# EDGAR Filing Document

**Accession Number:** 0000892450
**File Stem:** 0001193125-25-304231
**Filing Date:** 2025-12
**Character Count:** 375124
**Document Hash:** 3d45a6744e24d1dc64eaa61386c589c9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-304231.hdr.sgml**: 20251202

**ACCESSION NUMBER**: 0001193125-25-304231

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 7

**CONFORMED PERIOD OF REPORT**: 20251201

**FILED AS OF DATE**: 20251202

**DATE AS OF CHANGE**: 20251201

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** KT CORP
- **CENTRAL INDEX KEY:** 0000892450
- **STANDARD INDUSTRIAL CLASSIFICATION:** TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14926
- **FILM NUMBER:** 251541270

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 206 JUNGJA DONG, BUNDANG GU,
- **STREET 2:** SUNGNAM, KYUNGGI DO, 463-711,
- **CITY:** KOREA M5
- **PROVINCE COUNTRY:** M5
- **BUSINESS PHONE:** 82-31-727-0114

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** KT GWANGHWAMUN BUILDING EAST,
- **STREET 2:** 33 JONGNO-3-GIL, JONGNO-GU,
- **CITY:** SEOUL, 110-130, KOREA M5
- **PROVINCE COUNTRY:** M5
- **ZIP:** 110-130

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KOREA TELECOM CORP
- **DATE OF NAME CHANGE:** 19971006

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KOREA TELECOM
- **DATE OF NAME CHANGE:** 19950130

##### [**Table of Contents**](#toc)
**SECURITIES AND EXCHANGE COMMISSION** 

**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 December 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 of principal executive offices)** 

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

Form 20-F ☒ Form 40-F ☐

------

##### [**Table of Contents**](#toc)
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: December 1, 2025 | Dated: December 1, 2025 |
| KT Corporation | KT Corporation |
| By: | /s/ Jaegil Choi |
| Name: Jaegil Choi | Name: Jaegil Choi |
| Title: IRO | Title: IRO |
| By: | /s/ Sanghyun Cho |
| Name: Sanghyun Cho | Name: Sanghyun Cho |
| Title: IR Team Leader | Title: IR Team Leader |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Financial Statements** 

**September 30, 2025 and 2024, and December 31, 2024** 

**ATTACHMENT: INDEPENDENT AUDITOR'S REVIEW REPORT** 

**KT Corporation** 

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Index** 

**September 30, 2025 and 2024, and December 31, 2024** 

---

| | |
|:---|:---|
|  | **Page(s)** |
|  **[Report on Review of Consolidated Interim Financial Statements](#tx40561_1)** | 1-2 |
|  **Consolidated Interim Financial Statements** |  |
|  [Consolidated Interim Statements of Financial Position](#tx40561_3) | 3-4 |
|  [Consolidated Interim Statements of Profit or Loss](#tx40561_4) | 5 |
|  [Consolidated Interim Statements of Comprehensive Income](#tx40561_5) | 6 |
|  [Consolidated Interim Statements of Changes in Equity](#tx40561_6) | 7-8 |
|  [Consolidated Interim Statements of Cash Flows](#tx40561_7) | 9-10 |
|  [Notes to the Consolidated Interim Financial Statements](#tx40561_8) | 11-77 |

---

------

##### [**Table of Contents**](#toc)

---

| | |
|:---|:---|
| ![LOGO](g40561dsp3.jpg) | **Deloitte Anjin LLC**<br>9F., One IFC,<br> 10, Gukjegeumyung-ro,<br> Youngdeungpo-gu, Seoul<br> 07326, Korea<br>Tel: +82 (2) 6676 1000<br> Fax: +82 (2) 6674 2114<br> www.deloitteanjin.co.kr |

---

**Independent Auditor's Review Report** 

[English Translation of Independent Auditor's Review Report Originally Issued in Korean on November 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 September 30, 2025, and the related consolidated interim statements of profit or loss and comprehensive income for the three-month and nine-month periods ended September 30, 2025 and 2024, and changes in equity and cash flows for the nine-month periods ended September 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.

------

##### [**Table of Contents**](#toc)
![LOGO](g40561dsp4.jpg)

**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 September 30, 2025, and its financial performance and its cash flows for the nine-month periods ended September 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](g40561dsp4a.jpg)

Seoul, Korea

November 14, 2025

<u>Notice to Readers</u> 

This review report is effective as of November 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.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Financial Position** 

**As of September 30, 2025 and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Notes** | **September 30,<br>2025** | **September 30,<br>2025** | **December 31,<br>2024** | **December 31,<br>2024** |
|  **Assets** |  |  |  |  |  |
|  **Current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash and cash equivalents | 429 | W | 3890295 | W | 3716680 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables, net | 4529 |  | 6577177 |  | 6147456 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets | 4629 |  | 1500341 |  | 1344248 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current tax assets |  |  | 3456 |  | 1213 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Inventories, net | 7 |  | 443844 |  | 940209 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other current assets | 8 |  | 2708446 |  | 2102131 |
|  Total current assets |  |  | 15123559 |  | 14251937 |
|  **Non-current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables, net | 4529 |  | 1889761 |  | 1540727 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets | 4629 |  | 3028400 |  | 2759170 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Property and equipment, net | 9 |  | 14121140 |  | 14825814 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Right-of-use assets | 16 |  | 1181920 |  | 1212770 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Investment properties, net | 9 |  | 2814140 |  | 2299616 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Intangible assets, net | 9 |  | 1665531 |  | 1862740 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Investments in associates and joint ventures | 10 |  | 1588684 |  | 1562232 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred tax assets |  |  | 624742 |  | 671609 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Net defined benefit assets | 14 |  | 55867 |  | 49351 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other non-current assets | 8 |  | 919009 |  | 843991 |
|  Total non-current assets |  |  | 27889194 |  | 27628020 |
|  **Total assets** |  | W | 43012753 | W | 41879957 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Financial Position** 

**As of September 30, 2025 and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Notes** | **September 30,<br>2025** | **September 30,<br>2025** | **December 31,<br>2024** | **December 31,<br>2024** |
|  **Liabilities** |  |  |  |  |  |
|  **Current liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other payables | 41129 | W | 7770546 | W | 7394791 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | 41229 |  | 2454053 |  | 3904752 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities | 4629 |  | 446765 |  | 351632 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current tax liabilities |  |  | 244046 |  | 123145 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other provisions | 1315 |  | 112289 |  | 112530 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred income | 19 |  | 65297 |  | 62247 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other current liabilities | 4816 |  | 1130652 |  | 1925637 |
|  Total Current Liabilities |  |  | 12223648 |  | 13874734 |
|  **Non-current liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other payables | 41129 |  | 386557 |  | 578409 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | 41229 |  | 8078209 |  | 6615938 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities | 4629 |  | 638605 |  | 722517 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Net defined benefit liabilities | 14 |  | 294090 |  | 128457 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other provisions | 13 |  | 106486 |  | 111877 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred income | 19 |  | 207099 |  | 148960 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred tax liabilities |  |  | 1037318 |  | 919996 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other non-current liabilities | 4816 |  | 780805 |  | 782520 |
|  Total non-current liabilities |  |  | 11529169 |  | 10008674 |
|  **Total liabilities** |  |  | 23752817 |  | 23883408 |
|  **Equity attribute to owners of the controlling company** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share capital |  |  | 1564499 |  | 1564499 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share premium |  |  | 1440258 |  | 1440258 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Retained earnings | 17 |  | 14986181 |  | 13779776 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Accumulated other comprehensive income |  |  | 344701 |  | 63729 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other components of equity | 18 |  | (884719) |  | (637560) |
|  |  |  | 17450920 |  | 16210702 |
|  **Non-controlling interest** |  |  | 1809016 |  | 1785847 |
|  **Total equity** |  |  | 19259936 |  | 17996549 |
|  **Total liabilities and equity** |  | W | 43012753 | W | 41879957 |

---

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

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Profit or Loss** 

**For the three-month and nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  |  | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** |
| *(In millions of Korean won, except per share amounts)* | **Notes** | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** | **2024** |
|  |  | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** |
|  **Operating revenue** | 1927 | W | 7126734 | W | 21399188 | W | 6654615 | W | 19855588 |
|  **Operating expenses** | 20 |  | 6588553 |  | 19157418 |  | 6190505 |  | 18390992 |
|  **Operating profit** | 27 |  | 538181 |  | 2241770 |  | 464110 |  | 1464596 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other income | 21 |  | 86267 |  | 160913 |  | 89476 |  | 269773 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other expenses | 21 |  | 26252 |  | 100163 |  | 40416 |  | 158815 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Finance income | 22 |  | 30171 |  | 506401 |  | (53679) |  | 414953 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Finance costs | 22 |  | 31642 |  | 532948 |  | (51513) |  | 401011 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of net profits (losses) of associates and joint ventures | 10 |  | (3286) |  | 4225 |  | (1937) |  | 5268 |
|  **Profit before income tax** |  |  | 593439 |  | 2280198 |  | 509067 |  | 1594764 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Income tax expense | 23 |  | 148186 |  | 534864 |  | 125896 |  | 408049 |
|  **Profit for the period** |  | W | 445253 | W | 1745334 | W | 383171 | W | 1186715 |
|  **Profit for the period attributable to:** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Owners of the Controlling Company |  | W | 391542 | W | 1619322 | W | 357341 | W | 1125896 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-controlling interests |  |  | 53711 |  | 126012 |  | 25830 |  | 60819 |
|  **Earnings per share attributable to the equity holders of the Controlling Company during the period (in Korean won):** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Basic earnings per share | 24 | W | 1621 | W | 6643 | W | 1453 | W | 4575 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Diluted earnings per share | 24 |  | 1620 |  | 6639 |  | 1451 |  | 4572 |

---

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

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Comprehensive Income** 

**For the three-month and nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** |
| *(In millions of Korean won)* | **Notes** | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** | **2024** |
|  |  | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** |
|  **Profit for the period** |  | W | 445253 | W | 1745334 | W | 383171 | W | 1186715 |
|  **Other comprehensive income (loss)** |  |  |  |  |  |  |  |  |  |
|  **Items that will not be reclassified to profit or loss:** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements of the net defined benefit liabilities | 14 |  | 788 |  | 1706 |  | 187 |  | (461) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of remeasurement of the net defined benefit liabilities of associates and joint ventures |  |  | (205) |  | 51 |  | 292 |  | (404) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on equity instruments at fair value through other comprehensive income | 6 |  | 105936 |  | 252363 |  | (63914) |  | 166887 |
|  **Items that are or may be subsequently reclassified to profit or loss:** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on cash flow hedges | 6 |  | 136928 |  | (33350) |  | (84705) |  | 56731 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other comprehensive income from cash flow hedges reclassified to profit or loss |  |  | (119573) |  | 67395 |  | 104363 |  | (48581) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of other comprehensive income of associates and joint ventures |  |  | (1201) |  | 4437 |  | 1340 |  | 6257 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exchange differences on translation of foreign operations |  |  | 3514 |  | (33168) |  | (14994) |  | 31412 |
|  **Other comprehensive income (loss) for the period, net of tax** |  |  | 126187 |  | 259434 |  | (57431) |  | 211841 |
|  **Total comprehensive income for the period** |  | W | 571440 | W | 2004768 | W | 325740 | W | 1398556 |
|  **Total comprehensive income for the period attributable to:** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Owners of the Controlling Company |  | W | 519615 | W | 1901911 | W | 310546 | W | 1322361 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-controlling interests |  |  | 51825 |  | 102857 |  | 15194 |  | 76195 |

---

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

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Changes in Equity** 

**For the nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | | | | |
| *(In millions of Korean won)* | **Notes** | **Share<br>capital** | **Share<br>capital** | **Share<br>premium** | **Share<br>premium** | **Retained<br>earnings** | **Retained<br>earnings** | **Accumulated<br>other**<br> **comprehensive<br>income** | **Accumulated<br>other**<br> **comprehensive<br>income** | **Other<br>components<br>of equity** | **Other<br>components<br>of equity** | **Total** | **Total** | **Non**<br> **controlling<br>interest** | **Non**<br> **controlling<br>interest** | **Total Equity** | **Total Equity** |
|  **Balance as of January 1, 2024** |  | W | 1564499 | W | 1440258 | W | 14494430 | W | 52407 | W | (802418) | W | 16749176 | W | 1811961 | W | 18561137 |
|  **Comprehensive income** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Profit for the period |  |  |  |  |  |  | 1125896 |  |  |  |  |  | 1125896 |  | 60819 |  | 1186715 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements of net defined benefit liabilities | 14 |  |  |  |  |  | 798 |  |  |  |  |  | 798 |  | (1259) |  | (461) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of remeasurement of the net defined benefit liabilities of associates and joint ventures |  |  |  |  |  |  | (219) |  |  |  |  |  | (219) |  | (185) |  | (404) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of other comprehensive income of associates and joint ventures |  |  |  |  |  |  |  |  | 5406 |  |  |  | 5406 |  | 851 |  | 6257 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on cash flow hedges | 6 |  |  |  |  |  |  |  | 8631 |  |  |  | 8631 |  | (481) |  | 8150 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains on financial instruments at fair value through other comprehensive income | 6 |  |  |  |  |  | (11046) |  | 177511 |  |  |  | 166465 |  | 422 |  | 166887 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exchange differences on translation of foreign operations |  |  |  |  |  |  |  |  | 15384 |  |  |  | 15384 |  | 16028 |  | 31412 |
|  **Total comprehensive income for the period** |  |  |  |  |  |  | 1115429 |  | 206932 |  |  |  | 1322361 |  | 76195 |  | 1398556 |
|  **Transactions with owners** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid by the Controlling Company |  |  |  |  |  |  | (482970) |  |  |  |  |  | (482970) |  |  |  | (482970) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interim dividends paid by the Controlling Company |  |  |  |  |  |  | (245772) |  |  |  |  |  | (245772) |  |  |  | (245772) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid to non-controlling interest of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (20642) |  | (20642) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Change in Consolidation Scope |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (796) |  | (796) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Change in ownership interests in subsidiaries |  |  |  |  |  |  |  |  |  |  | (15333) |  | (15333) |  | 13032 |  | (2301) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisition of treasury stock |  |  |  |  |  |  |  |  |  |  | (27100) |  | (27100) |  |  |  | (27100) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposal of treasury stock |  |  |  |  |  |  |  |  |  |  | 3760 |  | 3760 |  |  |  | 3760 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Retirement of treasury stocks |  |  |  |  |  |  | (205956) |  |  |  | 205956 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  |  |  |  |  |  |  |  |  | 140 |  | 140 |  | 2391 |  | 2531 |
|  **Subtotal** |  |  |  |  |  |  | (934698) |  |  |  | 167423 |  | (767275) |  | (6015) |  | (773290) |
|  **Balance as at September 30, 2024** |  | W | 1564499 | W | 1440258 | W | 14675161 | W | 259339 | W | (634995) | W | 17304262 | W | 1882141 | W | 19186403 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Changes in Equity** 

