ~~W~~ 763,750
2. Adjustments for:
Income tax expense 221,937 506,993
Interest income (210,898 ) (234,595 )
Interest expense 285,048 258,504
Dividends income (116,832 ) (98,874 )
Depreciation 2,382,549 2,333,915
Amortization of intangible assets 511,215 467,052
Depreciation of<br>right-of-use assets 339,216 354,076
Provisions for post-employment 99,837 131,041
Allowance for bad debts 83,036 63,593
Loss (gain) on disposal of subsidiaries, associates and joint ventures (25,920 ) (1,278 )
Impairment loss on interests in subsidiaries, associates and joint ventures 83,237 3,000
Loss on disposal of property and equipment 44,599 20,425
Loss on disposal of intangible assets 5,280 5,977
Gain on disposal of<br>right-of-use assets (1,291 ) (944 )
Loss on foreign currency translation 40,249 122,691
Gain on valuation of derivatives, net (36,865 ) (177,600 )
Loss (gain) on valuation of financial assets at fair value <br>through profit or loss (4,727 ) 37,256
Gain on disposal of financial assets at fair value <br>through profit or loss (1,809 ) (1,555 )
Others 5,600 (122,170 )
3. Changes in operating assets and liabilities
Decrease in trade receivables (63,926 ) 118,814
Decrease in other receivables 10,779 67,940
Increase in other current assets (9,897 ) (26,665 )
Decrease (increase) in other non-current assets 7,842 (13,886 )
Increase in inventories (12,924 ) (39,879 )
Increase (decrease) in trade payables 146,065 (313,744 )
Increase in other payables 28,147 314,512
Increase (decrease) in other current liabilities 50,794 (69,292 )
Decrease in other non-current liabilities (15,935 ) (17,018 )
Decrease in provisions (3,292 ) (26,519 )
Decrease in deferred revenue (17,251 ) (34,083 )
Payment of post-employment benefits (229,675 ) (238,219 )
Decrease (increase) in plan assets 130,280 (25,033 )
4. Cash generated from operations (1+2+3) ~~W~~ 4,657,805 ~~W~~ 4,128,185

84

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) Significant transactions not affecting cash flows for the years ended December 31, 2023 and 2022, are as<br>follows:
(in millions of Korean won) 2023 2022
--- --- --- --- --- --- ---
Reclassification of current portion of borrowings ~~W~~ 1,717,151 ~~W~~ 957,218
Reclassification of<br>construction-in-progress to property and equipment 2,715,765 2,936,585
Reclassification of accounts payable from property and equipment (313,921 ) (46,638 )
Reclassification of accounts payable from intangible assets (304,125 ) (304,125 )
Reclassification of payable from net defined benefit liabilities 1,522 (3,320 )
Disposal of treasury stock related to the acquisition of financial instrument 747,161
Increase of in subsidiary shares due to investment in kind 751,504

85

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

33. Cash Generated from Financing Activities

Details of changes in liabilities related to cash flows that have been classified as financing activities, or will be classified as financing activities in the separate statement of cash flows for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023
Beginning Financingactivitiescash flows Others
Newlyacquired Exchangedifference Fair valuechange Otherchanges Ending
Borrowing ~~W~~ 7,495,561 ~~W~~ 1,097 ~~W~~ ~~W~~ 44,938 ~~W~~ ~~W~~ 18,337 ~~W~~ 7,559,933
Lease liabilities 865,280 (333,042 ) 352,687 (33,315 ) 851,610
Derivative liabilities 32,402 10,888 9,326 (29,540 ) 23,076
Derivative assets (185,989 ) 46,525 32,487 5,850 (55,647 ) (156,774 )
Total ~~W~~ 8,207,254 ~~W~~ (285,420 ) ~~W~~ 352,687 ~~W~~ 88,313 ~~W~~ 15,176 ~~W~~ (100,165 ) ~~W~~ 8,277,845
(in millions of Korean won) 2022
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Beginning Financingactivitiescash flows Others
Newlyacquired Exchangedifference Fair valuechange Otherchanges Ending
Borrowing ~~W~~ 6,949,654 ~~W~~ 382,845 ~~W~~ ~~W~~ 136,787 ~~W~~ ~~W~~ 26,275 ~~W~~ 7,495,561
Lease liabilities 966,700 (357,337 ) 295,207 (39,290 ) 865,280
Derivative liabilities 18,050 (41,197 ) 19,858 11,788 23,903 32,402
Derivative assets (97,021 ) 76,280 (147,161 ) 31,636 (49,723 ) (185,989 )
Total ~~W~~ 7,837,383 ~~W~~ 60,591 ~~W~~ 295,207 ~~W~~ 9,484 ~~W~~ 43,424 ~~W~~ (38,835 ) ~~W~~ 8,207,254

86

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

34. Related Party Transactions
(1) The list of related parties of the Company as of December 31, 2023, is as follows:
--- ---
Relationship Name of Entity
--- ---
Subsidiaries 84 entities including KT Estate Inc., KT Skylife Co., Ltd., BC Card Co., Ltd.
Associates and joint ventures 54 entities including K Bank Inc., KIF Investment Fund, Megazone Cloud Corporation
Others^1^ Goody Studio Co., Ltd., Rebellion Inc., Digital Pharm Co., Ltd., Mastern No.127 Logispoint Daegu Co., Ltd., KORAMKO No. 143 General Private Real Estate Investment Company
^1^ Despite the significant influence, treated as investment changes in FV under IFRS 9 instead of using equity<br>method.
--- ---
(2) The amount of the installment handset sales receivable inherited from KTIS Corporation, KTCS Corporation, KT<br>Commerce Inc., KT Telecop Co., Ltd., KT M&S Co., Ltd. and KT Service Nambu Co., Ltd. for the year ended December 31, 2023 is ~~W~~ 526,955 million.
--- ---
(3) The Company has entered into an additional agreement in relation to providing communication service in<br>wholesale with KT M Mobile Co., Ltd. in connection with the agreement, the Company offsets all or partial receivables against payables for joining mobile telecommunication services and usage of network arising from telecommunication operations.<br>
--- ---

