6-K

SECURITIES AND EXCHANGECOMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2025

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: September 5, 2025
KT Corporation
By:	/s/ Jaegil Choi
Name: Jaegil Choi
Title: IRO
By:	/s/ Sanghyun Cho
Name: Sanghyun Cho
Title: IR Team Leader

KT Corporation and Its Subsidiaries

Consolidated Interim Financial Statements

June 30, 2025 and 2024, and December 31, 2024

ATTACHMENT: INDEPENDENT AUDITOR’S REVIEW REPORT

KT Corporation

KT Corporation and Its Subsidiaries

Index

June 30, 2025 and 2024,and December 31, 2024

	Page(s)
Report on Review of Consolidated Interim FinancialStatements	1 – 2
Consolidated Interim Financial Statements
Consolidated Interim Statements of Financial Position	3 – 4
Consolidated Interim Statements of Profit or Loss	5
Consolidated Interim Statements of Comprehensive Income	6
Consolidated Interim Statements of Changes in Equity	7 – 8
Consolidated Interim Statements of Cash Flows	9 – 10
Notes to the Consolidated Interim Financial Statements	11 – 76

Deloitte Anjin LLC<br> <br>9F., One IFC,<br><br><br>10, Gukjegeumyung-ro,<br> <br>Youngdeungpo-gu, Seoul<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 Review Report

[English Translation of Independent Auditor’s Review Report Originally Issued in Korean on August 14, 2025]

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

Reviewed Consolidated Interim Financial Statements

We have reviewed the accompanying consolidated interim financial statements of KT Corporation and its subsidiaries (the “Group”). The consolidated interim financial statements consist of the consolidated statement of financial position as of June 30, 2025, and the related consolidated interim statements of profit or loss and comprehensive income for the three-month and six-month periods ended June 30, 2025 and 2024, and changes in equity and cash flows for the six-month periods ended June 30, 2025 and 2024, all expressed in Korean won, and a summary of significant accounting policies and other explanatory notes.

Management’s Responsibility for the Consolidated Interim Financial Statements

Management is responsible for the preparation and fair presentation of these consolidated interim financial statements in accordance with Korean International Financial Reporting Standards (“K-IFRS”) No. 1034 Interim Financial Reporting, and for such internal control as management determines is necessary to enable the preparation of consolidated interim financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’s Responsibility

Our responsibility is to express a conclusion on these consolidated interim financial statements based on our reviews.

We conducted our reviews in accordance with the Review Standards for Quarterly and Semi-annual Financial Statements established by the Securities and Futures Commission of the Republic of Korea. A review of consolidated interim financial statements consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with Korean Standards on Auditing (“KSA”) and consequently, does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an 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.

LOGO

Conclusion

Based on our reviews, nothing has come to our attention that causes us to believe that the accompanying consolidated interim financial statements referred to above do not present fairly, in all material respects, the financial position as of June 30, 2025, and its financial performance and its cash flows for the six-month periods ended June 30, 2025 in accordance with K-IFRS No.1034 Interim Financial Reporting.

Other Matters

We have audited the consolidated statement of financial position of the Group as of December 31, 2024, and the related consolidated statement of profit or loss, comprehensive income, changes in equity and cash flows for the year then ended, which are not accompanying this report, in accordance with KSA. We expressed an unqualified opinion on those consolidated financial statements in our audit report dated March 13, 2025. The accompanying consolidated statement of financial position as of December 31, 2024, presented for comparative purposes, is not different from the audited consolidated statement of financial position above in all material respects.

LOGO

Seoul, Korea

August 14, 2025

Notice to Readers

This review report is effective as of August 14, 2025, the auditor’s review report date. Certain subsequent events or circumstances may have occurred between the auditor’s review report date and the time the auditor’s review report is read. Such events or circumstances could significantly affect the financial statements and may result in modifications to the auditor’s review report.

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Financial Position

As of June 30, 2025 and December 31, 2024

(In millions of Korean won)		June 30, 2025		December 31, 2024
Assets
Current assets
Cash and cash equivalents	4,29	~~W~~	3,794,410	~~W~~	3,716,680
Trade and other receivables, net	4,5,29		6,440,547		6,147,456
Other financial assets	4,6,29		1,224,403		1,344,248
Current income tax assets			1,845		1,213
Inventories, net	7		443,915		940,209
Other current assets	8		2,480,255		2,102,131
Total current assets			14,385,375		14,251,937
Non-current assets
Trade and other receivables, net	4,5,29		1,797,740		1,540,727
Other financial assets	4,6,29		2,905,193		2,759,170
Property and equipment, net	9		14,226,369		14,825,814
Right-of-use<br>assets	16		1,143,462		1,212,770
Investment properties, net	9		2,917,589		2,299,616
Intangible assets, net	9		1,698,526		1,862,740
Investments in associates and joint ventures	10		1,582,930		1,562,232
Deferred income tax assets			620,998		671,609
Net defined benefit assets	14		26,804		49,351
Other non-current assets	8		888,341		843,991
Total non-current assets			27,807,952		27,628,020
Total assets		~~W~~	42,193,327	~~W~~	41,879,957

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Financial Position

As of June 30, 2025 and December 31, 2024

(In millions of Korean won)		June 30, 2025			December 31, 2024
Liabilities
Current liabilities
Trade and other payables	4,11,29	~~W~~	7,077,741		~~W~~	7,394,791
Borrowings	4,12,29		2,934,328			3,904,752
Other financial liabilities	4,6,29		343,914			351,632
Current income tax liabilities			322,055			123,145
Other provisions	13,15		116,692			112,530
Deferred income	19		60,239			62,247
Other current liabilities	4,8,16		1,268,528			1,925,637
Total current liabilities			12,123,497			13,874,734
Non-current liabilities
Trade and other payables	4,11,29		383,657			578,409
Borrowings	4,12,29		7,815,858			6,615,938
Other financial liabilities	4,6,29		739,295			722,517
Net defined benefit liabilities	14		219,065			128,457
Other provisions	13		112,531			111,877
Deferred income	19		212,000			148,960
Deferred income tax liabilities			983,239			919,996
Other non-current liabilities	4,8,16		727,067			782,520
Total non-current liabilities			11,192,712			10,008,674
Total liabilities			23,316,209			23,883,408
Equity attribute to owners of the controlling company
Share capital			1,564,499			1,564,499
Share premium			1,440,258			1,440,258
Retained earnings	17		14,739,886			13,779,776
Accumulated other comprehensive income			216,038			63,729
Other components of equity	18		(836,845	)		(637,560	)
			17,123,836			16,210,702
Non-controlling interest			1,753,282			1,785,847
Total equity			18,877,118			17,996,549
Total liabilities and equity		~~W~~	42,193,327		~~W~~	41,879,957

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

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Profit or Loss

For the three-month and six-month periods ended June 30, 2025 and 2024

			Three-Month and Six-Month Periods Ended June 30
			2025				2024
(In millions of Korean won, except per share amounts)	Notes		Three-month		Six-month		Three-month			Six-month
Operating revenue		19,27	~~W~~	7,427,337	~~W~~	14,272,454	~~W~~	6,546,399		~~W~~	13,200,973
Operating expenses		20		6,412,519		12,568,865		6,052,413			12,200,487
Operating profit		27		1,014,818		1,703,589		493,986			1,000,486
Other income		21		9,284		74,646		107,459			180,297
Other expenses		21		36,101		73,911		48,027			118,399
Finance income		22		348,136		476,230		218,356			468,632
Finance costs		22		376,947		501,306		212,032			452,524
Share of net profits (losses) of associates and joint ventures		10		15,739		7,511		(3,033	)		7,205
Profit before income tax				974,929		1,686,759		556,709			1,085,697
Income tax expense		23		241,647		386,678		146,168			282,153
Profit for the period			~~W~~	733,282	~~W~~	1,300,081	~~W~~	410,541		~~W~~	803,544
Profit for the period attributable to:
Owners of the Controlling Company			~~W~~	687,941	~~W~~	1,227,780	~~W~~	393,025		~~W~~	768,555
Non-controlling interests				45,341		72,301		17,516			34,989
Earnings per share attributable to the equity holders of the Controlling Company during theperiod (in Korean won):
Basic earnings per share		24	~~W~~	2,820	~~W~~	5,014	~~W~~	1,598		~~W~~	3,122
Diluted earnings per share		24		2,819		5,010		1,597			3,120

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

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Comprehensive Income

For the three-month and six-month periods ended June 30, 2025 and 2024

			Three-Month and Six-Month Periods Ended June 30
			2025						2024
(In millions of Korean won)	Notes		Three-month			Six-month			Three-month			Six-month
Profit for the period			~~W~~	733,282		~~W~~	1,300,081		~~W~~	410,541		~~W~~	803,544
Other comprehensive income (loss)
Items that will not be reclassified to profit or loss:
Remeasurements of the net defined benefit liabilities		14		4,780			918			(1,251	)		(648	)
Share of remeasurement of the net defined benefit liabilities of associates and joint<br>ventures				112			256			(601	)		(696	)
Valuation gains on equity instruments at fair value through other comprehensive income		6		153,099			146,427			117,346			230,801
Items that are or may be subsequently reclassified to profit or loss:
Valuation gains (losses) on cash flow hedges		6		(184,101	)		(170,278	)		58,683			141,436
Other comprehensive income from cash flow hedges reclassified to profit or loss				185,928			186,968			(66,223	)		(152,944	)
Share of other comprehensive income of associates and joint ventures				4,857			5,638			4,303			4,917
Exchange differences on translation of foreign operations				(38,414	)		(36,682	)		680			46,406
Other comprehensive income (loss) for the period, net of tax				126,261			133,247			112,937			269,272
Total comprehensive income for the period			~~W~~	859,543		~~W~~	1,433,328		~~W~~	523,478		~~W~~	1,072,816
Total comprehensive income for the period attributable to:
Owners of the Controlling Company			~~W~~	826,274		~~W~~	1,382,296		~~W~~	504,272		~~W~~	1,011,815
Non-controlling interests				33,269			51,032			19,206			61,001

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

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Changes in Equity

For the six-month periods ended June 30, 2025 and 2024

			Attributable to owners of the Controlling Company
(In millions of Korean won)	Notes		Share<br><br><br>capital		Sharepremium		Retainedearnings			Accumulatedothercomprehensiveincome			Othercomponentsof equity			Total			Noncontrollinginterest			Total Equity
Balance as of January 1, 2024			~~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
Comprehensive income
Profit for the period				—		—		768,555			—			—			768,555			34,989			803,544
Remeasurements of net defined benefit liabilities		14		—		—		556			—			—			556			(1,204	)		(648	)
Share of remeasurement of the net defined benefit liabilities of associates and joint<br>ventures				—		—		(510	)		—			—			(510	)		(186	)		(696	)
Share of other comprehensive income of associates and joint ventures				—		—		—			4,463			—			4,463			454			4,917
Valuation gains (losses) on cash flow hedges		6		—		—		—			(11,219	)		—			(11,219	)		(289	)		(11,508	)
Valuation gains on financial instruments at fair value through other comprehensive<br>income		6		—		—		1,414			229,077			—			230,491			310			230,801
Exchange differences on translation of foreign operations				—		—		—			19,479			—			19,479			26,927			46,406
Total comprehensive income for the period				—		—		770,015			241,800			—			1,011,815			61,001			1,072,816
Transactions with owners
Dividends paid by the Controlling Company				—		—		(482,970	)		—			—			(482,970	)		—			(482,970	)
Interim dividends paid by the Controlling Company				—		—		(122,859	)		—			—			(122,859	)		—			(122,859	)
Dividends paid to non-controlling interest of<br>subsidiaries				—		—		—			—			—			—			(20,642	)		(20,642	)
Change in Consolidation Scope				—		—		—			—			—			—			(796	)		(796	)
Change in ownership interests in subsidiaries				—		—		—			—			(15,777	)		(15,777	)		14,562			(1,215	)
Acquisition of treasury stock				—		—		—			—			(27,100	)		(27,100	)		—			(27,100	)
Disposal of treasury stock				—		—		—			—			3,760			3,760			—			3,760
Retirement of treasury stocks				—		—		(205,956	)		—			205,956			—			—			—
Others				—		—		—			—			(1,598	)		(1,598	)		1,368			(230	)
Subtotal				—		—		(811,785	)		—			165,241			(646,544	)		(5,508	)		(652,052	)
Balance as of June 30, 2024			~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	14,452,660		~~W~~	294,207		~~W~~	(637,177	)	~~W~~	17,114,447		~~W~~	1,867,454		~~W~~	18,981,901

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Changes in Equity

For the six-month periods ended June 30, 2025 and 2024

			Attributable to owners of the Controlling Company
(In millions of Korean won)	Notes		Share<br><br><br>capital		Sharepremium		Retainedearnings			Accumulatedothercomprehensiveincome			Othercomponentsof equity			Total			Noncontrollinginterest			Total Equity
Balance as of January 1, 2025			~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	13,779,776		~~W~~	63,729		~~W~~	(637,560	)	~~W~~	16,210,702		~~W~~	1,785,847		~~W~~	17,996,549
Comprehensive income
Profit for the period				—		—		1,227,780			—			—			1,227,780			72,301			1,300,081
Remeasurements of net defined benefit liabilities		14		—		—		857			—			—			857			61			918
Share of remeasurement of the net defined benefit liabilities of associates and joint<br>ventures				—		—		261			—			—			261			(5	)		256
Share of other comprehensive income of associates and joint ventures				—		—		—			5,630			—			5,630			8			5,638
Valuation gains (losses) on cash flow hedges		6		—		—		—			16,709			—			16,709			(19	)		16,690
Valuation gains on financial instruments at fair value through other comprehensive<br>income		6		—		—		1,089			145,946			—			147,035			(608	)		146,427
Exchange differences on translation of foreign operations				—		—		—			(15,976	)		—			(15,976	)		(20,706	)		(36,682	)
Total comprehensive income for the period				—		—		1,229,987			152,309			—			1,382,296			51,032			1,433,328
Transactions with owners
Dividends paid by the Controlling Company				—		—		(122,836	)		—			—			(122,836	)		—			(122,836	)
Interim dividends paid by the Controlling Company				—		—		(146,984	)		—			—			(146,984	)		—			(146,984	)
Dividends paid to non-controlling interest of<br>subsidiaries				—		—		—			—			—			—			(18,572	)		(18,572	)
Change in Consolidation Scope				—		—		—			—			—			—			(60,177	)		(60,177	)
Change in ownership interests in subsidiaries				—		—		—			—			804			804			(7,242	)		(6,438	)
Appropriation of retained earnings for treasury stock				—		—		(57	)		—			57			—			—			—
Acquisition of treasury stock				—		—		—			—			(199,374	)		(199,374	)		—			(199,374	)
Disposal of treasury stock				—		—		—			—			4,075			4,075			—			4,075
Others				—		—		—			—			(4,847	)		(4,847	)		2,394			(2,453	)
Subtotal				—		—		(269,877	)		—			(199,285	)		(469,162	)		(83,597	)		(552,759	)
Balance as of June 30, 2025			~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	14,739,886		~~W~~	216,038		~~W~~	(836,845	)	~~W~~	17,123,836		~~W~~	1,753,282		~~W~~	18,877,118

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

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Cash Flows

For the six-month periods ended June 30, 2025 and 2024

			Six-Month Periods Ended June 30
(In millions of Korean won)	Notes		2025			2024
Cash flows from operating activities
Cash generated from operations		25	~~W~~	2,793,143		~~W~~	3,428,623
Interest paid				(204,874	)		(214,215	)
Interest received				176,611			188,726
Dividends received				41,793			48,179
Income tax paid				(120,385	)		(214,987	)
Net cash inflow from operating activities				2,686,288			3,236,326
Cash flows from investing activities
Collection of loans				17,418			18,672
Disposals of financial assets at fair value through profit or loss				50,505			74,119
Disposals of financial assets at amortized cost				428,377			949,781
Disposals of financial assets at fair value through other comprehensive income				2,297			7,851
Disposals of investments in associates and joint ventures				13,205			3,745
Disposals of property, equipment and investment properties				30,534			26,696
Disposals of intangible assets				3,128			4,069
Disposals of<br>right-of-use assets				423			100
Disposals of derivatives				4,256			—
Increase in cash due to consolidation scope change				126,968			9,847
Loans granted				(33,073	)		(14,278	)
Acquisitions of financial assets at fair value through profit or loss				(39,953	)		(105,687	)
Acquisitions of financial assets at amortized cost				(532,341	)		(546,754	)
Acquisitions of financial assets at fair value through other comprehensive income				(100,000	)		(1,000	)
Acquisitions of investments in associates and joint ventures				(13,942	)		(29,580	)
Acquisitions of property and equipment and investment properties				(2,029,371	)		(1,205,286	)
Acquisitions of intangible assets				(345,943	)		(345,359	)
Acquisitions of<br>right-of-use assets				(169	)		(4,666	)
Decrease in cash due to consolidation scope change				(3	)		(10,310	)
Net cash outflow from investing activities			~~W~~	(2,417,684	)	~~W~~	(1,168,040	)

KT Corporation and Its Subsidiaries

Consolidated Interim Statements of Cash Flows

For the six-month periods ended June 30, 2025 and 2024

			Six-Month Periods Ended June 30
(In millions of Korean won)	Notes		2025			2024
Cash flows from financing activities		26
Proceeds from borrowings			~~W~~	3,651,239		~~W~~	2,060,181
Cash inflow from derivatives contracts				405			1,118
Cash inflow from transactions with non-controlling<br>shareholders				482			812
Cash inflow from other financing activities				26,583			130
Repayments of borrowings				(3,166,955	)		(2,341,632	)
Dividends paid				(288,392	)		(626,429	)
Decrease in finance lease liabilities				(202,157	)		(200,555	)
Cash outflows from derivative transactions				(3,724	)		—
Acquisition of treasury stock				(199,374	)		(27,100	)
Cash outflow from transactions with non-controlling<br>shareholders				(3,634	)		(30,738	)
Cash outflow from other financing activities				(663	)		(36	)
Net cash outflow from financing activities				(186,190	)		(1,164,249	)
Effect of exchange rate change on cash and cash equivalents				(4,684	)		3,133
Net increase (decrease) in cash and cash equivalents				77,730			907,170
Cash and cash equivalents
Beginning of the period				3,716,680			2,879,554
End of the period			~~W~~	3,794,410		~~W~~	3,786,724

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

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30 , 20 2 5 and 2024 , and December 31, 202 4

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 78 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 address of the Controlling Company’s registered office is 90, Buljeong-ro, Bundang-gu, Seongnam City, Gyeonggi Province, Korea.

On October 1, 1997, upon the announcement of Act on the Management of the Government-Invested Institutions 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 represent 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 June 30, 2025, the Korean government does not own any shares in the Controlling Company.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

1.2	Consolidated Subsidiaries
(1)	The consolidated subsidiaries as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
			Controlling Interest ^1^(%)
---	---	---	---	---	---	---	---	---	---
Subsidiary	Type of business	Location	June 30,<br>2025			December 31,<br>2024			Closing month
KT Telecop Co., Ltd.	Security service	Korea		92.7	%		92.7	%	December
KT Alpha Co., Ltd.^4^	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.^4^	Opening services of fixed line	Korea		96.1	%		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. ^4^	Payment security service for credit card, others	Korea		72.2	%		72.2	%	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
Smartro Co., Ltd.	VAN (Value Added Network) business	Korea		64.5	%		64.5	%	December
KTDS Co., Ltd. ^4^	System integration and maintenance	Korea		91.6	%		91.6	%	December
KT M&S Co., Ltd.	PCS distribution	Korea		100.0	%		100.0	%	December
KT GENIE Music Corporation<br><br><br>(formerly. GENIE Music Corporation) ^2^	Online music production and distribution	Korea		36.0	%		36.0	%	December
KT MOS Bukbu Co., Ltd. ^4^	Telecommunication facility maintenance	Korea		100.0	%		100.0	%	December
KT MOS Nambu Co., Ltd. ^4^	Telecommunication facility maintenance	Korea		98.4	%		98.4	%	December
KT Skylife Co., Ltd. ^4^	Satellite TV	Korea		50.5	%		50.5	%	December
KT ENA Co., Ltd.<br><br><br>(formerly. 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
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
kt Nasmedia, Co., Ltd.<br><br><br>(formerly. Nasmedia, Co., Ltd.) ^2,4^	Solution provider and IPTV advertisement sales business	Korea		44.1	%		44.1	%	December
KT Sports Co., Ltd.	Management of sports teams	Korea		100.0	%		100.0	%	December
KTCS Corporation ^2,4^	Database and online information provider	Korea		34.1	%		34.1	%	December
KTIS Corporation ^2,4^	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

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

			Controlling Interest ^1^(%)
Subsidiary	Type of business	Location	June 30,<br>2025			December 31,<br>2024			Closing month
Next Connect PFV	Residential building development and supply	Korea		100.0	%		100.0	%	December
KT Rwanda Networks Ltd.	Network install 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
KT Huimangjieum	Manufacturing	Korea		100.0	%		100.0	%	December
K-REALTY RENTAL HOUSING 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><br><br>maintenance	Korea		100.0	%		100.0	%	December
KT Studio Genie Co., Ltd.	Data communication service and data<br><br><br>communication construction business	Korea		90.9	%		90.9	%	December
KTHS Corporation<br><br><br>(formerly. KHS Corporation)	Operation and maintenance of facilities	Korea		100.0	%		100.0	%	December
kt HCN Co., Ltd.<br><br><br>(formerly. HCN Co., Ltd.)	Cable television service	Korea		100.0	%		100.0	%	December
kt Millie Seojae<br><br><br>(formerly. Millie Seojae) ^2^	Book contents service	Korea		38.5	%		38.7	%	December
KT ES Pte. Ltd.	Foreign investment business	Singapore		68.8	%		68.8	%	December
Epsilon Global Communications<br><br><br>PTE. Ltd.	Network service industry	Singapore		100.0	%		100.0	%	December
Epsilon Telecommunications<br><br><br>(SP) PTE. Ltd.	Fixed line telecommunication business	Singapore		100.0	%		100.0	%	December
Epsilon Telecommunications<br><br><br>(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<br><br><br>(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
Epsilon Telecommunications<br><br><br>(BG) EOOD	Employee support service	Bulgaria		100.0	%		100.0	%	December
Nasmedia-KT Alpha Future Growth<br><br><br>Strategic Investment Fund	Investment fund	Korea		100.0	%		100.0	%	December
KT Strategic Investment Fund 6	Investment fund	Korea		100.0	%		100.0	%	December
kt Altimedia Corporation<br><br><br>(formerly. Altimedia Corporation)	Software development and delivery	Korea		100.0	%		100.0	%	December
Altimidia B.V.	Software development and delivery	Netherlands		100.0	%		100.0	%	December
Altimidia Vietnam	Software development and delivery	Vietnam		100.0	%		100.0	%	December

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

			Controlling Interest ^1^(%)
Subsidiary	Type of business	Location	June 30,<br>2025			December 31,<br>2024			Closing month
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		92.6	%		92.7	%	December
PT CRANIUM ROYAL ADITAMA	Software development	Indonesia		67.0	%		67.0	%	December
Open cloud lab Co., Ltd	IT consulting service and Telecommunication<br><br><br>equipment sales	Korea		100.0	%		100.0	%	December
KT Living, Inc.	Residential building management	Korea		100.0	%		100.0	%	December
K-Realty Qualified Private Real Estate Investment Trust<br>No. 1 ^3^	Real estate management	Korea		6.5	%		6.5	%	December
AQUA RETAIL VIETNAM COMPANY LIMITED	E-voucher issuance and trading business	Vietnam		100.0	%		100.0	%	December
K-Realty Qualified Private Real Estate Investment Trust<br>No. 4	Real estate management	Korea		98.3	%		93.9	%	December
BC Strategic Investment Fund 2	Investment fund	Korea		100.0	%		100.0	%	December
K-Logis Hwaseong Inc	Residential building development and supply	Korea		80.0	%		80.0	%	December
kt netcore Co. Ltd.	Telecommunication facility maintenance and service business	Korea		100.0	%		100.0	%	December
kt p&m Co. Ltd.	Information and communications development and Electrical design corporation	Korea		100.0	%		100.0	%	December
^1^	Sum of the interests owned by the Controlling Company and subsidiaries.
---	---
^2^	Although the Controlling Company owns less than 50% of the interest in kt Nasmedia, Co., Ltd. (formerly.<br>Nasmedia, Co., Ltd.), KTCS Corporation, KTIS Corporation, kt Millie Seojae (formerly. Millie Seojae), and KT GENIE Music Corporation (formerly. GENIE Music Corporation), these entities are consolidated as the Controlling Company can exercise the<br>majority of voting rights in its decision-making process at all times, based on voting patterns at previous shareholders’ meetings.
---	---
^3^	Although the Controlling Company owns less than 50% of the interest in<br>K-Realty Qualified Private Real Estate Investment Trust No. 1, this entity is consolidated by comprehensively considering the criteria for determining control, such as ‘power’, ‘variable<br>profit’, and ‘relationship between power and variable profit’, rather than simply judging by the interests owned by the Controlling Company.
---	---
^4^	The number of treasury stock held by subsidiaries are deducted from the total number of shares when calculating<br>the controlling percentage interest.^^
---	---
(2)	Changes in Scope of Consolidation
---	---

Subsidiaries newly included and excluded in the consolidation during the six-month period ended June 30, 2025:

Changes	Location	Name of subsidiary	Reason
Excluded	Korea	KT Linkus Co., Ltd.	Merged
Excluded	Korea	KT Music Contents Fund No.2	Liquidated
Excluded	Korea	Initech Co., Ltd.	Shares disposed
Excluded	Korea	PlayD Co., Ltd.	Shares disposed
Excluded	Thailand	Nasmedia Thailand Co.Ltd.	Shares disposed