**For the nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | **Attributable to owners of the Controlling Company** | | | | |
| *(In millions of Korean won)* | **Notes** | **Share<br>capital** | **Share<br>capital** | **Share<br>premium** | **Share<br>premium** | **Retained<br>earnings** | **Retained<br>earnings** | **Accumulated<br>other**<br> **comprehensive<br>income** | **Accumulated<br>other**<br> **comprehensive<br>income** | **Other<br>components<br>of equity** | **Other<br>components<br>of equity** | **Total** | **Total** | **Non**<br> **controlling<br>interest** | **Non**<br> **controlling<br>interest** | **Total Equity** | **Total Equity** |
|  **Balance as of January 1, 2025** |  | W | 1564499 | W | 1440258 | W | 13779776 | W | 63729 | W | (637560) | W | 16210702 | W | 1785847 | W | 17996549 |
|  **Comprehensive income** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Profit for the period |  |  |  |  |  |  | 1619322 |  |  |  |  |  | 1619322 |  | 126012 |  | 1745334 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements of net defined benefit liabilities | 14 |  |  |  |  |  | 2133 |  |  |  |  |  | 2133 |  | (427) |  | 1706 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of remeasurement of the net defined benefit liabilities of associates and joint ventures |  |  |  |  |  |  | 53 |  |  |  |  |  | 53 |  | (2) |  | 51 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of other comprehensive income of associates and joint ventures |  |  |  |  |  |  |  |  | 5192 |  |  |  | 5192 |  | (755) |  | 4437 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on cash flow hedges | 6 |  |  |  |  |  |  |  | 33969 |  |  |  | 33969 |  | 76 |  | 34045 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains on financial instruments at fair value through other comprehensive income | 6 |  |  |  |  |  | (569) |  | 253748 |  |  |  | 253179 |  | (816) |  | 252363 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exchange differences on translation of foreign operations |  |  |  |  |  |  |  |  | (11937) |  |  |  | (11937) |  | (21231) |  | (33168) |
|  **Total comprehensive income for the period** |  |  |  |  |  |  | 1620939 |  | 280972 |  |  |  | 1901911 |  | 102857 |  | 2004768 |
|  **Transactions with owners** |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid by the Parent Company |  |  |  |  |  |  | (122836) |  |  |  |  |  | (122836) |  |  |  | (122836) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interim dividends paid by the Parent Company |  |  |  |  |  |  | (291641) |  |  |  |  |  | (291641) |  |  |  | (291641) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid to non-controlling interest of subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (18672) |  | (18672) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Change in Consolidation Scope |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (60177) |  | (60177) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Change in ownership interests in subsidiaries |  |  |  |  |  |  |  |  |  |  | 728 |  | 728 |  | (7011) |  | (6283) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Appropriation of retained earnings related to loss on disposal of treasury stock |  |  |  |  |  |  | (57) |  |  |  | 57 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisition of treasury stock |  |  |  |  |  |  |  |  |  |  | (250000) |  | (250000) |  |  |  | (250000) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposal of treasury stock |  |  |  |  |  |  |  |  |  |  | 4075 |  | 4075 |  |  |  | 4075 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  |  |  |  |  |  |  |  |  | (2019) |  | (2019) |  | 6172 |  | 4153 |
|  **Subtotal** |  |  |  |  |  |  | (414534) |  |  |  | (247159) |  | (661693) |  | (79688) |  | (741381) |
|  **Balance as of September 30, 2025** |  | W | 1564499 | W | 1440258 | W | 14986181 | W | 344701 | W | (884719) | W | 17450920 | W | 1809016 | W | 19259936 |

---

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

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Cash Flows** 

**For the nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** |
| *(In millions of Korean won)* | **Notes** | **2025** | **2025** | **2024** | **2024** |
|  **Cash flows from operating activities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash generated from operations | 25 | W | 4230200 | W | 4666069 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest paid |  |  | (320637) |  | (318999) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest received |  |  | 263957 |  | 288572 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends received |  |  | 60077 |  | 64036 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Income tax paid |  |  | (283425) |  | (299624) |
|  **Net cash inflow from operating activities** |  |  | 3950172 |  | 4400054 |
|  **Cash flows from investing activities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Collection of loans |  |  | 25643 |  | 25761 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of financial assets at fair value through profit or loss |  |  | 61053 |  | 102893 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of financial assets at amortized cost |  |  | 598067 |  | 1342264 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of financial assets at fair value through other comprehensive income |  |  | 3343 |  | 34300 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of investments in associates and joint ventures |  |  | 13205 |  | 17881 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of property, equipment and investment properties |  |  | 34674 |  | 36069 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of intangible assets |  |  | 5598 |  | 6306 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of right-of-use assets |  |  | 688 |  | 118 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of derivatives |  |  | 4256 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in cash due to consolidation scope change |  |  | 176993 |  | 9847 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loans granted |  |  | (44723) |  | (25122) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of financial assets at fair value through profit or loss |  |  | (55549) |  | (145665) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of financial assets at amortized cost |  |  | (776790) |  | (656222) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of financial assets at fair value through other comprehensive income |  |  | (100000) |  | (1000) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of investments in associates and joint ventures |  |  | (21242) |  | (44200) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of property and equipment and investment properties |  |  | (2702917) |  | (2023026) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of intangible assets |  |  | (406557) |  | (393359) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of right-of-use assets |  |  | (175) |  | (14670) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in cash due to consolidation scope change |  |  | (3) |  | (10310) |
|  **Net cash outflow from investing activities** |  | W | (3184436) | W | (1738135) |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Consolidated Interim Statements of Cash Flows** 

**For the nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** |
| *(In millions of Korean won)* | **Notes** | **2025** | **2025** | **2024** | **2024** |
|  **Cash flows from financing activities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Proceeds from borrowings |  | W | 5159306 | W | 2920442 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash inflow from derivatives contracts |  |  | 132775 |  | 1118 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash inflow from transactions with non-controlling shareholders |  |  | 1534 |  | 1128 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash inflow from other financing activities |  |  | 28912 |  | 800 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Repayments of borrowings |  |  | (4921132) |  | (3434719) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid |  |  | (433149) |  | (749384) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash outflow from derivatives contracts |  |  | (5632) |  | (855) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in finance lease liabilities |  |  | (298468) |  | (266463) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisition of treasury stock |  |  | (250000) |  | (27100) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash outflow from transactions with non-controlling shareholders |  |  | (3764) |  | (31827) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash outflow from other financing activities |  |  | (675) |  | (531) |
|  **Net cash outflow from financing activities** |  |  | (590293) |  | (1587391) |
|  **Effect of exchange rate change on cash and cash equivalents** |  |  | (1828) |  | (189) |
|  **Net increase (decrease) in cash and cash equivalents** |  |  | 173615 |  | 1074339 |
|  **Cash and cash equivalents** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Beginning of the period |  |  | 3716680 |  | 2879554 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; End of the period |  | W | 3890295 | W | 3953893 |

---

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

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**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 79 subsidiaries (collectively referred to as the "Group") including BC Card Co., Ltd., etc. as described in Note 1.2

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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 the 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 September 30, 2025, the Korean government does not own any shares in the Controlling Company.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.2** **Consolidated Subsidiaries** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The consolidated subsidiaries as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | | | **Controlling Interest <sup>1</sup> (%)** | **Controlling Interest <sup>1</sup> (%)** | |
| <br>**Subsidiary** | <br>**Type of business** | <br>**Location** | **September 30,<br>2025** | **December 31,<br>2024** | <br>**Closing<br>month** |
|  KT Telecop Co., Ltd. | Security service | Korea | 92.7% | 92.7% | December |
|  KT Alpha Co., Ltd. <sup>4</sup>  | 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. <sup>4</sup>  | 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. <sup>4</sup>  | 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. <sup>4</sup>  | 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 (formerly. GENIE Music Corporation) <sup>2</sup>  | Online music production and distribution | Korea | 36.0% | 36.0% | December |
|  KT MOS Bukbu Co., Ltd. <sup>4</sup>  | Telecommunication facility maintenance | Korea | 100.0% | 100.0% | December |
|  KT MOS Nambu Co., Ltd. <sup>4</sup>  | Telecommunication facility maintenance | Korea | 98.4% | 98.4% | December |
|  KT Skylife Co., Ltd. <sup>4</sup>  | Satellite TV | Korea | 50.5% | 50.5% | December |
|  KT ENA Co., Ltd. (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. (formerly. Nasmedia, Co., Ltd.) <sup>2,4</sup>  | 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 <sup>2,4</sup>  | Database and online information provider | Korea | 34.1% | 34.1% | December |
|  KTIS Corporation <sup>2,4</sup>  | 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 |
|  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 |

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | | | **Controlling Interest <sup>1</sup> (%)** | **Controlling Interest <sup>1</sup> (%)** | |
| <br>**Subsidiary** | <br>**Type of business** | <br>**Location** | **September 30,<br>2025** | **December 31,<br>2024** | <br>**Closing<br>month** |
|  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 maintenance | Korea | 100.0% | 100.0% | December |
|  KT Studio Genie Co., Ltd. | Data communication service and data communication construction business | Korea | 90.9% | 90.9% | December |
|  KTHS Corporation (formerly. KHS Corporation) | Operation and maintenance of facilities | Korea | 100.0% | 100.0% | December |
|  kt HCN Co., Ltd. (formerly. HCN Co., Ltd.) | Cable television service | Korea | 100.0% | 100.0% | December |
|  kt Millie Seojae (formerly. Millie Seojae) <sup>2</sup>  | Book contents service | Korea | 38.4% | 38.7% | December |
|  KT ES Pte. Ltd. | Foreign investment business | Singapore | 68.8% | 68.8% | December |
|  Epsilon Global Communications PTE. Ltd. | Network service industry | Singapore | 100.0% | 100.0% | December |
|  Epsilon Telecommunications (SP) PTE. Ltd. | Fixed line telecommunication business | Singapore | 100.0% | 100.0% | December |
|  Epsilon Telecommunications (US) PTE. Ltd. | Fixed line telecommunication business | Singapore | 100.0% | 100.0% | December |
|  Epsilon Telecommunications Limited | Fixed line telecommunication business | UK | 100.0% | 100.0% | December |
|  Epsilon Telecommunications (HK) Limited | Fixed line telecommunication business | Hong Kong | 100.0% | 100.0% | December |
|  Epsilon US Inc. | Fixed line telecommunication business | USA | 100.0% | 100.0% | December |
|  Epsilon Telecommunications (BG) EOOD | Employee support service | Bulgaria | 100.0% | 100.0% | December |
|  Nasmedia-KT Alpha Future Growth 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 (formerly. Altimedia Corporation) | Software development and delivery | Korea | 100.0% | 100.0% | December |
|  KT Altimidia B.V. (formerly. Altimidia B.V.) | Software development and delivery | Netherlands | 100.0% | 100.0% | December |
|  KT Altimidia Vietnam (formerly. Altimidia Vietnam) | Software development and delivery | Vietnam | 100.0% | 100.0% | December |
|  BCCARD VIETNAM LTD. | Software sales business | Vietnam | 100.0% | 100.0% | December |
|  KTP SERVICES INC. | Fixed line telecommunication business | Philippines | 100.0% | 100.0% | December |
|  KT RUS LLC | Foreign investment business | Russia | 100.0% | 100.0% | December |
|  Hangang Real Estate Investment Trust No. 24 | Investment fund | Korea | 75.0% | 75.0% | December |
|  KT DX VIETNAM COMPANY LIMITED | Software development | Vietnam | 100.0% | 100.0% | December |
|  KT Cloud Co., Ltd. | Information and communications development | Korea | 92.6% | 92.7% | December |
|  PT CRANIUM ROYAL ADITAMA | Software development | Indonesia | 67.0% | 67.0% | December |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | | | **Controlling Interest <sup>1</sup> (%)** | **Controlling Interest <sup>1</sup> (%)** | |
| <br>**Subsidiary** | <br>**Type of business** | <br>**Location** | **September 30,<br>2025** | **December 31,<br>2024** | <br>**Closing<br>month** |
|  Open cloud lab Co., Ltd | IT consulting service and Telecommunication 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 No. 1 <sup>3</sup>  | 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 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 |
|  Seongsu269 Development PFV Co, Ltd | Investment fund | Korea | 90.9% |  | December |

---

<sup>1</sup> Sum of the interests owned by the Controlling Company and subsidiaries. 

<sup>2</sup> Although the Controlling Company owns less than 50% of the interest in kt Nasmedia, Co., Ltd. (formerly. 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 majority of voting rights in its decision-making process at all times, based on voting patterns at previous shareholders' meetings. 

<sup>3</sup> Although the Controlling Company owns less than 50% of the interest in 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 profit', and 'relationship between power and variable profit', rather than simply judging by the interests owned by the Controlling Company. 

<sup>4</sup> The number of treasury stock held by subsidiaries are deducted from the total number of shares when calculating the controlling percentage interest. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in Scope of Consolidation

Subsidiaries newly included and excluded in the consolidation during the nine-month period ended September 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 |
| Included | Korea | Seongsu269 Development PFV Co, Ltd | Newly established |
| Included | Korea | Townboard Co., Ltd. | Split-off |
| Excluded | Korea | Townboard Co., Ltd. | Shares disposed |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) Summarized information for consolidated subsidiaries as of September 30, 2025 and December 31, 2024
and for the nine-month periods ended September 30, 2025 and 2024, is as follows