87

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(4) Outstanding balances of receivables and payables in relation to transaction with related parties as of<br>December 31, 2023 and 2022, are as follows:
(in millions of Korean won) December 31, 2023
--- --- --- --- --- --- --- --- --- --- --- --- ---
Receivables Payables
Tradereceivables Loans andothers Otherreceivables Tradepayables Otherpayables Lease<br><br><br>liabilities
Subsidiaries
KT Linkus Co., Ltd. 13 3 13,404
KT Telecop Co., Ltd. 426 644 2,534 26,002
KTCS Corporation 140 8,316 52,542 5
KTIS Corporation 11,258 25 47,246
KT Service Bukbu Co., Ltd. 19 4 24,375
KT Service Nambu Co., Ltd. 9 24,653
KT Skylife Co., Ltd. 37,070 11,062 8,457
KTDS Co., Ltd. 1,633 3,361 1,107 132,711
KT Estate Inc. 1,202 42,614 22,861 1,677
Skylife TV Co., Ltd. 54 2,289
BC Card Co., Ltd. ^1^ 699 6,443 1,123 3
KT Sat Co., Ltd. 1,272 1 1,908
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) 4,684 79 9,226
KT Commerce Inc. 167 2 8,124 19,296
KT M&S Co., Ltd. 240 8,400 243 95,671
GENIE Music Corporation 13,714 434 17,741
KT M Mobile Co., Ltd. 47,214 48 5,812
Nasmedia, Inc. 1,992 3 686
KT MOS Bukbu Co., Ltd.^^ 10 8 15,605
KT MOS Nambu Co., Ltd. 119 12,899
KT Engineering Co., Ltd 18 809 2,370 82,831
KT Studio Genie Co., Ltd. 9 1,339 30,737
kt cloud Co., Ltd. 11,403 10 61,919 330
East Telecom LLC 5,045 12,704 69
Others 5,571 136 1,906 11,848 23
Associates and joint ventures
K Bank Inc. 203 101,267 1
Others 256 3 521 1,331
Total ~~W~~ 144,312 ~~W~~ 21,104 ~~W~~ 176,982 ~~W~~ 16,110 ~~W~~ 722,364 ~~W~~ 3,369

88

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Receivables Payables
Tradereceivables Loans andothers Otherreceivables Tradepayables Otherpayables Lease<br><br><br>liabilities
Subsidiaries
KT Linkus Co., Ltd. ~~W~~ 13 ~~W~~ ~~W~~ ~~W~~ ~~W~~ 11,241 ~~W~~
KT Telecop Co., Ltd. 673 382 2,043 25,528
KTCS Corporation 173 11,221 60,045 7
KTIS Corporation 7,634 255 46,722
KT Service Bukbu Co., Ltd. 114 6 23,105
KT Service Nambu Co., Ltd. 1 25,998
KT Skylife Co., Ltd. 7,091 27,642 11,411
KTDS Co., Ltd. 1,245 1,421 107,863
KT Estate Inc. 3,011 42,267 50,563 3,062
Skylife TV Co., Ltd. 23 2,528
BC Card Co., Ltd. ^1^ 323 4,201 1,077 4
KT Sat Co., Ltd. 1,552 1,724
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) 5,869 77 9,812
KT Commerce Inc. 163 8,017 21,996
KT M&S Co., Ltd. 340 8,400 111,718
GENIE Music Corporation 17,308 1,106 28,658
KT M Mobile Co., Ltd. 30,663 131 6,160
Nasmedia, Inc. 3,079 3 1,522
KT MOS Bukbu Co., Ltd.^^ 13 829 14,086
KT MOS Nambu Co., Ltd. 264 14,098
KT Engineering Co., Ltd 547 620 753 85,174 2
KT Studio Genie Co., Ltd. 8 1,442 52,912
kt cloud Co., Ltd. 15,844 2 31,816 290
East Telecom LLC 5,048 11,974 525
Others 9,253 156 121 26,266 29
Associates and joint ventures
K Bank Inc. 204 100,253
Others 124 2 685 1,666
Total ~~W~~ 110,315 ~~W~~ 20,374 ~~W~~ 192,281 ~~W~~ 10,934 ~~W~~ 773,233 ~~W~~ 5,060
^1^ As of December 31, 2023, the unsettled amount of ~~W~~ 1,002 million (2022:<br>~~W~~ 1,062 million) in credit card transaction with BC Card Co., Ltd. is included in trade payables.
--- ---

89

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(5) Significant transactions with related parties for the years ended December 31, 2023 and 2022, are as<br>follows:
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
Sales Purchases Acquisition ofright-of-useassets Finance<br><br><br>income Finance<br><br><br>costs Dividendsreceived
Operatingrevenue Other<br><br><br>income Operatingexpenses Others ^1^
Subsidiaries
KT Linkus Co., Ltd. ~~W~~ 6,136 ~~W~~ 3 ~~W~~ 61,329 ~~W~~ ~~W~~ 1 ~~W~~ ~~W~~ ~~W~~
KT Telecop Co., Ltd.^1^ 6,705 41 142,170 20 15 10
KTCS Corporation 81,571 12 340,547 2 381
KTIS Corporation ^1^ 73,885 42 332,931 381 1,224
KT Service Bukbu Co., Ltd. 13,249 3 229,500
KT Service Nambu Co., Ltd.^1^ 14,000 9 264,362 374
KT Skylife Co., Ltd.^^ 129,070 17 22,420 8,368
KTDS Co., Ltd. ^1^ 12,626 172 482,505 1,006 2 7,560
KT Estate Inc.^1^ 56,459 25 84,057 4,865 24,492 617 17,500
Skylife TV Co., Ltd. 14,756 11,314
BC Card Co., Ltd. 9,157 14 33,458 5 11,320
KT Sat Co., Ltd. 7,924 1 11,009 7,000
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) 62,069 3 45,253 1
KT Commerce Inc. ^1^ 1,244 1 103,495 98,176
KT M&S Co., Ltd. 340,290 43 259,051
GENIE Music Corporation 360 1 53,657
KT M Mobile Co., Ltd. 224,136 48 5,679
Nasmedia, Co., Ltd. 422 3,969 1 3,170
KT MOS Nambu Co., Ltd.^^ 1,863 8 100,176
KT MOS Bukbu Co., Ltd.^^ 2,840 8 100,747
KT Engineering Co., Ltd. ^1^ 3,635 2 39,144 154,098
KHS Corporation 4 7,296
KT Studio Genie Co., Ltd.^1^ 113 13,708 99,732
kt cloud Co., Ltd.^1^ 92,451 5 161,475 10,021 751 15
Others ^2,3,4^ 27,461 14 87,857 9 1 1 6,992
Associates and joint ventures
K Bank Inc. 2,611 159 3,211
Others ^5^ 1,664 100 5,330 7 84 1,139
Others
Digital Pharm Co., Ltd. 1
Total ~~W~~ 1,186,702 ~~W~~ 572 ~~W~~ 3,002,598 ~~W~~ 368,675 ~~W~~ 25,275 ~~W~~ 3,231 ~~W~~ 717 ~~W~~ 64,654
^1^ Amounts include acquisition of property and equipment and others.
--- ---
^2^ Transaction amount before being excluded from subsidiaries (KT Strategic Investment Fund No.2).<br>
--- ---
^3^ Transaction amount before being included in associates (LS Marine Solution Co., Ltd.).
--- ---
^4^ Transaction amount before being excluded from subsidiaries (KT-Michigan<br>Global Contents Fund).
--- ---
^5^ Transaction amount before being included in subsidiaries (KD Living, Inc.)
--- ---