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(3)	Summarized information for consolidated subsidiaries as of June 30, 2025 and December 31, 2024 and<br>for the six-month periods ended June 30, 2025 and 2024, is as follows
(In millions of Korean won)	June 30, 2025				Six-month period ended<br>June 30,2025 ^3^
---	---	---	---	---	---	---	---	---	---
	Total<br>assets		Totalliabilities		Operatingrevenues		Profit(loss)for theperiod
KT Telecop Co., Ltd.	~~W~~	411,069		252,976		293,735		11,369
KT Alpha Co., Ltd.		454,822		168,606		196,613		24,085
KT Service Bukbu Co., Ltd.		48,780		50,012		112,545		(1,092	)
KT Service Nambu Co., Ltd.		98,752		108,690		185,107		(10,750	)
BC Card Co., Ltd. ^1^		6,827,694		4,946,974		1,781,787		94,873
H&C Network		12,225		4,653		13,837		(182	)
kt Nasmedia, Co., Ltd.<br><br><br>(formerly. Nasmedia, Co., Ltd.)		391,003		197,398		57,429		2,494
KTDS Co., Ltd.		285,048		138,104		327,172		16,937
KT M&S Co., Ltd.		266,064		186,970		364,500		11,081
KT MOS Bukbu Co., Ltd.		53,139		34,520		48,748		368
KT MOS Nambu Co., Ltd.		52,874		28,910		49,280		933
KT Skylife Co., Ltd. ^1^		981,149		411,468		490,091		12,559
KT Estate Inc. ^1^		3,076,590		1,410,660		294,380		3,029
KT GDH Co., Ltd.		7,938		1,271		1,693		131
KT Sat Co., Ltd.		754,007		98,241		93,191		15,090
KT Sports Co., Ltd.		45,250		23,263		49,436		6,129
KT M Mobile Co., Ltd.		217,478		89,358		191,733		7,521
KT Investment Co., Ltd. ^1^		84,803		56,616		2,797		539
KTCS Corporation ^1^		458,706		246,096		483,248		15,325
KTIS Corporation		471,546		255,380		309,309		10,068
Next Connect PFV		1,114,951		459,485		1,040,417		360,097
KT Japan Co., Ltd. ^1^		2,182		3,633		1,642		89
KT America, Inc.		6,308		470		3,788		152
KT Rwanda Networks Ltd. ^2^		113,237		140,052		10,409		(10,938	)
AOS Ltd. ^2^		14,218		17,663		5,792		1,236
KT Hong Kong Telecommunications Co., Ltd.		8,839		1,825		5,882		202
KT Huimangjieum ^1^		12,344		5,411		9,351		367
KT Engineering Co., Ltd.		109,233		57,813		90,953		(8,526	)
KT Studio Genie Co., Ltd. ^1^		886,831		206,064		229,742		9,879
East Telecom LLC ^1^		79,382		39,663		20,584		5,344
KT ES Pte. Ltd. ^1^		76,227		63,126		48,590		967

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	June 30, 2025				Six-month period ended<br>June 30,2025 ^3^
	Total<br>assets		Totalliabilities		Operatingrevenues		Profit(loss)for theperiod
KTP SERVICES INC.		2,215		15		—		(129	)
kt Altimedia Corporation<br><br><br>(formerly. Altimedia Corporation)^1^		42,117		10,202		16,801		193
KT RUS LLC		392		—		—		(146	)
KT DX VIETNAM COMPANY LIMITED		1,237		57		356		(134	)
KT Cloud Co., Ltd. ^1^		2,081,088		524,519		470,610		36,442
K-Realty Qualified Private Real Estate Investment Trust<br>No. 1		77,920		49,999		2,276		(618	)
AQUA RETAIL VIETNAM COMPANY LIMITED		951		79		501		(422	)
kt netcore. Co. Ltd.		154,806		111,491		269,107		(17,821	)
kt p&m Co. Ltd.		31,321		20,378		31,834		1,016
^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 of companies newly included in consolidated financial statements from the acquisition date of<br>control to the end of the reporting period is included.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024				Six-month period ended<br>June 30,2024 ^3^
	Total<br>assets		Totalliabilities		Operatingrevenues		Profit(loss)for theperiod
KT Linkus Co., Ltd.	~~W~~	54,247		55,750		39,554		(1,335	)
KT Telecop Co., Ltd.		400,437		253,509		262,403		5,911
KT Alpha Co., Ltd.		464,180		201,902		214,323		13,533
KT Service Bukbu Co., Ltd.		56,706		56,846		110,547		(5,181	)
KT Service Nambu Co., Ltd.		57,827		51,826		137,851		(7,323	)
BC Card Co., Ltd. ^1^		5,961,047		4,196,724		1,913,228		99,904
H&C Network		59,808		5,039		13,438		996
kt Nasmedia, Co., Ltd.<br><br><br>(formerly. Nasmedia, Co., Ltd.) ^1^		492,782		252,707		67,991		10,182
KTDS Co., Ltd. ^1^		388,812		179,630		336,092		23,182
KT M&S Co., Ltd.		261,539		193,526		391,267		8,650
KT MOS Bukbu Co., Ltd.		50,262		32,012		49,590		826
KT MOS Nambu Co., Ltd.		51,458		28,427		49,984		1,571
KT Skylife Co., Ltd. ^1^		1,040,188		463,594		509,026		(1,437	)
KT Estate Inc. ^1^		2,617,662		947,834		291,521		13,540
KT GDH Co., Ltd.		7,998		1,462		2,101		188
KT Sat Co., Ltd.		733,574		92,877		90,339		15,580
KT Sports Co., Ltd.		23,299		7,435		42,130		2,133
KT Music Contents Fund No. 2		5,508		1,589		65		31
KT M Mobile Co., Ltd.		195,196		74,570		167,951		5,205
KT Investment Co., Ltd. ^1^		84,369		56,721		5,932		1,336
KTCS Corporation ^1^		435,066		232,129		583,588		(902	)
KTIS Corporation		469,932		261,826		296,883		8,039
Next Connect PFV		1,429,260		1,133,891		—		(5,098	)
KT Japan Co., Ltd. ^1^		1,750		3,289		1,600		183
KT America, Inc.		6,843		614		3,798		82
KT Rwanda Networks Ltd. ^2^		131,362		341,313		10,740		(4,447	)
AOS Ltd. ^2^		14,305		19,422		5,338		769
KT Hong Kong Telecommunications Co., Ltd.		9,105		1,680		10,205		386
KT Huimangjieum ^1^		8,854		2,275		9,008		1,457
KT Engineering Co., Ltd.		183,753		123,132		130,292		(1,518	)
KT Studio Genie Co., Ltd. ^1^		880,509		212,683		205,949		(3,176	)
East Telecom LLC ^1^		75,828		40,371		17,619		4,767
KT ES Pte. Ltd. ^1^		78,800		59,114		46,484		(6,764	)

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024				Six-month period ended<br>June 30,2024 ^3^
	Total<br>assets		Totalliabilities		Operatingrevenues		Profit(loss)for theperiod
KTP SERVICES INC.		3,257		750		398		101
kt Altimedia Corporation<br><br><br>(formerly. Altimedia Corporation) ^1^		45,287		11,919		17,268		232
KT RUS LLC		420		—		—		(90	)
KT DX VIETNAM COMPANY<br><br><br>LIMITED		1,568		120		159		(142	)
KT Cloud Co., Ltd. ^1^		2,061,020		542,569		355,253		14,548
K-Realty Qualified Private Real Estate Investment Trust<br>No. 1		79,220		50,681		2,017		(755	)
AQUA RETAIL VIETNAM COMPANY LIMITED		1,903		497		211		(415	)
kt netcore Co. Ltd.		61,213		79		—		—
kt p&m Co. Ltd		10,029		96		—		—
^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 of companies newly included in consolidated financial statements from the acquisition date of<br>control to the end of the reporting period is included.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

2.	Material Accounting Policies
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 interim financial statements of the Group for the six-month period ended June 30, 2025, have been prepared in accordance with Korean IFRS 1034 Interim Financial Reporting. In order to understand the consolidated interim financial statements, the annual consolidated financial statements as of December 31, 2024 prepared in accordance with IFRS should be used together.

2.2	Changes in Accounting Policy and Disclosures
(1)	New and amended standards and interpretations adopted by the Group
---	---

The Group has applied the following standards and interpretations for the first time for their annual reporting period commencing January 1, 2025.

K-IFRS 1021 The Effects of Changes in Foreign Exchange Rates and K-IFRS 1101 First-time adoption of Korean International Financial Reporting Standards (Amendment) - Lack of Exchangeability

The amendments specify how to assess whether a currency is exchangeable, and how to determine the exchange rate when it is not.

The amendments state that a currency is exchangeable into another currency when an entity is able to obtain the other currency within a time frame that allows for a normal administrative delay and through a market or exchange mechanism in which an exchange transaction would create enforceable rights and obligations.

When a currency is not exchangeable into another currency, the spot exchange rate is estimated as of the measurement date, either by using an observable exchange rate without adjustment or by applying an alternative estimation technique.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

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

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

K-IFRS 1109 Financial Instruments and K-IFRS 1107 Financial Instruments: Disclosures – Classification and measurement requirements of financial instruments

The amendments clarify the conditions related to the discharge of a financial liability before the settlement date when settling such financial liabilities using an electronic payment system. They further specify an interest feature, a contingent feature, financial assets with non-recourse features and contractually linked instruments which should be considered in assessing whether contractual cash flows of a financial asset are consistent with a basic lending arrangement. Furthermore, the amendments include additional disclosure requirements for investments in equity instruments designated at fair value through other comprehensive income and contractual terms that could change the timing or amount of contractual cash flows. The amendments are applied retrospectively for annual reporting periods beginning on or after January 1, 2026 with earlier application permitted.

K-IFRS 1109 Financial Instruments – Derecognition of lease liabilities and Transaction price

The amendments clarify that when a lessee has determined that a lease liability has been extinguished in accordance with K-IFRS 1109, the lessee is required to recognize any resulting gain or loss in profit or loss. Additionally, the amendments have replaced ‘their transaction price (as defined in K-IFRS 1115)’ in K-IFRS 1109:5.1.3 with ‘the amount determined by applying K-IFRS 1115’ to remove an inconsistency between K-IFRS 1109 and the requirements in K-IFRS 1115.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

K-IFRS 1110 Consolidated FinancialStatements – Determination of ‘de facto agent’

The amendments have amended K-IFRS 1110:B74 to use less conclusive language and to clarify that the relationship described in K-IFRS1110:B74 is just one example of a circumstance in which judgement is required to determine whether a party is acting as a de facto agent.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

K-IFRS 1101 First-time adoption of Korean InternationalFinancial Reporting Standards – Hedging accounting by a first-time adopter

The amendments have improved the consistency of the wording of K-IFRS 1101:B6 with the requirements for hedge accounting in K-IFRS 1109 and added cross-references to K-IFRS 1109:6.4.1 to improve the understandability of K-IFRS 1101.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

- K-IFRS 1107 Financial Instruments: Disclosures – Gain or loss on derecognition

The amendments have updated the obsolete cross-reference in K-IFRS 1107:B38 and aligned the wording of this paragraph with the terms used in K-IFRS.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

K-IFRS 1007 Statement of Cash Flows: Cost method

The amendments have replaced the term ‘cost method’ with ‘at cost’ in K-IFRS 1007:37.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

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

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

2.3	Accounting Policies

The material accounting policies and methods of computation used in the preparation of the consolidated interim financial statements are consistent with those of the consolidated financial statements for the year ended December 31, 2024, except for the changes resulting from the application of amendments and enactments of standards described in Note 2.2 (1) and as detailed below.

2.3.1	Income Tax Expense

Income tax expense for the interim period is recognized based on management’s best estimate of the weighted average annual income tax rate expected for the full financial year. The estimated average annual effective income tax rate is applied to the pre-tax income of the interim period.

3.	Critical Accounting Estimates and Assumptions

The preparation of financial statements requires the Group to make estimates and assumptions about 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 reasonable expectations of future events under the given circumstances. As the resulting accounting estimates will, by definition, rarely equal the actual results, they involve a significant risk of resulting in material adjustments.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

4.	Financial Instruments by Category

Financial instruments by category as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Financial assets	Financial assetsat amortizedcost		Financialassets atFVTPL		Financialassets atFVOCI		Derivatives<br>used forhedging		Total
Cash and cash equivalents	~~W~~	3,794,410		—		—		—		3,794,410
Trade and other receivables		8,124,193		—		114,094		—		8,238,287
Other financial assets		948,201		990,017		1,965,219		226,159		4,129,596
(In millions of Korean won)	June 30, 2025
Financial liabilities	Financialliabilities atamortized cost		Financialliabilities atFVTPL		Derivativesused forhedging		Others		Total
Trade and other payables ^1^	~~W~~	6,949,073		—		—		—		6,949,073
Borrowings		10,750,186		—		—		—		10,750,186
Other financial liabilities		956,083		117,822		9,304		—		1,083,209
Lease liabilities		—		—		—		1,006,813		1,006,813
^1^	Amounts related to employee benefit plans are excluded in Trade and other payables.
---	---
(In millions of Korean won)	December 31, 2024
---	---	---	---	---	---	---	---	---	---	---
Financial assets	Financial assets<br>at amortized<br>cost		Financialassets atFVTPL		Financialassets atFVOCI		Derivatives<br>used forhedging		Total
Cash and cash equivalents	~~W~~	3,716,680		—		—		—		3,716,680
Trade and other receivables		7,573,409		—		114,774		—		7,688,183
Other financial assets		962,653		1,029,926		1,665,368		445,471		4,103,418
(In millions of Korean won)	December 31, 2024
Financial liabilities	Financialliabilities atamortized cost		Financialliabilities atFVTPL		Derivativesused forhedging		Others		Total
Trade and other payables ^1^	~~W~~	7,214,174		—		—		—		7,214,174
Borrowings		10,520,690		—		—		—		10,520,690
Other financial liabilities		942,135		132,011		3		—		1,074,149
Lease liabilities		—		—		—		1,059,453		1,059,453
^1^	Amounts related to employee benefit plans are excluded in Trade and other payables.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

5.	Trade and Other Receivables
(1)	Trade and other receivables as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
(In millions of Korean won)	June 30, 2025
---	---	---	---	---	---	---	---	---	---	---
	Total amounts		Provision forimpairment			Present valuediscount			Carrying<br>amount
Current assets
Trade receivables	~~W~~	3,440,688		(387,543	)		(8,107	)		3,045,038
Other receivables		3,499,323		(101,414	)		(2,400	)		3,395,509
Total	~~W~~	6,940,011		(488,957	)		(10,507	)		6,440,547
Non-current assets
Trade receivables	~~W~~	246,147		(1,295	)		(12,280	)		232,572
Other receivables		1,670,799		(95,288	)		(10,343	)		1,565,168
Total	~~W~~	1,916,946		(96,583	)		(22,623	)		1,797,740
(In millions of Korean won)	December 31, 2024
---	---	---	---	---	---	---	---	---	---	---
	Total amounts		Provision forimpairment			Present valuediscount			Carrying<br>amount
Current assets
Trade receivables	~~W~~	3,309,177		(378,327	)		(9,011	)		2,921,839
Other receivables		3,335,066		(107,653	)		(1,796	)		3,225,617
Total	~~W~~	6,644,243		(485,980	)		(10,807	)		6,147,456
Non-current assets
Trade receivables	~~W~~	260,154		(1,299	)		(14,977	)		243,878
Other receivables		1,405,923		(96,941	)		(12,133	)		1,296,849
Total	~~W~~	1,666,077		(98,240	)		(27,110	)		1,540,727

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(2)	Details of other receivables as of June 30, 2025 and December 31, 2024, are as follows:<br>
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Loans	~~W~~	58,836			42,413
Receivables ^1^		2,984,849			2,913,728
Accrued income		61,069			40,950
Refundable deposits		247,671			264,054
Loans receivable		1,550,725			1,209,887
Finance lease receivables		188,755			202,372
Others		65,474			53,656
Less: Provision for impairment		(196,702	)		(204,594	)
Total	~~W~~	4,960,677			4,522,466
^1^	As of June 30, 2025, credit sales asset of ~~W~~ 2,224,549 million (December 31, 2024:<br>~~W~~ 1,970,895 million) held by BC Card Co., Ltd. are included.
---	---
(3)	The maximum exposure to credit risks for trade and other receivables is the carrying amount of each class of<br>receivables mentioned above as of June 30, 2025.
---	---
(4)	The Group classifies a certain portion of trade receivables as financial assets at fair value through other<br>comprehensive income, based on business model for managing the asset and the cash flow characteristics of the contract.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

6.	Other Financial Assets and Liabilities
(1)	Details of other financial assets and liabilities as of June 30, 2025 and December 31, 2024, are as<br>follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Other financial assets
Financial assets at amortized cost ^1^	~~W~~	948,201			962,653
Financial assets at FVTPL ^1,2^		990,017			1,029,926
Financial assets at FVOCI		1,965,219			1,665,368
Derivatives used for hedging		226,159			445,471
Less: Non-current		(2,905,193	)		(2,759,170	)
Current	~~W~~	1,224,403			1,344,248
Other financial liabilities
Financial liabilities at amortized cost<br>^3,4^	~~W~~	956,083			942,135
Financial liabilities at FVTPL		117,822			132,011
Derivatives used for hedging		9,304			3
Less: Non-current		(739,295	)		(722,517	)
Current	~~W~~	343,914			351,632
^1^	As of June 30, 2025, the Group’s financial instruments amount to ~~W~~<br>105,816 million (December 31, 2024: ~~W~~ 97,913 million) and consist of checking account deposits, time deposits, and others which are subject to withdrawal restrictions.
---	---
^2^	As of June 30, 2025, the Group provided investments in Korea Software Financial Cooperative and others<br>amounting to ~~W~~ 10,539 million (December 31, 2024: ~~W~~ 10,511 million) as a collateral in exchange for the payment guarantee provided by the Korea Software Financial Cooperative and others.<br>
---	---
^3^	The amount includes liabilities related to the obligation to acquire additional shares in Epsilon Global<br>Communications Pte. Ltd. and KT Cloud Co., Ltd. (Note 15).
---	---
^4^	The amount includes liabilities convertible preferred Stock issued by KT Cloud Co., Ltd. (Note 15).<br>
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(2)	Financial Assets at fair value through profit or loss
1)	Details of financial assets at fair value through profit or loss as of June 30, 2025 and December 31,<br>2024, are as follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Equity instruments (Listed)	~~W~~	4,767			5,620
Equity instruments (Unlisted)		46,143			47,227
Debt securities		939,107			971,805
Derivatives held for trading		—			5,274
Total		990,017			1,029,926
Less: Non-current		(783,927	)		(826,708	)
Current	~~W~~	206,090			203,218
2)	The maximum exposure to credit risks for debt instruments of financial assets at fair value through profit or<br>loss is the carrying amount of each class of debt instruments above as of June 30, 2025.
---	---
(3)	Financial Assets at fair value through other comprehensive income
---	---
1)	Details of financial assets at fair value through other comprehensive income as of June 30, 2025 and<br>December 31, 2024, are as follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Equity instruments (Listed)	~~W~~	1,519,604			1,317,458
Equity instruments (Unlisted)		439,316			341,753
Debt securities		6,299			6,157
Total		1,965,219			1,665,368
Less: Non-current		(1,965,219	)		(1,665,368	)
Current	~~W~~	—			—
2)	Upon disposal of these equity investments, any balance within the accumulated other comprehensive income is<br>reclassified not 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.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(4)	Derivatives used for Hedging
1)	Details of valuation of derivatives used for hedging as of June 30, 2025 and December 31, 2024, are<br>as follows:
---	---
(In millions of Korean won)	June 30, 2025						December 31, 2024
---	---	---	---	---	---	---	---	---	---	---	---
	Assets			Liabilities			Assets			Liabilities
Interest rate swap	~~W~~	217			10			352			3
Currency swap ^1^		225,942			9,294			445,119			—
Total		226,159			9,304			445,471			3
Less: Non-current		(136,823	)		(9,304	)		(261,719	)		—
Current	~~W~~	89,336			—			183,752			3
^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 within 12 months.

2)	Details of valuation gains and losses on the derivative instruments for the<br>six-month periods ended June 30, 2025 and 2024, are as follows:
(In millions of Korean won)
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	2025							2024
Type of transaction	Valuation<br>gain		Valuationloss		Othercomprehensiveloss^1^			Valuationgain		Valuationloss		Othercomprehensiveloss^1^
Interest rate swap	~~W~~	2		103		(82	)		31		—		324
Currency swap		2,408		252,754		22,239			202,420		354		(15,642	)
Total	~~W~~	2,410		252,857		22,157			202,451		354		(15,318	)
^1^	The amounts are before adjustments for deferred income tax and allocations to<br>non-controlling interests and have been directly reflected in equity.
---	---
3)	The effective portion recognized in profit or loss related to cash flow hedges amounts to valuation losses of<br>~~W~~ 229,194 million as other comprehensive income for the year ended June 30, 2025 (for the six-month period ended June 30, 2024: valuation gains of ~~W~~ 189,126 million). The ineffective portion<br>recognized in profit or loss related to cash flow hedges amounts to valuation gains of ~~W~~ 434 million as current profit or loss for the year ended June 30, 2025 (for the six-month period ended June 30, 2024:<br>~~W~~ 1,302 million). In addition, the valuation loss reclassified from other comprehensive income to profit or loss amounts to ~~W~~ 251,351 million for the year ended June 30, 2025 (for the six-month period<br>ended June 30, 2024: valuation gains of ~~W~~ 204,444 million).
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(5)	Financial Liabilities at fair value through profit or loss
1)	Details of financial liabilities at fair value through profit or loss as of June 30, 2025 and<br>December 31, 2024, are as follows:
---	---
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Derivatives held for trading ^1^	~~W~~	117,822		132,011
^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 six-month period ended June 30, 2025. 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<br>exercise the Drag-Along right to the Group, and the 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<br>terms agreed upon by financial investors. (Note 15).
---	---
2)	The valuation gain and loss on financial liabilities at fair value through profit or loss for the six-month periods ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Valuation<br>gain		Valuation<br>loss		Valuation<br>gain		Valuation<br>loss
Derivatives liabilities held for trading	~~W~~	17,254		3,447		22,777		—
7.	Inventories
---	---

Inventories as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)
	June 30, 2025							December 31, 2024
	Acquisitioncost		Valuationallowance			Carrying<br>amount		Acquisitioncost		Valuationallowance			Carrying<br>amount
Merchandise	~~W~~	474,585		(42,310	)		432,275		1,003,127		(99,517	)		903,610
Others		12,077		(437	)		11,640		37,123		(524	)		36,599
Total	~~W~~	486,662		(42,747	)		443,915		1,040,250		(100,041	)		940,209

Cost of inventories recognized as expenses for the six-month period ended June 30, 2025 amounts to ~~W~~ 2,120,945 million (for the six-month period ended June 30, 2024: ~~W~~ 1,687,715 million) and reversal inventory valuation loss amounts to ~~W~~ 57,294 million for the six-month period ended June 30, 2025 (for the six-month period ended June 30, 2024: reversal valuation loss on inventory of ~~W~~ 23,249 million).