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **Nine-month period ended**<br>**September 30, 2025 <sup>4</sup>** | **Nine-month period ended**<br>**September 30, 2025 <sup>4</sup>** |
|  | **Total assets** | **Total assets** | **Total liabilities** | **Operating<br>revenues** | **Profit (loss) for<br>the period** |
|  KT Telecop Co., Ltd. | W | 431190 | 267982 | 438249 | 16311 |
|  KT Alpha Co., Ltd. |  | 482904 | 183614 | 292912 | 36880 |
|  KT Service Bukbu Co., Ltd. |  | 52776 | 53560 | 173269 | (643) |
|  KT Service Nambu Co., Ltd. |  | 104180 | 114822 | 284483 | (11453) |
|  BC Card Co., Ltd. <sup>1</sup>  |  | 7569585 | 5649887 | 2700040 | 135522 |
|  H&C Network |  | 12245 | 4687 | 20778 | (186) |
|  kt Nasmedia, Co., Ltd. (formerly. Nasmedia, Co., Ltd.) <sup>3</sup>  |  | 383619 | 185102 | 88607 | 7389 |
|  KTDS Co., Ltd. <sup>3</sup>  |  | 283376 | 124829 | 493095 | 28524 |
|  KT M&S Co., Ltd. |  | 271358 | 187211 | 588561 | 16135 |
|  KT MOS Bukbu Co., Ltd. |  | 53792 | 35597 | 74793 | (55) |
|  KT MOS Nambu Co., Ltd. |  | 53191 | 29001 | 76263 | 1158 |
|  KT Skylife Co., Ltd. <sup>1</sup>  |  | 989861 | 406249 | 737039 | 24804 |
|  KT Estate Inc. <sup>1</sup>  |  | 3173183 | 1497535 | 484573 | 12725 |
|  KT GDH Co., Ltd. |  | 7968 | 1222 | 2521 | 210 |
|  KT Sat Co., Ltd. |  | 697979 | 34027 | 146708 | 23283 |
|  KT Sports Co., Ltd. |  | 48979 | 17819 | 82294 | 15299 |
|  KT M Mobile Co., Ltd. |  | 222441 | 91498 | 292041 | 10361 |
|  KT Investment Co., Ltd. <sup>1</sup>  |  | 73070 | 41921 | 4352 | 3502 |
|  KTCS Corporation <sup>1</sup>  |  | 463587 | 242540 | 752189 | 22619 |
|  KTIS Corporation |  | 462985 | 222336 | 465234 | 34114 |
|  Next Connect PFV |  | 997016 | 310218 | 1146472 | 391428 |
|  KT Japan Co., Ltd. <sup>1</sup>  |  | 2326 | 3769 | 2519 | 105 |
|  KT America, Inc. |  | 6701 | 461 | 5770 | 357 |
|  KT Rwanda Networks Ltd. <sup>2</sup>  |  | 114088 | 146302 | 15272 | (15585) |
|  AOS Ltd. <sup>2</sup>  |  | 15683 | 18637 | 8798 | 1769 |
|  KT Hong Kong Telecommunications Co., Ltd. |  | 9536 | 2091 | 8985 | 333 |
|  KT Huimangjieum <sup>1</sup>  |  | 12601 | 4664 | 14076 | 1370 |
|  KT Engineering Co., Ltd. |  | 112157 | 56708 | 171858 | (4490) |
|  KT Studio Genie Co., Ltd. <sup>1</sup>  |  | 887898 | 203749 | 351856 | 12951 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **Nine-month period ended**<br>**September 30, 2025 <sup>4</sup>** | **Nine-month period ended**<br>**September 30, 2025 <sup>4</sup>** |
|  | **Total assets** | **Total liabilities** | **Operating<br>revenues** | **Profit (loss) for<br>the period** |
|  East Telecom LLC <sup>1</sup>  | 86185 | 39390 | 30923 | 8528 |
|  KT ES Pte. Ltd. <sup>1</sup>  | 72189 | 62240 | 72986 | (4124) |
|  KTP SERVICES INC. | 2216 | 18 | 65 | (146) |
|  kt Altimedia Corporation (formerly. Altimedia Corporation)<sup>1</sup>  | 40851 | 8863 | 25318 | 262 |
|  KT RUS LLC | 382 |  |  | (149) |
|  KT DX VIETNAM COMPANY LIMITED | 1323 | 140 | 611 | (155) |
|  KT Cloud Co., Ltd. <sup>1</sup>  | 2215223 | 646016 | 719606 | 47731 |
|  K-Realty Qualified Private Real Estate Investment Trust No. 1 | 77665 | 50190 | 3445 | (964) |
|  AQUA RETAIL VIETNAM COMPANY LIMITED | 744 | 34 | 526 | (600) |
|  kt netcore. Co. Ltd. | 139513 | 105977 | 439748 | (27600) |
|  kt p&m Co. Ltd. | 27478 | 17944 | 48228 | (394) |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **Nine-month period ended**<br>**September 30, 2024 <sup>4</sup>** | **Nine-month period ended**<br>**September 30, 2024 <sup>4</sup>** |
|  | **Total assets** | **Total assets** | **Total liabilities** | **Operating<br>revenues** | **Profit (loss) for<br>the period** |
|  KT Linkus Co., Ltd. | W | 54247 | 55750 | 59353 | (1088) |
|  KT Telecop Co., Ltd. |  | 400437 | 253509 | 394574 | 8925 |
|  KT Alpha Co., Ltd. |  | 464180 | 201902 | 313705 | 17013 |
|  KT Service Bukbu Co., Ltd. |  | 56706 | 56846 | 167224 | (7485) |
|  KT Service Nambu Co., Ltd. |  | 57827 | 51826 | 211795 | (7402) |
|  BC Card Co., Ltd. <sup>1</sup>  |  | 5961047 | 4196724 | 2844618 | 129288 |
|  H&C Network |  | 59808 | 5039 | 19822 | 1446 |
|  kt Nasmedia, Co., Ltd. (formerly. Nasmedia, Co., Ltd.) <sup>1</sup>  |  | 492782 | 252707 | 103451 | 16482 |
|  KTDS Co., Ltd. <sup>1</sup>  |  | 388812 | 179630 | 508481 | 31643 |
|  KT M&S Co., Ltd. |  | 261539 | 193526 | 617918 | 11597 |
|  KT MOS Bukbu Co., Ltd. |  | 50262 | 32012 | 74685 | 1653 |
|  KT MOS Nambu Co., Ltd. |  | 51458 | 28427 | 75525 | 2676 |
|  KT Skylife Co., Ltd. <sup>1</sup>  |  | 1040188 | 463594 | 765940 | 1484 |
|  KT Estate Inc. <sup>1</sup>  |  | 2617662 | 947834 | 438999 | 15138 |
|  KT GDH Co., Ltd. |  | 7998 | 1462 | 3087 | 253 |
|  KT Sat Co., Ltd. |  | 733574 | 92877 | 135511 | 23474 |
|  KT Sports Co., Ltd. |  | 23299 | 7435 | 69323 | 9840 |
|  KT Music Contents Fund No.2 |  | 5508 | 1589 | 89 | 44 |
|  KT M Mobile Co., Ltd. |  | 195196 | 74570 | 255684 | 7418 |
|  KT Investment Co., Ltd. <sup>1</sup>  |  | 84369 | 56721 | 6816 | 1554 |
|  KTCS Corporation <sup>1</sup>  |  | 435066 | 232129 | 842040 | 3178 |
|  KTIS Corporation |  | 469932 | 261826 | 453036 | 9822 |
|  Next Connect PFV |  | 1429260 | 1133891 |  | (6460) |
|  KT Japan Co., Ltd. <sup>1</sup>  |  | 1750 | 3289 | 2310 | 254 |
|  KT America, Inc. |  | 6843 | 614 | 5657 | 199 |
|  KT Rwanda Networks Ltd. <sup>2</sup>  |  | 131362 | 341313 | 16435 | (12427) |
|  AOS Ltd. <sup>2</sup>  |  | 14305 | 19422 | 7907 | 1666 |
|  KT Hong Kong Telecommunications Co., Ltd. |  | 9105 | 1680 | 14241 | 591 |
|  KT Huimangjieum <sup>1</sup>  |  | 8854 | 2275 | 13073 | 1538 |
|  KT Engineering Co., Ltd. |  | 183753 | 123132 | 184986 | (2686) |
|  KT Studio Genie Co., Ltd. <sup>1</sup>  |  | 880509 | 212683 | 326651 | 13 |
|  East Telecom LLC <sup>1</sup>  |  | 75828 | 40371 | 26097 | 4804 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **Nine-month period ended**<br>**September 30, 2024 <sup>4</sup>** | **Nine-month period ended**<br>**September 30, 2024 <sup>4</sup>** |
|  | **Total assets** | **Total liabilities** | **Operating<br>revenues** | **Profit (loss) for<br>the period** |
|  KT ES Pte. Ltd. <sup>1</sup>  | 78800 | 59114 | 69998 | (9422) |
|  KTP SERVICES INC. | 3257 | 750 | 497 | 118 |
|  kt Altimedia Corporation (formerly. Altimedia Corporation) <sup>1</sup>  | 45287 | 11919 | 25592 | (897) |
|  KT RUS LLC | 420 |  |  | (91) |
|  KT DX VIETNAM COMPANY LIMITED | 1568 | 120 | 284 | (236) |
|  KT Cloud Co., Ltd. <sup>1</sup>  | 2061020 | 542569 | 562204 | 36344 |
|  K-Realty Qualified Private Real Estate Investment Trust No. 1 | 79220 | 50681 | 3182 | (975) |
|  AQUA RETAIL VIETNAM COMPANY LIMITED | 1903 | 497 | 351 | (620) |
|  kt netcore Co. Ltd. | 61213 | 79 |  |  |
|  kt p&m Co. Ltd | 10029 | 96 |  |  |

---

<sup>1</sup> As intermediate controlling companies, financial information from their consolidated financial statements is presented.

<sup>2</sup> Convertible preferred stock issued by subsidiaries as of the end of the reporting period is included in liabilities.

<sup>3</sup> Profit or loss of subsidiary that was disposed of during the current period, from the beginning of the reporting period to the date of loss of control, is reflected.

<sup>4</sup> Profit or loss of companies newly included in consolidated financial statements from the acquisition date of control to the end of the reporting period is included.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**2.** **Material Accounting Policies** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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 nine-month period ended September 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.2** **Changes in Accounting Policy and Disclosures** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

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

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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• K-IFRS 1110 *Consolidated Financial Statements* - 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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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.

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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**4.** **Financial Instruments by Category** 

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

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| **Financial assets** | **Financial assets<br>at amortized<br>cost** | **Financial assets<br>at amortized<br>cost** | **Financial<br>assets at<br>FVTPL** | **Financial<br>assets at<br>FVOCI** | **Derivatives**<br> **used for<br>hedging** | **Total** |
|  Cash and cash equivalents | W | 3890295 |  |  |  | 3890295 |
|  Trade and other receivables |  | 8254975 |  | 211963 |  | 8466938 |
|  Other financial assets |  | 1022231 | 1176185 | 2107610 | 222715 | 4528741 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| **Financial liabilities** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities at<br>FVTPL** | **Derivatives<br>used for<br>hedging** | **Others** | **Total** |
|  Trade and other payables <sup>1</sup>  | W | 7587448 |  |  |  | 7587448 |
|  Borrowings |  | 10532262 |  |  |  | 10532262 |
|  Other financial liabilities |  | 972598 | 106146 | 6626 |  | 1085370 |
|  Lease liabilities |  |  |  |  | 1055587 | 1055587 |
| <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. | <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. | <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. | <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. | <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. | <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. | <br> <sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Financial assets** | **Financial assets<br>at amortized<br>cost** | **Financial assets<br>at amortized<br>cost** | **Financial<br>assets at<br>FVTPL** | **Financial<br>assets at<br>FVOCI** | **Derivatives**<br> **used for<br>hedging** | **Total** |
|  Cash and cash equivalents | W | 3716680 |  |  |  | 3716680 |
|  Trade and other receivables |  | 7573409 |  | 114774 |  | 7688183 |
|  Other financial assets |  | 962653 | 1029926 | 1665368 | 445471 | 4103418 |
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Financial liabilities** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities at<br>FVTPL** | **Derivatives<br>used for<br>hedging** | **Others** | **Total** |
|  Trade and other payables <sup>1</sup>  | W | 7214174 |  |  |  | 7214174 |
|  Borrowings |  | 10520690 |  |  |  | 10520690 |
|  Other financial liabilities |  | 942135 | 132011 | 3 |  | 1074149 |
|  Lease liabilities |  |  |  |  | 1059453 | 1059453 |

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<sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. 

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**5.** **Trade and Other Receivables** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Trade and other receivables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Total amounts** | **Total amounts** | **Provision for<br>impairment** | **Present value<br>discount** | **Carrying<br>amount** |
|  **Current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 3626919 | (388827) | (7833) | 3230259 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 3448267 | (99261) | (2088) | 3346918 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 7075186 | (488088) | (9921) | 6577177 |
|  **Non-current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 291867 | (1298) | (14229) | 276340 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 1714131 | (90570) | (10140) | 1613421 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 2005998 | (91868) | (24369) | 1889761 |
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Total amounts** | **Total amounts** | **Provision for<br>impairment** | **Present value<br>discount** | **Carrying<br>amount** |
|  **Current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 3309177 | (378327) | (9011) | 2921839 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 3335066 | (107653) | (1796) | 3225617 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 6644243 | (485980) | (10807) | 6147456 |
|  **Non-current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 260154 | (1299) | (14977) | 243878 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 1405923 | (96941) | (12133) | 1296849 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1666077 | (98240) | (27110) | 1540727 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of other receivables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Loans | W | 61559 | 42413 |
|  Receivables <sup>1</sup>  |  | 2857385 | 2913728 |
|  Accrued income |  | 59837 | 40950 |
|  Refundable deposits |  | 239580 | 264054 |
|  Loans receivable |  | 1652765 | 1209887 |
|  Finance lease receivables |  | 212155 | 202372 |
|  Others |  | 66889 | 53656 |
|  Less: Provision for impairment |  | (189831) | (204594) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 4960339 | 4522466 |

---

<sup>1</sup> As of September 30, 2025, credit sales asset of W 2,018,307 million (December 31, 2024: W 1,970,895 million) held by BC Card Co., Ltd. are included.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 September 30, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) The Group classifies a certain portion of 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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**6.** **Other Financial Assets and Liabilities** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of other financial assets and liabilities as of September 30, 2025 and December 31, 2024, are
as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  **Other financial assets** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at amortized cost <sup>1</sup>  | W | 1022231 | 962653 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profits or loss <sup>1,2</sup>  |  | 1176185 | 1029926 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 2107610 | 1665368 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivatives used for hedging |  | 222715 | 445471 |
|  Less: Non-current |  | (3028400) | (2759170) |
|  Current | W | 1500341 | 1344248 |
|  **Other financial liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at amortized cost <sup>3,4</sup>  | W | 972598 | 942135 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profits or loss |  | 106146 | 132011 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivatives used for hedging |  | 6626 | 3 |
|  Less: Non-current |  | (638605) | (722517) |
|  Current | W | 446765 | 351632 |

---

<sup>1</sup> As of September 30, 2025, the Group's financial instruments amount to W 105,844 million (December 31, 2024: W 97,913 million) and consist of checking account deposits, time deposits, and others which are subject to withdrawal restrictions. 

<sup>2</sup> As of September 30, 2025, the Group provided investments in Korea Software Financial Cooperative and others 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. 

<sup>3</sup> The amount includes liabilities related to the obligation to acquire additional shares in Epsilon Global Communications Pte. Ltd. and KT Cloud Co., Ltd. (Note 15). 

<sup>4</sup> The amount includes liabilities convertible preferred Stock issued by KT Cloud Co., Ltd. (Note 15). 

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Equity instruments (Listed) | W | 3085 | 5620 |
|  Equity instruments (Unlisted) |  | 45934 | 47227 |
|  Debt instruments |  | 1127166 | 971805 |
|  Derivatives held for trading |  |  | 5274 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  | 1176185 | 1029926 |
|  Less: Non-current |  | (782724) | (826708) |
|  Current | W | 393461 | 203218 |

---

2) The maximum exposure to credit risks for debt instruments of financial assets at fair value through profit or loss is the carrying amount of each class of debt instruments above as of September 30, 2025. 

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Equity instruments (Listed) | W | 1662164 | 1317458 |
|  Equity instruments (Unlisted) |  | 439161 | 341753 |
|  Debt instruments |  | 6285 | 6157 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  | 2107610 | 1665368 |
|  Less: Non-current |  | (2107610) | (1665368) |
|  Current | W |  |  |

---

2) Upon disposal of these equity investments, any balance within the accumulated other comprehensive income is 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. 

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Derivatives used for Hedging

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  | **Assets** | **Assets** | **Liabilities** | **Assets** | **Liabilities** |
|  Interest rate swap | W | 600 |  | 352 | 3 |
|  Currency swap <sup>1</sup>  |  | 222115 | 6626 | 445119 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  | 222715 | 6626 | 445471 | 3 |
|  Less: Non-current |  | (124262) | (6626) | (261719) |  |
|  Current | W | 98453 |  | 183752 | 3 |

---

<sup>1</sup> The currency swap contract is to hedge the risk of variability in cash flow from the borrowings due to changes 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 nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* |
|  | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
| **Type of transaction** | **Valuation<br>gain** | **Valuation<br>gain** | **Valuation<br>loss** | **Other<br>comprehensive<br>loss<sup>1</sup>** | **Valuation<br>gain** | **Valuation<br>loss** | **Other<br>comprehensive<br>loss<sup>1</sup>** |
|  Interest rate swap | W | 9 | 98 | 281 | 62 |  | (785) |
|  Currency swap |  | 12428 | 93442 | 45238 | 65857 | 2677 | 11731 |
|  Total | W | 12437 | 93540 | 45519 | 65919 | 2677 | 10946 |

---

<sup>1</sup> The amounts are before adjustments for deferred income tax and allocations to 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 W 44,851 million as other comprehensive income for the year ended September 30, 2025 (for the nine-month period ended September 30, 2024: valuation gains of W 75,859 million). The ineffective portion recognized in profit or loss related to cash flow hedges amounts to valuation gains of W 634 million as current profit or loss for the year ended September 30, 2025 (for the nine-month period ended September 30, 2024: W 1,608 million). In addition, the valuation loss reclassified from other comprehensive income to profit or loss amounts to W 90,370 million for the year ended September 30, 2025 (for the nine-month period ended September 30, 2024: valuation gains of W 64,913 million). 