90

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) 2022
Sales Purchases Acquisition ofright-of-useassets Finance<br><br><br>income Finance<br><br><br>costs Dividendsreceived
Operatingrevenue Other<br><br><br>income Operatingexpenses Others ^1^
Subsidiaries
KT Linkus Co., Ltd. ~~W~~ 6,962 ~~W~~ 3 ~~W~~ 57,043 ~~W~~ ~~W~~ ~~W~~ ~~W~~ ~~W~~
KT Telecop Co., Ltd. 8,543 164,091 13
KTCS Corporation 88,579 69 331,560 8 1 318
KTIS Corporation 71,136 345 319,531 1,020
KT Service Bukbu Co., Ltd. 13,611 2 238,377
KT Service Nambu Co., Ltd. 12,582 2 280,857
KT Skylife Co., Ltd.^^ 104,188 38,664 4 8,368
KTDS Co., Ltd. ^1^ 14,753 1 442,263 108 3 4,920
KT Estate Inc. 34,246 152,000 44 481
Skylife TV Co., Ltd. 416 12,030
BC Card Co., Ltd. 11,742 4 31,515 5 17,439
KT Sat Co., Ltd. 12,042 10,106
KT Alpha Co., Ltd. (KT Hitel Co., Ltd.) 64,318 5 83,262 2
KT Commerce Inc. ^1^ 1,710 128,254 92,128
KT M&S Co., Ltd. ^1^ 339,590 23 251,867 79
GENIE Music Corporation 6,545 54,925
KT M Mobile Co., Ltd. 192,654 25,825
Nasmedia, Co., Ltd. 647 5,306 1 3,293
KT MOS Nambu Co., Ltd.^1^ 1,742 82,108 98
KT MOS Bukbu Co., Ltd.^^ 2,540 82,560
KT Engineering Co., Ltd. ^1^ 2,094 40,160 173,025
KHS Corporation 13 13,834
KT Studio Genie Co., Ltd. 78 49,263
kt cloud Co., Ltd. 77,641 150 86,884 775 937 14
kt seezn Co., Ltd.^2^ 36,185 78,952
Others 22,065 103,440 97 2 1 243
Associates and joint ventures
K-REALTY CR REITs No.1 ^3^ 45,549
K Bank Inc. 10,287 167 599
Others ^1^ 816 100 6,868 3,170 1,966 48 8,741
Others
Digital Pharm Co., Ltd. 1
Total ~~W~~ 1,137,726 ~~W~~ 704 ~~W~~ 3,122,449 ~~W~~ 317,976 ~~W~~ 2,785 ~~W~~ 1,566 ~~W~~ 545 ~~W~~ 89,891
^1^ Amounts include acquisition of property and equipment and others.
--- ---
^2^ Transaction amount before being excluded from subsidiaries.
--- ---
^3^ Transaction amount before being excluded from associates.
--- ---

91

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(6) Key management compensation for the years ended December 31, 2023 and 2022, consists of:<br>
(in millions of Korean won) 2023 2022
--- --- --- --- ---
Salaries and other short-term benefits ~~W~~ 1,494 ~~W~~ 1,855
Post-employment benefits 153 294
Stock-based compensation 569 976
Total ~~W~~ 2,216 ~~W~~ 3,125
(7) Fund transactions with related parties for the years ended December 31, 2023 and 2022, are as follows:<br>
--- ---
(in millions of Korean won) 2023
--- --- --- --- --- --- --- --- --- --- --- ---
Loan transactions Borrowing transactions^1^ Equitycontributionsin cash andothers
Loans Collections Borrowings Repayments
Subsidiaries
KT M&S Co., Ltd. 62,300 62,300
KT Estate Inc. 29 25,218
KT HEALTHCARE VINA COMPANY LIMITED. 13,001
K-Realty Qualified Private Real Estate Investment Trust<br>No. 4 (16,720 )
Others^2^ 730 757 (2,008 )
Associates
K-Realty 11th Real Estate Investment Trust<br>Company 423
Kiamco Data Center Blind Fund 7,500
Telco Credit Bureau Co., Ltd. Investment Fund 6,500
Others 11,305
Others
Rebellions Co., Ltd. 19,998
Total ~~W~~ 63,030 ~~W~~ 62,300 ~~W~~ 29 ~~W~~ 26,398 ~~W~~ 39,576
^1^ Lease transactions are included in borrowing transactions
--- ---
^2^ Transaction amount before being excluded from subsidiaries (KT Strategic Investment Fund No. 2).<br>
--- ---

92

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) 2022
Loan transactions Borrowing transactions^1^ Equitycontributionsin cash andothers
Loans Collections Borrowings Repayments
Subsidiaries
KT Strategic Investment Fund 6 ~~W~~ ~~W~~ ~~W~~ ~~W~~ ~~W~~ 9,200
KT M&S Co., Ltd. 62,300 60,988
KT Estate Inc. 44 37,452
kt cloud Co., Ltd. 95,900 95,900 775 500 901,504
Others 995 33 5,837
Associates
K-Realty 11th Real Estate Investment Trust<br>Company 1,916 176
Megazone Cloud Corporation 130,001
IBK-KT Emerging Digital Industry Investment Fund 9,000
Others 39,753
Total ~~W~~ 159,195 ~~W~~ 156,888 ~~W~~ 2,735 ~~W~~ 38,161 ~~W~~ 1,095,295
^1^ Lease transactions are included in borrowing transactions.
--- ---
(8) As of December 31, 2023, the Company entered into a credit card agreement with a limit of<br>~~W~~ 10,923 million (2022: ~~W~~ 8,995 million) with BC Card Co., Ltd.
--- ---
(9) The Company has an obligation to invest in Kiamco Data Center Blind Fund, a related party, and others according<br>to the agreement. As of December 31, 2023 the Company is planning make an additional investment of ~~W~~ 59,135 million.
--- ---

93

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

35. Financial Risk Management
(1) Financial Risk Factors
--- ---

The Company’s activities expose it to a variety of financial risks: market risk, credit risk and liquidity risk. The Company’s overall risk management program focuses on the unpredictability of financial markets and seeks to minimize potential adverse effects on the Company’s financial performance. The Company uses derivatives to hedge certain financial risk exposures such as cash flow risk.

The Company’s financial policy is set up in the long-term perspective and annually reported to the Board of Directors. The financial risk management is carried out by the Value Management Office, which identifies, evaluates and hedges financial risks. The treasury department in the Value Management Office considers various market conditions to estimate the effect from the market changes.