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

8.	Other Assets and Liabilities

Other assets and liabilities as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Other assets
Advance payments	~~W~~	216,109		217,679
Prepaid expenses		306,259		170,544
Contract cost		1,935,495		1,738,164
Contract assets		890,334		800,806
Others		20,399		18,929
Less: Non-current		(888,341	)	(843,991	)
Current	~~W~~	2,480,255		2,102,131
Other liabilities
Advances received ^1^	~~W~~	403,620		1,151,499
Withholdings		137,947		154,355
Unearned revenue ^1^		51,068		38,327
Lease liabilities		1,006,813		1,059,453
Contract liabilities		366,856		273,320
Others		29,291		31,203
Less: Non-current		(727,067	)	(782,520	)
Current	~~W~~	1,268,528		1,925,637
^1^	The amounts include adjustments arising from adoption of Korean IFRS 1115 Revenue from Contracts withCustomers (Note 19).
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

9.	Property and Equipment, Investment Properties, and Intangible Assets
(1)	Changes in property and equipment for six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning, net	~~W~~	14,825,814			14,872,079
Acquisition and capital expenditure		1,014,710			1,233,426
Disposal and termination		(46,182	)		(38,785	)
Depreciation		(1,415,575	)		(1,399,430	)
Transfer to investment properties		(11,028	)		(43,710	)
Changes in consolidation scope		(3,644	)		(1,326	)
Others ^1^		(137,726	)		(30,541	)
Ending, net	~~W~~	14,226,369			14,591,713
^1^	Amounts include transfers to intangible assets.
---	---
(2)	Changes in investment properties for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning, net	~~W~~	2,299,616			2,198,135
Acquisition and capital expenditure		643,954			37,403
Disposal		—			(1,772	)
Depreciation		(41,231	)		(26,537	)
Transfer from property and equipment		11,028			43,710
Changes in consolidation scope		(3,401	)		—
Others		7,623			(865	)
Ending, net	~~W~~	2,917,589			2,250,074
(3)	As of June 30, 2025, the Group (Lessor) has entered into a<br>non-cancellable operating lease contract for real estate. The future minimum lease payments under this contract amount to ~~W~~ 116,476 million for one year or less, ~~W~~<br>113,549 million for more than one year and less than five years, ~~W~~ 9,196 million for over five years, and ~~W~~ 239,221 million in total.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(4)	Changes in intangible assets for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning, net	~~W~~	1,862,740			2,533,861
Acquisition and capital expenditure<br>^1^		191,444			77,106
Disposal and termination		(6,792	)		(11,797	)
Amortization		(303,639	)		(335,071	)
Impairment		(821	)		(857	)
Changes in consolidation scope		(34,653	)		(9,371	)
Others		(9,753	)		12,445
Ending, net	~~W~~	1,698,526			2,266,316
^1^	Amounts include transfers from property and equipment.
---	---
(5)	The carrying amount of intangible assets with indefinite useful lives, including membership rights (except for<br>goodwill), that are not subject to amortization, is ~~W~~ 203,250 million as of June 30, 2025 (December 31, 2024: ~~W~~ 203,227 million).
---	---
(6)	Goodwill is allocated to the Group’s cash-generating units, which are identified by operating segments.<br>As of June 30, 2025, the 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
KT GENIE Music Corporation(formerly. GENIE Music Corporation)		38,258
kt Millie Seojae(formerly. Millie Seojae)		54,725
KT Telecop Co., Ltd.		15,418
KT MOS Bukbu Co., Ltd. and others		32,589
Total	~~W~~	247,281

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 value in use was calculated using pre-tax cash flow estimates based on financial budgets, 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 has determined revenue growth 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 associated with related operations.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

10.	Investments in Associates and Joint Ventures
(1)	Details of associates as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
	Percentage of ownership (%)
---	---	---	---	---	---	---	---	---	---	---
	June 30,<br>2025			December 31,<br>2024			Location		Closing month
KIF Investment Fund		33.3	%		33.3	%		Korea		December
K Bank Inc.		33.7	%		33.7	%		Korea		December
HD 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 Professional Investors Private Investment Real Estate Investment LLC No 395		35.3	%		35.3	%		Korea		December
^1^	Although the Group holds less than 20% interest in ordinary share as of June 30, 2025, these entities are<br>included in investments in associates as the Group exerts significant influence over operational and financial policies.
---	---
(2)	Changes in investments in associates and joint ventures for the<br>six-month period ended June 30, 2025 and 2024, are as follows:
---	---
	2025
---	---	---	---	---	---	---	---	---	---	---	---	---	---
(In millions of Korean won)	Beginning		Acquisition<br>(Disposal)			Share of netprofit (loss) fromassociates andjoint ventures ^1^			Others			Ending
KIF Investment Fund	~~W~~	191,125		—			779			(1,366	)		190,538
K Bank Inc.		917,641		—			24,163			550			942,354
HD Hyundai Robotics Co., Ltd.		45,830		—			(720	)		1,057			46,167
Megazone Cloud Corporation		130,773		—			(1,169	)		1,261			130,865
IGIS No. 468-1 General Private Real Estate Investment<br>Company		23,374		—			(80	)		—			23,294
KT-DSC Creative Economy Youth Start-up Investment Fund		15,951		(650	)		1,165			(700	)		15,766
IGIS Professional Investors Private Investment Real Estate Investment LLC No 395		9,727		—			(945	)		—			8,782
Others^1^		227,811		8,278			(10,589	)		(336	)		225,164
Total	~~W~~	1,562,232		7,628			12,604			466			1,582,930

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

	2024
(In millions of Korean won)	Beginning		Acquisition<br>(Disposal)			Share of netprofit (loss) fromassociates andjoint ventures ^1^			Others			Ending
KIF Investment Fund	~~W~~	177,054		—			579			983			178,616
K Bank Inc.		872,881		—			28,235			1,762			902,878
HD Hyundai Robotics Co., Ltd.		47,734		—			717			(646	)		47,805
Megazone Cloud Corporation		131,694		—			(1,684	)		1,218			131,228
IGIS No. 468-1 General Private Real Estate Investment<br>Company		23,484		—			(53	)		—			23,431
KT-DSC Creative Economy Youth Start-up Investment Fund		25,117		(275	)		(5,817	)		(1,505	)		17,520
IGIS Professional Investors Private Investment Real Estate Investment LLC No 395		11,942		—			(1,208	)		—			10,734
LS Marine Solution Co., Ltd.		23,492		—			237			(291	)		23,438
Others^1^		243,491		27,186			(13,854	)		273			257,096
Total	~~W~~	1,556,889		26,911			7,152			1,794			1,592,746
^1^	KT Investment Co., Ltd., a subsidiary of the Group, recognized net profit (loss) in the investments in<br>associates as operating income. Net loss recognized as operating income for the six-months period ended June 30, 2025 amount to ~~W~~ 201 million<br>(six-month period ended June 30, 2024: net profit of ~~W~~ 85 million).
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(3)	Summarized statements of financial position of the major associates and joint ventures as of June 30, 2025<br>and December 31, 2024 and summarized statements of profit or loss for the six-month period ended June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	June 30, 2025
---	---	---	---	---	---	---	---	---	---
	Assets		Liabilities		Operatingrevenue		Profit(loss)<br>for the period
KIF Investment Fund	~~W~~	574,668		3,054		12,882		2,338
K Bank Inc.		29,529,676		27,349,662		676,537		82,011
HD Hyundai Robotics Co., Ltd.		359,220		105,080		116,549		(7,230	)
Megazone Cloud Corporation		1,261,732		666,194		886,484		(7,675	)
IGIS No. 468-1 General Private Real Estate Investment<br>Company		52,189		11		—		(181	)
KT-DSC Creative Economy Youth Start-up Investment Fund		55,596		414		5,264		2,414
IGIS Professional Investors Private Investment Real Estate Investment LLC No 395		195,798		140,237		—		(211	)
(In millions of Korean won)	December 31, 2024				June 30, 2024
---	---	---	---	---	---	---	---	---	---
	Assets		Liabilities		Operatingrevenue		Profit(loss)<br>for the period
KIF Investment Fund	~~W~~	573,376		—		14,380		1,736
K Bank Inc		31,191,682		29,187,152		569,666		85,989
HD Hyundai Robotics Co., Ltd.		356,541		105,722		111,536		4,175
Megazone Cloud Corporation		1,456,061		860,488		839,184		(6,038	)
IGIS No. 468-1 General Private Real Estate Investment<br>Company		52,370		11		3		(118	)
KT-DSC Creative Economy Youth Start-up Investment Fund		56,231		404		3,994		(20,358	)
IGIS Professional Investors Private Investment Real Estate Investment LLC No 395		175,328		133,665		—		(172	)
(4)	Due to discontinuance of equity method of accounting, the Group has not recognized loss from associates and<br>joint ventures of ~~W~~ 3,761 million for the six-month period June 30, 2025 (six-month period ended June 30, 2024: ~~W~~<br>542 million). The unrecognized accumulated comprehensive loss of associates and joint ventures as of June 30, 2025 is ~~W~~ 11,026 million (December 31, 2024: ~~W~~ 7,942 million).
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

11.	Trade and Other Payables
(1)	Details of trade and other payables as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Current liabilities
Trade payables	~~W~~	1,082,903		1,036,707
Other payables		5,994,838		6,358,084
Total	~~W~~	7,077,741		7,394,791
Non-current liabilities
Trade payables		791		1,035
Other payables	~~W~~	382,866		577,374
Total	~~W~~	383,657		578,409
(2)	Details of other payables as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Non-trade payables ^1^	~~W~~	3,730,471			4,578,424
Accrued expenses		1,513,032			1,293,627
Operating deposits		881,412			833,482
Others		252,789			229,925
Less: non-current		(382,866	)		(577,374	)
Current	~~W~~	5,994,838			6,358,084
^1^	As of June 30, 2025, credit sale liabilities amounting to ~~W~~ 1,785,860 million<br>(December 31, 2024: ~~W~~ 1,612,495 million) held by BC Card Co., Ltd. (a subsidiary of the Group) are included
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

12.	Borrowings
(1)	Details of borrowings as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
1)	Debentures.
---	---
(In millions of Korean won and foreign currencies in thousands)					June 30, 2025			December 31, 2024
---	---	---	---	---	---	---	---	---	---	---
Type	Maturity	Annual interestrates			Foreigncurrency			Foreigncurrency
MTNP notes ^1^	Sep. 07, 2034		6.500	%		100,000	135,640		100,000	147,000
MTNP notes	Jul. 18, 2026		2.500	%		400,000	542,560		400,000	588,000
MTNP notes	Sep. 01, 2025		1.000	%		400,000	542,560		400,000	588,000
MTNP notes	Jan. 21, 2027		1.375	%		300,000	406,920		300,000	441,000
MTNP notes	Aug. 08, 2025		4.000	%		500,000	678,200		500,000	735,000
MTNP notes	Feb. 02, 2028		4.125	%		500,000	678,200		500,000	735,000
MTNP notes	Mar. 05, 2027		1.217	%		23,300,000	218,782		—	—
MTNP notes	Mar. 07, 2028		1.367	%		6,700,000	62,912		—	—
The 183-3rd Public bond	Dec. 22, 2031		4.270	%		—	160,000		—	160,000
The 184-3rd Public bond	Apr. 10, 2033		3.170	%		—	100,000		—	100,000
The 186-4th Public bond	Jun. 26, 2034		3.695	%		—	100,000		—	100,000
The 187-4th Public bond	Sep. 02, 2034		3.546	%		—	100,000		—	100,000
The 188-2nd Public bond	Jan. 29, 2025		—			—	—		—	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 190-3rd 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 191-3rd 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 192-3rd 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 193-2nd Public bond	Jun. 17, 2025		—			—	—		—	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 194-2nd Public bond	Jan. 27, 2026		1.452	%		—	140,000		—	140,000
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 195-2nd 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		—			—	—		—	270,000

All values are in US Dollars.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won and foreign currencies in thousands)					June 30, 2025				December 31, 2024
Type	Maturity	Annual interestrates			Foreigncurrency		Koreanwon		Foreigncurrency		Koreanwon
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		—			—		—		—		280,000
The 197-2nd Public bond	Jun. 29, 2027		4.188	%		—		120,000		—		120,000
The 198-1st Public bond	Jan. 10, 2025		—			—		—		—		70,000
The 198-2nd Public bond	Jan. 12, 2026		3.869	%		—		150,000		—		150,000
The 198-3rd Public bond	Jan. 12, 2028		3.971	%		—		80,000		—		80,000
The 199-1st Public bond	Jul. 11, 2025		4.028	%		—		85,000		—		85,000
The 199-2nd Public bond	Jul. 10, 2026		4.146	%		—		160,000		—		160,000
The 199-3rd Public bond	Jul. 12, 2028		4.221	%		—		155,000		—		155,000
The 200-1st Public bond	Feb. 27, 2026		3.552	%		—		120,000		—		120,000
The 200-2nd Public bond	Feb. 26, 2027		3.608	%		—		200,000		—		200,000
The 200-3rd Public bond	Feb. 27, 2029		3.548	%		—		80,000		—		80,000
The 201-1st Public bond	Dec. 02, 2027		2.899	%		—		130,000		—		130,000
The 201-2nd Public bond	Dec. 02, 2029		2.918	%		—		70,000		—		70,000
The 201-3rd Public bond	Dec. 02, 2034		3.057	%		—		100,000		—		100,000
The 18-2nd unsecured bond	Jul. 02, 2026		2.224	%		—		50,000		—		50,000
The 19-1st unsecured bond	Jun. 12, 2027		3.691	%		—		50,000		—		50,000
The 19-2nd unsecured bond	Jun. 12, 2029		3.783	%		—		50,000		—		50,000
The 149-2nd<br>Won-denominated unsecured bond	Mar. 10, 2026		1.756	%		—		30,000		—		30,000
The 152-2nd<br>Won-denominated unsecured bond	Aug. 28, 2026		1.982	%		—		20,000		—		20,000
The 154th Won-denominated unsecured bond	Jan. 23, 2025		—			—		—		—		40,000
The 155-3rd<br>Won-denominated unsecured bond	Feb. 28, 2025		—			—		—		—		20,000
The 156-1st<br>Won-denominated unsecured bond^^	Mar. 25, 2025		—			—		—		—		60,000
The 156-2nd<br>Won-denominated unsecured bond ^2^	Mar. 25, 2032		10Y CMS+0.965	%		—		40,000		—		40,000
The 158th Won-denominated unsecured bond	Jan. 27, 2025		—			—		—		—		50,000

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won and foreign currencies in thousands)					June 30, 2025				December 31, 2024
Type	Maturity	Annual interestrates			Foreigncurrency		Koreanwon		Foreigncurrency		Koreanwon
The 159-2nd<br>Won-denominated unsecured bond	Aug. 11, 2027		4.505	%		—		30,000		—		30,000
The 160-3rd<br>Won-denominated unsecured bond	Dec. 12, 2025		5.769	%		—		30,000		—		30,000
The 161-3rd<br>Won-denominated unsecured bond	Jun. 20, 2025		—			—		—		—		30,000
The 161-4th<br>Won-denominated unsecured bond	Dec. 22, 2025		5.615	%		—		10,000		—		10,000
The 163-1st<br>Won-denominated unsecured bond	Feb. 20, 2026		4.059	%		—		20,000		—		20,000
The 163-2nd<br>Won-denominated unsecured bond	Feb. 22, 2028		4.311	%		—		80,000		—		80,000
The 164-3rd<br>Won-denominated unsecured bond	Apr. 14, 2028		4.220	%		—		30,000		—		30,000
The 165-1st<br>Won-denominated unsecured bond	May. 09, 2025		—			—		—		—		30,000
The 165-2nd<br>Won-denominated unsecured bond	Nov. 09, 2026		3.932	%		—		10,000		—		10,000
The 165-3rd<br>Won-denominated unsecured bond	May. 07, 2027		3.972	%		—		30,000		—		30,000
The 166-2nd<br>Won-denominated unsecured bond	Apr. 22, 2025		—			—		—		—		40,000
The 166-3rd<br>Won-denominated unsecured bond	May. 21, 2025		—			—		—		—		10,000
The 166-4th<br>Won-denominated unsecured bond	May. 22, 2025		—			—		—		—		40,000
The 167-2nd<br>Won-denominated unsecured bond	Jan. 22, 2025		—			—		—		—		50,000
The 167-3rd<br>Won-denominated unsecured bond	Feb. 21, 2025		—			—		—		—		10,000
The 167-4th<br>Won-denominated unsecured bond	Dec. 22, 2025		3.858	%		—		10,000		—		10,000
The 168-1st<br>Won-denominated unsecured bond	Jun. 05, 2025		—			—		—		—		40,000

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won and foreign currencies in thousands)					June 30, 2025				December 31, 2024
Type	Maturity	Annual interestrates			Foreigncurrency		Koreanwon		Foreigncurrency		Koreanwon
The 168-2nd<br>Won-denominated unsecured bond	Aug. 06, 2025		3.703	%		—		70,000		—		70,000
The 168-3rd<br>Won-denominated unsecured bond	Oct. 02, 2025		3.724	%		—		40,000		—		40,000
The 169th Won-denominated unsecured bond	Apr. 04, 2025		—			—		—		—		50,000
The 170th Won-denominated unsecured bond	Jun. 12, 2026		3.688	%		—		50,000		—		50,000
The 171-1st<br>Won-denominated unsecured bond	Jun. 11, 2027		3.330	%		—		20,000		—		20,000
The 171-2nd<br>Won-denominated unsecured bond	Aug. 12, 2027		3.329	%		—		60,000		—		60,000
The 172-1st<br>Won-denominated unsecured bond	Mar. 06, 2026		3.514	%		—		10,000		—		10,000
The 172-2nd<br>Won-denominated unsecured bond	Mar. 09, 2026		3.514	%		—		40,000		—		40,000
The 172-3rd<br>Won-denominated unsecured bond	Sep. 09, 2026		3.474	%		—		30,000		—		30,000
The 173-1st<br>Won-denominated unsecured bond	Sep. 23, 2027		3.291	%		—		60,000		—		60,000
The 173-2nd<br>Won-denominated unsecured bond	Sep. 24, 2027		3.291	%		—		50,000		—		50,000
The 173-3rd<br>Won-denominated unsecured bond	Oct. 22, 2027		3.292	%		—		40,000		—		40,000
The 174th^^Won-denominated unsecured bond	Nov. 10, 2025		3.339	%		—		60,000		—		60,000
The 175-1st<br>Won-denominated unsecured bond	Dec. 10, 2025		3.169	%		—		50,000		—		50,000
The 175-2nd<br>Won-denominated unsecured bond	Dec. 10, 2027		3.101	%		—		50,000		—		50,000
The 176th^^Won-denominated unsecured bond	Dec. 18, 2026		3.134	%		—		70,000		—		70,000
The 177-1st<br>Won-denominated unsecured bond	Jul. 09, 2027		3.097	%		—		70,000		—		—

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won and foreign currencies in thousands)					June 30, 2025				December 31, 2024
Type	Maturity	Annual interestrates			Foreigncurrency		Koreanwon		Foreigncurrency		Koreanwon
The 177-2nd<br>Won-denominated unsecured bond	Jul. 12, 2027		3.097	%		—		70,000		—		—
The 177-3rd<br>Won-denominated unsecured bond	Jan. 09, 2029		3.115	%		—		30,000		—		—
The 177-4th<br>Won-denominated unsecured bond	Jan. 09, 2030		3.140	%		—		40,000		—		—
The 178-1st<br>Won-denominated unsecured bond	Feb. 28, 2029		3.026	%		—		50,000		—		—
The 178-2nd<br>Won-denominated unsecured bond	Feb. 28, 2030		3.087	%		—		30,000		—		—
The 179-1st<br>Won-denominated unsecured bond	Sep. 23, 2027		3.013	%		—		10,000		—		—
The 179-2nd<br>Won-denominated unsecured bond	Sep. 24, 2027		3.013	%		—		40,000		—		—
The 179-3rd<br>Won-denominated unsecured bond	Mar. 24, 2028		3.038	%		—		50,000		—		—
The 179-4th<br>Won-denominated unsecured bond	Mar. 25, 2030		3.126	%		—		20,000		—		—
The 179-5th<br>Won-denominated unsecured bond	Sep. 25, 2030		3.178	%		—		20,000		—		—
The 180-1st<br>Won-denominated unsecured bond	Apr. 03, 2028		2.989	%		—		90,000		—		—
The 180-2nd<br>Won-denominated unsecured bond	Apr. 04, 2028		2.989	%		—		70,000		—		—
The 180-3rd<br>Won-denominated unsecured bond	Apr. 04, 2029		3.026	%		—		40,000		—		—
The 181-1st<br>Won-denominated unsecured bond	Nov. 22, 2027		2.730	%		—		80,000		—		—
The 181-2nd<br>Won-denominated unsecured bond	May. 22, 2028		2.781	%		—		100,000		—		—
The 181-3rd<br>Won-denominated unsecured bond	May. 22, 2029		2.851	%		—		40,000		—		—
The 182-1st<br>Won-denominated unsecured bond	Feb. 11, 2028		2.776	%		—		30,000		—		—

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won and foreign currencies in thousands)					June 30, 2025					December 31, 2024
Type	Maturity	Annual interestrates			Foreigncurrency		Koreanwon			Foreigncurrency		Koreanwon
The 182-2nd<br>Won-denominated unsecured bond	Jun. 13, 2028		2.822	%		—		70,000			—		—
Subtotal								8,735,774					9,154,000
Less: Current portion								(2,314,751	)				(3,073,474	)
Discount on bonds								(18,336	)				(24,177	)
Total							~~W~~	6,402,687				~~W~~	6,056,349
^1^	As of June 30, 2025, 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 on the Singapore Stock Exchange, which allowed issuance of notes of up to USD 2,000 million. However, the MTNP was terminated in 2007.<br>
---	---
^2^	The CMS (10Y) is approximately 2.623% as of June 30, 2025.
---	---
2)	Convertible bonds
---	---
(In millions of Korean won)
---	---	---	---	---	---	---	---	---	---	---	---
Type	Issuance Date		Maturity		Annual interestRate		June 30, 2025		December 31, 2024
The 1st CB (Private) ^1^		Jun. 5, 2020		Jun. 5, 2025		—	~~W~~	—		8,000
Redemption premium								—		2,267
Conversion rights adjustment								—		(580	)
Subtotal								—		9,687
Less: Current portion								—		(9,687	)
Total							~~W~~	—		—
^1^	Convertible bond was fully redeemed for the six-month period ended June 30, 2025.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

3)	Borrowings
a.	Short-term borrowings
---	---
(In millions of Korean won)
---	---	---	---	---	---	---	---	---	---
			June 30, 2025			December 31, 2024
Type	Financial institution	Annual interest rates	Foreigncurrency			Foreigncurrency		Korean<br>won
Operational	Shinhan Bank ^1^
		5.430%		—	5,000		—	~~W~~	5,000
		FB(6M)+2.850%~FB(6M)+2.860%		—	8,990		—		8,990
		Term SOFR(3M)+1.580%		35,000	47,474		—		—
		—		—	—		—		87,000
	Woori Bank ^1^	4.230%		—	20,000		—		20,000
		FB(1Y)+0.730%		—	70,000		—		70,000
		—		—	—		—		51,950
	Korea Development Bank ^1^	3.690%~4.680%		—	21,000		—		—
		KDB Bond(1Y)+2.640%		—	8,000		—		8,000
		—		—	—		—		27,000
	Industrial Bank of Korea	4.340%		—	6,000		—		6,000
	Hana Bank ^1^	FB(6M)+1.988%		—	5,000		—		—
	KB SECURITIES	3.630%		—	120,000		—		120,000
	NongHyup Bank^1^	MOR(6M)+1.770%		—	1,000		—		—
		—		—	—		—		14,200
	Standard Chartered Bank	—		—	—		—		32,000
	Korea Investment & Securities	3.130%		—	70,000		—		—
	Kiwoom Securities Co., Ltd.	3.130%		—	10,000		—		—
	Shinhan Securities Co., Ltd.	2.880%~2.940%		—	195,936		—		—
Total					588,400			~~W~~	450,140

All values are in US Dollars.