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Derivatives held for trading <sup>1</sup>  | W | 106146 | 132011 |

---

<sup>1</sup> The Group signed a shareholder-to-share agreement with financial investors participating in the paid-in capital increase of K Bank Inc. for the nine-month period ended September 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 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 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 nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
|  | **Valuation<br>gain** | **Valuation<br>gain** | **Valuation<br>loss** | **Valuation<br>loss** | **Valuation<br>gain** | **Valuation<br>gain** | **Valuation<br>loss** |
|  Derivatives liabilities held for trading | W | 27164 |  | 1679 |  | 11098 |  |

---

**7.** **Inventories** 

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

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* |
|  | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Acquisition<br>cost** | **Acquisition<br>cost** | **Valuation<br>allowance** | **Carrying<br>amount** | **Acquisition<br>cost** | **Valuation<br>allowance** | **Carrying<br>amount** |
|  Merchandise | W | 474540 | (38098) | 436442 | 1003127 | (99517) | 903610 |
|  Others |  | 7402 |  | 7402 | 37123 | (524) | 36599 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 481942 | (38098) | 443844 | 1040250 | (100041) | 940209 |

---

Cost of inventories recognized as expenses for the nine-month period ended September 30, 2025 amounts to W 3,272,984 million (for the nine-month periods ended September 30, 2024: W 2,628,976 million) and reversal valuation loss on inventory amounts to W 61,943 million for the nine-month period ended September 30, 2025 (for the nine-month periods ended September 30, 2024: W 22,041 million).

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**8.** **Other Assets and Liabilities** 

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  **Other assets** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Advance payments | W | 202164 | 217679 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prepaid expenses |  | 332397 | 170544 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Contract cost |  | 2079928 | 1738164 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Contract assets |  | 978366 | 800806 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 34600 | 18929 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Non-current |  | (919009) | (843991) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current | W | 2708446 | 2102131 |
|  **Other liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Advances received <sup>1</sup>  | W | 345608 | 1151499 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Withholdings |  | 160467 | 154355 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Unearned revenue <sup>1</sup>  |  | 54534 | 38327 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Lease liabilities |  | 1055587 | 1059453 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Contract liabilities |  | 261477 | 273320 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 33784 | 31203 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Non-current |  | (780805) | (782520) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current | W | 1130652 | 1925637 |

---

<sup>1</sup> The amounts include adjustments arising from adoption of Korean IFRS 1115 *Revenue from Contracts with Customers* (Note 19). 

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**9.** **Property and Equipment, Investment Properties, and Intangible Assets** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Changes in property and equipment for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning, net | W | 14825814 | 14872079 |
|  Acquisition and capital expenditure |  | 1611453 | 1862339 |
|  Disposal and termination |  | (58026) | (51418) |
|  Depreciation |  | (2129900) | (2107814) |
|  Transfer from investment properties |  | 122457 | 1052 |
|  Changes in consolidation scope |  | (3644) | (1326) |
|  Others <sup>1</sup>  |  | (247014) | (65762) |
|  Ending, net | W | 14121140 | 14509150 |

---

<sup>1</sup> Amounts include transfers to intangible assets. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in investment properties for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning, net | W | 2299616 | 2198135 |
|  Acquisition and capital expenditure |  | 690236 | 112709 |
|  Disposal |  |  | (1772) |
|  Depreciation |  | (51029) | (39286) |
|  Transfer to property and equipment |  | (122457) | (1052) |
|  Changes in consolidation scope |  | (3401) |  |
|  Others |  | 1175 | (1208) |
|  Ending, net | W | 2814140 | 2267526 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) As of September 30, 2025, the Group (Lessor) has entered into a non-cancellable operating lease contract for real estate. The future minimum lease payments under this contract amount to W 113,874 million for one year or less, W 122,475 million for more than one year and less than five years, W 12,235 million for over five years, and W 248,584 million in total.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Changes in intangible assets for the nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning, net | W | 1862740 | 2533861 |
|  Acquisition and capital expenditure <sup>1</sup>  |  | 310713 | 147984 |
|  Disposal and termination |  | (11505) | (14266) |
|  Amortization |  | (457048) | (494165) |
|  Impairment |  | (802) | (857) |
|  Changes in consolidation scope |  | (34653) | (9370) |
|  Others |  | (3914) | 21748 |
|  Ending, net | W | 1665531 | 2184935 |

---

<sup>1</sup> Amounts include transfers from property and equipment. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) The carrying amount of intangible assets with indefinite useful lives, including membership rights (except for
goodwill), that are not subject to amortization, is W 200,822 million as of September 30, 2025 (December 31, 2024: W 203,227 million).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) Goodwill is allocated to the Group's cash-generating units, which are identified by operating segments.
As of September 30, 2025, the goodwill allocated to each cash-generation unit is as follows:

---

| | | |
|:---|:---|:---|
| *(In millions of Korean won)* |  |  |
| **Cash-Generating Unit** | **Amount** | **Amount** |
|  Mobile services | W | 65057 |
|  BC Card Co., Ltd. |  | 41234 |
|  KT GENIE Music Corporation(formerly. GENIE Music Corporation) |  | 38258 |
|  kt Millie Seojae(formerly. Millie Seojae) |  | 54725 |
|  KT Telecop Co., Ltd. |  | 15418 |
|  KT MOS Bukbu Co., Ltd. and others |  | 32604 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 247296 |

---

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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**10.** **Investments in Associates and Joint Ventures** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of associates as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Percentage of ownership (%)** | **Percentage of ownership (%)** | **Location** | **Closing month** |
| | **September 30,**<br> **2025** | **December 31,**<br> **2024** | | |
|  KIF Investment Fund | 33.3% | 33.3% | Korea | December |
|  K Bank Inc. | 33.7% | 33.7% | Korea | December |
|  HD Hyundai Robotics Co., Ltd. <sup>1</sup>  | 10.0% | 10.0% | Korea | December |
|  Megazone Cloud Corporation <sup>1</sup>  | 6.8% | 6.8% | Korea | December |
|  IGIS No. 468-1 General Private Real Estate Investment 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 |

---

<sup>1</sup> Although the Group holds less than 20% interest in ordinary shares as of September 30, 2025, these entities are included in investments in associates as the Group exerts significant influence over operational and financial policies. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in investments in associates and joint ventures for the nine-month period ended September 30, 2025
and 2024, are as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
| *(In millions of Korean won)* | **Beginning** | **Beginning** | **Acquisition**<br> **(Disposal)** | **Share of net profit<br>(loss) from<br>associates and joint<br>ventures <sup>1</sup>** | **Others** | **Ending** |
|  KIF Investment Fund | W | 191125 |  | 849 | (1366) | 190608 |
|  K Bank Inc. |  | 917641 |  | 30558 | (2154) | 946045 |
|  HD Hyundai Robotics Co., Ltd. |  | 45830 |  | (1098) | 1057 | 45789 |
|  Megazone Cloud Corporation |  | 130773 |  | (1062) | 2883 | 132594 |
|  IGIS No. 468-1 General Private Real Estate Investment Company |  | 23374 |  | (84) |  | 23290 |
|  KT-DSC Creative Economy Youth Start-up Investment Fund |  | 15951 | (650) | 1438 | (700) | 16039 |
|  IGIS Professional Investors Private Investment Real Estate Investment LLC No 395 |  | 9727 |  | (2749) |  | 6978 |
|  Others <sup>1</sup>  |  | 227811 | 15578 | (15957) | (91) | 227341 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1562232 | 14928 | 11895 | (371) | 1588684 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
| *(In millions of Korean won)* | **Beginning** | **Beginning** | **Acquisition**<br> **(Disposal)** | **Share of net profit<br>(loss) from<br>associates and joint<br>ventures <sup>1</sup>** | **Others** | **Ending** |
|  KIF Investment Fund | W | 177054 |  | 617 | 983 | 178654 |
|  K Bank Inc. |  | 872881 |  | 40088 | 3456 | 916425 |
|  HD Hyundai Robotics Co., Ltd. |  | 47734 |  | 574 | (685) | 47623 |
|  Megazone Cloud Corporation |  | 131694 |  | (2236) | 1365 | 130823 |
|  IGIS No. 468-1 General Private Real Estate Investment Company |  | 23484 |  | (56) |  | 23428 |
|  KT-DSC Creative Economy Youth Start-up Investment Fund |  | 25117 | (275) | (6726) | (845) | 17271 |
|  IGIS Professional Investors Private Investment Real Estate Investment LLC No 395 |  | 11942 |  | (1734) |  | 10208 |
|  LS Marine Solution Co., Ltd. |  | 23492 | (19656) | 237 | (4073) |  |
|  Others <sup>1</sup>  |  | 243491 | 40441 | (28375) | (964) | 254593 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1556889 | 20510 | 2389 | (763) | 1579025 |

---

<sup>1</sup> KT Investment Co., Ltd., a subsidiary of the Group, recognized net profit (loss) in the investments in associates as operating income. Net loss recognized as operating income for the nine-months period ended September 30, 2025 amount to W 271 million (nine-month period ended September 30, 2024: net loss of W 216 million). 

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

(3) Summarized statements of financial position of the major associates and joint ventures as of September 30,
2025 and December 31, 2024 and summarized statements of profit or loss for the nine-month period ended September 30, 2025 and 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Assets** | **Assets** | **Liabilities** | **Operating<br>revenue** | **Profit (loss)<br>for the period** |
|  KIF Investment Fund | W | 571822 |  | 10698 | 2547 |
|  K Bank Inc. |  | 33269134 | 31076918 | 999897 | 103379 |
|  HD Hyundai Robotics Co., Ltd. |  | 354517 | 103791 | 182327 | (11007) |
|  Megazone Cloud Corporation |  | 1672398 | 1048663 | 1217766 | (3423) |
|  IGIS No. 468-1 General Private Real Estate Investment Company |  | 52176 | 6 |  | (189) |
|  KT-DSC Creative Economy Youth Start-up Investment Fund |  | 56549 | 414 | 6719 | 3368 |
|  IGIS Professional Investors Private Investment Real Estate Investment LLC No 395 |  | 201542 | 178400 |  | (1744) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **September 30, 2024** | **September 30, 2024** |
|  | **Assets** | **Assets** | **Liabilities** | **Operating<br>revenue** | **Profit (loss)<br>for the period** |
|  KIF Investment Fund | W | 573376 |  | 12407 | 1850 |
|  K Bank Inc |  | 31191682 | 29187152 | 875824 | 122419 |
|  HD Hyundai Robotics Co., Ltd. |  | 356541 | 105722 | 166702 | 3872 |
|  Megazone Cloud Corporation |  | 1456061 | 860488 | 1226033 | (12575) |
|  IGIS No. 468-1 General Private Real Estate Investment Company |  | 52370 | 11 | 4 | (126) |
|  KT-DSC Creative Economy Youth Start-up Investment Fund |  | 56231 | 404 | 3994 | (21230) |
|  IGIS Professional Investors Private Investment Real Estate Investment LLC No 395 |  | 175328 | 133665 |  | (333) |

---

(4) Due to discontinuance of equity method of accounting, the Group has not recognized loss from associates and
joint ventures of W 5,447 million for the nine-month period September 30, 2025 (nine-month period ended September 30, 2024: W 1,053 million). The unrecognized accumulated comprehensive loss of
associates and joint ventures as of September 30, 2025 is W 12,712 million (December 31, 2024: W 7,942 million).

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**11.** **Trade and Other Payables** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of trade and other payables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  **Current liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade payables | W | 1145345 | 1036707 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other payables |  | 6625201 | 6358084 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 7770546 | 7394791 |
|  **Non-current liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade payables |  | 665 | 1035 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other payables | W | 385892 | 577374 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 386557 | 578409 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of other payables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Non-trade payables <sup>1</sup>  | W | 3698078 | 4578424 |
|  Accrued expenses |  | 1604075 | 1293627 |
|  Operating deposits |  | 1451705 | 833482 |
|  Others |  | 257235 | 229925 |
|  Less: non-current |  | (385892) | (577374) |
|  Current | W | 6625201 | 6358084 |

---

<sup>1</sup> As of September 30, 2025, credit sale liabilities amounting to W 1,773,257 million (December 31, 2024: W 1,612,495 million) held by BC Card Co., Ltd. (a subsidiary of the Group) are included. 

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**12.** **Borrowings** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of borrowings as of September 30, 2025 and December 31, 2024, are as follows:

**1)** **Debentures** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest**<br> **rates** | **Foreign<br>currency** | **Korean<br>won** | **Korean<br>won** | **Foreign<br>currency** | **Korean<br>won** | **Korean<br>won** |
|  MTNP notes <sup>1</sup> | Sep. 07, 2034 | 6.500% | USD 100,000 | W | 140220 | USD 100,000 | W | 147000 |
|  MTNP notes | Jul. 18, 2026 | 2.500% | USD 400,000 |  | 560880 | USD 400,000 |  | 588000 |
|  MTNP notes | Sep. 01, 2025 |  |  |  |  | USD 400,000 |  | 588000 |
|  MTNP notes | Jan. 21, 2027 | 1.375% | USD 300,000 |  | 420660 | USD 300,000 |  | 441000 |
|  MTNP notes | Aug. 08, 2025 |  |  |  |  | USD 500,000 |  | 735000 |
|  MTNP notes | Feb. 02, 2028 | 4.125% | USD 500,000 |  | 701100 | USD 500,000 |  | 735000 |
|  MTNP notes | Mar. 05, 2027 | 1.217% | JPY 23,300,000 |  | 219889 |  |  |  |
|  MTNP notes | Mar. 07, 2028 | 1.367% | JPY 6,700,000 |  | 63230 |  |  |  |
|  MTNP notes | Jan. 03, 2029 | 4.375% | USD 500,000 |  | 701100 |  |  |  |
|  FR notes <sup>2</sup> | Sep. 29, 2028 | Compounded SOFR(3M)<br> +0.660% | USD 200,000 |  | 280440 |  |  |  |
|  The 183-3rd Public bond | Dec. 22, 2031 | 4.270% |  |  | 160000 |  |  | 160000 |
|  The 184-3rd Public bond | Apr. 10, 2033 | 3.170% |  |  | 100000 |  |  | 100000 |
|  The 186-4th Public bond | Jun. 26, 2034 | 3.695% |  |  | 100000 |  |  | 100000 |
|  The 187-4th Public bond | Sep. 02, 2034 | 3.546% |  |  | 100000 |  |  | 100000 |
|  The 188-2nd Public bond | Jan. 29, 2025 |  |  |  |  |  |  | 240000 |
|  The 188-3rd Public bond | Jan. 29, 2035 | 2.706% |  |  | 50000 |  |  | 50000 |
|  The 189-3rd Public bond | Jan. 28, 2026 | 2.203% |  |  | 100000 |  |  | 100000 |
|  The 189-4th Public bond | Jan. 28, 2036 | 2.351% |  |  | 70000 |  |  | 70000 |
|  The 190-3rd Public bond | Jan. 30, 2028 | 2.947% |  |  | 170000 |  |  | 170000 |
|  The 190-4th Public bond | Jan. 30, 2038 | 2.931% |  |  | 70000 |  |  | 70000 |
|  The 191-3rd Public bond | Jan. 15, 2029 | 2.160% |  |  | 110000 |  |  | 110000 |
|  The 191-4th Public bond | Jan. 14, 2039 | 2.213% |  |  | 90000 |  |  | 90000 |
|  The 192-3rd Public bond | Oct. 11, 2029 | 1.622% |  |  | 50000 |  |  | 50000 |
|  The 192-4th Public bond | Oct. 11, 2039 | 1.674% |  |  | 110000 |  |  | 110000 |
|  The 193-2nd Public bond | Jun. 17, 2025 |  |  |  |  |  |  | 70000 |
|  The 193-3rd Public bond | Jun. 17, 2030 | 1.608% |  |  | 20000 |  |  | 20000 |
|  The 193-4th Public bond | Jun. 15, 2040 | 1.713% |  |  | 60000 |  |  | 60000 |
|  The 194-2nd Public bond | Jan. 27, 2026 | 1.452% |  |  | 140000 |  |  | 140000 |
|  The 194-3rd Public bond | Jan. 27, 2031 | 1.849% |  |  | 50000 |  |  | 50000 |
|  The 194-4th Public bond | Jan. 25, 2041 | 1.976% |  |  | 80000 |  |  | 80000 |
|  The 195-2nd Public bond | Jun. 10, 2026 | 1.806% |  |  | 80000 |  |  | 80000 |
|  The 195-3rd Public bond | Jun. 10, 2031 | 2.168% |  |  | 40000 |  |  | 40000 |
|  The 196-1st Public bond | Jan. 27, 2025 |  |  |  |  |  |  | 270000 |
|  The 196-2nd Public bond | Jan. 27, 2027 | 2.637% |  |  | 100000 |  |  | 100000 |
|  The 196-3rd Public bond | Jan. 27, 2032 | 2.741% |  |  | 30000 |  |  | 30000 |
|  The 197-1st Public bond | Jun. 27, 2025 |  |  |  |  |  |  | 280000 |
|  The 197-2nd Public bond | Jun. 29, 2027 | 4.188% |  |  | 120000 |  |  | 120000 |
|  The 198-1st Public bond | Jan. 10, 2025 |  |  |  |  |  |  | 70000 |
|  The 198-2nd Public bond | Jan. 12, 2026 | 3.869% |  |  | 150000 |  |  | 150000 |
|  The 198-3rd Public bond | Jan. 12, 2028 | 3.971% |  |  | 80000 |  |  | 80000 |
|  The 199-1st Public bond | Jul. 11, 2025 |  |  |  |  |  |  | 85000 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest<br>rates** | **Foreign<br>currency** | **Korean<br>won** | **Foreign<br>currency** | **Korean<br>won** |
|  The 199-2nd Public bond | Jul. 10, 2026 | 4.146% |  | 160000 |  | 160000 |
|  The 199-3rd Public bond | Jul. 12, 2028 | 4.221% |  | 155000 |  | 155000 |
|  The 200-1st Public bond | Feb. 27, 2026 | 3.552% |  | 120000 |  | 120000 |
|  The 200-2nd Public bond | Feb. 26, 2027 | 3.608% |  | 200000 |  | 200000 |
|  The 200-3rd Public bond | Feb. 27, 2029 | 3.548% |  | 80000 |  | 80000 |
|  The 201-1st Public bond | Dec. 02, 2027 | 2.899% |  | 130000 |  | 130000 |
|  The 201-2nd Public bond | Dec. 02, 2029 | 2.918% |  | 70000 |  | 70000 |
|  The 201-3rd Public bond | Dec. 02, 2034 | 3.057% |  | 100000 |  | 100000 |
|  The 18-2nd unsecured bond | Jul. 02, 2026 | 2.224% |  | 50000 |  | 50000 |
|  The 19-1st unsecured bond | Jun. 12, 2027 | 3.691% |  | 50000 |  | 50000 |
|  The 19-2nd unsecured bond | Jun. 12, 2029 | 3.783% |  | 50000 |  | 50000 |
|  The 149-2nd Won-denominated unsecured bond | Mar. 10, 2026 | 1.756% |  | 30000 |  | 30000 |
|  The 152-2nd Won-denominated unsecured bond | Aug. 28, 2026 | 1.982% |  | 20000 |  | 20000 |
|  The 154th Won-denominated unsecured bond | Jan. 23, 2025 |  |  |  |  | 40000 |
|  The 155-3rd Won-denominated unsecured bond | Feb. 28, 2025 |  |  |  |  | 20000 |
|  The 156-1st Won-denominated unsecured bond | Mar. 25, 2025 |  |  |  |  | 60000 |
|  The 156-2nd Won-denominated unsecured bond <sup>2</sup> | Mar. 25, 2032 | 10Y CMS+0.965% |  | 40000 |  | 40000 |
|  The 158th Won-denominated unsecured bond | Jan. 27, 2025 |  |  |  |  | 50000 |
|  The 159-2nd Won-denominated unsecured bond | Aug. 11, 2027 | 4.505% |  | 30000 |  | 30000 |
|  The 160-3rd Won-denominated unsecured bond | Dec. 12, 2025 | 5.769% |  | 30000 |  | 30000 |
|  The 161-3rd Won-denominated unsecured bond | Jun. 20, 2025 |  |  |  |  | 30000 |
|  The 161-4th Won-denominated unsecured bond | Dec. 22, 2025 | 5.615% |  | 10000 |  | 10000 |
|  The 163-1st Won-denominated unsecured bond | Feb. 20, 2026 | 4.059% |  | 20000 |  | 20000 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest<br>rates** | **Foreign<br>currency** | **Korean<br>won** | **Foreign<br>currency** | **Korean<br>won** |
|  The 163-2nd Won-denominated unsecured bond | Feb. 22, 2028 | 4.311% |  | 80000 |  | 80000 |
|  The 164-3rd Won-denominated unsecured bond | Apr. 14, 2028 | 4.220% |  | 30000 |  | 30000 |
|  The 165-1st Won-denominated unsecured bond | May. 09, 2025 |  |  |  |  | 30000 |
|  The 165-2nd Won-denominated unsecured bond | Nov. 09, 2026 | 3.932% |  | 10000 |  | 10000 |
|  The 165-3rd Won-denominated unsecured bond | May. 07, 2027 | 3.972% |  | 30000 |  | 30000 |
|  The 166-2nd Won-denominated unsecured bond | Apr. 22, 2025 |  |  |  |  | 40000 |
|  The 166-3rd Won-denominated unsecured bond | May. 21, 2025 |  |  |  |  | 10000 |
|  The 166-4th Won-denominated unsecured bond | May. 22, 2025 |  |  |  |  | 40000 |
|  The 167-2nd Won-denominated unsecured bond | Jan. 22, 2025 |  |  |  |  | 50000 |
|  The 167-3rd Won-denominated unsecured bond | Feb. 21, 2025 |  |  |  |  | 10000 |
|  The 167-4th Won-denominated unsecured bond | Dec. 22, 2025 | 3.858% |  | 10000 |  | 10000 |
|  The 168-1st Won-denominated unsecured bond | Jun. 05, 2025 |  |  |  |  | 40000 |
|  The 168-2nd Won-denominated unsecured bond | Aug. 06, 2025 |  |  |  |  | 70000 |
|  The 168-3rd Won-denominated unsecured bond | Oct. 02, 2025 | 3.724% |  | 40000 |  | 40000 |
|  The 169th Won-denominated unsecured bond | Apr. 04, 2025 |  |  |  |  | 50000 |
|  The 170th Won-denominated unsecured bond | Jun. 12, 2026 | 3.688% |  | 50000 |  | 50000 |
|  The 171-1st Won-denominated unsecured bond | Jun. 11, 2027 | 3.330% |  | 20000 |  | 20000 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest<br>rates** | **Foreign<br>currency** | **Korean<br>won** | **Foreign<br>currency** | **Korean<br>won** |
|  The 171-2nd Won-denominated unsecured bond | Aug. 12, 2027 | 3.329% |  | 60000 |  | 60000 |
|  The 172-1st Won-denominated unsecured bond | Mar. 06, 2026 | 3.514% |  | 10000 |  | 10000 |
|  The 172-2nd Won-denominated unsecured bond | Mar. 09, 2026 | 3.514% |  | 40000 |  | 40000 |
|  The 172-3rd Won-denominated unsecured bond | Sep. 09, 2026 | 3.474% |  | 30000 |  | 30000 |
|  The 173-1st Won-denominated unsecured bond | Sep. 23, 2027 | 3.291% |  | 60000 |  | 60000 |
|  The 173-2nd Won-denominated unsecured bond | Sep. 24, 2027 | 3.291% |  | 50000 |  | 50000 |
|  The 173-3rd Won-denominated unsecured bond | Oct. 22, 2027 | 3.292% |  | 40000 |  | 40000 |
|  The 174th Won-denominated unsecured bond | Nov. 10, 2025 | 3.339% |  | 60000 |  | 60000 |
|  The 175-1st Won-denominated unsecured bond | Dec. 10, 2025 | 3.169% |  | 50000 |  | 50000 |
|  The 175-2nd Won-denominated unsecured bond | Dec. 10, 2027 | 3.101% |  | 50000 |  | 50000 |
|  The 176th Won-denominated unsecured bond | Dec. 18, 2026 | 3.134% |  | 70000 |  | 70000 |
|  The 177-1st Won-denominated unsecured bond | Jul. 09, 2027 | 3.097% |  | 70000 |  |  |
|  The 177-2nd Won-denominated unsecured bond | Jul. 12, 2027 | 3.097% |  | 70000 |  |  |
|  The 177-3rd Won-denominated unsecured bond | Jan. 09, 2029 | 3.115% |  | 30000 |  |  |
|  The 177-4th Won-denominated unsecured bond | Jan. 09, 2030 | 3.140% |  | 40000 |  |  |
|  The 178-1st Won-denominated unsecured bond | Feb. 28, 2029 | 3.026% |  | 50000 |  |  |
|  The 178-2nd Won-denominated unsecured bond | Feb. 28, 2030 | 3.087% |  | 30000 |  |  |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest<br>rates** | **Foreign<br>currency** | **Korean<br>won** | **Korean<br>won** | **Foreign<br>currency** | **Korean<br>won** | **Korean<br>won** |
|  The 179-1st Won-denominated unsecured bond | Sep. 23, 2027 | 3.013% |  |  | 10000 |  |  |  |
|  The 179-2nd Won-denominated unsecured bond | Sep. 24, 2027 | 3.013% |  |  | 40000 |  |  |  |
|  The 179-3rd Won-denominated unsecured bond | Mar. 24, 2028 | 3.038% |  |  | 50000 |  |  |  |
|  The 179-4th Won-denominated unsecured bond | Mar. 25, 2030 | 3.126% |  |  | 20000 |  |  |  |
|  The 179-5th Won-denominated unsecured bond | Sep. 25, 2030 | 3.178% |  |  | 20000 |  |  |  |
|  The 180-1st Won-denominated unsecured bond | Apr. 03, 2028 | 2.989% |  |  | 90000 |  |  |  |
|  The 180-2nd Won-denominated unsecured bond | Apr. 04, 2028 | 2.989% |  |  | 70000 |  |  |  |
|  The 180-3rd Won-denominated unsecured bond | Apr. 04, 2029 | 3.026% |  |  | 40000 |  |  |  |
|  The 181-1st Won-denominated unsecured bond | Nov. 22, 2027 | 2.730% |  |  | 80000 |  |  |  |
|  The 181-2nd Won-denominated unsecured bond | May. 22, 2028 | 2.781% |  |  | 100000 |  |  |  |
|  The 181-3rd Won-denominated unsecured bond | May. 22, 2029 | 2.851% |  |  | 40000 |  |  |  |
|  The 182-1st Won-denominated unsecured bond | Feb. 11, 2028 | 2.776% |  |  | 30000 |  |  |  |
|  The 182-2nd Won-denominated unsecured bond | Jun. 13, 2028 | 2.822% |  |  | 70000 |  |  |  |
|  The 183th Won-denominated unsecured bond | Aug. 22, 2028 | 2.798% |  |  | 80000 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Subtotal  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Subtotal  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Subtotal  |  |  | 8482519 |  |  | 9154000 |
|  Less: Current portion | Less: Current portion | Less: Current portion |  |  | (1759732) |  |  | (3073474) |
|  Discount on bonds | Discount on bonds | Discount on bonds |  |  | (24617) |  |  | (24177) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total  |  | W | 6698170 |  | W | 6056349 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

<sup>1</sup> As of September 30, 2025, the Controlling Company has outstanding notes in the amount of USD 100 million 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. 

<sup>2</sup> As of September 30, 2025, the interest rates for Daily SOFR and CMS (10Y) are approximately 4.240%, 2.773% respectively. 

2) Convertible bonds

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* |
| **Type** | **Issuance Date** | **Maturity** | **Annual**<br> **interest Rate** | **September 30,<br>2025** | **December 31,<br>2024** |
|  The 1st CB (Private) <sup>1</sup> | Jun. 5, 2020 | Jun. 5, 2025 |  | W | 8000 |
|  Redemption premium |  |  |  |  | 2267 |
|  Conversion rights adjustment |  |  |  |  | (580) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Subtotal |  |  |  |  | 9687 |
|  Less: Current portion |  |  |  |  | (9687) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  |  |  | W |  |

---

<sup>1</sup> Convertible bond was fully redeemed for the nine-month period ended September 30, 2025.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**3)** **Borrowings** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**a.** **Short-term borrowings** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* |  |  |  |  |  |  |
| **Type** | **Financial institution** | **Annual interest rates** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  |  |  | **Foreign**<br> **currency** | **Korean**<br> **won** | **Korean**<br> **won** | **Foreign**<br> **currency** | **Korean**<br> **won** | **Korean**<br> **won** |
|  Operational |  |  |  |  |  |  |  |  |
|  |  | 4.900%~5.430% |  | W | 13990 |  | W | 13990 |
|  | Shinhan Bank <sup>1</sup> | Term SOFR(3M)+1.580% | USD 35,000 |  | 49077 |  |  |  |
|  |  |  |  |  |  |  |  | 87000 |
|  |  | 2.740% |  |  | 70000 |  |  |  |
|  | Woori Bank |  |  |  |  |  |  | 141950 |
|  | Korea Development | 3.690%~4.830% |  |  | 33800 |  |  |  |
|  | Bank |  |  |  |  |  |  | 35000 |
|  | Industrial Bank of Korea | 4.270% |  |  | 6000 |  |  | 6000 |
|  | Hana Bank <sup>1</sup> | FB(6M)+1.988% |  |  | 5000 |  |  |  |
|  | KB SECURITIES |  |  |  |  |  |  | 120000 |
|  |  | 2.730% |  |  | 30000 |  |  |  |
|  | NongHyup Bank <sup>1</sup> | MOR(6M)+1.770% |  |  | 1000 |  |  |  |
|  |  |  |  |  |  |  |  | 14200 |
|  | Standard Chartered Bank |  |  |  |  |  |  | 32000 |
|  | Korea Investment & Securities | 2.730%~3.130% |  |  | 160000 |  |  |  |
|  | Kiwoom Securities Co., Ltd. | 3.130% |  |  | 10000 |  |  |  |
|  | Shinhan Securities Co., Ltd. | 2.880%~2.940% |  |  | 197390 |  |  |  |
|  | Daol Securities Co., Ltd | 2.600% |  |  | 97991 |  |  |  |
|  | BIVD | 6.400% | VND 4,360,375 |  | 232 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  |  |  | W | 674480 |  | W | 450140 |

---

<sup>1</sup> As of September 30, 2025, the interest rates for Term SOFR (3M), Financial Bond (6M), and MOR (6M) are 3.976 %, 2.566 %, and 2.560 %, respectively. 