1) Market risk

The Company’s market risk management focuses on controlling the extent of exposure to the risk in order to minimize revenue volatility. Market risk is a risk that decreases value or profit of the Company’s portfolio due to changes in market interest rate, foreign exchange rate and other factors.

(i) Sensitivity analysis

Sensitivity analysis is performed for each type of market risk to which the Company is exposed. Reasonably possible changes in the relevant risk variable such as prevailing market interest rates, currency rates, equity prices or commodity prices are estimated and if the rate of change in the underlying risk variable is stable, the Company does not alter the chosen reasonably possible change in the risk variable. The reasonably possible change does not include remote or ‘worst case’ scenarios or ‘stress tests’.

(ii) Foreign exchange risk

The Company is exposed to foreign exchange risk arising from operating, investing and financing activities. Foreign exchange risk is managed within the range of the possible effect on the Company’s cash flows. Foreign exchange risk (i.e. foreign currency translation of overseas operating assets and liabilities) not affecting the Company’s cash flows is not hedged but can be hedged at a particular situation.

As of December 31, 2023 and 2022, if the foreign exchange rate had strengthened or weakened by 10% with all other variables held constant, the effects on profit before income tax and equity would have been as follows:

(in millions of Korean won) Fluctuation of foreignexchange rate Impact on profitbefore income tax ^1^ Impact onequity
2023.12.31 + 10 % ~~W~~ (8,253 ) ~~W~~ (14,603 )
- 10 % 8,253 14,603
2022.12.31 + 10 % ~~W~~ (7,672 ) ~~W~~ (17,684)
- 10 % 7,672 17,684
^1^ Computed with consideration of derivatives hedging effect applied by the Company to hedge foreign exchange risk<br>of liabilities in foreign currencies.
--- ---

94

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

The analysis above is a simple sensitivity analysis, which assumes that all the variables other than foreign exchange rates are held constant. Therefore, the analysis does not reflect any correlation between foreign exchange rates and other variables, nor management’s decision to decrease the risk.

Details of financial assets and liabilities in foreign currencies as of December 31, 2023 and 2022, are as follows:

(in thousands of foreign currencies) December 31, 2022
Financialliabilities Financialassets Financialliabilities
48,568 ~~W~~ 2,083,110 ~~W~~ 55,617 ~~W~~ 2,186,739
SDR 254 722 255 722
400,000 400,000
1 6 1 6
RWF 402 462
VND 169,366 280,226
TZS 21,958 1,464
BWP 680 183
SGD 284,000
PKR 114,025
THB 244 265

All values are in Japanese Yen.

(iii) Price risk

As of December 31, 2023 and 2022, the Company is exposed to equity securities price risk because the securities held by the Company are traded in active markets. If the increased or decreased by 10% with all other variables held constant, the effects on profit before income tax and equity would have been as follows:

(in millions of Korean won) Fluctuation of price Impact on profitbefore tax Impact on equity
2023.12.31 + 10 % ~~W~~ ~~W~~ 120,533
- 10 % (120,533 )
2022.12.31 + 10 % ~~W~~ ~~W~~ 112,222
- 10 % (112,222 )

The analysis above is based on the assumption that the equity index increased or decreased by 10% with all other variables held constant and all the Company’s marketable equity instruments moved according to the historical correlation with the index. Equity would increase or decrease as a result of gain or loss on equity securities classified as financial assets at fair value through profit or loss and financial assets at fair value through other comprehensive income.

95

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(iv) Cash flow and fair value interest rate risk

The Company’s interest rate risk arises from liabilities in foreign currency such as foreign currency debentures. Debentures in foreign currency issued at variable rates expose the Company to cash flow interest rate risk which is partially offset by swap transactions. Debentures and borrowings issued at fixed rates expose the Company to fair value interest rate risk. The Company sets the policy and operates to minimize the uncertainty of changes in interest rates and financial costs.

As of December 31, 2023 and 2022, if the market interest rate increased or decreased by 100bp with other variables held constant, the effects on profit before income tax and equity would be as follows:

(in millions of Korean won) Fluctuation of interestrate Impact on profitbefore tax Impact on equity
2023.12.31 + 100 bp ~~W~~ (31 ) ~~W~~ (2,745 )
- 100 bp 34 3,047
2022.12.31 + 100 bp ~~W~~ (30 ) ~~W~~ (2,338 )
- 100 bp (4 ) 2,361

The analysis above is a simple sensitivity analysis which assumes that all the variables other than market interest rates are held constant. Therefore, the analysis does not reflect any correlation between market interest rates and other variables, nor the management’s decision to decrease the risk.

2) Credit risk

Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its contractual obligations, and arises principally from the Company’s trade receivables from customers, debt securities and others.

Risk management

Credit risk is managed on the Company basis with the purpose of minimizing financial loss. Credit risk arises from the normal transactions and investing activities, where clients or other party fails to discharge an obligation on contract conditions. To manage credit risk, the Company considers the counterparty’s credit based on the counterparty’s financial conditions, default history and other important factors.

Credit risk arises from cash and cash equivalents, derivative financial instruments and deposits with banks and financial institutions, as well as outstanding receivables. To minimize such risk, only financial institutions with strong credit ratings are accepted.

The Company’s investments in debt instruments are considered to be low risk investments. The credit ratings of the investments are monitored for credit deterioration.

96

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Security

For some trade receivables, the Company may obtain security in the form of guarantees or letters of credit, etc. which can be called upon if the counterparty defaults under the terms of the agreement.

Impairment of financial assets

The Company has three types of financial assets that are subject to the expected credit loss model:

trade receivables for sales of goods and provision of services,
contract assets relating to provision of services, and
--- ---
other financial assets carried at amortized cost.
--- ---

While cash equivalents are also subject to the impairment requirement, the identified expected credit loss is immaterial.

The maximum exposure to credit risk of the Company’s financial instruments without considering the value of collaterals as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Cash and cash equivalents (except for cash on hand) ~~W~~ 1,232,004 ~~W~~ 954,935
Trade and other receivables
Financial assets at amortized costs 3,444,788 3,453,513
Financial assets at fair value through other comprehensive income 116,198 129,124
Contract assets 774,435 724,500
Other financial assets
Derivatives financial assets for hedging purposes 156,774 185,989
Financial assets at fair value through profit or loss 441,321 410,388
Financial assets at amortized costs 377,996 416,294
Total ~~W~~ 6,543,516 ~~W~~ 6,274,743

The Company is exposed to credit risk for financial guarantee contracts. As of December 31, 2023, the Company’s maximum exposure amount is ~~W~~ 595 million (2022: ~~W~~ 653 million).