^1^	As of June 30, 2025, the interest rates for Financial Bond (6M), Term SOFR (3M), Financial Bond (1Y), KDB<br>bond (1Y), and MOR (6M) are 2.531%, 4.292%, 2.562%, 2.528%, and 2.530%, respectively.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

b.	Long-term borrowings
(In millions of Korean won and thousands of foreign currencies)				June 30, 2025					December 31, 2024
---	---	---	---	---	---	---	---	---	---	---	---	---	---
Financial institution	Type		Annual interest<br><br><br>rates	Foreign<br>currency		Korean<br>won			Foreign<br>currency		Korean<br>won
Export-Import Bank of Korea		Inter-Korean<br>Cooperation Fund^1^	1.000%		—	~~W~~	740			—	~~W~~	987
CA-CIB		General loans	3.020%~3.820%		—		200,000			—		100,000
JPM		General loans	—		—		—			—		100,000
DBS		General loans	2.980%~3.820%		—		200,000			—		100,000
Shinhan Bank		General loans	4.090%		—		100,000			—		100,000
		General loans ^2^	Term SOFR(3M)+1.300%	USD	21,127		28,656		USD	21,127		31,056
		General loans ^2^	Term SOFR(3M)+1.600%	USD	8,640		11,719		USD	8,910		13,098
		General loans ^3^	4.490%		—		62,398			—		62,398
		General loans	4.300%		—		16,900			—		—
		General loans	—		—		—		USD	35,000		51,450
Woori Bank		General loans ^2^	EURIBOR(3M)+0.950%	EUR	6,900		10,983		EUR	6,900		10,548
		PF loans^2^	CD(91D)+1.750%		—		25,526			—		26,526
		General loans	3.970%		—		18,000			—		—
Hi Investment & Securities		CP	2.302%		—		96,506			—		95,321
Korea Investment & Securities		CP	—		—		—			—		78,933
Korea Development Bank		General loans	3.770%		—		33,000			—		33,000
KDB Bank Uzbekistan		loans^4^	23.000%	UZS	34,826,079		3,831		UZS	45,448,426		4,999
		loans^4^	10.300%	USD	5,446		7,580		USD	5,400		7,725
NH Jayang		PF loans	—		—		—			—		8,366
Kyobo Life Insurance		PF loans	—		—		—			—		44,385
Standard Chartered Bank Korea		PF loans	3.900%		—		65,000			—		—
		PF loans	—		—		—			—		29,590
Samsung Life Insurance		PF loans	—		—		—			—		24,658
Kookmin Bank		General loans	4.750%		—		8,000			—		8,000
		General loans ^2^	CD(91D)+1.480%		—		20,000			—		—
NongHyup Bank		PF loans	3.900%		—		70,000			—		—
Korea Investment Capital		PF loans	8.000%		—		8,500			—		—
Korea Investment Savings Bank		PF loans	8.000%		—		1,500			—		—
DHG The 1st Co., Ltd.		PF loans	10.000%		—		10,000			—		—
Industrial Bank of Korea		PF loans	3.900%		—		65,000			—		—
Kyongnam Bank and others		General loans	4.300%		—		31,162			—		—
Hana Bank and others		PF loans	4.700%		—		349,347			—		—
Subtotal							1,444,348					931,040
Less: Current portion							(31,177	)				(371,451	)
Total						~~W~~	1,413,171				~~W~~	559,589

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

^1^	The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a 7-year grace period.
^2^	EURIBOR (3M), Term SOFR (3M) and CD (91D) are approximately 1.944%, 4.292%, 2.560% respectively, as of<br>June 30, 2025.
---	---
^3^	The general loans are repayable in installments over 4 years after a three-year grace period.<br>
---	---
^4^	The general loans are repayable in installments over 3 years after a two-year grace period.<br>
---	---
(2)	Repayment schedule of the Group’s debentures and borrowings including the portion of current liabilities<br>as of June 30, 2025, is as follows:
---	---
(In millions of Korean won)
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	Bonds						Borrowings
	In localcurrency		In foreigncurrency		Sub-<br>total		In localcurrency		In foreigncurrency		Sub-<br>total		Total
Jul. 1, 2025 ~ Jun. 30, 2026	~~W~~	1,095,000		1,220,760		2,315,760		561,119		58,457		619,576		2,935,336
Jul. 1, 2026 ~ Jun. 30, 2027		860,000		1,168,262		2,028,262		918,414		40,376		958,790		2,987,052
Jul. 1, 2027 ~ Jun. 30, 2028		1,460,000		741,112		2,201,112		397,944		3,804		401,748		2,602,860
Jul. 1, 2028 ~ Jun. 30, 2029		555,000		—		555,000		15,600		3,804		19,404		574,404
After Jul. 1, 2029		1,500,000		135,640		1,635,640		29,426		3,804		33,230		1,668,870
Total	~~W~~	5,470,000		3,265,774		8,735,774		1,922,503		110,245		2,032,748		10,768,522

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

13.	Provisions

Changes in provisions the six-month period ended June 30, 2025 and 2024, are as follows:

	2025
(In millions of Korean won)	Litigation			Restoration cost			Others			Total
Beginning balance	~~W~~	21,690			141,761			60,956			224,407
Increase (transfer)		27			5,521			12,566			18,114
Usage		(27	)		(1,526	)		(10,278	)		(11,831	)
Reversal		(100	)		(472	)		(347	)		(919	)
Others		—			(548	)		—			(548	)
Ending balance	~~W~~	21,590			144,736			62,897			229,223
Less: Current	~~W~~	(21,590	)		(33,229	)		(61,873	)		(116,692	)
Non-current		—			111,507			1,024			112,531
	2024
(In millions of Korean won)	Litigation			Restoration cost			Others			Total
Beginning balance	~~W~~	29,707			133,159			59,357			222,223
Increase (transfer)		(194	)		3,287			3,888			6,981
Usage		(3,389	)		(738	)		(3,816	)		(7,943	)
Reversal		(3,102	)		(491	)		(394	)		(3,987	)
Ending balance	~~W~~	23,022			135,217			59,035			217,274
Less: Current	~~W~~	(22,990	)		(23,869	)		(58,995	)		(105,854	)
Non-current		32			111,348			40			111,420

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

14.	Net Defined Benefit Liabilities (Assets)
(1)	The amounts recognized in the statements of financial position as of June 30, 2025 and December 31,<br>2024, are determined as follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Present value of defined benefit obligations	~~W~~	2,307,247			2,232,898
Fair value of plan assets		(2,114,986	)		(2,153,792	)
Liabilities	~~W~~	219,065			128,457
Assets	~~W~~	26,804			49,351
(2)	Changes in the defined benefit obligations for the six-month period<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning	~~W~~	2,232,898			2,365,793
Current service cost		114,439			109,967
Interest expense		32,485			41,963
Benefit paid		(69,209	)		(67,381	)
Remeasurements:		7,496			2,990
Changes in scope of consolidation		(11,308	)		(422	)
Others		446			(141	)
Ending	~~W~~	2,307,247			2,452,769
(3)	Changes in the fair value of plan assets for the six-month period ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning	~~W~~	2,153,792			2,462,925
Interest income		33,581			45,631
Remeasurements on plan assets:		112			220
Employer contributions		6,133			5,609
Benefits paid		(65,555	)		(70,052	)
Changes in scope of consolidation		(11,636	)		—
Others		(1,441	)		27,781
Ending	~~W~~	2,114,986			2,472,114

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(4)	Amounts recognized in the consolidated statement of profit or loss for the<br>six-month period ended June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Current service cost	~~W~~	114,439			109,967
Net interest income		(1,096	)		(3,668	)
Transfer out		(6,943	)		(7,556	)
Total expenses	~~W~~	106,400			98,743
15.	Commitments and Contingencies
---	---
(1)	As of June 30, 2025, major commitments with local financial institutions are as follows:<br>
---	---
(In millions of Korean won and<br><br><br>foreign currencies in thousands)	Financial institution
---	---	---	---
Bank overdraft	Kookmin Bank and others	374,000	—
Inter-Korean Cooperation Fund	Export-Import Bank of Korea	37,700	740
Economic Cooperation Business Insurance	Export-Import Bank of Korea	3,240	1,732
Collateralized loan backed by electronic accounts receivable-trade	Kookmin Bank and others	657,100	145,753
Plus electronic notes payable	Industrial Bank of Korea	50,000	2,899
Working capital loan	Korea Development Bank<br>and others	1,509,490	280,890
	Shinhan Bank	64,767	USD 64,767
	Woori Bank	6,900	EUR 6,900
Facility loans	Shinhan Bank and others	764,000	637,924
Derivatives transaction limit	Korea Development Bank<br>and others	2,620,000	USD 2,420,000
	Shinhan Bank and others	30,000,000	JPY 30,000,000
Total	KRW	3,395,530	1,069,938
		2,684,767	2,484,767
		6,900	6,900
		30,000,000	30,000,000

All values are in US Dollars.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(2)	As of June 30, 2025, guarantees received from financial institutions are as follows:<br>
(In millions of Korean won and<br><br><br>foreign currencies in thousands)	Financial institution	Limit
---	---	---
Hana Bank	Guarantee for payment in Korean currency	4,000
	Comprehensive credit line and others	2,900
	Comprehensive credit line and others	USD 10,300
Kookmin Bank	Guarantee for payment in foreign currency	USD 3,186
Shinhan Bank	Guarantee for payment in Korean currency	754
	Refund guarantee for advances received	USD 21,379
	Guarantee for payment in foreign currency	USD 76,562
	Corporate card issuance guarantee	VND 231,830
Woori Bank	Guarantee for payment in Korean currency	100
	Guarantee for payment in foreign currency	USD 7,000
	Performance guarantee and others	USD 282
	Guarantee for payment in foreign currency	EUR 6,900
Seoul Guarantee Insurance Company	Performance guarantee and others	424,760
ACE American Fire and Marine Insurance Company	Performance guarantee and others	USD 10,000
Korea Software Financial Cooperative	Performance guarantee and others	1,589,537
Korea Specialty Contractor Financial Cooperative	Performance guarantee and others	135
Korea Housing Finance Corporation	Performance guarantee and others	42,215
Information & Communication Financial Cooperative	Performance guarantee and others	836,332
Total	KRW	2,900,733
	USD	128,709
	EUR	6,900
	VND	231,830

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(3)	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 June 30, 2025, the Controlling Company and KT Sat Co., Ltd. are jointly and severally liable for reimbursement of<br>~~W~~ 428 million (as of December 31, 2024: ~~W~~ 433 million).
(4)	For the six-month period ended June 30, 2025, the Group entered<br>into agreements with the Securitization Specialty Companies (2025: First 5G 79^th^ to 81^st^ Securitization Specialty Co., Ltd., 2024: First 5G 73^rd^ to 78^th^ Securitization Specialty Co., Ltd.) and disposed of its trade receivables related to handset sales. The Group also made asset management<br>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.
---	---
(5)	As of June 30, 2025, the Group is a defendant in 165 lawsuits with a total claimed amount of<br>~~W~~ 155,918 million (as of December 31, 2024: ~~W~~ 141,941 million). As of June 30, 2025, litigation provisions of ~~W~~ 21,590 million for pending lawsuits and unasserted<br>claims are recorded as liabilities for potential loss in the ordinary course of business. The final outcomes of the cases cannot be estimated as of June 30, 2025 (Note 13).
---	---
(6)	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.
---	---
(7)	As of June 30, 2025, 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.
---	---
(8)	As of June 30, 2025, the contract amount of properties and equipment, intangible assets and investment<br>properties acquisition agreement made but not yet recognized amounts to ~~W~~ 306,054 million (as of December 31, 2024: ~~W~~ 350,949 million).
---	---
(9)	As of June 30, 2025, there are derivatives generated by the Group granting Drag-Along Right to financial<br>investors participating in paid-in capital increase of K Bank Inc. (Note 6).
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(10)	The Group entered into an agreement with financial investors of Epsilon Global Communications Pte regarding the<br>acquisition of shares contract. If certain 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,<br>and the right to sell shares for the convertible preferred shares they hold (Note 6).
(11)	The Group has an obligation for additional contributions as per agreement to Storm Ventures FUND VII and<br>others. As of June 30, 2025, remaining amounts of USD 29,900 thousand and JPY 160,000 thousand will be invested through the Capital Call method in the future.
---	---
(12)	During the operating period, the Group has an obligation of ~~W~~ 470,160 million (100%) to<br>provide financial support as an operating investor to K Defense Co., Ltd. established in accordance with the Private Investment Act on Social Infrastructure.
---	---
(13)	The Group has an agreement related to a stock sale contract with HYUNDAI MOBIS Co., Ltd., and HYUNDAI MOTOR<br>COMPANY. If the Company intends to dispose of the acquired stocks to a third party after a certain period has elapsed from the date of the contract and the acquired stocks are to be disposed to a third party, HYUNDAI MOBIS Co., Ltd., and HYUND AI<br>MOTOR COMPANY may exercise a preferential purchase right to designate a buyer with priority.
---	---
(14)	The Group entered into an agreement with equity investor who participated in the equity acquisition contract of<br>KT Cloud Co., Ltd. According to this agreement, if conditions per the agreement are met, the financial investor may exercise a Tag-Along or a Put-Option to the Group in<br>the future. In relation to this contract, the Group and the financial investor may settle mutual profits if there is a difference between the final public offering price and the preliminary public offering price (Note 6).
---	---
(15)	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.
---	---
(16)	As of June 30, 2025, the Group is in the process of exercising a put option on all of its shares in KT<br>Rwanda Networks Ltd. under the shareholders’ agreement with the Rwandan government.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(17)	Details of properties and equipment and investment properties provided as collateral as of June 30, 2025<br>and December 31, 2024, are as follows:
(in millions of Korean won)	June 30, 2025
---	---	---	---	---	---	---	---	---
Collateral	Carryingamount		Securedamount		Related account	Relatedamount		Mortgagee
Land and buildings	~~W~~	1,284,245		816,533	Borrowings		639,578	Industrial Bank of<br>Korea/Shinhan<br>Bank/Standard<br>Chartered Bank<br>and others
Land and buildings		660,424		101,396	Deposits received		85,848	leaseholders
(in millions of Korean won)	December 31, 2024
Collateral	Carryingamount		Securedamount		Related account	Relatedamount		Mortgagee
Land and buildings	~~W~~	79,959		76,668	Borrowings		63,890	Industrial Bank of<br>Korea/Shinhan<br>Bank/Standard<br>Chartered Bank
Land and buildings		541,351		68,019	Deposits received		58,062	leaseholder
(18)	The Group has established supplier finance agreements with certain suppliers, under which participating<br>suppliers may receive early payment of invoices issued to the Group through the Group’s external finance provider. The Group pays the finance provider in accordance with the usual payment terms to settle the debt. As of June 30, 2025, all<br>financial liabilities subject to the supplier finance agreement are included in trade and other payables, and the carrying amount is ~~W~~ 11,918 million (as of December 31, 2024: ~~W~~ 16,081 million). Of these,<br>the carrying amount of the part that the suppliers have already received from the finance provider is ~~W~~ 1,763 million (as of December 31, 2024: ~~W~~ 9,746 million). There were no significant non-cash changes in the carrying amount of the trade and other payables included in the Group’s supplier finance agreement.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

16.	Leases

Information for leases when the Group acts as a lessee is as follows. Information on leases when the Group acts as a lessor is described in Note 9.

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

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

(In millions of Korean won)	June 30, 2025		December 31, 2024
Right-of-use<br>assets
Property and building	~~W~~	921,138		950,940
Machinery and communication line facilities		76,071		103,672
Others		146,253		158,158
Total	~~W~~	1,143,462		1,212,770
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Lease liabilities ^1^
Current	~~W~~	354,838		349,264
Non-current		651,975		710,189
Total	~~W~~	1,006,813		1,059,453
^1^	Included in the line item other current liabilities and other<br>non-current liabilities in the consolidated statements of financial position (Note 8).
---	---

For the six-month periods ended June 30, 2025 and 2024, right-of-use assets related to leases increased by ~~W~~ 155,504 million and ~~W~~ 171,613 million, respectively.

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

The consolidated statement of profit or loss relating to leases for the six-month period June 30, 2025, and 2024, are as follows:

(In millions of Korean won)	2025
Depreciation of<br>right-of-use assets
Property and building	~~W~~	158,005	149,095
Machinery and communication line facilities		12,652	12,875
Others		42,648	44,221
Total	~~W~~	213,305	206,191
Interest expense relating to lease liabilities	~~W~~	21,308	25,198
Expense relating to short-term leases		5,794	2,908
Expense relating to leases of low-value assets that are<br>not short-term leases		13,333	6,826
Expense relating to variable lease payments not included in lease liabilities		6,705	7,188

The total cash outflow for leases for the six-month periods ended June 30, 2025 and 2024, is ~~W~~ 247,289 million and ~~W~~ 242,236 million, respectively.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

17.	Retained Earnings

Details of retained earnings as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025		December 31, 2024
Legal reserve ^1^	~~W~~	782,249		782,249
Voluntary reserves ^2^		4,651,362		4,651,362
Unappropriated retained earnings		9,306,275		8,346,165
Total	~~W~~	14,739,886		13,779,776
^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.
---	---
18.	Other Components of Equity
---	---
(1)	The Group’s other components of equity, as of June 30, 2025 and December 31, 2024, are as<br>follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Treasury stock	~~W~~	(410,509	)		(215,210	)
Gain on disposal of treasury stock		2,826			2,862
Share-based compensation		3,072			7,106
Equity transactions within consolidated entities<br>^1^		(432,234	)		(432,318	)
Total	~~W~~	(836,845	)		(637,560	)
^1^	Profit or loss incurred from transactions with non-controlling interest<br>and investment difference incurred from change in proportion of subsidiaries are included.
---	---
(2)	As of June 30, 2025 and December 31, 2024, the details of treasury stock, are as follows:<br>
---	---
	June 30, 2025		December 31, 2024
---	---	---	---	---
Number of shares (in shares)		10,045,243		6,188,739
Amount (in millions of Korean won)	~~W~~	410,509		215,210

Treasury stock held as of June 30, 2025, is expected to be utilized for stock compensation for the Group’s directors, employees, and for other purposes.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

19.	Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities
(1)	The Group has recognized the following amounts as revenue for three-month and the six-month periods ended June 30, 2025 and 2024:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Revenue from contracts with customers	~~W~~	7,359,709		14,144,784		6,489,158		13,087,000
Revenue from other sources		67,628		127,670		57,241		113,973
Total	~~W~~	7,427,337		14,272,454		6,546,399		13,200,973
(2)	Operating revenues for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Services provided	~~W~~	5,817,691		11,518,086		5,776,645		11,499,295
Sales of goods		1,609,646		2,754,368		769,754		1,701,678
Total	~~W~~	7,427,337		14,272,454		6,546,399		13,200,973

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

(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)	June 30, 2025		December 31, 2024
---	---	---	---	---
Contract assets ^1^	~~W~~	1,021,454		977,514
Contract liabilities ^1^		531,062		1,089,146
Deferred revenue ^2^		97,780		87,209
^1^	The Group recognized contract assets of ~~W~~ 131,120 million and contract liabilities of<br>~~W~~ 164,206 million for long-term construction contracts as of June 30, 2025 (December 31, 2024: contract assets of ~~W~~ 176,708 million and contract liabilities of ~~W~~ 815,826 million). The<br>Group recognizes contract assets as trade receivables and other receivables, and contract liabilities as other current liabilities.
---	---
^2^	Deferred revenue related to government grant is excluded.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(4)	The contract costs recognized as assets are as follows:
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Incremental costs of obtaining a contract	~~W~~	1,859,416		1,666,042
Costs to fulfil a contract		76,079		72,122
Total	~~W~~	1,935,495		1,738,164

As of June 30, 2025, the Group recognized ~~W~~ 872,759 million (six-month period ended June 30, 2024: ~~W~~ 857,847 million) of operating expenses related to contract cost assets.

(5)	For the three-month and six-month periods ended June 30, 2025 and<br>2024, revenue recognized from contract liabilities and deferred revenue carried-forward from prior year, is as follows:
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Revenue recognized from the beginning balance of contract liabilities
Allocation of the transaction price	~~W~~	54,710		118,625		47,225		115,785
Deferred revenue of joining/installment fees		11,818		24,303		10,835		22,704
Total	~~W~~	66,528		142,928		58,060		138,489

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

20.	Operating Expenses
(1)	Operating expenses for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month			Six-month
Salaries and wages	~~W~~	1,119,356		2,241,191		1,213,152			2,314,075
Depreciation		715,724		1,431,552		700,943			1,404,779
Depreciation of<br>right-of-use assets		108,808		213,305		103,285			206,191
Amortization of intangible assets		151,367		299,718		161,938			328,881
Commissions		395,929		790,557		332,380			685,388
Interconnection charges		100,132		197,497		102,165			212,091
International interconnection fees		30,566		61,506		26,425			63,285
Purchase of inventories		733,969		1,567,357		823,891			1,716,248
Changes of inventories		409,970		496,294		(64,906	)		(51,782	)
Sales promotion expense and sales commissions		596,675		1,165,361		554,351			1,120,721
Service costs		609,205		1,209,604		504,760			1,066,801
Utilities		126,735		263,518		130,059			264,430
Taxes and dues		63,061		127,502		64,437			129,728
Rent		33,944		73,067		39,043			76,181
Insurance premiums		14,296		31,446		13,504			31,641
Installation fees		37,925		83,764		42,220			80,051
Advertising expenses		37,337		69,587		40,754			72,809
Research and development expenses		39,019		100,432		43,144			94,178
Card service costs		699,844		1,372,489		771,019			1,512,921
Others		388,657		773,118		449,849			871,870
Total	~~W~~	6,412,519		12,568,865		6,052,413			12,200,487
(2)	Details of employee benefits for the three-month and six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Salaries & Wages	~~W~~	1,044,938		2,081,133		1,132,289		2,152,008
Post-employment benefits (defined benefits plan)		53,113		106,400		49,256		98,743
Post-employment benefits (defined contributions plan)		17,702		38,424		24,460		45,989
Share-based payment		2,893		5,233		929		3,848
Others		710		10,001		6,218		13,487
Total	~~W~~	1,119,356		2,241,191		1,213,152		2,314,075

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

21.	Other Income and Other Expenses
(1)	Other income for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025					2024
---	---	---	---	---	---	---	---	---	---
	Three-month			Six-month		Three-month		Six-month
Gain on disposal of property and equipment and investment properties	~~W~~	496			10,328		5,167		22,484
Gain on disposal of intangible assets		—			1,641		—		112
Gain on disposal of<br>right-of-use assets		725			1,664		1,236		1,527
Compensation on impairment of property and equipment		(2,885	)		14,681		35,515		65,600
Income from government subsidies		72			117		4,856		14,207
Gain on disposal of investments in associates		903			8,384		1,106		1,106
Gain on disposal of subsidiaries		—			10,156		52,688		52,688
Others		9,973			27,675		6,891		22,573
Total	~~W~~	9,284			74,646		107,459		180,297
(2)	Other expenses for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Loss on disposal of property and equipment and investment properties	~~W~~	11,454		26,002		20,701		36,345
Loss on disposal of intangible assets		3,437		5,305		1,744		7,839
Loss on disposal of<br>right-of-use assets		727		1,634		981		1,275
Loss on disposal of investments in associates		—		—		12		12
Loss on disposal of subsidiaries		6,161		6,564		3,154		3,154
Donations		1,987		5,718		573		4,326
Other allowance for bad debts		3,623		8,075		11,214		21,119
Others		8,712		20,613		9,648		44,329
Total	~~W~~	36,101		73,911		48,027		118,399

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

22.	Finance Income and Costs
(1)	Details of finance income for the three-month and six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Interest income	~~W~~	66,615		132,881		78,728		156,475
Gain on foreign currency transactions		6,802		11,696		5,111		7,908
Gain on foreign currency translation		257,564		268,604		16,472		20,915
Gain on derivatives transactions		78		154		3,209		3,209
Gain on valuation of derivatives		3,169		19,664		100,289		229,833
Divided income		12,701		41,504		11,166		42,212
Others		1,207		1,727		3,381		8,080
Total	~~W~~	348,136		476,230		218,356		468,632
(2)	Details of finance costs for the three-month and six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Interest expenses	~~W~~	95,760		188,843		91,039		194,863
Loss on foreign currency transactions		6,037		8,539		3,792		6,038
Loss on foreign currency translation		13,704		26,151		96,714		226,252
Loss on derivatives transactions		—		4,742		—		—
Loss on valuation of derivatives		247,742		256,303		261		354
Loss on disposal of trade receivables		2,452		3,467		3,227		3,589
Loss on valuation of financial instruments		9,515		9,653		15,633		16,393
Others		1,737		3,608		1,366		5,035
Total	~~W~~	376,947		501,306		212,032		452,524
23.	Income Tax Expense
---	---

Income tax expense is recognized based on the best estimate of the weighted average annual income tax rate expected for the full financial year. The estimated average annual effective income tax rate used for the year ending December 31, 2025, is 22.9%.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

24.	Earnings per Share

Basic earnings per share for the three-month and six-month periods ended June 30, 2025 and 2024, are calculated as follows:

(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 period, excluding ordinary shares held by the Group as treasury stock.

	2025				2024
	Three-month		Six-month		Three-month		Six-month
Profit attributable to ordinary shares (In millions of Korean won)	~~W~~	687,667		1,227,236		392,764		768,038
Weighted average number of ordinary shares outstanding (In number of shares)		243,812,057		244,777,361		245,756,858		245,993,685
Basic earnings per share (In Korean won)	~~W~~	2,820		5,014		1,598		3,122
(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:

	2025						2024
	Three-month			Six-month			Three-month			Six-month
Profit attributable to ordinary shares (In millions of Korean won)	~~W~~	687,667			1,227,236			392,764			768,038
Adjusted net income attributable to ordinary shares (In millions of Korean won)		(309	)		(566	)		(142	)		(241	)
Diluted profit attributable to ordinary shares (In millions of Korean won)	~~W~~	687,358			1,226,670			392,622			767,797
Number of dilutive potential ordinary shares outstanding^^(In number of shares) ^1^		26,121			65,166			25,111			66,620
Weighted average number of ordinary shares used for calculating diluted earnings per share (Innumber of shares)		243,838,178			244,842,527			245,781,969			246,060,305
Diluted earnings per share (In Korean won)	~~W~~	2,819			5,010			1,597			3,120
^1^	The dilutive potential common shares consist of share-based compensation.
---	---

Diluted earnings per share is calculated by dividing the profit for the period by the sum of the weighted average number of ordinary shares and dilutive potential ordinary shares. This calculation takes into account both ordinary shares and all dilutive potential shares.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

25.	Cash Generated from Operations
(1)	Cash flows from operating activities for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
1. Profit for the period	~~W~~	1,300,081			803,544
2. Adjustments for:
Income tax expense		386,678			282,153
Interest income ^1^		(189,858	)		(209,382	)
Interest expense ^1^		224,045			222,652
Dividend income ^2^		(42,894	)		(43,637	)
Depreciation		1,456,806			1,425,967
Amortization of intangible assets		303,639			335,071
Depreciation of<br>right-of-use assets		213,305			206,191
Provisions for post-employment benefits (defined benefits)		113,343			106,299
Allowance for bad debts		55,726			104,814
Share of net profit or loss of associates and joint ventures		(7,310	)		(7,290	)
Gain on disposal of associates and joint ventures		(11,976	)		(50,628	)
Loss on disposal of property, equipment and investment properties		15,674			13,861
Gain on disposal of<br>right-of-use assets		(30	)		(252	)
Loss on disposal of intangible assets		3,664			7,727
Impairment loss on intangible assets		822			857
Loss (gain) on foreign currency translation		(242,288	)		205,180
Loss (gain) on valuation of derivatives		240,209			(232,719	)
Loss on disposal of financial assets at amortized cost		18			1
Loss (gain) on disposal of financial assets at fair value through profit or loss		3,392			(3,440	)
Loss on valuation of financial assets at fair value through profit or loss ^3^		8,545			8,672
Others		(42,807	)		66,719
3. Changes in operating assets and liabilities
Increase in trade receivables		(151,788	)		(108,465	)
Decrease (increase) in other receivables		(523,632	)		84,990
Increase in other current assets		(332,086	)		(49,235	)
Increase in other non-current assets		(104,486	)		(19,669	)
Decrease (Increase) in inventories		624,842			(41,734	)
Increase in trade payables		83,474			79,917
Increase in other payables		56,735			38,331
Increase (decrease) in other current liabilities		(616,402	)		260,749
Decrease in other non-current liabilities		(1,729	)		(11,142	)
Increase (Decrease) in provisions		1,223			(2,640	)
Increase (Decrease) in deferred revenue		887			(882	)
Decrease in plan assets		232,174			158,417
Payment of post-employment benefits (defined benefit)		(264,853	)		(202,374	)
4. Cash generated from operations (1+2+3)	~~W~~	2,793,143			3,428,623
^1^	Subsidiaries such as BC Card Co., Ltd. recognize interest income and expense as operating revenue and expense,<br>respectively. Interest income of ~~W~~ 56,977 million (for the six-month period ended June 30, 2024: ~~W~~ 52,907 million) recognized as operating revenue and interest<br>expense of ~~W~~ 35,202 million (for the six-month period ended June 30, 2024: ~~W~~ 27,789 million) recognized as operating expense, for the six-month period ended June 30, 2025, are included in the adjustment.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