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**b.** **Long-term borrowings** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and thousands of foreign currencies)* | *(In millions of Korean won and thousands of foreign currencies)* | *(In millions of Korean won and thousands of foreign currencies)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Financial institution** | **Type** | **Annual interest**<br> **rates** | **Foreign**<br> **currency** | **Korean**<br> **won** | **Korean**<br> **won** | **Foreign**<br> **currency** | **Korean**<br> **won** | **Korean**<br> **won** |
|  Export-Import<br>Bank of Korea | Inter-Korean<br> Cooperation Fund <sup>1</sup> | 1.000% |  | W | 493 |  | W | 987 |
|  CA-CIB | General loans | 3.020%~3.820% |  |  | 200000 |  |  | 100000 |
|  JPM | General loans |  |  |  |  |  |  | 100000 |
|  DBS | General loans | 2.980%~3.820% |  |  | 200000 |  |  | 100000 |
|  | General loans | 3.390% |  |  | 100000 |  |  | 100000 |
|  | General loans <sup>2</sup> | Term<br>SOFR(3M)+1.300% | USD 21,127 |  | 29624 | USD<br>21,127 |  | 31056 |
|  | General loans <sup>2</sup> | Term<br>SOFR(3M)+1.600% | USD 8,640 |  | 12115 | USD 8,910 |  | 13098 |
|  Shinhan Bank | General loans |  |  |  |  |  |  | 62398 |
|  | General loans | 4.300% |  |  | 16900 |  |  |  |
|  | General loans |  |  |  |  | USD<br>35,000 |  | 51450 |
|  | General loans <sup>2</sup> | EURIBOR(3M)+0.950% | EUR 6,900 |  | 11347 | EUR 6,900 |  | 10548 |
|  Woori Bank | PF loans <sup>2</sup> | CD(91D)+1.750% |  |  | 25526 |  |  | 26526 |
|  | General loans | 3.970% |  |  | 18000 |  |  |  |
|  Hi Investment & Securities | CP | 2.302% |  |  | 97104 |  |  | 95321 |
|  Korea Investment & Securities | CP |  |  |  |  |  |  | 78933 |
|  Korea Development Bank | General loans | 3.770% |  |  | 33000 |  |  | 33000 |
|  KDB Bank Uzbekistan | loans <sup>3</sup> | 23.000% | UZS 29,744,161 |  | 3569 | UZS<br>45,448,426 |  | 4999 |
|  | loans <sup>3</sup> | 10.300% | USD 5,446 |  | 7886 | USD 5,400 |  | 7725 |
|  NH Jayang | PF loans |  |  |  |  |  |  | 8366 |
|  Kyobo Life Insurance | PF loans |  |  |  |  |  |  | 44385 |
|  Standard Chartered Bank Korea | PF loans | 3.900% |  |  | 65000 |  |  |  |
|  | PF loans |  |  |  |  |  |  | 29590 |
|  Samsung Life Insurance | PF loans |  |  |  |  |  |  | 24658 |
|  | General loans | 4.750% |  |  | 8000 |  |  | 8000 |
|  Kookmin Bank | General loans <sup>2</sup> | CD(91D)+1.480% |  |  | 20000 |  |  |  |
|  NongHyup Bank | PF loans | 3.900% |  |  | 70000 |  |  |  |
|  Korea Investment Capital | PF loans | 8.000% |  |  | 10000 |  |  |  |
|  Korea Investment Savings Bank | PF loans | 8.000% |  |  | 6000 |  |  |  |
|  DHG The 1st Co., Ltd. | PF loans | 10.000% |  |  | 10000 |  |  |  |
|  Industrial Bank of Korea | PF loans | 3.900% |  |  | 65000 |  |  |  |
|  Kyongnam Bank and others | General loans | 4.300% |  |  | 31274 |  |  |  |
|  Hana Bank and others | PF loans | 4.700% |  |  | 359042 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Subtotal |  |  |  |  | 1399880 |  |  | 931040 |
|  Less: Current portion |  |  |  |  | (19841) |  |  | (371451) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  |  |  | W | 1380039 |  | W | 559589 |

---

<sup>1</sup> The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a 7-year grace period.

<sup>2</sup> As of September 30, 2025, the interest rates for TERM SOFR (3M), EURIBOR (3M), and CD (91D) are approximately 3.976%, 2.032% 2.570% respectively. 

<sup>3</sup> The general loans are repayable in installments over 3 years after a two-year grace period.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Repayment schedule of the Group's debentures and borrowings including the portion of current liabilities
as of September 30, 2025, is as follows:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* |
|  | **Bonds** | **Bonds** | **Bonds** | **Bonds** | **Borrowings** | **Borrowings** | **Borrowings** | **Total** |
|  | **In local<br>currency** | **In local<br>currency** | **In foreign<br>currency** | **Sub-**<br> **total** | **In local<br>currency** | **In foreign<br>currency** | **Sub-**<br> **total** |  |
|  Oct.1, 2025 ~ Sep.30, 2026 | W | 1200000 | 560880 | 1760880 | 633896 | 60425 | 694321 | 2455201 |
|  Oct.1, 2026 ~ Sep.30, 2027 |  | 990000 | 640549 | 1630549 | 1268318 | 41739 | 1310057 | 2940606 |
|  Oct.1, 2027 ~ Sep.30, 2028 |  | 1305000 | 1044770 | 2349770 | 33000 | 3818 | 36818 | 2386588 |
|  Oct.1, 2028 ~ Sep.30, 2029 |  | 400000 | 701100 | 1101100 |  | 3818 | 3818 | 1104918 |
|  After Oct.1, 2029 |  | 1500000 | 140220 | 1640220 | 25526 | 3819 | 29345 | 1669565 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 5395000 | 3087519 | 8482519 | 1960740 | 113619 | 2074359 | 10556878 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**13.** **Provisions** 

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** |
|  | **Litigation** | **Litigation** | **Restoration cost** | **Others** | **Total** |
|  **Beginning balance** | W | 21690 | 141761 | 60956 | 224407 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (transfer) |  | 27 | 2421 | 16502 | 18950 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Usage |  | (27) | (5411) | (14106) | (19544) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reversal |  | (100) | (774) | (447) | (1321) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  | (3717) |  | (3717) |
|  **Ending balance** | W | 21590 | 134280 | 62905 | 218775 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Current | W | (21590) | (28657) | (62042) | (112289) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-current |  |  | 105623 | 863 | 106486 |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** |
|  | **Litigation** | **Litigation** | **Restoration cost** | **Others** | **Total** |
|  **Beginning balance** | W | 29707 | 133159 | 59357 | 222223 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (transfer) |  | (194) | 9290 | 5295 | 14391 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Usage |  | (3389) | (1298) | (4901) | (9588) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reversal |  | (3102) | (627) | (941) | (4670) |
|  **Ending balance** | W | 23022 | 140524 | 58810 | 222356 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Current | W | (22990) | (23376) | (58678) | (105044) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-current |  | 32 | 117148 | 132 | 117312 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**14.** **Net Defined Benefit Liabilities (Assets)** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The amounts recognized in the statements of financial position as of September 30, 2025 and December 31,
2024, are determined as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Present value of defined benefit obligations | W | 2332222 | 2232898 |
|  Fair value of plan assets |  | (2093999) | (2153792) |
|  Liabilities | W | 294090 | 128457 |
|  Assets | W | 55867 | 49351 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in the defined benefit obligations for the nine-month period ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning | W | 2232898 | 2365793 |
|  Current service cost |  | 166996 | 165507 |
|  Interest expense |  | 48742 | 62965 |
|  Benefit paid |  | (108119) | (177901) |
|  Remeasurements on defined benefit obligations: |  | 4352 | 4108 |
|  Changes in scope of consolidation |  | (11308) | (422) |
|  Others |  | (1339) | 539 |
|  Ending | W | 2332222 | 2420589 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) Changes in the fair value of plan assets for the nine-month period ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning | W | 2153792 | 2462925 |
|  Interest income |  | 50432 | 68715 |
|  Remeasurements on plan assets: |  | (2836) | 1451 |
|  Employer contributions |  | 6763 | 7136 |
|  Benefits paid |  | (99383) | (168724) |
|  Changes in scope of consolidation |  | (11636) |  |
|  Others |  | (3133) | 36445 |
|  Ending | W | 2093999 | 2407948 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Amounts recognized in the consolidated statement of profit or loss for the nine-month period ended
September 30, 2025 and 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Current service cost | W | 166996 | 165507 |
|  Net interest expense |  | (1690) | (5750) |
|  Transfer out |  | (9698) | (11706) |
|  Total expenses | W | 155608 | 148051 |

---

**15.** **Commitments and Contingencies** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) As of September 30, 2025, major commitments with local financial institutions are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won and*<br> *foreign currencies in thousands)* | **Financial institution** | **Limit** | **Limit** | **Used amount** |
|  Bank overdraft | Kookmin Bank and others | W | 374000 |  |
|  Inter-Korean Cooperation Fund | Export-Import Bank of Korea |  | 37700 | 493 |
|  Economic Cooperation Business Insurance | Export-Import Bank of Korea |  | 3240 | 1732 |
|  Collateralized loan backed by electronic accounts receivable-trade | Kookmin Bank and others |  | 781100 | 216111 |
|  Plus electronic notes payable | Industrial Bank of Korea |  | 50000 | 995 |
|  Working capital loan | Korea Development Bank<br> and others |  | 1519590 | 260890 |
|  | Shinhan Bank |  | USD 64,767 | USD 64,767 |
|  | Woori Bank |  | EUR 6,900 | EUR 6,900 |
|  Facility loans | Shinhan Bank and others |  | 699500 | 627908 |
|  Derivatives transaction limit | Korea Development Bank and others |  | USD 1,920,000 | USD 1,920,000 |
|  | Shinhan Bank and others |  | JPY 30,000,000 | JPY 30,000,000 |
|  |  |  | KRW 3,465,130 | 1108129 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  |  | USD 1,984,767 | 1984767 |
|  |  |  | EUR 6,900 | 6900 |
|  |  |  | JPY 30,000,000 | 30000000 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) As of September 30, 2025, guarantees received from financial institutions are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won and*<br> *foreign currencies in thousands)* | **Financial institution** | **Limit** | **Limit** |
|  Hana Bank | Guarantee for payment in Korean currency |  | 4000 |
|  | Comprehensive credit line and others |  | 2900 |
|  | Comprehensive credit line and others | USD | 10300 |
|  Kookmin Bank | Guarantee for payment in foreign currency | USD | 3186 |
|  | Guarantee for payment in Korean currency |  | 754 |
|  | Refund guarantee for advances received | USD | 21550 |
|  Shinhan Bank | Guarantee for payment in foreign currency | USD | 76633 |
|  | Corporate card issuance guarantee | VND | 231830 |
|  | Guarantee for payment in Korean currency |  | 100 |
|  | Guarantee for payment in foreign currency | USD | 7000 |
|  Woori Bank | Performance guarantee and others | USD | 233 |
|  | Guarantee for payment in foreign currency | EUR | 6900 |
|  HSBC | Guarantees for depositions | USD | 1511 |
|  Seoul Guarantee Insurance Company | Performance guarantee and others |  | 426176 |
|  Korea Software Financial Cooperative | Performance guarantee and others |  | 1653243 |
|  Korea Specialty Contractor Financial Cooperative | Performance guarantee and others |  | 135 |
|  Korea Housing Finance Corporation | Performance guarantee and others |  | 25526 |
|  Information & Communication Financial Cooperative | Performance guarantee and others |  | 838233 |
|  Total | KRW |  | 2951067 |
|  | USD |  | 120413 |
|  | EUR |  | 6900 |
|  | VND |  | 231830 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) The Controlling Company is jointly and severally obligated with KT Sat Co., Ltd., a subsidiary, to pay KT Sat
Co., Ltd.'s liabilities incurred prior to spin-off. As of September 30, 2025, the Controlling Company and KT Sat Co., Ltd. are jointly and severally liable for reimbursement of W 428 million (as of December 31, 2024: W 433 million).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) For the nine-month period ended September 30, 2025, the Group entered into agreements with the
Securitization Specialty Companies (2025: First 5G 79th to 82nd Securitization Specialty Co., Ltd., 2024: First 5G 73rd to 78th Securitization Specialty Co., Ltd.) and disposed of its trade receivables related to handset sales. The Group also made
asset management agreements with each securitization specialty company and in accordance with the agreement, the Group will receive asset management fees upon liquidation of the securitization specialty company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) As of September 30, 2025, the Group is a defendant in 164 lawsuits with the total claimed amount of W 157,815 million (as of December 31, 2024: W 141,941 million). As of September 30, 2025, litigation provisions of W 21,590 million for pending lawsuits and unasserted 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 September 30, 2025 (Note 13).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) Under the agreement of bond issuance and borrowings, the Group is required to maintain certain financial ratios
such as debt-to-equity ratio, use the funds for the designated purpose and report to the creditors periodically. The covenant also contains restriction on provision of
additional collateral and disposal of certain assets.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) As of September 30, 2025, the Group participates in Algerie Sidi Abdela new town development consortium
(percentage of ownership: 2.5%) and has joint liability with other consortium participants.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8) As of September 30, 2025, the contract amount of properties and equipment, intangible assets and
investment properties acquisition agreement made but not yet recognized amounts to W 346,898 million (as of December 31, 2024: W 350,949 million).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9) As of September 30, 2025, there are derivatives generated by the Group granting Drag-Along Right to
financial investors participating in paid-in capital increase of K Bank Inc. (Note 6).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10) The Group entered into an agreement with financial investors of Epsilon Global Communications Pte 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 Tag-Along Right, Drag-Along Right,
and the right to sell shares for the convertible preferred shares they hold (Note 6).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11) The Group has an obligation for additional contributions as per agreement to Storm Ventures FUND VII and
others. As of September 30, 2025, remaining amounts of USD 27,650 thousand and JPY 160,000 thousand will be invested through the Capital Call method in the future.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12) During the operating period, the Group has an obligation of W 470,160 million (100%) to
provide financial support as an operating investor to K Defense Co., Ltd. established in accordance with the Private Investment Act on Social Infrastructure.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13) The Group has an agreement related to a stock sale contract with HYUNDAI MOBIS Co., Ltd., and HYUNDAI MOTOR
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
MOTOR COMPANY may exercise a preferential purchase right to designate a buyer with priority.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14) The Group entered into an agreement with equity investor who participated in the equity acquisition contract 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 Group in
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).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15) The Group has the obligation of paying Minimum Guarantee as utilizing product bundling of Tving Co., Ltd., and
the right to be paid a certain proportion of the excess as per agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16) As of September 30, 2025, the Group is in the process of exercising a put option on all of its shares in
KT Rwanda Networks Ltd. under the shareholders' agreement with the Rwandan government.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17) Details of properties and equipment and investment properties provided as collateral as of September 30,
2025 and December 31, 2024, are as follows