97

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(i) Trade receivables at amortized costs

The Company applies the simplified approach to measuring expected credit loss allowance, which uses lifetime expected credit loss for all trade receivables at amortized costs.

The Company measures the expected credit loss by considering the future irrecoverability rate of the remaining balance of trade receivables and other receivables at the end of the reporting period. Each trade receivables and other receivables are classified considering the credit risk characteristics and overdue periods in order to measure expected credit loss. The expected credit loss rate calculation is based on historical payment and credit loss information in relation to revenue for 36 months period up to December 31, 2023.

The expected credit losses reflect forward-looking information. Provision for impairment as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Less than<br><br><br>6 months 7-12 months More than<br><br><br>1 years Total
Expected credit loss rate 5.87 % 16.17 % 47.95 %
Gross carrying amount ~~W~~ 2,929,384 ~~W~~ 60,298 ~~W~~ 204,541 ~~W~~ 3,194,223
Provision for impairment (171,816 ) (9,752 ) (98,075 ) (279,643 )
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- --- --- --- --- ---
Less than<br><br><br>6 months 7-12 months More than<br><br><br>1 years Total
Expected credit loss rate 5.72 % 17.38 % 63.85 %
Gross carrying amount ~~W~~ 2,952,701 ~~W~~ 38,246 ~~W~~ 161,922 ~~W~~ 3,152,869
Provision for impairment (168,974 ) (6,646 ) (103,384 ) (279,004 )

Details of changes in provisions for impairment the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Beginning balance ~~W~~ 279,004 ~~W~~ 282,661
Increase in loss allowance recognized in profit or loss during the year 55,121 49,727
Receivables written off during the year as uncollectible (54,482 ) (53,384 )
Ending balance ~~W~~ 279,643 ~~W~~ 279,004

98

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

As of December 31, 2023, the maximum exposure of the trade receivables carrying amount to credit risk is ~~W~~ 2,914,580 million (2022: ~~W~~ 2,873,865 million).

Losses recognized in profit or loss in relation to impaired trade receivables for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Impairment loss
Bad debt expenses ~~W~~ 55,121 ~~W~~ 49,727
(ii) Cash equivalents (except for cash on hand)
--- ---

The Company is also exposed to credit risk in relation to cash equivalents. The maximum exposure, as of December 31, 2023, is the carrying amount of these investments.

(iii) Other financial assets at amortized costs

Other financial assets at amortized cost include time deposits, other long-term financial instruments, and others.

All of the financial assets at amortized costs are considered to have low credit risk, and the loss allowance recognized during the period was, therefore, limited to 12 months expected losses. Management considers ‘low credit risk’ for other instruments when they have a low risk of default and the issuer has a strong capacity to meet its contractual cash flow obligations in the near term.

Details of changes in provisions for impairment the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Beginning balance ~~W~~ 30,978 ~~W~~ 44,374
Increase in loss allowance recognized in profit or loss during the year 25,636 13,866
Receivables written off during the year as uncollectible (26,568 ) (27,262 )
Ending balance ~~W~~ 30,046 ~~W~~ 30,978
(iv) Financial assets at fair value through profit or loss
--- ---

The Company is also exposed to credit risk in relation to financial assets that are measured at fair value through profit or loss. The maximum exposure, as of December 31, 2023, is the carrying amount of these investments.

99

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

3) Liquidity risk

The Company manages its liquidity risk by liquidity strategy and plans. The Company considers the maturity of financial assets and financial liabilities and the estimated cash flows from operations.

The table below analyzes the Company’s liabilities (including interest expenses) into relevant maturity groups based on the remaining period at the report date to the contractual maturity date and these amounts are contractual undiscounted cash flows and can differ from the amount in the separate financial statement:

(in millions of Korean won) December 31, 2023
Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Trade and other payables ~~W~~ 4,241,409 ~~W~~ 726,864 ~~W~~ 3,030 ~~W~~ 4,971,303
Borrowings (including debentures) 1,873,302 4,750,825 1,665,353 8,289,480
Lease liabilities 224,478 171,022 275,584 671,084
Others^1^ 595 595
Total ~~W~~ 6,339,784 ~~W~~ 5,648,711 ~~W~~ 1,943,967 ~~W~~ 13,932,462
(in millions of Korean won) December 31, 2022
Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Trade and other payables ~~W~~ 4,422,798 ~~W~~ 927,888 ~~W~~ 80,715 ~~W~~ 5,431,401
Borrowings (including debentures) 1,180,004 5,367,808 1,877,126 8,424,938
Lease liabilities 240,518 441,836 321,393 1,003,747
Others^1^ 653 653
Total ~~W~~ 5,843,973 ~~W~~ 6,737,532 ~~W~~ 2,279,234 ~~W~~ 14,860,739
^1^ Consists of the maximum limit related to joint responsibility and agreement of assumption of debts. The cash<br>flows on agreements are classified based on the earliest period that the agreement can be executed (Note 19).
--- ---

100

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

As of December 31, 2023, the cash outflows and inflows by maturity of the Company’s derivatives held for trading and gross-settled derivatives, are as follows:

(in millions of Korean won) December 31, 2023
Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Derivatives held for trading^1^
Inflows ~~W~~ ~~W~~ ~~W~~ 1,403 ~~W~~ 1,403
Outflows 1,064 1,064
Derivatives settled gross^2^
Outflows ~~W~~ 686,077 ~~W~~ 1,169,902 ~~W~~ 8,126 ~~W~~ 1,864,105
Inflows 534,176 2,139,775 35,845 2,709,796
^1^ During the year ended December 31, 2023, derivative liabilities held-for-trading are classified under the ‘more than 5 years’ category as they are relevant to the fair value of derivatives liabilities in the amount of ~~W~~ 1,403 million, which<br>is recognized in connection with the acquisition of Epsilon Global Communications Pte. Ltd. (Note 19).
--- ---

As these derivatives held-for-trading are managed based on net fair value, their contractual maturities are not necessarily taking into consideration to understand the timing of cash flows.

^2^ Cash outflow and inflow of gross-settled derivatives are undiscounted contractual cash flow and may differ from<br>the amount in the separate statement of financial position.
(in millions of Korean won) December 31, 2022
--- --- --- --- --- --- --- --- ---
Less than<br><br><br>1 year 1-5 years More than<br><br><br>5 years Total
Derivatives held for trading^1^
Outflows ~~W~~ ~~W~~ ~~W~~ 5,164 ~~W~~ 5,164
Derivatives settled gross^2^
Outflows ~~W~~ 407,526 ~~W~~ 2,451,015 ~~W~~ 28,786 ~~W~~ 2,887,327
Inflows 483,374 2,622,968 36,878 3,143,220
^1^ During the year ended December 31, 2022, derivative liabilities held-for-trading are classified under the ‘more than 5 years’ category as they are relevant to the fair value of derivatives liabilities in the amount of ~~W~~ 4,234 million, which<br>is recognized in connection with the acquisition of Epsilon Global Communications Pte. Ltd. (Note 19).
--- ---

As these derivatives held-for-trading are managed based on net fair value, their contractual maturities are not necessarily taken into consideration to understand the timing of cash flows.