^2^	BC Card Co., Ltd. recognized dividend income as operating revenue. Dividend income of ~~W~~<br>1,384 million ~~~~ recognized as operating revenue for the six-month period ended June 30, 2025 (for the six-month period ended June 30, 2024:<br>~~W~~ 1,425 million) is included in the adjustment.
^3^	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. Net loss on valuation of financial assets at fair value through profit or loss of ~~W~~ 330 million (for the<br>six-month period ended June 30, 2024: net loss on valuation of financial assets at fair value through profit or loss of ~~W~~ 1,141 million) that is recognized as operating revenue and<br>expense, for the six-month period ended June 30, 2025, is included in the adjustment.
---	---
(2)	Significant transactions not affecting cash flows for the six-month<br>periods ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Reclassification of current portion of borrowings	~~W~~	743,561			1,827,739
Reclassification of<br>construction-in-progress to property and equipment		706,874			979,155
Change of other payables relating to acquisition of property and equipment		(370,189	)		66,921
Change of other payables relating to acquisition of intangible assets		(275,382	)		(285,805	)
Reclassification of other payables from net defined benefit liabilities		(23,766	)		(14,648	)
Increase in financial assets due to stock exchange		—			52,841

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

26.	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 six-month periods ended June 30, 2025 and 2024, are as follows:

(In millions of Korean won)	2025
							Others
	Beginning			Cash flows			Acquisition		Changesin FX rate			Fair valuechange			Otherchanges			Ending
Borrowings	~~W~~	10,520,691			484,284			22,990		(265,798	)		—			(11,981	)		10,750,186
Lease liabilities		1,059,453			(202,157	)		202,512		—			—			(52,995	)		1,006,813
Derivative liabilities		3			405			—		—			8,896			—			9,304
Derivative assets		(445,471	)		(3,724	)		—		—			219,043			3,993			(226,159	)
Total	~~W~~	11,134,676			278,808			225,502		(265,798	)		227,939			(60,983	)		11,540,144
(In millions of Korean won)	2024
							Others
	Beginning			Cash flows			Acquisition		Changesin FX rate			Fair valuechange			Otherchanges			Ending
Borrowings	~~W~~	10,218,165			(281,451	)		—		213,500			—			371			10,150,585
Lease liabilities		1,179,909			(200,555	)		180,971		—			264			(22,164	)		1,138,425
Derivative liabilities		24,547			—			—		193			(639	)		(22,417	)		1,684
Derivative assets		(159,211	)		1,118			—		(196,606	)		7,437			22,417			(324,845	)
Total	~~W~~	11,263,410			(480,888	)		180,971		17,087			7,062			(21,793	)		10,965,849

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

27.	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 three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	2025
	Operating revenues						Operating profit				Depreciation and<br>amortization^1^
	Three-month			Six-month			Three-month		Six-month		Three-month			Six-month
ICT	~~W~~	4,772,823			9,454,830			468,735		868,849		812,995			1,623,479
Finance		838,080			1,663,572			42,168		95,685		6,960			14,850
Satellite TV		170,422			340,019			14,467		27,619		10,927			22,305
Real estate		157,292			290,530			25,682		41,781		17,354			34,148
Others		2,981,133			5,333,555			448,719		625,715		157,093			311,580
Subtotal		8,919,750			17,082,506			999,771		1,659,649		1,005,329			2,006,362
Elimination		(1,492,413	)		(2,810,052	)		15,047		43,940		(29,430	)		(61,787	)
Consolidated amount	~~W~~	7,427,337			14,272,454			1,014,818		1,703,589		975,899			1,944,575
^1^	Sum of the depreciation and amortization of property and equipment, intangible assets, investment properties<br>and right-of-use assets.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)
	2024
	Operating revenues						Operating profit						Depreciation and<br>amortization^1^
	Three-month			Six-month			Three-month			Six-month			Three-month			Six-month
ICT	~~W~~	4,548,296			9,243,124			358,858			752,631			803,949			1,609,251
Finance		907,046			1,780,963			42,225			74,923			8,445			16,939
Satellite TV		176,206			354,090			12,723			25,685			12,238			24,609
Real estate		153,478			286,637			23,410			39,550			17,159			35,339
Others		2,019,313			4,016,985			73,848			132,072			153,417			304,714
Subtotal		7,804,339			15,681,799			511,064			1,024,861			995,208			1,990,852
Elimination		(1,257,940	)		(2,480,826	)		(17,078	)		(24,375	)		(29,042	)		(51,001	)
Consolidated amount	~~W~~	6,546,399			13,200,973			493,986			1,000,486			966,166			1,939,851
^1^	Sum of the depreciation and amortization of property and equipment, intangible assets, investment properties<br>and right-of-use assets.
---	---
(3)	Operating revenues for the six-month periods ended June 30, 2025<br>and 2024, and non-current assets as of June 30, 2025 and December 31, 2024, by geographical regions, are as follows:
---	---
(In millions of Korean won)	2025
---	---	---	---	---	---	---
	Operating revenues				Non-current assets^1^
Location	Three-month		Six-month		June 30, 2025
Domestic	~~W~~	7,384,643		14,184,419		19,845,481
Overseas		42,694		88,035		140,465
Total	~~W~~	7,427,337		14,272,454		19,985,946
^1^	Sum of property and equipment, intangible assets, investment properties and right-of-use assets.
---	---
(In millions of Korean won)	2024
---	---	---	---	---	---	---
	Operating revenues				Non-current assets^1^
Location	Three months		Six months		December 31, 2024
Domestic	~~W~~	6,500,587		13,113,006		20,021,125
Overseas		45,812		87,967		179,815
Total	~~W~~	6,546,399		13,200,973		20,200,940
^1^	Sum of property and equipment, intangible assets, investment properties and right-of-use assets.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

28.	Related Party Transactions
(1)	The list of related party of the Group as of June 30, 2025, is as follows:
---	---
Relationship	Name of Entity
---	---
Associates and joint ventures	49 entities such as K Bank Inc., KIF Investment Fund, Megazone Cloud Corporation, and KIAMCO Data Center Development Real Estate General Private Placement Investment Blind Trusts
Others ^1^	Goody Studio Co., Ltd., Rebellion Inc., Digital Pharm Co., Ltd., Mastern No.127 Logispoint Daegu Co., KORAMKO No. 143 General Private Real Estate Investment Company and others
^1^	Included within the scope of related parties under Korean IFRS 1024 due to the presence of significant<br>influence, even though treated in accordance with Korean IFRS 1109.
---	---
(2)	Significant balances of receivables and payables in relations to transactions with related parties as of<br>June 30, 2025 and December 31, 2024, are as follows:
---	---
(In millions of Korean won)		June 30, 2025
---	---	---	---	---	---	---	---	---	---	---	---
		Receivables				Payables
Relationship	Name of Entity	Tradereceivables		Otherreceivables		Tradepayables		Otherpayables		Lease<br>liabilities
Associates and joint ventures	K Bank, Inc.	~~W~~	814		95,964		—		822		—
	Little Big Pictures		235		1,396		—		19		—
	K-Realty 11th Real Estate Investment Trust Company		110		1,283		—		—		2,584
	K-Realty No.3 Real Estate General Private Placement Investment		3,930		—		—		—		—
	Others		3,555		2,837		182		1,252		—
Others	Others		584		176		2		—		—
	Total	~~W~~	9,228		101,656		184		2,093		2,584

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)		December 31, 2024
		Receivables				Payables
Relationship	Name of Entity	Trade<br>receivables		Other<br>receivables		Tradepayables		Other<br>payables		Lease<br>liabilities
Associates and joint ventures	K Bank, Inc.	~~W~~	778		147,868		—		83		—
	Little Big Pictures		235		1,396		—		2		—
	K-Realty 11th Real Estate Investment Trust Company		113		1,283		—		—		4,588
	K-Realty No.3 Real Estate General Private Placement Investment		7,911		—		—		—		—
	Others		2,439		1,628		1,302		1,326		—
Others	Others		138		240		1		—		—
	Total	~~W~~	11,614		152,415		1,303		1,411		4,588
(3)	Significant transactions with related parties for the six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)		2025
---	---	---	---	---	---	---	---	---	---	---	---
		Sales				Purchases				Acquisitionofright-of-useassets
Relationship	Name of Entity	Operating<br>revenue		Other<br>income		Operating<br>expenses		Others^1^
Associates and joint ventures	K Bank, Inc.	~~W~~	16,125		—		12,925		—		—
	HD Hyundai Robotics Co., Ltd.		38		—		—		—		—
	K-Realty 11th Real Estate Investment Trust Company		18		100		914		—		—
	K-Realty No.3 Real Estate General Private Placement Investment Company		24,980		169		19		—		—
	Others^2^		12,430		353		16,694		10,554		—
Others	Others		1		406		85		—		—
	Total	~~W~~	53,592		1,028		30,637		10,554		—
^1^	The amount of acquisition of property, equipment and others is included.
---	---
^2^	Transactions with Trustay Co., Limited. before they were classified as<br>non-affiliated companies are included.
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)		2024
		Sales				Purchases				Acquisitionofright-of-useassets
Relationship	Name of Entity	Operatingrevenue		Other<br>income		Operatingexpenses		Others^1^
Associates and joint ventures	K Bank, Inc.	~~W~~	16,574		—		9,453		—		—
	HD Hyundai Robotics Co., Ltd.		38		—		—		—		—
	K-Realty 11th Real Estate Investment Trust Company		18		100		1,385		—		19
	K-Realty No.3 Real Estate General Private Placement Investment Company		5,241		164		—		—		—
	Others^^		12,280		302		17,772		—		—
Others	Rebellions Co., Ltd.		17		—		—		430		—
	Total	~~W~~	34,168		566		28,610		430		19
^1^	The amount of acquisition of property, equipment and others is included.
---	---
(In millions of Korean won)		2025					2024
---	---	---	---	---	---	---	---	---	---	---	---	---
Relationship	Name of Entity	Financeincome	Financecosts		Dividend<br>Income		Financeincome		Financecosts		Dividend<br>income
Associates and joint ventures	K Bank, Inc.	~~W~~ 891		—		—		4,403		—		—
	K-Realty 11th Real Estate Investment Trust Company	—		42		200		—		102		202
	Others	—		—		5,444		—		—		4,495
	Total	~~W~~ 891		42		5,644		4,403		102		4,697
(4)	Key management compensation for the six-month periods ended<br>June 30, 2025 and 2024, consists of:
---	---
(In millions of Korean won)	2025		2024
---	---	---	---	---
Sort-term benefits	~~W~~	1,089		824
Post-employment benefits		140		97
Share-based compensation		367		332
Total	~~W~~	1,596		1,253

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(5)	Fund transactions with related parties for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	2025
---	---	---	---	---	---	---
	Borrowing transactions^1^				Equitycontributionsin cash
	Borrowings		Repayments
Associates and joint ventures
IBK-KT Young Entrepreneurs MARS Investment Fund	~~W~~	—		—		6,000
K-Realty 11th Real Estate Investment Trust<br>Company		—		914		—
K Bank, Inc.		—		—		100,000
Others		—		—		717
Total	~~W~~	—		914		106,717
^1^	Borrowing transactions include lease transactions.
---	---
(In millions of Korean won)	2024
---	---	---	---	---	---	---
	Borrowing transactions^1^				Equitycontributionsin cash
	Borrowings		Repayments
Associates and joint ventures
IBK-KT Young Entrepreneurs MARS Investment Fund	~~W~~	—		—		6,000
K-Realty 11th Real Estate Investment Trust<br>Company		—		508		—
TeamFresh Corp.^2^		—		—		52,841
Others		—		—		19,835
Others
Rebellions Co., Ltd.		—		—		9,999
Total	~~W~~	—		508		88,675
^1^	Borrowing transactions include lease transactions.
---	---
^2^	The transaction involved acquiring redeemable convertible preference shares of TeamFresh Corp. and occurred in<br>the process of exchange with the shares of Lolab Co., Ltd. that were held.
---	---
(6)	The Group has an obligation according to invest agreements with related parties such as KIAMCO Data Center<br>Development Real Estate General Private Placement Investment Blind Trusts. As of June 30, 2025 the Group has a plan to make an additional investment of ~~W~~ 92,034 million.
---	---
(7)	As of June 30, 2025, the limit of the credit card contract provided by the Group to K Bank, Inc. and<br>others is ~~W~~ 1,424 million (December 31, 2024: ~~W~~ 1,447 million).
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

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

Carrying amount and fair value of financial instruments by category as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025				December 31, 2024
	Carryingamount		Fair value		Carryingamount		Fair value
Financial assets
Cash and cash equivalents	~~W~~	3,794,410		^1^		3,716,680		^1^
Trade and other receivables
Financial assets at amortized cost ^2^		7,944,883		^1^		7,380,901		^1^
Financial assets at fair value through other comprehensive income		114,094		114,094		114,774		114,774
Other financial assets
Financial assets at amortized cost		948,201		^1^		962,653		^1^
Financial assets at fair value through profit or loss		990,017		990,017		1,029,926		1,029,926
Financial assets at fair value through other comprehensive income		1,965,219		1,965,219		1,665,368		1,665,368
Derivative financial assets for hedging		226,159		226,159		445,471		445,471
Total	~~W~~	15,982,983				15,315,773
Financial liabilities
Trade and other payables^^	~~W~~	6,949,073		^1^		7,214,174		^1^
Borrowings		10,750,186		10,738,083		10,520,690		10,423,619
Other financial liabilities
Financial liabilities at amortized cost		956,083		^1^		942,135		^1^
Financial liabilities at fair value through profit or loss		117,822		117,822		132,011		132,011
Derivative financial liabilities for hedging		9,304		9,304		3		3
Total	~~W~~	18,782,468				18,809,013
^1^	Since the carrying amount represents a reasonable approximation of fair value, it has been excluded from the<br>fair value disclosures.
---	---
^2^	Lease receivables are excluded from fair value disclosure in accordance with Korean IFRS 1107.<br>
---	---

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(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 disclosed at fair value or its fair value is disclosed as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
	Level 1		Level 2		Level 3		Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	—		114,094		—		114,094
Other financial assets
Financial assets at fair value through profit or loss		4,767		202,836		782,414		990,017
Financial assets at fair value through other comprehensive income		1,518,262		6,510		440,447		1,965,219
Derivative financial assets for hedging		—		226,159		—		226,159
Total	~~W~~	1,523,029		549,599		1,222,861		3,295,489
Liabilities
Borrowings	~~W~~	—		10,738,083		—		10,738,083
Other financial liabilities
Financial liabilities at fair value through profit or loss		—		3,446		114,376		117,822
Derivative financial liabilities for hedging		—		9,304		—		9,304
Total	~~W~~	—		10,750,833		114,376		10,865,209

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024
	Level 1		Level 2		Level 3		Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	—		114,774		—		114,774
Other financial assets
Financial assets at fair value through profit or loss		5,620		181,694		842,612		1,029,926
Financial assets at fair value through other comprehensive income		1,317,120		5,418		342,830		1,665,368
Derivative financial assets for hedging		—		445,471		—		445,471
Total	~~W~~	1,322,740		747,357		1,185,442		3,255,539
Liabilities
Borrowings	~~W~~	—		10,423,619		—		10,423,619
Other financial liabilities
Financial liabilities at fair value through profit or loss		—		—		132,011		132,011
Derivative financial liabilities for hedging		—		3		—		3
Total	~~W~~	—		10,423,622		132,011		10,555,633

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(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 for the six-month periods ended June 30, 2025 and 2024:

(In millions of Korean won)	2025
	Financial assets						Financial liabilities
	Financial assetsat FVTPL			Financial assetsat FVOCI			Financial liabilitiesat FVTPL
Beginning balance	~~W~~	842,612			342,830			132,011
Acquisition		20,673			100,000			—
Transfer		(3,245	)		(108	)		—
Disposal		(44,461	)		(1,157	)		(381	)
Amount recognized in profit or loss		(33,165	)		49			(17,254	)
Amount recognized in other comprehensive income		—			(1,167	)		—
Ending balance	~~W~~	782,414			440,447			114,376
(In millions of Korean won)	2024
---	---	---	---	---	---	---	---	---	---
	Financial assets						Financial liabilities
	Financial assetsat FVTPL			Financial assetsat FVOCI			Financial liabilitiesat FVTPL
Beginning balance	~~W~~	768,832			444,026			134,561
Acquisition		38,519			1,011			—
Transfer		50,995			(207	)		5,772
Disposal		(9,388	)		—			—
Amount recognized in profit or loss		10,811			—			(27,004	)
Amount recognized in other comprehensive income		—			302			—
Ending balance	~~W~~	859,769			445,132			113,329

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(4)	Valuation Technique

Valuation techniques 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 June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
	Fair value		Level		Major valuation techniques
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	114,094		2		DCF Model
Other financial assets
Financial assets at fair value through profit or loss		985,250		2,3		DCF Model,<br> <br>Adjusted Net Asset Model,<br><br><br>Market Approach Model,<br> <br>T-F Model
Financial assets at fair value through other comprehensive income		446,957		2,3		DCF Model,<br> <br>Hull-White model,<br><br><br>LSMC model
Derivative financial assets for hedging		226,159		2		DCF Model
Liabilities
Borrowings		10,738,083		2		DCF Model
Other financial liabilities
Financial liabilities at fair value through profit or loss		117,822		2,3		Binomial Option Pricing<br>Model
Derivative financial liabilities for hedging		9,304		2		DCF Model

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024
	Fair value		Level		Major valuation techniques
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	114,774		2		DCF Model
Other financial assets
Financial assets at fair value through profit or loss		1,024,306		2,3		DCF Model,<br> <br>Adjusted Net Asset Model,<br><br><br>Market Approach Model<br> <br>T-F Model
Financial assets at fair value through other comprehensive income		348,248		2,3		DCF Model,<br> <br>Market Approach Model
Derivative financial assets for hedging		445,471		2		DCF Model
Liabilities
Borrowings		10,423,619		2		DCF Model
Other financial liabilities
Financial liabilities at fair value through profit or loss		132,011		3		Binomial Option Pricing<br>Model
Derivative financial liabilities for hedging		3		2		DCF Model
(5)	Valuation Processes for Fair Value Measurements Categorized Within Level 3
---	---

The Group engages 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.

KT Corporation and Its Subsidiaries

Notes to the Consolidated Interim Financial Statements

As of June 30, 2025 and 2024, and December 31, 2024

30.	Events After the Reporting Period
(1)	The Group issued a debenture since the end of the reporting period, and the details are as follows.<br>
---	---
(In thousands of foreign currencies)
---	---	---	---	---
Type	Issue date	Foreign currency	Annual interest rates	Maturity
2025 Global	July 03, 2025	USD 500,000	4.375%	Jan 03, 2029
(2)	The Group decided on a quarterly dividend at the Board of Directors dated July 15, 2025, and the details are as<br>follows.
---	---
Type	Details
---	---
Dividend per share	~~W~~600 (Total dividend: ~~W~~ 144,658 million)
Dividend yield	1.1%
Dividend report date	July 30, 2025
Dividend pay date	Aug 14, 2025

KT Corporation

Separate Interim Financial Statements

June 30,2025 and 2024, and December 31, 2024

ATTACHMENT: INDEPENDENT AUDITOR’S REVIEW REPORT

KT Corporation

Index

June 30, 2025 and 2024, andDecember 31, 2024

	Page(s)
Report on Review of Separate Interim FinancialStatements	1 – 2
Separate Interim Financial Statements
Separate Interim Statement of Financial Position	3 – 4
Separate Interim Statement of Profit or Loss	5
Separate Interim Statement of Comprehensive Income	6
Separate Interim Statement of Changes in Equity	7
Separate Interim Statement of Cash Flows	8
Notes to the Separate Interim Financial Statements	9 – 58

Deloitte Anjin LLC<br> <br>9F., One IFC,<br><br><br>10, Gukjegeumyung-ro,<br> <br>Youngdeungpo-gu, Seoul<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 Review Report

[English Translation of Independent Auditor’s Review Report Originally Issued in Korean on August 14, 2025]

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

Reviewed Separate Interim Financial Statements

We have reviewed the accompanying separate interim financial statements of KT Corporation (the “Company”). The separate interim financial statements consist of the separate interim statement of financial position as of June 30, 2025, and the related separate interim statements of profit or loss and comprehensive income for the three-month and six-month periods ended June 30, 2025 and 2024, and changes in equity and cash flows for the six-month periods ended June 30, 2025 and 2024, all expressed in Korean won, and a summary of significant accounting policies and other explanatory notes.

Management’s Responsibility for the Separate Interim Financial Statements

Management is responsible for the preparation and fair presentation of these separate interim financial statements in accordance with Korean International Financial Reporting Standards (“K-IFRS”) No. 1034 Interim Financial Reporting, and for such internal control as management determines is necessary to enable the preparation of separate interim financial statements that are free from material misstatement, whether due to fraud or error.

Auditor’s Responsibility

Our responsibility is to express a conclusion on these separate interim financial statements based on our reviews.

We conducted our reviews in accordance with the Review Standards for Quarterly and Semi-annual Financial Statements established by the Securities and Futures Commission of the Republic of Korea. A review of separate interim financial statements consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with Korean Standards on Auditing (“KSA”) and consequently, does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

LOGO

Conclusion

Based on our reviews, nothing has come to our attention that causes us to believe that the accompanying separate interim financial statements referred to above are not presented fairly, in all material respects, the financial position as of June 30, 2025, and its financial performance and its cash flows for the six-month period ended June 30, 2025 in accordance with K-IFRS No.1034 Interim Financial Reporting.

Other Matters

We have audited the separate statement of financial position of the Company as of December 31, 2024, and the related separate statements of profit or loss, comprehensive income, changes in equity and cash flows for the year then ended, which are not accompanying this report, in accordance with KSA. We expressed an unqualified opinion on those financial statements in our audit report dated March 13, 2025. The accompanying separate statement of financial position as of December 31, 2024, presented for comparative purposes, is not different from the audited separate statement of financial position above in all material respects.