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(in millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| **Collateral** | **Carrying**<br> **amount** | **Carrying**<br> **amount** | **Secured<br>amount** | **Related**<br> **account** | **Related<br>amount** | **Mortgagee** |
|  Land and buildings | W | 1296447 | 816362 | Borrowings | 648289 | Industrial Bank of Korea/Shinhan Bank/Standard Chartered Bank<br> and others |
|  Land and buildings |  | 724897 | 107905 | Deposits<br>received | 91722 | leaseholders |
| *(in millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Collateral** | **Carrying**<br> **amount** | **Carrying**<br> **amount** | **Secured<br>amount** | **Related**<br> **account** | **Related<br>amount** | **Mortgagee** |
|  Land and buildings | W | 79959 | 76668 | Borrowings | 63890 | Industrial Bank of Korea/Shinhan Bank/Standard<br> Chartered Bank |
|  Land and buildings |  | 541351 | 68019 | Deposits<br>received | 58062 | leaseholder |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18) The Group has established supplier finance agreements with certain suppliers, under which participating
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 September 30,
2025, all financial liabilities subject to the supplier finance agreement are included in trade and other payables, and the carrying amount is W 49,542 million (as of December 31, 2024: W 16,081
million). Of these, the carrying amount of the part that the suppliers have already received from the finance provider is W 32,410 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19) As of September 30, 2025, the Group became aware of damage caused by unauthorized small sum-payments and security incidents, and is currently under investigation by the Personal Information Protection Commission regarding the timing and circumstances of the incident. As the investigation is ongoing,
the Group cannot reasonably estimate any obligations that may arise in connection with this matter.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Right-of-use assets |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Property and building | W | 995882 | 950940 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Machinery and communication line facilities |  | 74069 | 103672 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 111969 | 158158 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1181920 | 1212770 |

---

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Lease liabilities<sup>1</sup> |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current | W | 346649 | 349264 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-current |  | 708938 | 710189 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1055587 | 1059453 |

---

<sup>1</sup> Included in the line item other current liabilities and other non-current liabilities in the consolidated statements of financial position (Note 8).

For the nine-month periods ended September 30, 2025 and 2024, right-of-use assets related to leases increased by W 300,230 million and W 224,696, respectively.

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Depreciation of right-of-use assets |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Property and building | W | 239032 | 224482 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Machinery and communication line facilities |  | 23563 | 19257 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 54893 | 61023 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 317488 | 304762 |
|  Interest expense relating to lease liabilities | W | 28797 | 37229 |
|  Expense relating to short-term leases |  | 8381 | 5784 |
|  Expense relating to leases of low-value assets that are not short-term leases |  | 22495 | 19113 |
|  Expense relating to variable lease payments not included in lease liabilities |  | 10053 | 10792 |

---

The total cash outflow for leases for the nine-month periods ended September 30, 2025 and 2024, is W 366,742 million and W 344,704 million, respectively.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**17.** **Retained Earnings** 

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Legal reserve <sup>1</sup> | W | 782249 | 782249 |
|  Voluntary reserves <sup>2</sup> |  | 4651362 | 4651362 |
|  Unappropriated retained earnings |  | 9552570 | 8346165 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 14986181 | 13779776 |

---

<sup>1</sup> The Commercial Code of the Republic of Korea requires the Controlling Company to appropriate, as a legal 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 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. 

<sup>2</sup> The reserves of research and development of human resources in other surplus reserves are separately 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 be paid out as dividends. 

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**18.** **Other Components of Equity** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Group's other components of equity, as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Treasury stock | W | (461135) | (215210) |
|  Gain on disposal of treasury stock |  | 2826 | 2862 |
|  Share-based compensation |  | 4688 | 7106 |
|  Equity transactions within consolidated entities <sup>1</sup> |  | (431098) | (432318) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | (884719) | (637560) |

---

<sup>1</sup> Profit or loss incurred from transactions with non-controlling interest and investment difference incurred from change in proportion of subsidiaries are included.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) As of September 30, 2025 and December 31, 2024, the details of treasury stock, are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  Number of shares *(in shares)* |  | 10926622 |  | 6188739 |
|  Amount *(in millions of Korean won)* | W | 461135 |  | 215210 |

---

Treasury stock held as of September 30, 2025, is expected to be used for stock compensation for the Group's directors, employees, and for other purposes.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**19.** **Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Group has recognized the following amounts as revenue for three-month and the nine-month periods ended
September 30, 2025 and 2024:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Revenue from contracts with customers | W | 7051596 | 21196380 | 6594289 | 19681289 |
|  Revenue from other sources |  | 75138 | 202808 | 60326 | 174299 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 7126734 | 21399188 | 6654615 | 19855588 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Operating revenues for the three-month and nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Services provided | W | 5920837 | 17438923 | 5751952 | 17251247 |
|  Sales of goods |  | 1205897 | 3960265 | 902663 | 2604341 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 7126734 | 21399188 | 6654615 | 19855588 |

---

Revenue from providing services is recognized over time and revenue from sales of goods is recognized at a point in time. Revenue from real estate construction commitments included in sales of goods is recognized over time.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) The contract assets, liabilities and deferred revenue recognized in relation to the revenues from contracts
with customers are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Contract assets <sup>1</sup> | W | 1124055 | 977514 |
|  Contract liabilities <sup>1</sup> |  | 286612 | 1089146 |
|  Deferred revenue <sup>2</sup> |  | 101111 | 87209 |

---

<sup>1</sup> The Group recognized contract assets of W 145,689 million and contract liabilities of W 25,135 million for long-term construction contracts as of September 30, 2025 (December 31, 2024: contract assets of W 176,708 million and contract liabilities of W 815,826 million). The Group recognizes contract assets as trade receivables and other receivables, and contract liabilities as other current liabilities. 

<sup>2</sup> Deferred revenue related to government grant is excluded.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) The contract costs recognized as assets are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Incremental costs of obtaining a contract | W | 2000539 | 1666042 |
|  Costs to fulfil a contract |  | 79389 | 72122 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 2079928 | 1738164 |

---

As of September 30, 2025, the Group recognized W 1,338,011 million (nine-month period ended September 30, 2024: W 1,285,231 million) of operating expenses related to contract assets.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) For the three-month and nine-month periods ended September 30, 2025 and 2024, revenue recognized from contract
liabilities and deferred revenue carried-forward, is as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Revenue recognized from the beginning balance of contract liabilities |  |  |  |  |  |
|  Allocation of the transaction price | W | 40489 | 159114 | 50466 | 166251 |
|  Deferred revenue of joining/installment fees |  | 10785 | 35088 | 10023 | 32727 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 51274 | 194202 | 60489 | 198978 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**20.** **Operating Expenses** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Operating expenses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** |
|  Salaries and wages | W | 1167608 | 3408799 | 1118334 | 3432409 |
|  Depreciation |  | 710166 | 2141718 | 710135 | 2114914 |
|  Depreciation of right-of-use assets |  | 104183 | 317488 | 98571 | 304762 |
|  Amortization of intangible assets |  | 151336 | 451054 | 156045 | 484926 |
|  Commissions |  | 391908 | 1182465 | 338843 | 1024231 |
|  Interconnection charges |  | 100191 | 297688 | 107515 | 319606 |
|  International interconnection fees |  | 33492 | 94998 | 39315 | 102600 |
|  Purchase of inventories |  | 1147318 | 2714675 | 881601 | 2597849 |
|  Changes of inventories |  | 70 | 496364 | 60868 | 9086 |
|  Sales promotion expense and sales commissions |  | 612189 | 1777550 | 568316 | 1689037 |
|  Service costs |  | 617858 | 1827462 | 536023 | 1602824 |
|  Utilities |  | 155758 | 419276 | 151132 | 415562 |
|  Taxes and dues |  | 68677 | 196179 | 68615 | 198343 |
|  Rent |  | 41560 | 114627 | 34209 | 110390 |
|  Insurance premiums |  | 18806 | 50252 | 20320 | 51961 |
|  Installation fees |  | 43903 | 127667 | 40325 | 120376 |
|  Advertising expenses |  | 45463 | 115050 | 44359 | 117168 |
|  Research and development expenses |  | 55060 | 155492 | 44505 | 138683 |
|  Card service costs |  | 702065 | 2074554 | 734794 | 2247715 |
|  Others |  | 420942 | 1194060 | 436680 | 1308550 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 6588553 | 19157418 | 6190505 | 18390992 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of employee benefits for the three-month and nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Salaries & Wages | W | 1087014 | 3168147 | 1037475 | 3189483 |
|  Post-employment benefits (defined benefits plan) |  | 49208 | 155608 | 49308 | 148051 |
|  Post-employment benefits (defined contributions plan) |  | 23747 | 62171 | 23684 | 69673 |
|  Share-based payment |  | 2915 | 8148 | 2444 | 6292 |
|  Others |  | 4724 | 14725 | 5423 | 18910 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1167608 | 3408799 | 1118334 | 3432409 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**21.** **Other Income and Other Expenses** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Other income for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** |
|  Gain on disposal of property and equipment and investment properties | W | 3156 | 13484 | 8773 | 31257 |
|  Gain on disposal of intangible assets |  |  | 1641 | 199 | 311 |
|  Gain on disposal of right-of-use assets |  | 983 | 2647 | 887 | 2414 |
|  Compensation on impairment of property and equipment |  | 43643 | 58324 | 40712 | 106312 |
|  Income from government subsidies |  | 357 | 474 | 9102 | 23309 |
|  Gain on disposal of investments in associates |  |  | 8384 | 17968 | 19074 |
|  Gain on disposal of subsidiaries |  | 23456 | 33612 |  | 52688 |
|  Others |  | 14672 | 42347 | 11835 | 34408 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 86267 | 160913 | 89476 | 269773 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Other expenses for the three-month and nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** |
|  Loss on disposal of properties and equipment and investment properties | W | 11041 | 37043 | 12059 | 48404 |
|  Loss on disposal of intangible assets |  | 2244 | 7549 | 431 | 8270 |
|  Loss on disposal of right-of-use assets |  | 884 | 2518 | 148 | 1423 |
|  Loss on disposal of investments in associates |  |  |  | 5 | 17 |
|  Loss on disposal of subsidiaries |  |  | 6564 |  | 3154 |
|  Donations |  | 1884 | 7602 | 801 | 5127 |
|  Other allowance for bad debts |  | 5082 | 13157 | (129) | 20990 |
|  Others |  | 5117 | 25730 | 27101 | 71430 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 26252 | 100163 | 40416 | 158815 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**22.** **Financial Income and Costs** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of finance income for the three-month and nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Interest income | W | 64193 | 197074 | 74441 | 230916 |
|  Gain on foreign currency transactions |  | 76460 | 88156 | 6035 | 13943 |
|  Gain on foreign currency translation |  | (159276) | 109328 | 1811 | 22726 |
|  Gain on derivatives transactions |  | 11785 | 11939 | 39 | 3248 |
|  Gain on valuation of derivatives |  | 19936 | 39600 | (152859) | 76974 |
|  Dividend income |  | 16507 | 58011 | 15233 | 57445 |
|  Others |  | 566 | 2293 | 1621 | 9701 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 30171 | 506401 | (53679) | 414953 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of finance costs for the three-month and nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Interest expenses | W | 84351 | 273194 | 83201 | 278064 |
|  Loss on foreign currency transactions |  | 4374 | 12913 | 2605 | 8643 |
|  Loss on foreign currency translation |  | 26006 | 52157 | (143488) | 82764 |
|  Loss on derivatives transactions |  | 74791 | 79533 | 2275 | 2275 |
|  Loss on valuation of derivatives |  | (161083) | 95220 | 2323 | 2677 |
|  Loss on disposal of trade receivables |  | 2624 | 6091 | 1148 | 4737 |
|  Loss on valuation of financial instruments |  |  | 9653 | (738) | 15655 |
|  Others |  | 579 | 4187 | 1161 | 6196 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 31642 | 532948 | (51513) | 401011 |

---

**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 23.5%.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**24.** **Earnings per Share** 

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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Profit attributable to ordinary shares *(In millions of Korean won)* | W | 391266 | 1618502 | 357075 | 1125113 |
|  Weighted average number of ordinary shares used for calculating diluted earnings per share *(In number of shares)* |  | 241382469 | 243633295 | 245825775 | 245937306 |
|  Basic earnings per share *(In Korean won)* | W | 1621 | 6643 | 1453 | 4575 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Profit attributable to ordinary shares *(In millions of Korean won)* | W | 391266 | 1618502 | 357075 | 1125113 |
|  Adjusted net income attributable to ordinary shares *(In millions of Korean won)* |  | (113) | (679) | (213) | (454) |
|  Diluted profit attributable to ordinary shares *(In millions of Korean won)* |  | 391153 | 1617823 | 356862 | 1124659 |
|  Number of dilutive potential ordinary shares outstanding *(In number of shares)* <sup>1</sup> |  | 11767 | 47171 | 99797 | 77760 |
|  Weighted average number of ordinary shares used for calculating diluted earnings per share *(In number of shares)* |  | 241394236 | 243680466 | 245925572 | 246015066 |
|  Diluted earnings per share *(In Korean won)* | W | 1620 | 6639 | 1451 | 4572 |

---

<sup>1</sup> 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.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**25.** **Cash Generated from Operations** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Cash flows from operating activities for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
| **1. Profit for the period** | W | 1745334 | 1186715 |
| **2. Adjustments for:** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Income tax expense |  | 534864 | 408049 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest income <sup>1</sup> |  | (283793) | (310295) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest expense <sup>1</sup> |  | 327468 | 320365 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividend income <sup>2</sup> |  | (60551) | (59429) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Depreciation |  | 2180929 | 2147100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Amortization of intangible assets |  | 457048 | 494165 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Depreciation of right-of-use assets |  | 317488 | 304762 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Provisions for post-employment benefits (defined benefits) |  | 165306 | 159757 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Allowance for bad debts |  | 81216 | 136800 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share of net profit or loss of associates and joint ventures |  | (3954) | (5052) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Gain on disposal of associates and joint ventures |  | (35432) | (68591) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss on disposal of property, equipment and investment properties |  | 23559 | 17234 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Gain on disposal of right-of-use assets |  | (129) | (991) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss on disposal of intangible assets |  | 5908 | 7959 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Impairment loss on intangible assets |  | 802 | 857 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on foreign currency translation |  | (57048) | 60008 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) Gain on valuation of derivatives |  | 122196 | (75312) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss on disposal of financial assets at amortized cost |  | 18 | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on disposal of financial assets at fair value through profit or loss |  | 2933 | (4103) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on valuation of financial assets at fair value through profit or loss <sup>3</sup> |  | 7922 | 9164 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | (77619) | 99071 |
| **3. Changes in operating assets and liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in trade receivables |  | (432231) | (325288) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease (Increase) in other receivables |  | (530618) | 131218 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in other current assets |  | (714539) | (165743) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in other non-current assets |  | (163219) | (56095) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in inventories |  | 642136 | 15939 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (decrease) in trade payables |  | 161948 | (114004) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in other payables |  | 676371 | 58865 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (decrease) in other current liabilities |  | (819339) | 375341 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in other non-current liabilities |  | (5319) | (9211) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in provisions |  | (1437) | (2651) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (decrease) in deferred revenue |  | 330 | (1401) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in plan assets |  | 263840 | 242916 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Payment of post-employment benefits (defined benefit) |  | (302188) | (312051) |
| **4. Cash generated from operations (1+2+3)** |  | 4230200 | 4666069 |

---

<sup>1</sup> Subsidiaries such as BC Card Co., Ltd. recognize interest income and expense as operating revenue and expense, respectively. Interest income of W 86,719 million (for the nine-month period ended September 30, 2024: W 79,379 million) recognized as operating revenue and interest expense of W 54,274 million (for the nine-month periods ended September 30, 2024: W 42,301 million) recognized as operating expense, for the nine-month period ended September 30, 2025, are included in the adjustment. 