^2^ Cash outflow and inflow of gross-settled derivatives are undiscounted contractual cash flow and may differ from<br>the amount in the separate statement of financial position.

Meanwhile, as of December 31, 2023, the Company has an investment obligation of ~~W~~ 59,135 million to invest Kiamco Data Center Blind Fund, a related party, and others, and ~~W~~ 4,132 million and USD 30,350 thousand to make payment using the future Capital Call method (Notes 19 and 34).

101

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) Capital Risk Management

The Company’s objectives when managing capital are to safeguard the Company’s ability to continue as a going concern in order to provide returns for shareholders and benefits for other stakeholders and to maintain an optimal capital structure to reduce the cost of capital.

The Company’s capital structure consists of liabilities including borrowings, cash and cash equivalents, and shareholders’ equity. The treasury department monitors the Company’s capital structure and considers cost of capital and risks related to each capital component.

The Company’s debt-to-equity ratios as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Total liabilities ~~W~~ 15,265,380 ~~W~~ 15,559,694
Total equity 15,043,539 14,858,080
Debt-to-equity<br>ratio 101 % 105 %

The Company manages capital on the basis of the gearing ratio. The ratio is calculated as net debt divided by total capital. Net debt is calculated as total borrowings less cash and cash equivalents. Total capital is calculated as ‘equity’ as shown in the separate statement of financial position plus net debt.

The Company’s gearing ratios as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Total borrowings ~~W~~ 7,559,933 ~~W~~ 7,495,561
Less: cash and cash equivalents (1,242,005 ) (966,307 )
Net debt 6,317,928 6,529,254
Total equity 15,043,539 14,858,080
Total capital ~~W~~ 21,361,467 ~~W~~ 21,387,334
Gearing ratio 30 % 31 %

102

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(3) Offsetting Financial Assets and Financial Liabilities

Details of the Company’s financial assets recognized, subject to enforceable master netting arrangements or similar agreements, as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Grossassets Gross<br><br><br>liabilities<br><br><br>offset Net amountspresented inthe statementof financialposition Amounts not offset Netamount
Financialinstruments Cashcollateral
Trade receivables ~~W~~ 62,483 ~~W~~ (4,595 ) ~~W~~ 57,888 ~~W~~ (56,194 ) ~~W~~ ~~W~~ 1,694
Total ~~W~~ 62,483 ~~W~~ (4,595 ) ~~W~~ 57,888 ~~W~~ (56,194 ) ~~W~~ ~~W~~ 1,694
(in millions of Korean won) December 31, 2022
Grossassets Grossliabilitiesoffset Net amountspresented inthe statementof financialposition Amounts not offset Netamount
Financialinstruments Cashcollateral
Trade receivables ~~W~~ 48,282 ~~W~~ (2,206 ) ~~W~~ 46,076 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 1,558
Total ~~W~~ 48,282 ~~W~~ (2,206 ) ~~W~~ 46,076 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 1,558

These include price subject to netting arrangements on facility interconnection and data sharing among telecommunication companies.

103

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

Details of the Company’s financial liabilities recognized, subject to enforceable master netting arrangements or similar agreements, as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Grossliabilities Grossassets<br><br><br>offset Net amountspresented inthe statementof financial<br><br><br>position Amounts not offset Netamount
Financialinstruments Cashcollateral
Trade payables ~~W~~ 74,515 ~~W~~ (4,594 ) ~~W~~ 69,921 ~~W~~ (56,194 ) ~~W~~ ~~W~~ 13,727
Total ~~W~~ 74,515 ~~W~~ (4,594 ) ~~W~~ 69,921 ~~W~~ (56,194 ) ~~W~~ ~~W~~ 13,727
(in millions of Korean won) December 31, 2022
Grossliabilities Grossassets<br><br><br>offset Net amountspresented inthe statementof financial<br><br><br>position Amounts not offset Netamount
Financialinstruments Cashcollateral
Trade payables ~~W~~ 62,551 ~~W~~ (2,206 ) ~~W~~ 60,345 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 15,827
Total ~~W~~ 62,551 ~~W~~ (2,206 ) ~~W~~ 60,345 ~~W~~ (44,518 ) ~~W~~ ~~W~~ 15,827

These include price subject to netting arrangements on facility interconnection and data sharing among telecommunication companies.

104

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

36. Fair Value
(1) Fair Value by Financial Instruments Category
--- ---

Carrying amounts and fair values of the financial assets and financial liabilities by category as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023 December 31, 2022
Carryingamount Fair value Carryingamount Fair value
Financial assets
Cash and cash equivalents ~~W~~ 1,242,005 ^1^ ~~W~~ 966,307 ^1^
Trade and other receivables
Financial assets measured at amortized cost 3,444,788 ^1^ 3,453,513 ^1^
Financial assets at fair value through other comprehensive income 116,198 116,198 129,124 129,124
Other financial assets
Financial assets measured at amortized cost 377,996 ^1^ 416,294 ^1^
Financial assets at fair value through profit or loss 441,321 441,321 410,388 410,388
Financial assets at fair value through other comprehensive income 1,437,684 1,437,684 1,214,059 1,214,059
Derivative financial assets for hedging purpose 156,774 156,774 185,989 185,989
Total 7,216,766 ~~W~~ 6,775,674
Financial liabilities
Trade and other payables^2^ ~~W~~ 4,659,037 ^1^ ~~W~~ 5,390,106 ^1^
Borrowings 7,559,933 7,328,734 7,495,561 6,968,828
Other financial liabilities
Financial assets at fair value through profit or loss 1,403 1,403 5,164 5,164
Derivative financial liabilities for hedging purpose 23,076 23,076 32,402 32,402
Total ~~W~~ 12,243,449 ~~W~~ 12,923,233
^1^ The Company did not conduct fair value estimation since the book amount is a reasonable approximation of the<br>fair value.
--- ---
^2^ Amounts related to employee benefit plans are included in trade and other payables at the end of the previous<br>year
--- ---

105

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(2) Fair Value Hierarchy

Assets measured at fair value or for which the fair value is disclosed are categorized within the fair value hierarchy, and the defined levels are as follows:

Level 1: The quoted (unadjusted) price in active markets for identical assets or liabilities that an entity<br>can access at the measurement date.
Level 2: All inputs other than quoted prices included in Level 1 that are observable (either directly<br>that is, or indirectly that is, derived from prices) for the asset or liability.
--- ---
Level 3: The unobservable inputs for the asset or liability.
--- ---

Fair value hierarchy classifications of the financial assets and financial liabilities that are measured or disclosed at fair value or its fair value is disclosed as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Level 1 Level 2 Level 3 Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ ~~W~~ 116,198 ~~W~~ ~~W~~ 116,198
Other financial assets
Financial assets at fair value through profit or loss 441,321 441,321
Financial assets at fair value through other comprehensive income 1,236,495 201,189 1,437,684
Derivative financial assets for hedging 156,774 156,774
Investment properties^^ 4,402,271 4,402,271
Total ~~W~~ 1,236,495 ~~W~~ 272,972 ~~W~~ 5,044,781 ~~W~~ 6,554,248
Liabilities
Borrowings ~~W~~ ~~W~~ 7,328,734 ~~W~~ ~~W~~ 7,328,734
Other financial liabilities
Financial assets at fair value through profit or loss 1,403 1,403
Derivative financial liabilities for hedging 23,077 23,077
Total ~~W~~ ~~W~~ 7,351,811 ~~W~~ 1,403 ~~W~~ 7,353,214

106

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Level 1 Level 2 Level 3 Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ ~~W~~ 129,124 ~~W~~ ~~W~~ 129,124
Other financial assets
Financial assets at fair value through profit or loss 410,388 410,388
Financial assets at fair value through other comprehensive income 1,015,606 198,453 1,214,059
Derivative financial assets for hedging 185,989 185,989
Investment properties^^ 3,182,157 3,182,157
Total ~~W~~ 1,015,606 ~~W~~ 315,113 ~~W~~ 3,790,998 ~~W~~ 5,121,717
Liabilities
Borrowings ~~W~~ ~~W~~ 6,968,828 ~~W~~ ~~W~~ 6,968,828
Other financial liabilities
Financial assets at fair value through profit or loss 5,164 5,164
Derivative financial liabilities for hedging 32,402 32,402
Total ~~W~~ ~~W~~ 7,001,230 ~~W~~ 5,164 ~~W~~ 7,006,394

107

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(3) Transfers between Fair Value Hierarchy Levels of Recurring Fair Value Measurements
1) Details of transfers between Level 1 and Level 2 of the fair value hierarchy for recurring fair value<br>measurements.
--- ---

There are no transfers between Level 1 and Level 2 of the fair value hierarchy for the recurring fair value measurements.

2) Details of changes in Level 3 of the fair value hierarchy for the recurring fair value measurements.<br>

Details of changes in Level 3 of the fair value hierarchy for recurring fair value measurements for the years ended December 31, 2023 and 2022 are as follows

(in millions of Korean won) 2023
Financial assets Financial liabilities
Financialassets at fairvalue throughprofit or loss Financial assets at fairvalue through othercomprehensiveincome Financial liabilities at<br><br><br>fair value through<br> <br>profitor loss
Beginning balance ~~W~~ 410,388 ~~W~~ 198,453 ~~W~~ 5,164
Amount recognized in profit or loss (13,158 ) 1,444
Amount recognized in other comprehensive income (5,141 )
Acquisition 46,437 10,267
Disposal (2,347 ) (6 ) (5,205 )
Replacement (2,384 )
Ending balance ~~W~~ 441,320 ~~W~~ 201,189 ~~W~~ 1,403

108

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) 2022
Financial assets Financial liabilities
Financialassets at fairvalue throughprofit or loss Financial assets atfair value throughothercomprehensiveincome Derivatives<br><br><br>used for<br><br><br>hedging Financial liabilities at fairvalue through profit orloss
Beginning balance ~~W~~ 299,263 ~~W~~ 190,821 ~~W~~ 31,565 ~~W~~ 5,329
Amount recognized in profit or loss (1,150 ) (165 )
Amount recognized in other comprehensive income (14 )
Acquisition 115,415 4,646
Disposal (140 ) (31,565 )
Replacement (3,000 ) 3,000
Ending balance ~~W~~ 410,388 ~~W~~ 198,453 ~~W~~ ~~W~~ 5,164

109

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(4) Valuation Techniques and Inputs

Valuation methods used in recurring fair value measurements categorized within Level 2 and Level 3 of the fair value hierarchy as of December 31, 2023 and 2022, are as follows:

(in millions of Korean won) December 31, 2023
Fair value Level Valuation techniques Inputs
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ 116,198 2 DCF Model Guaranteed bond<br>interest rate
Other financial assets
Financial assets at fair value through profit or loss 441,321 3 DCF Model,<br> <br>Adjusted Net Asset Model,<br><br><br>Binomial Option Pricing<br>Model, Monte Carlo<br>Simulation
Financial assets at fair value through other comprehensive income 201,189 3 Market Approach Model
Derivative financial assets for hedging 156,774 2 DCF Model Market observation<br>discount rate
Investment properties 4,402,271 3 DCF Model
Liabilities
Borrowings 7,328,734 2 DCF Model Corporate bond<br>interest rate
Other financial liabilities
Financial assets at fair value through profit or loss 1,403 3 Binomial Option Pricing<br>Model
Derivative financial liabilities for hedging 23,077 2 DCF Model Market observation<br>discount rate

110

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(in millions of Korean won) December 31, 2022
Fair value Level Valuation techniques Inputs
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income ~~W~~ 129,124 2 DCF Model Guaranteed bond<br>interest rate
Other financial assets
Financial assets at fair value through profit or loss 410,388 3 DCF Model,<br> <br>Adjusted Net Asset Model,<br><br><br>Binomial Option Pricing<br>Model, Monte Carlo<br>Simulation
Financial assets at fair value through other comprehensive income 198,453 3 Market Approach Model
Derivative financial assets for hedging purpose 185,989 2 DCF Model Market observation<br>discount rate
Investment properties 3,182,157 3 DCF Model
Liabilities
Borrowings 6,968,828 2 DCF Model Corporate bond<br>interest rate
Other financial liabilities
Financial assets at fair value through profit or loss 5,164 3 Binomial Option Pricing<br>Model, Monte Carlo<br>Simulation
Derivative financial liabilities for hedging purpose 32,402 2 DCF Model Market observation<br>discount rate

111

KT Corporation

Notes to the Separate Financial Statements

December31, 2023 and 2022

(5) Valuation Processes for Fair Value Measurements Categorized Within Level 3

The Company uses external experts that perform the fair value measurements required for financial reporting purposes. External experts report directly to the chief financial officer (CFO), and discusses valuation processes and results with the CFO in line with the Company’s closing dates.