LOGO

Seoul, Korea

August 14, 2025

Notice to Readers

KT Corporation

Separate Interim Statements of Financial Position

Asof June 30, 2025 and December 31, 2024

(In millions of Korean won)		June 30, 2025		December 31, 2024
Assets
Current assets
Cash and cash equivalents	4,28	~~W~~	1,419,921	~~W~~	1,540,570
Trade and other receivables, net	4,5,28		2,958,072		2,904,846
Other financial assets	4,6,28		169,858		262,547
Inventories, net	7		166,744		224,678
Other current assets	8		2,307,604		1,959,960
Total current assets			7,022,199		6,892,601
Non-current assets
Trade and other receivables, net	4,5,28		278,911		309,106
Other financial assets	4,6,28		2,222,550		2,175,177
Property and equipment, net	9		10,913,653		11,477,680
Right-of-use<br>assets	16		852,740		896,299
Investment properties, net	9		1,139,211		1,114,379
Intangible assets, net	9		994,357		1,104,680
Investments in subsidiaries, associates and joint ventures	10		4,809,538		4,831,186
Other non-current assets	8		775,574		727,772
Total non-current assets			21,986,534		22,636,279
Total assets		~~W~~	29,008,733	~~W~~	29,528,880

KT Corporation

Separate Interim Statements of Financial Position

Asof June 30, 2025 and December 31, 2024

(In millions of Korean won)		June 30, 2025			December 31, 2024
Liabilities
Current liabilities
Trade and other payables	4,11,28	~~W~~	4,192,662		~~W~~	4,326,079
Borrowings	4,12,28		1,895,367			2,434,204
Current tax liabilities			146,344			32,057
Provisions	13,15		92,053			90,413
Deferred income	19		50,026			52,257
Other current liabilities	4,8,16		698,325			698,209
Total current liabilities			7,074,777			7,633,219
Non-current liabilities
Trade and other payables	4,11,28		217,528			479,416
Borrowings	4,12,28		5,184,406			5,437,715
Other financial liabilities	4,6,28		7,962			28
Net defined benefit liability	14		109,687			51,082
Provisions	13		97,946			96,059
Deferred income	19		195,565			136,382
Deferred tax liabilities			785,804			728,863
Other non-current liabilities	4,8,16		491,965			545,976
Total non-current liabilities			7,090,863			7,475,521
Total liabilities			14,165,640			15,108,740
Equity
Share capital			1,564,499			1,564,499
Share premium			1,440,258			1,440,258
Retained earnings	17		12,156,410			11,717,929
Accumulated other comprehensive income			270,319			86,478
Other components of equity	18		(588,393	)		(389,024	)
Total equity			14,843,093			14,420,140
Total liabilities and equity		~~W~~	29,008,733		~~W~~	29,528,880

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

KT Corporation

Separate Interim Statements of Profit or Loss

For thethree-month and six-month periods ended June 30, 2025 and 2024

			Three-Month and Six-Month Periods Ended June 30
(In millions of Korean won, except per share amounts)	Notes		2025				2024
			Three-month		Six-month		Three-month		Six-month
Operating revenue		19	~~W~~	4,772,823	~~W~~	9,454,830	~~W~~	4,548,296	~~W~~	9,243,124
Operating expenses		20		4,304,088		8,585,981		4,189,438		8,490,493
Operating profit				468,735		868,849		358,858		752,631
Other income		21		13,595		78,189		86,257		186,124
Other expenses		21		22,965		50,554		37,920		86,191
Finance income		22		309,958		397,851		173,696		382,801
Finance costs		22		346,892		423,583		171,777		360,102
Profit before income tax				422,431		870,752		409,114		875,263
Income tax expense		23		64,365		147,309		94,614		206,732
Profit for the period			~~W~~	358,066	~~W~~	723,443	~~W~~	314,500	~~W~~	668,531
Earnings per share
Basic earnings per share		24	~~W~~	1,469	~~W~~	2,956	~~W~~	1,280	~~W~~	2,718
Diluted earnings per share		24		1,468		2,955		1,280		2,717

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

KT Corporation

Separate Interim Statements of Comprehensive Income

For the three-month and six-month periods ended June 30, 2025 and 2024

			Three-Month and Six-Month Periods Ended June 30
(In millions of Korean won)	Notes		2025						2024
			Three-month			Six-month			Three-month			Six-month
Profit for the period			~~W~~	358,066		~~W~~	723,443		~~W~~	314,500		~~W~~	668,531
Other comprehensive income (loss)
Items that will not be reclassified to profit or loss:
Remeasurements of the net defined benefit liability		14		(791	)		3,819			(582	)		1,571
Valuation gains on equity instruments at fair value through other comprehensive income				153,432			148,000			115,272			227,409
Items that are or may be subsequently reclassified to profit or loss:
Valuation gains (losses) on cash flow hedges		6		(181,012	)		(167,131	)		57,638			137,472
Other comprehensive income from cash flow hedges reclassified to profit or loss				182,738			184,068			(62,295	)		(146,591	)
Other comprehensive income (loss) for the period, net of tax				154,367			168,756			110,033			219,861
Total comprehensive income for the period			~~W~~	512,433		~~W~~	892,199		~~W~~	424,533		~~W~~	888,392

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

KT Corporation

Separate Interim Statements of Changes in Equity

Forthe six-month periods ended June 30, 2025 and 2024

(In millions of Korean won)		Sharecapital		Sharepremium		Retainedearnings			Accumulatedothercomprehensiveincome			Othercomponentsof equity			Total equity
Balance as of January 1, 2024		~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	12,544,425		~~W~~	64,229		~~W~~	(569,872	)	~~W~~	15,043,539
Comprehensive income
Profit for the period			—		—		668,531			—			—			668,531
Valuation gains on financial assets at fair value through other comprehensive income	6		—		—		1,419			225,990			—			227,409
Remeasurements of net defined benefit liabilities	14		—		—		1,571			—			—			1,571
Valuation losses on cash flow hedges	6		—		—		—			(9,119	)		—			(9,119	)
Total comprehensive income for the period			—		—		671,521			216,871			—			888,392
Transactions with owners
Dividends paid			—		—		(482,970	)		—			—			(482,970	)
Interim Dividends paid			—		—		(122,859	)		—			—			(122,859	)
Acquisition of treasury stock			—		—		—			—			(27,100	)		(27,100	)
Disposal of treasury stock			—		—		—			—			3,760			3,760
Retirement of treasury stock			—		—		(205,956	)		—			205,956			—
Others			—		—		—			—			(4,656	)		(4,656	)
Subtotal			—		—		(811,785	)		—			177,960			(633,825	)
Balance as of June 30, 2024		~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	12,404,161		~~W~~	281,100		~~W~~	(391,912	)	~~W~~	15,298,106
Balance as of January 1, 2025		~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	11,717,929		~~W~~	86,478		~~W~~	(389,024	)	~~W~~	14,420,140
Comprehensive income
Profit for the period			—		—		723,443			—			—			723,443
Valuation gains (losses) on financial assets at fair value through other comprehensive<br>income	6		—		—		(18,904	)		166,904			—			148,000
Remeasurements of net defined benefit liabilities	14		—		—		3,819			—			—			3,819
Valuation gains on cash flow hedges	6		—		—		—			16,937			—			16,937
Total comprehensive income for the period			—		—		708,358			183,841			—			892,199
Transactions with owners
Dividends paid			—		—		(122,836	)		—			—			(122,836	)
Interim Dividends paid			—		—		(146,984	)		—			—			(146,984	)
Appropriation of retained earnings related to loss on disposal of treasury stock			—		—		(57	)		—			57			—
Acquisition of treasury stock			—		—		—			—			(199,374	)		(199,374	)
Disposal of treasury stock			—		—		—			—			4,075			4,075
Others			—		—		—			—			(4,127	)		(4,127	)
Subtotal			—		—		(269,877	)		—			(199,369	)		(469,246	)
Balance as of June 30, 2025		~~W~~	1,564,499	~~W~~	1,440,258	~~W~~	12,156,410		~~W~~	270,319		~~W~~	(588,393	)	~~W~~	14,843,093

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

KT Corporation

Separate Interim Statements of Cash Flows

For the six-month periods ended June 30, 2025 and 2024

			Six-Month Periods EndedJune 30
(In millions of Korean won)	Notes		2025			2024
Cash flows from operating activities
Cash generated from operations		25	~~W~~	2,413,718		~~W~~	2,641,158
Interest paid				(124,883	)		(138,434	)
Interest received				83,015			101,584
Dividends received				64,579			78,794
Income tax paid				(27,769	)		(130,035	)
Net cash inflow from operating activities				2,408,660			2,553,067
Cash flows from investing activities
Collection of loans				17,621			18,964
Disposals of financial assets at amortized cost				—			297,569
Disposals of financial assets at fair value through profit or loss				5,493			7,445
Disposals of financial assets at fair value through other comprehensive				2,297			7,851
Disposals of investments in subsidiaries, associates and joint ventures				34,176			14,899
Disposals of property and equipment				29,591			24,424
Disposals of intangible assets				3,002			2,116
Disposals of<br>right-of-use assets				398			100
Loans granted				(8,299	)		(12,319	)
Acquisitions of current financial assets at amortized cost				(626	)		—
Acquisitions of financial assets at fair value through profit or loss				(5,411	)		(10,615	)
Acquisitions of investments in subsidiaries, associates and joint ventures				(5,803	)		(73,270	)
Acquisitions of property and equipment				(1,145,596	)		(968,580	)
Acquisitions of intangible assets				(280,896	)		(276,775	)
Acquisitions of<br>right-of-use assets				(53	)		(444	)
Net cash outflow from investing activities				(1,354,106	)		(968,635	)
Cash flows from financing activities
Proceeds from borrowings and debentures				1,090,657			698,700
Dividends paid				(269,820	)		(605,829	)
Repayments of borrowings and debentures				(1,630,247	)		(1,000,247	)
Settlement of derivative contracts (outflow)				(3,724	)		—
Acquisition of treasury stock				(199,374	)		(27,100	)
Decrease in lease liabilities				(162,441	)		(169,455	)
Net cash outflow from financing activities		26		(1,174,949	)		(1,103,931	)
Effect of exchange rate change on cash and cash equivalents				(254	)		10
Net increase (decrease) in cash and cash equivalents				(120,649	)		480,511
Cash and cash equivalents
Beginning of the period				1,540,570			1,242,005
End of the period			~~W~~	1,419,921		~~W~~	1,722,516

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

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

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 represent 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 Company acquired the entire government-owned shares in accordance with the Korean government’s privatization plan. As of June 30, 2025, the Korean government does not own any shares in the Company.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

2.	Material Accounting Policies
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 (“Korean IFRS” or “K-IFRS”). The accompanying separate interim financial statements have been condensed, restructured, and translated into English from the Korean language financial statements.

The separate interim financial statements of the Company for the six-month period ended June 30, 2025, have been prepared in accordance with Korean IFRS 1034 Interim Financial Reporting and are separate financial statements in accordance with K-IFRS 1027. In order to understand the interim financial statements, the annual financial statements as of December 31, 2024 prepared in accordance with K-IFRS should be used together.

2.2	Changes in Accounting Policies and Disclosures
(1)	New and amended standards and interpretations adopted by the Company
---	---

The Company has applied the following standards and interpretations for the first time for their annual reporting period commencing January 1, 2025.

K-IFRS 1021 The Effects of Changes in Foreign Exchange Rates and K-IFRS 1101 First-time adoption of Korean International Financial Reporting Standards (Amendment) - Lack of Exchangeability

The amendments specify how to assess whether a currency is exchangeable, and how to determine the exchange rate when it is not.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

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

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 1109 Financial Instruments and K-IFRS 1107 Financial Instruments: Disclosures – Classification and measurement requirements of financial instruments

The amendments clarify the conditions related to the discharge of financial liability before the settlement date when settling such financial liabilities using an electronic payment system. They further specify an interest feature, a contingent feature, financial assets with non-recourse features and contractually linked instruments which should be considered in assessing whether contractual cash flows of a financial asset are consistent with a basic lending arrangement. Furthermore, the amendments include additional disclosure requirements for investments in equity instruments designated at fair value through other comprehensive income and contractual terms that could change the timing or amount of contractual cash flows. The amendments are applied retrospectively for annual reporting periods beginning on or after January 1, 2026 with earlier application permitted.

K-IFRS 1109 FinancialInstruments – Derecognition of lease liabilities and Transaction price

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

K-IFRS 1110 Consolidated Financial Statements – Determination of ‘de facto agent’

The amendments have amended K-IFRS 10: B74 to use less conclusive language and to clarify that the relationship described in K-IFRS 10: B74 is just one example of a circumstance in which judgement is required to determine whether a party is acting as a de facto agent.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

K-IFRS 1101 First-time adoption of Korean International Financial Reporting Standards – Hedging accounting by a first-time adopter

The amendments have improved the consistency of the wording of K-IFRS 1101: B6 with the requirements for hedge accounting in K-IFRS 1109 and added cross-references to K-IFRS 1109:6.4.1 to improve the understandability of K-IFRS 1101.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

K-IFRS 1107 Financial Instruments: Disclosures – Gain or loss on derecognition

The amendments have updated the obsolete cross-reference in K-IFRS 1107: B38 and aligned the wording of this paragraph with the terms used in K-IFRS.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

K-IFRS 1007 Statement of Cash Flows: Cost method

The amendments have replaced the term ‘cost method’ with ‘at cost’ in K-IFRS 1007:37.

The amendments are effective for annual reporting periods beginning on or after January 1, 2026, with earlier application permitted.

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

2.3	Accounting Policies

The material accounting policies and methods of computation used in the presentation of the separate interim financial statements are consistent with those of the separate financial statements for the year ended December 31, 2024, except for the changes resulting from the application of amendments and enactments of standards described in Note 2.2 (1) and as detailed below.

2.3.1	Income Tax Expense

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 reasonable expectations of future events under the given circumstances. As the resulting accounting estimates will, by definition, rarely equal the actual results, they involve a significant risk of resulting in material adjustments.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

4.	Financial Instruments by Category

Financial instruments by category as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Financial assets	Financialassets atamortized cost		Financialassets atFVTPL		Financialassets atFVOCI		Derivatives<br>used forhedging		Total
Cash and cash equivalents	~~W~~	1,419,921		—		—		—		1,419,921
Trade and other receivables		3,122,889		—		114,094		—		3,236,983
Other financial assets		81,301		428,703		1,657,236		225,168		2,392,408
(In millions of Korean won)	June 30, 2025
Financial liabilities	Financialliabilities atamortized cost		Financialliabilities atFVTPL		Derivativesused forhedging		Others		Total
Trade and other payables^1^	~~W~~	4,125,012		—		—		—		4,125,012
Borrowings		7,079,773		—		—		—		7,079,773
Other financial liabilities		—		28		7,934		—		7,962
Lease liabilities		—		—		—		716,492		716,492
^1^	Amounts related to employee benefit plans are excluded in Trade and other payables.
---	---
(In millions of Korean won)	December 31, 2024
---	---	---	---	---	---	---	---	---	---	---
Financial assets	Financialassets atamortized cost		Financialassets atFVTPL		Financialassets atFVOCI		Derivatives<br>used forhedging		Total
Cash and cash equivalents	~~W~~	1,540,570		—		—		—		1,540,570
Trade and other receivables		3,099,178		—		114,774		—		3,213,952
Other financial assets		80,465		456,224		1,458,891		442,144		2,437,724
(In millions of Korean won)	December 31, 2024
Financial liabilities	Financialliabilities atamortized cost		Financialliabilities atFVTPL		Derivativesused forhedging		Others		Total
Trade and other payables^1^	~~W~~	4,315,375		—		—		—		4,315,375
Borrowings		7,871,919		—		—		—		7,871,919
Other financial liabilities		—		28		—		—		28
Lease liabilities		—		—		—		759,743		759,743
^1^	Amounts related to employee benefit plans are excluded in Trade and other payables.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

5.	Trade and Other Receivables
(1)	Trade and other receivables as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
(In millions of Korean won)	June 30, 2025
---	---	---	---	---	---	---	---	---	---	---
	Total amounts		Provision forimpairment			Present valuediscount			Carrying<br>amount
Current assets
Trade receivables	~~W~~	2,878,994		(294,037	)		(8,000	)		2,576,957
Other receivables		416,731		(33,593	)		(2,023	)		381,115
Total	~~W~~	3,295,725		(327,630	)		(10,023	)		2,958,072
Non-current assets
Trade receivables	~~W~~	189,224		(927	)		(10,573	)		177,724
Other receivables		107,938		(362	)		(6,389	)		101,187
Total	~~W~~	297,162		(1,289	)		(16,962	)		278,911
(In millions of Korean won)	December 31, 2024
---	---	---	---	---	---	---	---	---	---	---
	Total amounts		Provision forimpairment			Present valuediscount			Carrying<br>amount
Current assets
Trade receivables	~~W~~	2,840,837		(290,502	)		(8,749	)		2,541,586
Other receivables		399,200		(34,376	)		(1,564	)		363,260
Total	~~W~~	3,240,037		(324,878	)		(10,313	)		2,904,846
Non-current assets
Trade receivables	~~W~~	221,495		(927	)		(14,150	)		206,418
Other receivables		109,723		(430	)		(6,605	)		102,688
Total	~~W~~	331,218		(1,357	)		(20,755	)		309,106

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(2) Details of other receivables as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Loans	~~W~~	27,821		37,005
Receivables		269,362		246,303
Accrued income		9,428		1,812
Refundable deposits		209,646		215,634
Provision for impairment		(33,955	)	(34,806	)
Total		482,302		465,948

(3) The maximum exposure to credit risks for trade and other receivables is the carrying amount of each class of receivables mentioned above as of June 30, 2025.

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

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

6.	Other Financial Assets and Liabilities
(1)	Details of other financial assets and liabilities as of June 30, 2025 and December 31, 2024, are as<br>follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Other financial assets
Financial assets at amortized cost ^1^	~~W~~	81,301			80,465
Financial assets at fair value through profit or loss ^2^		428,703			456,224
Financial assets at fair value through other comprehensive income		1,657,236			1,458,891
Derivatives used for hedging		225,168			442,144
Less: Non-current		(2,222,550	)		(2,175,177	)
Current	~~W~~	169,858			262,547
Other financial liabilities
Financial liabilities at fair value through profit or loss	~~W~~	28			28
Derivatives used for hedging		7,934			—
Less: Non-current		(7,962	)		(28	)
Current	~~W~~	—			—
^1^	As of June 30, 2025, the Company’s financial instruments amount to ~~W~~<br>30,464 million (December 31, 2024: ~~W~~ 30,464 million) and consist of checking account deposits, time deposits, and others which are subject to withdrawal restrictions.
---	---
^2^	As of June 30, 2025, the Company provided investment in Korea Software Financial Cooperative and others<br>amounting to ~~W~~ 1,136 million (December 31, 2024: ~~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 June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Debt instruments	~~W~~	428,703		456,224
Less: Non-current		(428,703	)	(456,224	)
Current	~~W~~	—		—
2)	The maximum exposure to credit risks debt instruments of financial assets at fair value through profit or loss<br>is the carrying amount of each class of debt instruments above as of June 30, 2025.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

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

1) Details of financial assets at fair value through other comprehensive income as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Equity instruments (Listed)	~~W~~	1,516,221		1,317,876
Equity instruments (Unlisted)		141,015		141,015
Less: Non-current		(1,657,236	)	(1,458,891	)
Current	~~W~~	—		—

2) Upon disposal of these equity instruments, any balance within the other comprehensive income is reclassified not 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

1) Details of valuation of derivatives used for hedging as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025						December 31, 2024
	Assets			Liabilities			Assets			Liabilities
Currency swap ^1^	~~W~~	225,168			7,934			442,144			—
Less: Non-current		(136,606	)		(7,934	)		(260,057	)		—
Current	~~W~~	88,562			—			182,087			—
^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.
---	---

2) Details of valuation gains and losses from derivatives for risk hedging purposes for the six-month periods ended June 30, 2025 and 2024, are as follows:

(In millions of Korean won)
	2025						2024
Type of transaction	Valuationgain		Valuationloss		Othercomprehensiveloss^1^		Valuationgain		Valuationloss		Othercomprehensiveloss^1^
Currency swap	~~W~~	—		247,379		22,470		197,811		193		(12,307	)
^1^	The amounts directly reflected in equity are before adjustments of deferred income tax.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

3) The effective portion recognized in profit or loss related to cash flow hedges amounts to valuation loss of ~~W~~ 225,214 million as other comprehensive income for the six-month periods ended June 30, 2025 (six-month period ended June 30, 2024: valuation gains of ~~W~~ 184,106 million). The ineffective portion recognized in profit or loss related to cash flow hedges amounts to valuation gains of ~~W~~ 478 million as current profit or loss for the six-month periods ended June 30, 2025 (six-month period ended June 30, 2024: ~~W~~ 1,205 million). In addition, the valuation loss reclassified from other comprehensive income to profit or loss amounts to ~~W~~ 247,684 million for the six-month periods ended June 30, 2025 (six-month period ended June 30, 2024: valuation gains of ~~W~~ 196,413 million).

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

1) Details of financial liabilities at fair value through profit or loss as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Derivative liabilities held for trading ^1^	~~W~~	28	28
^1^	Derivative liabilities recognized in relation to acquisition of Epsilon Global Communications Pte. Ltd. (Note<br>15).
---	---
7.	Inventories
---	---

Inventories as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)
	June 30, 2025							December 31, 2024
	Acquisitioncost		Valuation<br>allowance			Carrying<br>amount		Acquisitioncost		Valuationallowance			Carrying<br>amount
Merchandise	~~W~~	197,112		(30,368	)		166,744		285,892		(61,214	)		224,678

Cost of inventories recognized as expenses for the six-month periods ended June 30, 2025 amounts to ~~W~~ 1,318,748 million (for the six-month period ended June 30, 2024: ~~W~~ 1,194,359 million), and reversal of inventory valuation loss amounts to ~~W~~ 30,846 million for the six-month periods ended June 30, 2025 (for the six-month period ended June 30, 2024: ~~W~~ 25,502 million).

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

8.	Other Assets and Liabilities

Other assets and liabilities as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025			December 31, 2024
Other assets
Advance payments	~~W~~	54,107			52,289
Prepaid expenses		208,288			97,714
Contract costs		2,014,830			1,802,221
Contract assets		805,953			735,508
Less: Non-current		(775,574	)		(727,772	)
Current	~~W~~	2,307,604			1,959,960
Other liabilities
Advances received ^1^	~~W~~	216,626			215,354
Withholdings		21,313			25,362
Unearned revenue		3,083			828
Lease liabilities		716,492			759,743
Contract liabilities		232,776			242,898
Less: Non-current		(491,965	)		(545,976	)
Current	~~W~~	698,325			698,209
^1^	The amounts include adjustments arising from adoption of Korean IFRS 1115 Revenue from Contracts withCustomers (Note 19).
---	---
9.	Property and Equipment, Investment Properties, and Intangible Assets
---	---
(1)	Changes in property and equipment for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning, net	~~W~~	11,477,680			11,492,776
Acquisition and capital expenditure		876,926			1,038,655
Disposal and termination		(43,136	)		(34,702	)
Depreciation		(1,226,975	)		(1,200,285	)
Transfer to investment properties		(48,210	)		(5,651	)
Others ^1^		(122,632	)		(26,426	)
Ending, net	~~W~~	10,913,653			11,264,367
^1^	Amounts include transfers to intangible assets.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(2)	Changes in investment properties for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning, net	~~W~~	1,114,379			1,191,592
Depreciation		(23,378	)		(23,757	)
Transfer from property and equipment		48,210			5,651
Ending, net	~~W~~	1,139,211			1,173,486
(3)	As of June 30, 2025, the Company (Lessor) has entered into a<br>non-cancellable operating lease contract for real estate. The future minimum lease payments under this contract amount to ~~W~~ 132,883 million for one year or less, ~~W~~<br>230,641 million for more than one year and less than five years, ~~W~~ 447,186 million for over five years, and ~~W~~ 810,710 million in total.
---	---
(4)	Changes in intangible assets for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning, net	~~W~~	1,104,680			1,487,848
Acquisition and capital expenditure<br>^1^		130,571			31,737
Disposal and termination		(6,059	)		(9,134	)
Amortization		(234,835	)		(239,188	)
Ending, net	~~W~~	994,357			1,271,263
^1^	Amounts include transfers from property and equipment.
---	---
(5)	The carrying amount of goodwill and memberships assessed to have indefinite useful life and, therefore, not<br>subject to amortization is ~~W~~ 65,057 million (December 31, 2024: ~~W~~ 65,057 million) and ~~W~~ 57,434 million (December 31, 2024: ~~W~~ 55,778 million),<br>respectively as of June 30, 2025.
---	---
10.	Investments in Subsidiaries, Associates and Joint Ventures
---	---
(1)	Carrying amounts in investments in subsidiaries, associates and joint ventures as of June 30, 2025 and<br>December 31, 2024, is as follows:
---	---
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Subsidiaries	~~W~~	4,397,945		4,419,598
Associates and joint ventures		411,593		411,588
Total	~~W~~	4,809,538		4,831,186

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

1)	Investments in subsidiaries as of June 30, 2025 and December 31, 2024, are as follows:<br>
(In millions of Korean won)	Location		Percentage ofownership (%)			Carrying amount
---	---	---	---	---	---	---	---	---	---
				June 30,<br>2025				December 31,<br>2024
KT Estate Inc.		Korea		100.0	%	~~W~~	1,084,522		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		50.5	%		311,696		311,696
BC Card Co., Ltd.		Korea		69.5	%		633,004		633,004
KT M&S Co., Ltd.		Korea		100.0	%		26,914		26,914
KT Alpha Co., Ltd.		Korea		70.5	%		130,924		130,924
KT Telecop Co., Ltd.		Korea		92.7	%		138,541		138,541
KT Nasmedia, Inc. (formerly. Nasmedia, Co., Ltd.)<br>^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		2,745
KT Sports Co., Ltd.		Korea		52.6	%		27,327		27,327
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		94.8	%		16,901		10,160
KT Strategic Investment Fund No.3		Korea		86.7	%		130		130
PlayD Co., Ltd. ^2^		Korea		—			—		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
KT ES Pte. Ltd.		Singapore		68.8	%		16,003		16,003
Altimedia Corporation		Korea		100.0	%		22,000		22,000
KT Cloud Co., Ltd.		Korea		92.6	%		901,504		901,504
kt netcore Co. Ltd		Korea		100.0	%		61,000		61,000
kt p&m Co. Ltd		Korea		100.0	%		10,000		10,000
Others							72,896		81,290
Total						~~W~~	4,397,945		4,419,598
^1^	As of June 30, 2025, although the 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 June 30, 2025, this entity is excluded from subsidiaries due to loss of control.<br>
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

2)	Investments in associates and joint ventures as of June 30, 2025 and December 31, 2024, are as<br>follows:
(In millions of Korean won)	Location		Percentage ofownership (%)			Carrying amount
---	---	---	---	---	---	---	---	---	---
				June 30,<br>2025				December 31,<br>2024
KIF Investment Fund		Korea		33.3	%	~~W~~	115,636		115,636
HD 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<br>YouthStart-up Investment Fund ^1^		Korea		17.1	%		1,665		2,055
Others							114,291		113,896
Total							411,593		411,588
^1^	The Company holds less than 20% interest in the investees as of June 30, 2025, but the investments are<br>classified as investments in associates as the Company exerts significant influence over the operational and financial policies.
---	---
(2)	Changes in investments in subsidiaries, associates and joint ventures for the<br>six-month periods ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning	~~W~~	4,831,186			4,796,606
Acquisition		5,803			73,270
Disposal		(27,451	)		(40,011	)
Ending	~~W~~	4,809,538			4,829,865

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

11.	Trade and Other Payables
(1)	Details of trade and other payables as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Current liabilities
Trade payables	~~W~~	773,382		517,879
Other payables		3,419,280		3,808,200
Total	~~W~~	4,192,662		4,326,079
Non-current liabilities
Other payables	~~W~~	217,528		479,416
(2)	Details of other payables as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Non-trade payable	~~W~~	2,070,574			2,917,086
Accrued expenses		1,091,958			901,219
Operating deposits		379,678			375,105
Others		94,598			94,206
Less: Non-current		(217,528	)		(479,416	)
Current	~~W~~	3,419,280			3,808,200

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

12.	Borrowings
(1)	Details of borrowings as of June 30, 2025 and December 31, 2024, are as follows:<br>
---	---
1)	Debentures
---	---
(In millions of Korean won and foreign currencies in thousands)			June 30, 2025			December 31, 2024
---	---	---	---	---	---	---	---	---
Type	Maturity	Annual interestrates	Foreigncurrency			Foreigncurrency
MTNP notes ^1^	Sep. 7, 2034	6.500%		100,000	135,640		100,000	147,000
MTNP notes	Jul. 18, 2026	2.500%		400,000	542,560		400,000	588,000
MTNP notes	Sep. 1, 2025	1.000%		400,000	542,560		400,000	588,000
MTNP notes	Jan. 21, 2027	1.375%		300,000	406,920		300,000	441,000
MTNP notes	Aug. 8, 2025	4.000%		500,000	678,200		500,000	735,000
MTNP notes	Feb. 2, 2028	4.125%		500,000	678,200		500,000	735,000
MTNP notes	Mar. 5, 2027	1.217%		23,300,000	218,782		—	—
MTNP notes	Mar. 7, 2028	1.367%		6,700,000	62,912		—	—
The 183-3rd Public bond	Dec. 22, 2031	4.270%		—	160,000		—	160,000
The 184-3rd Public bond	Apr. 10, 2033	3.170%		—	100,000		—	100,000
The 186-4th Public bond	Jun. 26, 2034	3.695%		—	100,000		—	100,000
The 187-4th Public bond	Sep. 2, 2034	3.546%		—	100,000		—	100,000
The 188-2nd Public bond	Jan. 29, 2025	—		—	—		—	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 190-3rd 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 191-3rd 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 192-3rd 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 193-2nd Public bond	Jun. 17, 2025	—		—	—		—	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 194-2nd Public bond	Jan. 27, 2026	1.452%		—	140,000		—	140,000
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 195-2nd 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	—		—	—		—	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	—		—	—		—	280,000
The 197-2nd Public bond	Jun. 29, 2027	4.188%		—	120,000		—	120,000

All values are in US Dollars.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won and foreign currencies in thousands)				June 30, 2025					December 31, 2024
Type	Maturity	Annual interestrates		Foreigncurrency		Korean won			Foreigncurrency		Korean won
The 198-1st Public bond	Jan. 10, 2025		—		—	~~W~~	—			—	~~W~~	70,000
The 198-2nd Public bond	Jan. 12, 2026		3.869%		—		150,000			—		150,000
The 198-3rd Public bond	Jan. 12, 2028		3.971%		—		80,000			—		80,000
The 199-1st Public bond	Jul. 11, 2025		4.028%		—		85,000			—		85,000
The 199-2nd Public bond	Jul. 10, 2026		4.146%		—		160,000			—		160,000
The 199-3rd Public bond	Jul. 12, 2028		4.221%		—		155,000			—		155,000
The 200-1st Public bond	Feb. 27, 2026		3.552%		—		120,000			—		120,000
The 200-2nd Public bond	Feb. 26, 2027		3.608%		—		200,000			—		200,000
The 200-3rd Public bond	Feb. 27, 2029		3.548%		—		80,000			—		80,000
The 201-1st Public bond	Dec. 2, 2027		2.899%		—		130,000			—		130,000
The 201-2nd Public bond	Dec. 2, 2029		2.918%		—		70,000			—		70,000
The 201-3rd Public bond	Dec. 2, 2034		3.057%		—		100,000			—		100,000
	Subtotal						6,595,774					7,494,000
Less: Current portion							(1,894,874	)				(2,333,711	)
Discount on bonds							(16,741	)				(23,068	)
	Total					~~W~~	4,684,159				~~W~~	5,137,221
^1^	As of June 30, 2025, the Company has outstanding notes in the amount of USD 100 million with fixed<br>interest rates under Medium Term Note Program (“MTNP”) registered on the Singapore Stock Exchange, which allowed the issuance of notes of up to USD 2,000 million. However, the MTN program has been terminated since 2007.<br>
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

2)	Long-Term Borrowings
(In millions of Korean won and foreign currencies in thousands)
---	---	---	---	---	---	---	---	---	---	---	---
Financial institution	Type	Maturity	Annualinterestrates			June 30,2025			December 31,2024
Export-Import Bank of Korea	Inter-Korean Cooperation Fund ^1^	Jul. 10, 2026		1.000	%	~~W~~	740			987
CA-CIB	Long-term commercial papers	Feb. 26, 2027		3.020	%		100,000			—
	Long-term commercial papers	May. 28, 2027		3.820	%		100,000			100,000
JPM	Long-term commercial papers	Feb. 28, 2025		—			—			100,000
DBS	Long-term commercial papers	Feb. 26, 2027		2.980	%		100,000			—
	Long-term commercial papers	May. 28, 2027		3.820	%		100,000			100,000
Shinhan Bank	Long-term commercial papers	May. 28, 2027		4.090	%		100,000			100,000
Subtotal							500,740			400,987
Less: Current portion							(493	)		(100,493	)
Net						~~W~~	500,247			300,494
^1^	The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a 7-year grace period.
---	---
(2)	Repayment schedule of the Company’s debentures and borrowings including the portion of current<br>liabilities as of June 30, 2025, is as follows:
---	---
(In millions of Korean won)	Bonds
---	---	---	---	---	---	---	---	---	---	---
	In localcurrency		In foreigncurrency		Sub-total		Borrowings		Total
Jul.1, 2025 ~ Jun. 30, 2026	~~W~~	675,000		1,220,760		1,895,760		493		1,896,253
Jul.1, 2026 ~ Jun. 30, 2027		580,000		1,168,262		1,748,262		500,247		2,248,509
Jul.1, 2027 ~ Jun. 30, 2028		380,000		741,112		1,121,112		—		1,121,112
Jul.1, 2028 ~ Jun. 30, 2029		345,000		—		345,000		—		345,000
After Jul.1, 2029		1,350,000		135,640		1,485,640		—		1,485,640
Total	~~W~~	3,330,000		3,265,774		6,595,774		500,740		7,096,514

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

13.	Provisions

Changes in provisions for the six-month period ended June 30, 2025 and 2024, are as follows:

(In millions of Korean won)	2025
	Litigation			Restorationcost			Others			Total
Beginning balance	~~W~~	21,590			125,150			39,732			186,472
Increase (transfer)		27			3,877			7,456			11,360
Usage		(28	)		(862	)		(6,702	)		(7,592	)
Reversal		—			(241	)		—			(241	)
Ending balance	~~W~~	21,589			127,924			40,486			189,999
Less: Current		(21,589	)		(30,825	)		(39,639	)		(92,053	)
Non-current		—			97,099			847			97,946
(In millions of Korean won)	2024
	Litigation			Restorationcost			Others			Total
Beginning balance	~~W~~	25,879			115,747			40,728			182,354
Increase (transfer)		26			3,146			(43	)		3,129
Usage		(1,222	)		(588	)		(185	)		(1,995	)
Reversal		(3,093	)		(443	)		—			(3,536	)
Ending balance	~~W~~	21,590			117,862			40,500			179,952
Less: Current		(21,590	)		(23,116	)		(40,476	)		(85,182	)
Non-current		—			94,746			24			94,770

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

14.	Net Defined Benefit Liabilities
(1)	The amounts recognized in the statements of in the statements of financial position as of June 30, 2025<br>and December 31, 2024, are determined as follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Present value of defined benefit obligations	~~W~~	1,405,773			1,344,701
Fair value of plan assets		(1,296,086	)		(1,293,619	)
Liabilities, net	~~W~~	109,687			51,082
(2)	Changes in the defined benefit obligations for the six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning	~~W~~	1,344,701			1,548,588
Current service cost		51,510			56,177
Interest expense		22,694			30,823
Benefits paid		(13,132	)		(13,004	)
Ending	~~W~~	1,405,773			1,622,584
(3)	Changes in the fair value of plan assets for the six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Beginning	~~W~~	1,293,619			1,609,178
Interest income		22,304			32,084
Remeasurements on plan assets		(622	)		241
Benefits paid		(19,215	)		(16,349	)
Others		—			25,900
Ending	~~W~~	1,296,086			1,651,054
(4)	Amounts recognized in the separate statement of profit or loss for the<br>six-month periods ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Current service cost	~~W~~	51,510			56,177
Net interest expense (income)		390			(1,261	)
Account transfers		(6,318	)		(7,576	)
Total expense	~~W~~	45,582			47,340

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

15.	Commitments and Contingencies
(1)	As of June 30, 2025, major Covenants with local financial institutions are as follows:<br>
---	---
(In millions of Korean won and<br><br><br>foreign currencies in thousands)	Financial institution
---	---	---	---
Bank overdraft	Kookmin Bank and others	360,000	—
Working capital loan	Korea Development Bank<br>and others	1,080,050	100,000
Inter-Korean Cooperation Fund	Export-Import Bank of Korea	37,700	740
Economic Cooperation Business Insurance	Export-Import Bank of Korea	3,240	1,732
Collateralized loan backed by electronic accounts receivable-trade	Kookmin Bank and others	347,000	112,070
Plus electronic notes payable	Industrial Bank of Korea	50,000	2,899
Derivatives transaction limit	Korea Development Bank<br>and others	2,620,000	USD 2,420,000
	Shinhan Bank<br>and others	30,000,000	JPY 30,000,000
	KRW	1,877,990	217,441
Total		2,620,000	2,420,000
		30,000,000	30,000,000

All values are in US Dollars.

(2)	As of June 30, 2025, guarantees received from financial institutions are as follows:<br>
(In millions of Korean won and<br><br><br>foreign currencies in thousands)	Warranty details
---	---	---
Hana Bank	Comprehensive credit line	2,900
		USD 8,700
Shinhan Bank	Guarantee for payment in foreign currency and others	USD 33,174
Kookmin Bank	Guarantee for payment in foreign currency	USD 3,186
Woori Bank	Guarantee for payment in foreign currency	USD 5,000
Korea Software Financial Cooperative	Advance payment/other guarantee	1,081,378
Information & Communication Financial Cooperative	Advance payment/other guarantee	700,000
Seoul Guarantee Insurance Company	Performance guarantee and others	23,910
Total	KRW	1,808,188
		50,060

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<br>liabilities incurred prior to its spin-off. As of June 30, 2025, the Company and KT Sat Co., Ltd. are jointly and severally liable for reimbursement of ~~W~~ 428 million (as of<br>December 31, 2024: ~~W~~ 433 million).

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(4)	For the six-month period ended June 30, 2025, the Company entered<br>into agreements with Securitization Specialty Companies (2025: First 5G 79^th^ to 81^st^ Securitization Specialty Co., Ltd., 2024: First 5G 73^rd^ to 78^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 June 30, 2025, the Company is a defendant in 110 lawsuits with a total claimed amount of<br>~~W~~ 130,166 million (as of December 31, 2024: ~~W~~ 124,384 million). As of June 30, 2025, litigation provisions of ~~W~~ 21,589 million for pending lawsuits and unasserted claims are<br>recorded as liabilities for potential loss in the ordinary course of business. The final outcomes of the cases cannot be estimated as of June 30, 2025 (Note 13).
---	---
(6)	Under the agreement of bond issuance and borrowings, the Company is required to maintain certain financial<br>ratios such as debt-to-equity ratio, use the funds for the designated purpose and report to the creditors periodically. The covenant also contains restrictions on<br>provision of additional collateral and disposal of certain assets.
---	---
(7)	As of June 30, 2025, 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 June 30, 2025, the contract amount of properties and equipment and intangible assets acquisition<br>agreements made but not yet recognized amounts to ~~W~~ 289,857 million (as of December 31, 2024: ~~W~~ 344,566 million).
---	---
(9)	The Company entered into an agreement with financial investors of Epsilon Global Communications Pte., Ltd.<br>regarding the acquisition of shares contract. If certain conditions are not met in the future as disclosed in the terms and conditions of the agreement, financial investors may exercise the Tag-Along Right,<br>Drag-Along Right, or the right to sell shares for the convertible preferred shares they hold (Note 6).
---	---
(10)	The Company has an obligation for additional contributions as per agreement to Storm Ventures FUND VII and<br>others. As of June 30, 2025, remaining amounts of USD 29,900 thousand and JPY 160,000 thousand will be invested through the Capital Call method in the future.
---	---
(11)	The Company has an obligation of ~~W~~ 470,160 million (100%) to provide financial support as<br>an operating investor during the operating period with respect to K Defense Co., Ltd. established in accordance with the Private Investment Act on Social Infrastructure.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(12)	The Company entered into a stock sale contract with HYUNDAI MOBIS and HYUNDAI MOTOR COMPANY. If the Company<br>intends to dispose of the acquired stocks to a third party after a certain period has elapsed from the date of the contract, HYUNDAI MOBIS and HYUNDAI MOTOR COMPANY may exercise a preferential purchase right to designate a buyer with priority.<br>
(13)	The Company entered into an agreement with equity investors who participated in the equity acquisition contract<br>of kt Cloud Co., Ltd. According to this agreement, if conditions per the agreement are met, the financial investor may exercise a Tag-Along or a Put-Option to the<br>Company in the future. In relation to this contract, the Company and the financial investor may settle mutual profits if there is a difference between the final public offering price and the preliminary public offering price.
---	---
(14)	As of June 30, 2025, the Company has the obligation of paying Minimum Guarantee as utilizing product<br>bundling of Tving Co., Ltd., and the right to be paid a certain proportion of the excess as per agreement.
---	---
(15)	As of June 30, 2025, the Company is in the process of exercising a put option on all of its shares in KT<br>Rwanda Networks Ltd. under the shareholders’ agreement with the Rwandan government.
---	---
(16)	Details of investment properties provided as collateral as June 30, 2025 and 2024, are as follows:<br>
---	---
(in millions of Korean won)	June 30, 2025
---	---	---	---	---	---	---	---	---	---	---
Collateral	Carrying amount		Secured amount		Related account		Related amount		Mortgagee
Land and buildings	~~W~~	125,844		35,640		Deposit received		29,876		leaseholder
(in millions of Korean won)	December 31, 2024
Collateral	Carrying amount		Secured amount		Related account		Related amount		Mortgagee
Land and buildings	~~W~~	177,229		35,573		Deposit received		29,899		leaseholder
(17)	The Company has established a supplier finance agreement with certain suppliers, under which participating<br>suppliers may receive early payment of invoices issued to the Company through the Company’s external finance provider. The Company pays the finance provider in accordance with the usual payment terms to settle the debt. As of June 30,<br>2025, all financial liabilities subject to the supplier finance agreement are included in trade and other payables, and the carrying amount is ~~W~~ 19,383 million (December 31, 2024: ~~W~~ 55,815 million). None of<br>this amount has been received by the suppliers from the finance provider. There were no significant non-cash changes in the carrying amount of the trade and other payables subject to the Company’s<br>supplier finance agreement.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

16.	Leases

Information for leases when the Company acts as a lessee is as follows. Information on leases when the Company acts as a lessor is described in Note 9.

(1)	The separate statement of financial position show the following amounts relating to leases:<br>
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Right-of-use<br>assets
Property and buildings	~~W~~	788,474		800,961
Machinery and communication line facilities		49,903		38,977
Others		14,363		56,361
Total	~~W~~	852,740		896,299
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Lease liabilities ^1^
Current	~~W~~	267,247		259,747
Non-current		449,245		499,996
Total	~~W~~	716,492		759,743
^1^	Included in the line item other current liabilities and non-current<br>liabilities in the separate statement of financial position (Note 8).
---	---

For the six-month periods ended June 30, 2025 and 2024, right-of-use assets related to leases increased by ~~W~~ 160,794 million and ~~W~~ 152,269 million, respectively.

(2)	The separate statement of profit or loss show the following amounts relating to leases:
(In millions of Korean won)	2025		2024
---	---	---	---	---
Depreciation of<br>right-of-use assets
Property and building	~~W~~	147,277		142,006
Machinery and communication line facilities		12,479		12,690
Others		4,769		15,701
Total	~~W~~	164,525		170,397
Interest expense relating to lease liabilities		12,236		18,709
Expense relating to Short-term leases		796		2,209
Expense relating to leases of low-value assets that are<br>not short-term leases		3,723		4,224

The total cash outflow for leases for the six-month periods ended June 30, 2025 and 2024 is ~~W~~ 177,499 million and ~~W~~ 194,201 million, respectively.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

17.	Retained Earnings

Details of retained earnings as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
Legal reserve ^1^	~~W~~	782,249	782,249
Voluntary reserves^2^		4,651,362	4,651,362
Unappropriated retained earnings		6,722,799	6,284,318
Total	~~W~~	12,156,410	11,717,929
^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^	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.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

18.	Other Components of Equity
(1)	The Company’s other components of equity as of June 30, 2025 and December 31, 2024, are as<br>follows:
---	---
(In millions of Korean won)	June 30, 2025			December 31, 2024
---	---	---	---	---	---	---
Treasury stock	~~W~~	(410,509	)		(215,210	)
Gain(Loss) on disposal of treasury stock		(93	)		(57	)
Share-based compensation		3,072			7,106
Other		(180,863	)		(180,863	)
Total	~~W~~	(588,393	)		(389,024	)
(2)	As of June 30, 2025 and December 31, 2024, details of treasury stock, are as follows:<br>
---	---
	June 30, 2025		December 31, 2024
---	---	---	---	---
Number of shares (in shares)		10,045,243		6,188,739
Amount (in millions of Korean won)	~~W~~	410,509		215,210

Treasury stock held as of June 30, 2025, is expected to be utilized for stock compensation for the Company’s directors, employees, and for other purposes.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

19.	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)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Revenue from contracts with customers	~~W~~	4,704,536		9,329,502		4,488,597		9,126,296
Revenue from other sources		68,287		125,328		59,699		116,828
Total	~~W~~	4,772,823		9,454,830		4,548,296		9,243,124
(2)	Operating revenues for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Services provided	~~W~~	4,131,731		8,176,193		4,048,038		8,088,606
Sales of goods		641,092		1,278,637		500,258		1,154,518
Total	~~W~~	4,772,823		9,454,830		4,548,296		9,243,124

Revenue from services provided is recognized over time and revenue from sales of goods is 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)	June 30, 2025		December 31, 2024
---	---	---	---	---
Contract assets^1^	~~W~~	937,073		863,884
Contract liabilities^1^		257,534		268,958
Deferred revenue^2^		80,371		74,275
^1^	The Company recognized contract assets of ~~W~~ 131,120 and, contract liabilities of<br>~~W~~ 24,758 million for long-term construction contracts as of June 30, 2025 (as of December 31, 2024: contract assets and liabilities of ~~W~~ 128,376 million and ~~W~~<br>26,060 million, respectively). The Company recognizes contract assets as trade receivables and other receivables, and contract liabilities as other current liabilities.
---	---
^2^	Deferred revenue related to government grants is excluded.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(4)	The contract costs recognized as assets are as follows:
(In millions of Korean won)	June 30, 2025		December 31, 2024
---	---	---	---	---
Incremental cost of obtaining a contract	~~W~~	1,861,143		1,650,500
Costs to fulfil a contract		153,687		151,721
Total	~~W~~	2,014,830		1,802,221

The Company recognized ~~W~~ 933,741 million as operating expenses for the six-month period ended June 30, 2025 (six-month period ended June 30, 2024: ~~W~~ 920,922 million) related to contract cost assets.

(5)	For the three-month and six-month periods ended June 30, 2025 and<br>2024, revenue recognized from contract liabilities and deferred revenue carried-forward from prior year, is as follows:
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Revenue recognized from the beginning balance of contract liabilities
Allocation of the transaction price	~~W~~	45,086		97,465		49,971		107,651
Deferred revenue of joining/installment fees		10,254		21,464		9,615		20,225
Total	~~W~~	55,340		118,929		59,586		127,876

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

20.	Operating Expenses
(1)	Operating expenses for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month			Six-month
Salaries and wages	~~W~~	463,029		923,219		631,312			1,172,032
Depreciation		611,802		1,226,659		603,709			1,204,206
Depreciation of<br>right-of-use assets		82,551		164,525		50,909			170,367
Amortization of intangible assets		118,642		232,295		149,331			234,678
Commissions		572,508		1,113,919		484,353			948,222
Interconnection charges		100,132		197,497		102,165			212,091
International interconnection fees		30,566		61,506		26,425			63,285
Purchase of inventories		603,252		1,229,968		586,448			1,204,874
Changes in inventories		23,460		57,934		(93,878	)		(36,017	)
Sales promotion expense and sales commissions		655,834		1,281,310		618,582			1,239,182
Service costs		225,951		431,422		201,694			401,126
Purchase of contents		178,503		353,076		174,325			349,591
Utilities		89,732		184,929		95,626			188,988
Taxes and dues		49,094		99,158		49,972			101,172
Rent		30,778		60,735		31,293			59,178
Insurance premiums		10,367		23,075		10,023			24,115
Installation fees		116,120		237,179		115,970			228,048
Advertising expenses		31,852		60,554		33,570			57,726
Research and development expenses		61,619		142,142		57,553			117,624
Bad debt expenses		11,948		23,877		12,145			25,297
Others		236,348		481,002		247,911			524,708
Total	~~W~~	4,304,088		8,585,981		4,189,438			8,490,493
(2)	Details of employee benefits for the three-month and six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month			Six-month
Short-term employee benefits	~~W~~	428,831		853,472		586,232			1,082,114
Post-employment benefits (defined benefits)		23,099		45,582		23,495			47,340
Post-employment benefits (defined contributions)		7,777		17,280		16,049			28,403
Share-based compensation		1,603		3,366		(101	)		1,738
Others		1,719		3,519		5,637			12,437
Total	~~W~~	463,029		923,219		631,312			1,172,032

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

21.	Other Income and Other Expenses
(1)	Other income for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025					2024
---	---	---	---	---	---	---	---	---	---
	Three-month			Six-month		Three-month		Six-month
Gain on disposal of property and equipment	~~W~~	393			10,175		5,017		22,279
Gain on disposal of<br>right-of-use assets		555			971		1,184		1,559
Gain on disposal of intangible assets		—			1,641		—		99
Compensation on impairment of property and equipment		(2,885	)		14,681		35,515		65,600
Gain on disposal of investments in subsidiaries and associates		4,500			6,725		30,882		30,882
Dividends received		5,064			33,147		5,173		39,146
Gain on government subsidies		72			117		4,856		14,207
Others		5,896			10,732		3,630		12,352
Total	~~W~~	13,595			78,189		86,257		186,124
(2)	Other expenses for the three-month and six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Loss on disposal of property and equipment	~~W~~	10,135		23,153		18,807		32,558
Loss on disposal of<br>right-of-use assets		386		1,236		979		1,273
Loss on disposal of intangible assets		3,399		4,697		1,473		7,117
Loss on disposal of investments in subsidiaries and associate		—		—		3,154		3,154
Donations		1,000		3,660		25		2,685
Others		8,045		17,808		13,482		39,404
Total	~~W~~	22,965		50,554		37,920		86,191

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

22.	Finance Income and Costs
(1)	Details of financial income for the three-month and six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025					2024
---	---	---	---	---	---	---	---	---	---
	Three-month			Six-month		Three-month		Six-month
Interest income	~~W~~	46,066			92,666		56,962		113,773
Gain on foreign currency transactions		3,824			6,350		3,216		4,766
Gain on foreign currency translation		252,694			259,553		15,888		19,067
Gain on valuation of derivatives		(5,814	)		—		83,929		197,811
Gain on dividends		11,888			37,983		10,429		39,648
Gain on disposal of financial instruments		140			140		526		4,990
Gain on valuation of financial instruments		1,159			1,159		2,746		2,746
Total	~~W~~	309,957			397,851		173,696		382,801
(2)	Details of financial costs for the three-month and six-month periods<br>ended June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025				2024
---	---	---	---	---	---	---	---	---
	Three-month		Six-month		Three-month		Six-month
Interest expenses	~~W~~	68,319		128,843		70,687		138,561
Loss on foreign currency transactions		4,194		5,802		2,557		4,003
Loss on foreign currency translation		20,417		23,037		86,598		205,150
Loss on derivative transactions		—		3,724		—		—
Loss on valuation of derivatives		240,196		247,379		100		193
Loss on disposal of trade receivables		2,455		3,461		3,227		3,587
Loss on valuation of financial instruments		10,144		10,144		7,057		7,057
Loss on disposal of financial instruments		1,167		1,193		1,551		1,551
Total	~~W~~	346,892		423,583		171,777		360,102

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

23.	Income Tax Expense

24.	Earnings per Share

Basic earnings per share for the three-month and six-month periods ended June 30, 2025 and 2024, are calculated as follows:

(1)	Basic Earnings per Share

	2025				2024
	Three-month		Six-month		Three-month		Six-month
Profit attributable to ordinary shares (In millions of Korean won)	~~W~~	358,066		723,443		314,500		668,531
Weighted average number of ordinary shares outstanding<br>(In number of shares)		243,812,057		244,777,361		245,756,858		245,993,685
Basic earnings per share(In Korean won)	~~W~~	1,469		2,956		1,280		2,718

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(2)	Diluted Earnings per Share

Diluted earnings per share from operations are calculated by adjusting the weighted average number of ordinary shares outstanding assuming that all dilutive potential ordinary shares are converted into ordinary shares. The Company has dilutive potential ordinary shares from other share-based compensation.