(6) Gains and Losses on Valuation at the Transaction Date

In the case that the Company values derivative financial instruments using inputs not based on observable market data, and the fair value calculated by the said valuation technique differs from the transaction price, then the fair value of the financial instruments is recognized as the transaction price. The difference between the fair value at initial recognition and the transaction price is deferred and amortized using a straight-line method by maturity of the financial instrument. However, in the case where inputs of the valuation techniques become observable in markets, the remaining deferred difference is immediately recognized in full as profit for the year.

Changes in deferred amount for the years ended December 31, 2023 and 2022, are as follows:

(in millions of Korean won) 2023 2022
Derivatives usedfor hedging Derivatives usedfor hedging
I. Beginning balance ~~W~~ ~~W~~ 832
II. New transactions
III. Recognized at fair value through profit or loss (832 )
IV. Ending balance (I+II+III) ~~W~~ ~~W~~
37. Events After the Reporting Period ****
--- ---
(1) The Company has decided to acquire treasury stocks (~~W~~27,100 million) in accordance with a<br>resolution of the Board of Directors dated February 7, 2024, to enhance shareholder value. The acquired treasury stocks will be retired in March 2024.
--- ---
(2) The company issued the following bonds after the end of the reporting period (unit: ~~W~~<br>million).
--- ---
Type Issued Date Annual interestrates Maturity Koreanwon
--- --- --- --- --- --- --- --- --- ---
The 200-1st Public bond Feb. 27, 2024 3.552 % Feb. 27, 2026 120,000
The 200-2nd Public bond Feb. 27, 2024 3.608 % Feb. 26, 2027 200,000
The 200-3rd Public bond Feb. 27, 2024 3.548 % Feb. 27, 2029 80,000

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Deloitte Anjin LLC<br> <br>9F., One IFC,<br><br><br>10, Gukjegeumyung-ro,<br> <br>Youngdeungpo-gu, Seoul<br><br><br>07326, Korea<br> <br><br><br><br>Tel: +82 (2) 6676 1000<br> <br>Fax: +82 (2) 6674 2114<br><br><br>www.deloitteanjin.co.kr

INDEPENDENT AUDITOR’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

English Translation of Independent Auditor’s Report on Internal Control over Financial Reporting Originally Issued in Korean on March 18, 2024

To the shareholders and the Board of Directors of KT Corporation

Audit Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of KT Corporation (the “Company”) as of December 31, 2023, based on ‘Conceptual Framework for Design and Operation of Internal Control over Financial Reporting’.

In our opinion, the Company’s internal control over financial reporting is designed and operated effectively as of December 31, 2023, in all material respects, in accordance with the ‘Conceptual Framework for Design and Operation of Internal Control over Financial Reporting’.

We have also audited, in accordance with the Korean Standards on Auditing (“KSAs”), the financial statements of the Company, which comprise the statement of financial position as of December 31, 2023, and the statement of profit or loss, statement of comprehensive income, statement of changes in shareholders’ equity and statement of cash flows, for the year then ended, and notes to the financial statements, including material accounting policy information, and our report dated March 18, 2024, expressed an unqualified opinion.

Basis for Audit Opinion

We conducted our audits in accordance with the KSAs. Our responsibilities under those standards are further described in the Auditor’s Responsibilities for the Audit of the Internal Control over Financial Reporting section of our report. We are independent of the Company in accordance with the ethical requirements that are relevant to our audits of the internal control over financial reporting 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.

Responsibilitiesof Management and Those Charged with Governance for the Internal Control over Financial Reporting

Management is responsible for designing, operating and maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report on the Effectiveness of the Internal Control over Financial Reporting by CEO. Those Charged with Governance is responsible for the oversight of internal control over financial reporting of the Company.

Auditor’s Responsibilities for the Audit of the Internal Control over Financial Reporting

Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We conducted our audit in accordance with the KSAs. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee (“DTTL”), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as “Deloitte Global”) does not provide services to clients. Please see www.deloitte.com/kr/about to learn more about our global network of member firms.

Deloitte Touche Tohmatsu Limited is a private company limited by guarantee incorporated in England & Wales under company number 07271800, and its registered office is Hill House, 1 Little New Street, London, EC4a, 3TR, United Kingdom.

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LOGO

The audit of internal control over financial reporting involves performing procedures to obtain audit evidence about whether a material weakness exists. The procedures selected depend on the auditor’s judgment, including the assessment of the risks of that a material weakness exists. The audit includes obtaining an understanding of internal control over financial reporting and testing and evaluating the design and operating effectiveness of internal control over financial reporting based on the assessed risks.

Definition and Limitations of Internal Control over Financial Reporting

A group’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with Korean International Financial Reporting Standards (“K-IFRS”). A group’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the group; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with K-IFRS, and that receipts and expenditures of the group are being made only in accordance with authorizations of management and directors of the group; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the group’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

The engagement partner on the audit resulting in this independent auditor’s report is Lee, Dong Hyun.

LOGO

March 18, 2024

Notice to Readers

This report is effective as of March 18, 2024, the auditor’s report date. Certain subsequent events or circumstances may have occurred between the auditor’s report date and the time the auditor’s report is read. Such events or circumstances could significantly affect the Company’s internal control over financial reporting and may result in modifications to the auditor’s report.

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Report on the Effectiveness of

the Internal Control over Financial Reporting

To the Shareholders, Audit Committee and Board of Directors of

KT Corporation

We, as the Chief Executive Officer (“CEO”) and the Internal Control over Financial Reporting (“ICFR”) Officer of KT Corporation (“the Company”), assessed the effectiveness of the design and operation of the Company’s Internal Control over Financial Reporting for the year ended December 31, 2023.

The Company’s management, including ourselves, is responsible for designing and operating ICFR.

We assessed the design and operating effectiveness of the ICFR in the prevention and detection of an error or fraud which may cause material misstatements in the preparation and disclosure of reliable financial statements.

We designed and operated ICFR in accordance with Conceptual Framework for Designing and Operating Internal Control over Financial Reporting established by the Operating Committee of Internal Control over Financial Reporting in Korea (“the ICFR Committee”), And, we conducted an evaluation of ICFR based on Management Guideline for Evaluating and Reporting Effectiveness of Internal Control over Financial Reporting established by the ICFR Committee.

Based on the assessment results, we believe that the Company’s ICFR, as at December 31, 2023, is designed and operating effectively, In all material respects, in conformity with the Conceptual Framework for Designing and Operating Internal Control over Financial Reporting.

We certify that this report does not contain any untrue statement of a fact, or omit to state a fact necessary to be presented herein. We also certify that this report does not contain or present any statement which cause material misunderstandings, and we have reviewed and verified this report with sufficient due care.

February 20, 2024

Chief Executive Officer
Internal Control over Financial Reporting Officer

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