	2025				2024
	Three-month		Six-month		Three-month		Six-month
Profit attributable to ordinary shares (In millions of Korean won)	~~W~~	358,066		723,443		314,500		668,531
Diluted profit attributable to ordinary shares (In millions of Korean won)		358,066		723,443		314,500		668,531
Number of dilutive potential ordinary shares outstanding (In number of shares)		26,121		65,166		25,111		66,620
Weighted average number of ordinary shares used for calculating diluted earnings per share<br>(In number of shares)		243,838,178		244,842,527		245,781,969		246,060,305
Diluted earnings per share (In Korean won)	~~W~~	1,468		2,955		1,280		2,717

Diluted earnings per share are calculated by dividing the profit for the period by the sum of the weighted average number of ordinary shares and dilutive potential ordinary shares. This calculation takes into account both ordinary shares and all dilutive potential shares.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

25.	Cash Generated from Operations
(1)	Cash flows from operating activities for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
1. Profit for the period	~~W~~	723,443			668,531
2. Adjustments for:
Income tax expense		147,309			206,732
Interest income		(92,666	)		(113,773	)
Interest expense		128,843			138,561
Dividend income		(71,130	)		(78,794	)
Depreciation		1,250,353			1,224,042
Amortization of intangible assets		234,835			239,188
Depreciation of<br>right-of-use assets		164,525			170,397
Provisions for post-employment benefits (defined benefits)		51,900			54,916
Allowance for bad debts		29,531			38,827
Gain on disposal of investments in subsidiaries, associates and joint ventures		(6,725	)		(27,728	)
Loss on disposal of property and equipment		12,978			10,279
Loss on disposal of intangible assets		3,056			7,018
Loss (gain) on disposal of<br>right-of-use assets		265			(286	)
Loss (gain) on foreign currency translation		(236,516	)		186,083
Loss (gain) on valuation of derivatives, net		251,103			(197,618	)
Loss on valuation of financial assets at fair value through profit or loss		8,985			4,311
Loss (gain) on disposal of financial assets at fair value through profit or loss		1,046			(3,440	)
Others		(20,579	)		(20,485	)
3. Changes in operating assets and liabilities
Decrease (Increase) in trade receivables		(27,823	)		86,935
Decrease (Increase) in other receivables		(24,970	)		24,626
Increase in other current assets		(347,645	)		(56,778	)
Decrease (Increase) in other non-current assets		(47,800	)		24,318
Decrease (Increase) in inventories		88,750			(11,885	)
Increase in trade payables		256,941			216,668
Decrease in other payables		(97,154	)		(57,776	)
Decrease in other current liabilities		(7,385	)		(42,138	)
Decrease in other non-current liabilities		(3,259	)		(14,286	)
Increase (decrease) in provisions		1,089			(627	)
Increase in deferred revenue		56,952			2,974
Payment of post-employment benefits (defined benefits)		(214,538	)		(149,111	)
Decrease in plan assets		200,004			111,477
4. Cash generated from operations (1+2+3)	~~W~~	2,413,718			2,641,158

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(2)	Significant transactions not affecting cash flows for the six-month<br>periods ended June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	2025			2024
---	---	---	---	---	---	---
Reclassification of the current portion of borrowings	~~W~~	589,661			1,029,232
Reclassification of<br>construction-in-progress to property and equipment		933,942			882,119
Change of other payables relating to acquisition of property and equipment		(268,152	)		71,454
Change of other payables relating to acquisition of intangible assets		(272,955	)		(272,955	)
Reclassification of other payables from net defined benefit liabilities		(20,617	)		(15,079	)
Increase in financial assets due to stock exchange		—			52,841

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

26.	Changes in Liabilities Arising 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 six-month periods ended June 30, 2025 and 2024 are as follows:

(In millions of Korean won)	2025
							Others
	Beginning			Cash flows			Acquisition		Changes in FXrate			Fair valuechange		Otherchanges			Ending
Borrowings	~~W~~	7,871,919			(539,590	)		—		(259,587	)		—		7,031			7,079,773
Lease liabilities		759,743			(162,441	)		157,022		—			—		(37,832	)		716,492
Derivative liabilities		—			—			—		—			7,934		—			7,934
Derivative assets		(442,144	)		(3,724	)		—		—			216,976		3,724			(225,168	)
Total	~~W~~	8,189,518			(705,755	)		157,022		(259,587	)		224,910		(27,077	)		7,579,031
(In millions of Korean won)	2024
							Others
	Beginning			Cash flows			Acquisition		Changes in FXrate			Fair valuechange		Otherchanges			Ending
Borrowings	~~W~~	7,559,933			(301,547	)		—		203,622			—		3,261			7,465,269
Lease liabilities		851,610			(169,455	)		163,424		—			—		(19,196	)		826,383
Derivative liabilities		23,077			—			—		193			42		(22,417	)		895
Derivative assets		(156,774	)		—			—		(196,606	)		11,060		22,417			(319,903	)
Total	~~W~~	8,277,846			(471,002	)		163,424		7,209			11,102		(15,935	)		7,972,644

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

27.	Related Party Transactions
(1)	The list of related parties of the Company as of June 30, 2025, is as follows:
---	---
Relationship	Name of Entity
---	---
Subsidiaries	78 entities including KT Estate Inc., KT Skylife Co., Ltd., BC Card Co., Ltd.
Associates and joint ventures	49 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, etc.
^1^	Included within the scope of related parties under Korean IFRS 1024 due to the presence of significant<br>influence, even though treated in accordance with Korean IFRS 1109
---	---
(2)	The amount of the installment handset sales receivable inherited from KTIS Corporation, KTCS Corporation, KT<br>Telecop Co., Ltd., KT M&S Co., Ltd. and KT Service Nambu Co., Ltd. for six-month period ended June 30, 2025 is ~~W~~ 217,226 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>
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(4)	Significant balances of receivables and payables in relation to transaction with related parties as of<br>June 30, 2025 and December 31, 2024, are as follows:
(In millions of Korean won)	June 30, 2025
---	---	---	---	---	---	---	---	---	---	---	---	---
	Receivables						Payables
	Tradereceivables		Loans andothers		Otherreceivables		Tradepayables		Otherpayables		Lease<br>liabilities
Subsidiaries
KT Telecop Co., Ltd.	~~W~~	1,381		—		97		60		33,301		—
KTCS Corporation		30		—		6,451		—		57,602		4
KTIS Corporation		13,938		—		—		—		47,783		—
KT Service Bukbu Co., Ltd.		19		—		—		—		19,323		—
KT Service Nambu Co., Ltd.		—		—		—		—		35,350		1
KT Skylife Co., Ltd.		26,672		—		6,895		9,277		6,963		—
KTDS Co., Ltd.		935		—		830		—		123,883		—
KT Estate Inc.		957		—		41,637		—		7,903		14,852
KT ENA Co., Ltd.<br><br><br>(formerly. Skylife TV Co., Ltd.)		856		—		—		—		2,044		—
BC Card Co., Ltd. ^1^		386		—		6,728		—		11,244		7
KT Sat Co., Ltd.		1,302		—		—		—		1,095		—
KT Alpha Co., Ltd.		5,621		—		13		—		5,038		—
KT Commerce Inc.		18		—		70		3,276		16,174		9,787
KT M&S Co., Ltd.		74		5,775		118		—		54,837		—
KT GENIE Music Corporation. (formerly. GENIE Music Corporation.)		—		—		14,447		—		14,477		—
KT M Mobile Co., Ltd.		30,063		—		34,224		942		1,339		—
kt Nasmedia, Inc.<br><br><br>(formerly. Nasmedia, Co., Ltd.)^1^		1,398		—		46		—		16		—
KT MOS Bukbu Co., Ltd.^^		63		—		2		—		12,407		—
KT MOS Nambu Co., Ltd.		—		—		114		—		12,236		—
KT Engineering Co., Ltd		569		—		29		233		43,157		—
KT Studio Genie Co., Ltd.		108		—		8,765		—		38,493		—
KT cloud Co., Ltd.		12,412		—		—		—		51,073		139
East Telecom LLC		5,040		15,221		—		93		—		—
kt netcore Co. Ltd		165		—		5		48,047		41,189		—
kt p&m Co. Ltd		29		—		—		—		12,343		—
Others		11,358		—		12,572		3,453		13,986		10,170
Associates and joint ventures
K Bank Inc.		528		—		2,838		—		—		—
Others		307		—		1,019		112		213		818
Total	~~W~~	114,229		20,996		136,900		65,493		663,469		35,778

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024
	Receivables						Payables
	Tradereceivables		Loans andothers		Otherreceivables		Tradepayables		Otherpayables		Lease<br>liabilities
Subsidiaries
KT Linkus Co., Ltd.	~~W~~	—		—		2		—		11,050		—
KT Telecop Co., Ltd.		224		—		978		1,137		29,487		—
KTCS Corporation		186		—		5,466		—		53,067		4
KTIS Corporation		12,956		—		—		—		46,564		—
KT Service Bukbu Co., Ltd.		19		—		3		—		24,652		—
KT Service Nambu Co., Ltd.		—		—		—		—		25,537		—
KT Skylife Co., Ltd.		27,816		—		5,223		—		20,335		—
KTDS Co., Ltd.		1,067		—		2,005		—		135,524		—
KT Estate Inc.		581		—		42,422		—		22,115		3,743
KT ENA Co., Ltd.<br><br><br>(formerly. Skylife TV Co., Ltd.)		1,006		—		1,541		—		5,018		—
BC Card Co., Ltd. ^1^		4,402		—		6		—		12,288		5
KT Sat Co., Ltd.		1,266		—		—		—		1,309		—
KT Alpha Co., Ltd.		5,738		—		25		2,081		5,516		—
KT Commerce Inc.		14		—		99		8,640		23,215		6,007
KT M&S Co., Ltd.		223		8,400		71		—		52,773		—
KT GENIE Music Corporation. (formerly. GENIE Music Corporation.)		1		—		14,715		—		14,996		—
KT M Mobile Co., Ltd.		49,224		—		51		—		4,016		—
kt Nasmedia, Inc.<br><br><br>(formerly. Nasmedia, Inc.)		1,549		—		1		—		42		—
KT MOS Bukbu Co., Ltd.^^		64		—		736		—		15,122		—
KT MOS Nambu Co., Ltd.		—		—		211		—		12,881		—
KT Engineering Co., Ltd		—		—		367		2,965		123,402		—
KT Studio Genie Co., Ltd.		15		—		4,825		1,235		30,524		—
KT cloud Co., Ltd.		31,683		—		274		—		47,789		345
East Telecom LLC		5,811		15,307		—		89		—		—
Others		15,099		—		1,871		2,746		13,071		18
Associates and joint ventures
K Bank Inc.		518		—		3,706		—		1		—
Others		247		—		20		117		365		963
Total	~~W~~	159,709		23,707		84,618		19,010		730,659		11,085
^1^	As of June 30, 2025, the unsettled amount of ~~W~~ 11,240 million (December 31, 2024:<br>~~W~~ 12,145 million) in credit card transaction with BC Card Co., Ltd. is included in other payables.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(5)	Significant transactions with related parties for the six-month periods<br>ended June 30, 2025 and 2024, are as follows:
(In millions of Korean won)	2025
---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
	Sales				Purchases				Acquisitionofright-of-useassets		Finance<br>income		Finance<br>costs		Dividendsreceived
	Operatingrevenue		Other<br>income		Operatingexpenses		Others ^1^
Subsidiaries
KT Telecop Co., Ltd.^1^	~~W~~	5,095		—		74,311		2,002		—		1		—		—
KTCS Corporation ^1^		47,012		—		175,277		21		—		—		—		318
KTIS Corporation		34,292		—		177,920		—		—		—		—		1,224
KT Service Bukbu Co., Ltd.^1^		4,632		—		107,334		952		—		—		—		—
KT Service Nambu Co., Ltd.^1^		7,518		4		163,292		2,401		1		—		—		—
KT Skylife Co., Ltd.^1^		70,676		—		8,550		31		—		—		—		8,368
KTDS Co., Ltd.^1^		6,734		—		221,801		20,350		—		—		—		6,096
KT Estate Inc.^1^		28,402		—		39,088		1,048		24,715		—		379		6,876
KT ENA Co., Ltd. (formerly. Skylife TV Co., Ltd.)^1^		6,542		—		5,339		1,400		—		—		—		—
BC Card Co., Ltd.		5,068		20		13,630		—		2		1		—		—
KT Sat Co., Ltd.		3,426		—		5,117		—		—		—		—		—
KT Alpha Co., Ltd.		32,397		—		18,648		—		—		2		—		—
KT Commerce Inc.^1^		639		—		36,028		28,078		4,526		—		299		—
KT M&S Co., Ltd.		97,154		32		142,684		—		—		—		—		—
KT GENIE Music Corporation. (formerly. GENIE Music Corporation.)		229		—		27,510		—		—		—		—		—
KT M Mobile Co., Ltd.		142,288		81		2,609		—		—		—		—		—
KT Nasmedia, Inc. (formerly. Nasmedia, Inc.)		158		—		677		—		—		—		—		3,487
KT MOS Nambu Co., Ltd.^1^		1,293		—		46,189		2,832		—		—		—		—
KT MOS Bukbu Co., Ltd.^1^		1,852		—		45,302		2,754		—		—		—		—
KT Engineering Co., Ltd.^1^		1,379		15		17,771		49,466		—		—		—		—
KTHS Corporation<br><br><br>(formerly. KHS Corporation)		9		—		5,796		—		—		—		—		—
KT Studio Genie Co., Ltd.^1^		704		—		5,351		35,982		—		—		—		—
KT cloud Co., Ltd.		39,688		—		110,697		—		—		—		5		—
kt netcore Co. Ltd ^2^		7,122		—		113,287		155,870		—		—		—		—
kt p&m Co. Ltd ^2^		1,416		—		23,606		7,391		—		—		—		—
Others ^3^		29,319		14		54,040		2,555		10,460		2		15		1,699
Associates and joint ventures
K Bank Inc.		4,299		—		3		—		—		—		—		—
Others ^4^		1,053		—		10,377		—		—		1		15		5,079
Others
Others		1		—		—		—		1		—		—		—
Total	~~W~~	580,397		166		1,652,234		313,133		39,705		7		713		33,147
^1^	The amount of acquisition of properties, equipment and others is included.
---	---
^2^	kt netcore Co., Ltd. and kt p&m Co., Ltd. were established in the fourth quarter of 2024.<br>
---	---
^3^	Transactions with KT Linkus Co., Ltd., PlayD Co., Ltd. and Initech Co., Ltd. before it was excluded from<br>subsidiaries are included.
---	---
^4^	Transactions with Trustay Co., Ltd. before they were excluded from associates and joint ventures are included.<br>
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	2024
	Sales				Purchases				Acquisitionofright-of-useassets		Finance<br>income		Finance<br>costs		Dividendsreceived
	Operatingrevenue		Other<br>income		Operatingexpenses		Others ^1^
Subsidiaries
KT Linkus Co., Ltd.^1^	~~W~~	2,747		12		29,643		5		1		—		—		—
KT Telecop Co., Ltd.^1^		3,543		—		68,228		10		—		2		—		—
KTCS Corporation		44,048		2		172,923		1		—		—		—		318
KTIS Corporation ^1^		32,369		104		165,871		595		—		—		—		1,224
KT Service Bukbu Co., Ltd.^1^		5,390		—		105,135		931		—		—		—		—
KT Service Nambu Co., Ltd.^1^		6,731		—		127,772		1,283		—		—		—		—
KT Skylife Co., Ltd.^1^		70,782		1		9,095		30		—		—		—		8,368
KTDS Co., Ltd.^1^		6,690		—		216,193		27,325		—		—		—		4,848
KT Estate Inc.^1^		25,895		11		40,344		693		24,466		—		349		8,600
KT ENA Co., Ltd. (formerly. Skylife TV Co., Ltd.)^^		6,232		—		5,461		—		—		—		—		—
BC Card Co., Ltd.		4,680		—		14,739		—		4		2		—		4,589
KT Sat Co., Ltd.		3,782		—		5,706		—		—		—		—		—
KT Alpha Co., Ltd.		30,691		—		21,847		—		—		2		—		—
KT Commerce Inc.^1^		598		—		39,275		59,696		1,144		—		18		—
KT M&S Co., Ltd.		143,653		16		132,553		—		—		—		—		—
KT GENIE Music Corporation. (formerly. GENIE Music Corporation.)		188		—		27,121		—		—		—		—		—
KT M Mobile Co., Ltd.		125,842		44		1,409		—		—		—		—		—
kt Nasmedia, Inc. (formerly. Nasmedia, Inc.)		152		2		1,506		—		—		—		—		3,487
KT MOS Nambu Co., Ltd.^1^		933		—		46,192		3,375		—		—		—		—
KT MOS Bukbu Co., Ltd.^1^		1,531		—		45,799		3,567		—		—		—		—
KT Engineering Co., Ltd.^1^		1,637		—		19,972		69,251		—		—		—		—
KTHS Corporation<br><br><br>(formerly. KHS Corporation)		7		—		3,980		—		—		—		—		—
KT Studio Genie Co., Ltd.^1^		94		—		3,704		20,227		—		—		—		—
KT cloud Co., Ltd. ^1^		48,094		—		76,144		259		1		—		5		—
Others		13,578		355		52,241		257		10		2		—		3,861
Associates and joint ventures
K Bank Inc.		2,196		—		105		—		—		918		—		—
Others		1,535		—		2,783		—		19		—		25		3,850
Others
Rebellions Co., Ltd.		16		—		—		—		—		—		—		—
Total	~~W~~	583,634		547		1,435,741		187,505		25,645		926		397		39,145
^1^	The amount of acquisition of properties, equipment and others is included.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(6)	Key management compensation for the six-month periods ended<br>June 30, 2025 and 2024, consists of:
(In millions of Korean won)	2025		2024
---	---	---	---	---
Salaries and other short-term benefits	~~W~~	1,089		824
Post-employment benefits		140		97
Stock-based compensation		367		332
Total	~~W~~	1,596		1,253
(7)	Fund transactions with related parties for the six-month periods ended<br>June 30, 2025 and 2024, are as follows:
---	---
(In millions of Korean won)	2025
---	---	---	---	---	---	---	---	---	---	---	---
	Loan transactions				Borrowing transactions^1^				Equitycontributionsin cash andothers
	Loans		Collections		Borrowings		Repayments
Subsidiaries
KT M&S Co., Ltd.	~~W~~	29,400		32,025		—		—		—
KT Estate Inc.		—		—		58		12,698		—
Others		—		—		15,696		2,047		(1,657	)
Associates and joint ventures
IBK-KT Young Entrepreneurs MARS Investment Fund		—		—		—		—		5,000
Others Investment Association		—		—		—		161		(1,165	)
Total	~~W~~	29,400		32,025		15,754		14,906		2,178
^1^	Lease transactions are included in borrowing transactions.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	2024
	Loan transactions				Borrowing transactions^1^				Equitycontributionsin cash andothers
	Loans		Collections		Borrowings		Repayments
Subsidiaries
KT M&S Co., Ltd.	~~W~~	29,400		32,025		—		—		—
KT Estate Inc.		—		—		—		12,638		—
KT ES Pte. Ltd.		—		—		—		—		68,270
Others		—		—		1,996		248		—
Associates and joint ventures
IBK-KT Young Entrepreneurs MARS Investment Fund		—		—		—		—		5,000
KT-IBKC Future Investment Fund 1		—		—		—		—		(1,820	)
TeamFresh Corp.^2^		—		—		—		—		52,841
Others Investment Association		—		—		—		158		(415	)
Total	~~W~~	29,400		32,025		1,996		13,044		123,876
^1^	Lease transactions are included in borrowing transactions.
---	---
^2^	The transaction involved acquiring redeemable convertible preference shares of TeamFresh Corp. and occurred in<br>the process of exchange with the shares of Lolab Co., Ltd. that were held
---	---
(8)	As of June 30, 2025, the Company has entered into a credit card agreement with a limit of<br>~~W~~ 18,534 million (December 31, 2024: ~~W~~ 18,481 million) with BC Card Co., Ltd.
---	---
(9)	The Company has an obligation to invest in KIAMCO Data Center Development Real Estate General Private Placement<br>Investment Blind Trusts, a related party, and others according to the agreement. As of June 30, 2025 the Company is planning to an additional investment of ~~W~~ 44,690 million.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

28.	Fair Value

During the period ended June 30, 2025, there have been no significant changes in the business or economic environment that affect the fair value of the Company’s financial assets and liabilities.

(1)	Fair Value by Financial Instruments Category

Carrying amounts and fair values of the financial assets and financial liabilities by category as of June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025				December 31, 2024
	Carryingamount		Fair value		Carryingamount		Fair value
Financial assets
Cash and cash equivalents	~~W~~	1,419,921		^1^		1,540,570		^1^
Trade and other receivables
Financial assets measured at amortized cost		3,122,889		^1^		3,099,178		^1^
Financial assets at fair value through other comprehensive income		114,094		114,094		114,774		114,774
Other financial assets
Financial assets measured at amortized cost		81,301		^1^		80,465		^1^
Financial assets at fair value through profit or loss		428,703		428,703		456,224		456,224
Financial assets at fair value through other comprehensive income		1,657,236		1,657,236		1,458,891		1,458,891
Derivative financial assets for hedging purpose		225,168		225,168		442,144		442,144
Total	~~W~~	7,049,312				7,192,246
Financial liabilities
Trade and other payables	~~W~~	4,125,012		^1^		4,315,375		^1^
Borrowings		7,079,773		7,053,973		7,871,919		7,769,937
Other financial liabilities
Financial liabilities at fair value through profit or loss		28		28		28		28
Derivative financial liabilities for hedging purpose		7,934		7,934		—		—
Total	~~W~~	11,212,747				12,187,322
^1^	The Company did not conduct fair value estimation as the book amount is a reasonable approximation of the fair<br>value.
---	---

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(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<br>entity 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 June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
	Level 1		Level 2		Level 3		Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	—		114,094		—		114,094
Other financial assets
Financial assets at fair value through profit or loss		—		—		428,703		428,703
Financial assets at fair value through other comprehensive income		1,516,221		—		141,015		1,657,236
Derivative financial assets for hedging		—		225,168		—		225,168
Total	~~W~~	1,516,221		339,262		569,718		2,425,201
Liabilities
Borrowings	~~W~~	—		7,053,973		—		7,053,973
Other financial liabilities
Financial assets at fair value through profit or loss		—		—		28		28
Derivative financial liabilities for hedging		—		7,934		—		7,934
Total	~~W~~	—		7,061,907		28		7,061,935

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024
	Level 1		Level 2		Level 3		Total
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	—		114,774		—		114,774
Other financial assets
Financial assets at fair value through profit or loss		—		—		456,224		456,224
Financial assets at fair value through other comprehensive income		1,317,876		—		141,015		1,458,891
Derivative financial assets for hedging		—		442,144		—		442,144
Total	~~W~~	1,317,876		556,918		597,239		2,472,033
Liabilities
Borrowings	~~W~~	—		7,769,937		—		7,769,937
Other financial liabilities
Financial assets at fair value through profit or loss		—		—		28		28
Total	~~W~~	—		7,769,937		28		7,769,965

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(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 six-month periods ended June 30, 2025 and 2024 are as follows:

(In millions of Korean won)	2025
	Financial assets						Financial liabilities
	Financial assets atFVTPL			Financial assets atFVOCI			Financial liabilities atFVTPL
Beginning balance	~~W~~	456,224			141,015			28
Acquisition		5,411			—			—
Transfer		(105	)		145			—
Disposal		(5,353	)		(145	)		—
Amount recognized in profit or loss		(27,474	)		—			—
Ending balance	~~W~~	428,703			141,015			28
(In millions of Korean won)	2024
---	---	---	---	---	---	---	---
	Financial assets					Financial liabilities
	Financial assets atFVTPL			Financial assets atFVOCI		Financial liabilities atFVTPL
Beginning balance	~~W~~	441,321			201,189		1,403
Acquisition		10,615			—		—
Transfer		50,341			—		—
Disposal		(2,455	)		—		—
Amount recognized in profit or loss		10,334			—		—
Ending balance	~~W~~	510,156			201,189		1,403

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(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 June 30, 2025 and December 31, 2024, are as follows:

(In millions of Korean won)	June 30, 2025
	Fair value		Level		Valuation techniques
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	114,094		2	DCF Model
Other financial assets
Financial assets at fair value through profit or loss		428,703		3	DCF Model,<br><br><br>Adjusted Net Asset Model,<br> <br>Market<br>Approach Model,<br> <br>Binomial Option Pricing Model,<br><br><br>T-F Model
Financial assets at fair value through other comprehensive income		141,015		3	DCF Model
Derivative financial assets for hedging		225,168		2	DCF Model
Liabilities
Borrowings	~~W~~	7,053,973		2	DCF Model
Other financial liabilities
Financial assets at fair value through profit or loss		28		3	Binomial Option Pricing Model
Derivative financial liabilities for hedging		7,934		2	DCF Model

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

(In millions of Korean won)	December 31, 2024
	Fair value		Level		Valuation techniques
Assets
Trade and other receivables
Financial assets at fair value through other comprehensive income	~~W~~	114,774		2	DCF Model
Other financial assets
Financial assets at fair value through profit or loss		456,224		3	DCF Model,<br><br><br>Adjusted Net Asset Model,<br> <br>Market<br>Approach Model,<br> <br>Binomial Option Pricing Model,<br><br><br>T-F Model
Financial assets at fair value through other comprehensive income		141,015		3	DCF Model
Derivative financial assets for hedging		442,144		2	DCF Model
Liabilities
Borrowings	~~W~~	7,769,937		2	DCF Model
Other financial liabilities
Financial assets at fair value through profit or loss		28		3	Binomial Option Pricing Model
(5)	Valuation Processes for Fair Value Measurements Categorized Within Level 3
---	---

The Company engages 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 valuation processes and results with the CFO in line with the Company’s closing dates.

KT Corporation

Notes to the Separate Interim Financial Statements

Asof June 30, 2025 and 2024, and December 31, 2024

29.	Events After the Reporting Period

(1) The Company issued a debenture since the end of the reporting period, and the details are as follows.

(In thousands of foreign currencies)

Type	Issue date	Foreign currency	Annual interest rates	Maturity
2025 Global	July 03, 2025	USD 500,000	4.375%	Jan 03, 2029
(2)	The Company decided on a quarterly dividend at the Board of Directors dated July 15, 2025, and the details are<br>as follows.
---	---
Type	Details
---	---
Dividend per share	~~W~~600 (Total dividend: ~~W~~ 144,658 million)
Dividend yield	1.1%
Dividend report date	July 30, 2025
Dividend pay date	Aug 14, 2025

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