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

<sup>2</sup> BC Card Co., Ltd. recognized dividend income as operating revenue. Dividend income of W 2,534 million recognized as operating revenue for the nine-month period ended September 30, 2025 (for nine-month period ended September 30, 2024: W 1,701 million) is included in the adjustment.

<sup>3</sup> Subsidiaries such as KT Investment Co., Ltd. recognized gain and loss on valuation of financial assets at fair 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 75 million (for the nine-month period ended September 30, 2024: net loss on valuation of financial assets at fair value through profit or loss of W 2,312 million) that is recognized as operating revenue and expense, for the nine-month period ended September 30, 2025, is included in the adjustment. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Significant transactions not affecting cash flows for the nine-month periods ended September 30, 2025 and 2024,
are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Reclassification of current portion of borrowings | W | 1587662 | 3126734 |
|  Reclassification of construction-in-progress to property and equipment |  | 2309794 | 1342896 |
|  Change of other payables relating to acquisition of property and equipment |  | (400798) | (44994) |
|  Change of other payables relating to acquisition of intangible assets |  | (283255) | (290400) |
|  Reclassification of other payables from net defined benefit liabilities |  | (23652) | (14144) |
|  Increase in financial assets due to stock exchange |  |  | 52841 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 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 nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
|  |  |  |  | **Others** | **Others** | **Others** | **Others** |  |
|  | **Beginning** | **Beginning** | **Cash flows** | **Acquisition** | **Changes in<br>FX rate** | **Fair value<br>change** | **Other<br>changes** | **Ending** |
|  Borrowings | W | 10520691 | 238174 | 22961 | (80403) |  | (169161) | 10532262 |
|  Lease liabilities |  | 1059453 | (298468) | 353243 |  |  | (58641) | 1055587 |
|  Derivative liabilities |  | 3 | 405 |  |  | 6218 |  | 6626 |
|  Derivative assets |  | (445471) | 126738 |  |  | 40669 | 55349 | (222715) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 11134676 | 66849 | 376204 | (80403) | 46887 | (172453) | 11371760 |

---

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
|  |  |  |  | **Others** | **Others** | **Others** | **Others** |  |
|  | **Beginning** | **Beginning** | **Cash flows** | **Acquisition** | **Changes in<br>FX rate** | **Fair value<br>change** | **Other<br>changes** | **Ending** |
|  Borrowings | W | 10218165 | (514277) |  | 64970 |  | (234) | 9768624 |
|  Lease liabilities |  | 1179909 | (266463) | 227146 |  | 264 | (39146) | 1101710 |
|  Derivative liabilities |  | 24547 | (855) |  |  | 837 | (22223) | 2306 |
|  Derivative assets |  | (159211) | 1118 |  | (59494) | (16881) | 22486 | (211982) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 11263410 | (780477) | 227146 | 5476 | (15780) | (39117) | 10660658 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**27.** **Segment Information** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The management of the Group determines the operating segments based on the reported information when
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 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of each segment for the three-month and nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* | *(In millions of Korean won)* |
|  | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
|  | **Operating**<br> **revenues** | **Operating**<br> **revenues** | **Operating**<br> **revenues** | **Operating**<br> **profit** | **Operating**<br> **profit** | **Depreciation and<br>amortization <sup>1</sup>** | **Depreciation and<br>amortization <sup>1</sup>** |
|  | **Three-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** | **Three-<br>month** | **Nine-<br>month** | **Three-<br>month** | **Nine-<br>month** |
|  ICT | W | 5108964 | 14563794 | 340867 | 1209716 | 812936 | 2436415 |
|  Finance |  | 840939 | 2504511 | 39512 | 135197 | 6979 | 21829 |
|  Satellite TV |  | 172221 | 512240 | 16405 | 44024 | 7952 | 30257 |
|  Real estate |  | 182573 | 473103 | 33139 | 74920 | 18185 | 52333 |
|  Others |  | 2441654 | 7775209 | 99463 | 725178 | 153759 | 465339 |
|  Subtotal |  | 8746351 | 25828857 | 529386 | 2189035 | 999811 | 3006173 |
|  Elimination |  | (1619617) | (4429669) | 8795 | 52735 | (34126) | (95913) |
|  Consolidated amount | W | 7126734 | 21399188 | 538181 | 2241770 | 965685 | 2910260 |

---

<sup>1</sup> Sum of the amortization of property and equipment, intangible assets, investment properties and right-of-use assets.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
|  | **Operating**<br> **revenues** | **Operating**<br> **revenues** | **Operating**<br> **revenues** | **Operating**<br> **profit** | **Operating**<br> **profit** | **Depreciation and<br>amortization <sup>1</sup>** | **Depreciation and<br>amortization <sup>1</sup>** |
|  | **Three-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** | **Three-<br>month** | **Nine-<br>month** | **Three-<br>month** | **Nine-<br>month** |
|  ICT | W | 4764983 | 14008107 | 338858 | 1091489 | 805837 | 2415088 |
|  Finance |  | 859699 | 2640662 | 31374 | 106297 | 8400 | 25339 |
|  Satellite TV |  | 177342 | 531432 | 10692 | 36377 | 11890 | 36499 |
|  Real estate |  | 144902 | 431539 | 17719 | 57269 | 17050 | 52389 |
|  Others |  | 2000523 | 6017508 | 51837 | 183909 | 151921 | 456635 |
|  Subtotal |  | 7947449 | 23629248 | 450480 | 1475341 | 995098 | 2985950 |
|  Elimination |  | (1292834) | (3773660) | 13630 | (10745) | (30347) | (81348) |
|  Consolidated amount | W | 6654615 | 19855588 | 464110 | 1464596 | 964751 | 2904602 |

---

<sup>1</sup> Sum of the amortization of property and equipment, intangible assets, investment properties and right-of-use assets.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) Operating revenues for the nine-month periods ended September 30, 2025 and 2024, and non-current assets as of September 30, 2025 and December 31, 2024, by geographical regions, are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** |
|  | **Operating revenues** | **Operating revenues** | **Operating revenues** | **Non-current assets <sup>1</sup>** |
|  | **Three-month** | **Three-month** | **Nine-month** | **September 30, 2025** |
|  Domestic | W | 7082746 | 21267165 | 19638078 |
|  Overseas |  | 43988 | 132023 | 144653 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 7126734 | 21399188 | 19782731 |

---

<sup>1</sup> Sum of property and equipment, intangible assets, investment properties and right-of-use assets.

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** |
|  | **Operating revenues** | **Operating revenues** | **Operating revenues** | **Non-current assets <sup>1</sup>** |
|  | **Three months** | **Three months** | **Nine months** | **December 31, 2024** |
|  Domestic | W | 6611396 | 19724402 | 20021125 |
|  Overseas |  | 43219 | 131186 | 179815 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 6654615 | 19855588 | 20200940 |

---

<sup>1</sup> Sum of property and equipment, intangible assets, investment properties and right-of-use assets.

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**28.** **Related Party Transactions** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The list of related party of the Group as of September 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 <sup>1</sup> | 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 |

---

<sup>1</sup> Included within the scope of related parties under Korean IFRS 1024 due to the presence of significant influence, even though treated in accordance with Korean IFRS 1109.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Significant balances of receivables and payables in relations to transactions with related parties as of
September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  |  | **Receivables** | **Receivables** | **Receivables** | **Payables** | **Payables** | **Payables** |
| Relationship | Name of Entity | **Trade<br>receivables** | **Trade<br>receivables** | **Other<br>receivables** | **Trade<br>payables** | **Other<br>payables** | **Lease**<br> **liabilities** |
|  Associates and joint ventures | K Bank, Inc. | W | 1274 | 69051 |  | 896 |  |
|  | Little Big Pictures |  | 235 | 1396 |  | 30 |  |
|  | K-Realty 11th Real Estate Investment Trust Company |  | 57 | 1482 |  |  | 2120 |
|  | K-Realty No.3 Real Estate General Private Placement Investment |  | 84 |  |  | 300 | 100464 |
|  | Others |  | 4027 | 1808 | 419 | 1789 |  |
|  Others | Others |  | 182 | 68 |  |  |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 5859 | 73805 | 419 | 3015 | 102584 |

---

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  |  | **Receivables** | **Receivables** | **Receivables** | **Payables** | **Payables** | **Payables** |
| Relationship | Name of Entity | **Trade<br>receivables** | **Trade<br>receivables** | **Other<br>receivables** | **Trade<br>payables** | **Other<br>payables** | **Lease**<br> **liabilities** |
|  Associates and joint ventures | K Bank, Inc. | W | 778 | 147868 |  | 83 |  |
|  | Little Big Pictures |  | 235 | 1396 |  | 2 |  |
|  | K-Realty 11th Real Estate Investment Trust Company |  | 113 | 1283 |  |  | 4588 |
|  | K-Realty No.3 Real Estate General Private Placement Investment |  | 7911 |  |  |  |  |
|  | Others |  | 2439 | 1628 | 1302 | 1326 |  |
|  Others | Others |  | 138 | 240 | 1 |  |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 11614 | 152415 | 1303 | 1411 | 4588 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) Significant transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
|  |  | **Sales** | **Sales** | **Sales** | **Purchases** | **Purchases** | **Acquisition<br>of right-of-use<br>assets** |
| Relationship | Name of Entity | **Operating<br>revenue** | **Operating<br>revenue** | **Other**<br> **income** | **Operating<br>expenses** | **Others <sup>1</sup>** | **Acquisition<br>of right-of-use<br>assets** |
|  Associates and joint ventures | K Bank, Inc. | W | 24785 |  | 21748 |  |  |
|  | HD Hyundai Robotics Co., Ltd. |  | 58 |  |  |  |  |
|  | K-Realty 11th Real Estate Investment Trust Company |  | 27 | 150 | 1396 |  |  |
|  | K-Realty No.3 Real Estate General Private Placement Investment Company |  | 24980 | 253 | 887 |  | 100493 |
|  | Others <sup>2</sup> |  | 19240 | 529 | 22224 | 86 |  |
|  Others | Others |  | 2 | 444 | 116 |  |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 69092 | 1376 | 46371 | 86 | 100493 |

---

<sup>1</sup> The amount of acquisition of property, equipment and others is included. 

<sup>2</sup> Transactions with Trustay Co., Ltd. before they were excluded from associates and joint ventures are included.

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
|  |  | **Sales** | **Sales** | **Sales** | **Purchases** | **Purchases** | **Acquisition<br>of right-of-use<br>assets** |
| Relationship | Name of Entity | **Operating<br>revenue** | **Operating<br>revenue** | **Other**<br> **income** | **Operating<br>expenses** | **Others <sup>1</sup>** | **Acquisition<br>of right-of-use<br>assets** |
|  Associates and joint ventures | K Bank, Inc. | W | 23786 |  | 14628 |  |  |
|  | HD Hyundai Robotics Co., Ltd. |  | 57 |  |  |  |  |
|  | K-Realty 11th Real Estate Investment Trust Company |  | 27 | 150 | 1998 |  | 14 |
|  | K-Realty No.3 Real Estate General Private Placement Investment Company |  | 7580 | 247 |  |  |  |
|  | Others <sup>2</sup> |  | 17564 | 476 | 27062 | 1 |  |
|  Others | Others |  | 32 | 4 | 206 | 1320 |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 49046 | 877 | 43894 | 1321 | 14 |

---

<sup>1</sup> The amount of acquisition of property, equipment and others is included. 

<sup>2</sup> Transactions with LS Marine Solution Co., Ltd. and QTT Global (Group) Company Ltd. before they were excluded from associates and joint ventures are included."

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
| Relationship | Name of Entity | **Finance<br>income** | **Finance<br>income** | **Finance<br>costs** | **Dividend**<br> **Income** | **Finance<br>income** | **Finance<br>costs** | **Dividend**<br> **income** |
|  Associates and joint ventures | K Bank, Inc. | W | 997 |  | 1150 | 5581 |  |  |
|  | K-Realty 11th Real Estate Investment Trust Company |  |  | 62 | 398 |  | 140 | 400 |
|  | Others |  |  | 789 | 5444 |  |  | 4769 |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 997 | 851 | 6992 | 5581 | 140 | 5169 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Key management compensation for the nine-month periods ended September 30, 2025 and 2024, consists of:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Sort-term benefits | W | 1515 | 1224 |
|  Post-employment benefits |  | 210 | 145 |
|  Share-based compensation |  | 714 | 883 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 2439 | 2252 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) Fund transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** |
|  | **Borrowing transactions <sup>1</sup>** | **Borrowing transactions <sup>1</sup>** | **Equity<br>contributions<br>in cash** |
|  | **Borrowings** | **Repayments** | **Equity<br>contributions<br>in cash** |
|  **Associates and joint ventures** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IBK-KT Young Entrepreneurs MARS Investment Fund | W |  | 6000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K-Realty 11th Real Estate Investment Trust Company |  | 1396 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K Bank, Inc. |  |  | 100000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 817 | 7367 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 2213 | 113367 |

---

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** |
|  | **Borrowing transactions <sup>1</sup>** | **Borrowing transactions <sup>1</sup>** | **Equity<br>contributions<br>in cash** |
|  | **Borrowings** | **Repayments** | **Equity<br>contributions<br>in cash** |
|  **Associates and joint ventures** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IBK-KT Young Entrepreneurs MARS Investment Fund |  |  | 6000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K-Realty 11th Real Estate Investment Trust Company |  | 1788 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TeamFresh Corp. <sup>2</sup> |  |  | 52841 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  | 35575 |
|  **Others** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Rebellions Co.,Ltd. |  |  | 9999 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1788 | 104415 |

---

<sup>1</sup> Borrowing transactions include lease transactions.

<sup>2</sup> The transaction involved acquiring redeemable convertible preference shares of TeamFresh Corp. and occurred in the process of exchange with the shares of Lolab Co., Ltd. that were held.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) The Group has an obligation according to invest agreements with related parties such as KIAMCO Data Center
Development Real Estate General Private Placement Investment Blind Trusts. As of September 30, 2025 the Group has a plan to make an additional investment of W 87,734 million.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) As of September 30, 2025, the limit of the credit card contract provided by the Group to K Bank, Inc. is W 1,527 million (December 31, 2024: W 1,447 million).

------

##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**29.** **Fair Value** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(1)** **Fair Value of Financial Instruments by Category** 

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  | **Carrying<br>amount** | **Carrying<br>amount** | **Fair value** | **Carrying<br>amount** | **Fair value** |
|  **Financial assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash and cash equivalents | W | 3890295 | <sup>1</sup> | 3716680 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at amortized cost <sup>2</sup> |  | 8051989 | <sup>1</sup> | 7380901 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 211963 | 211963 | 114774 | 114774 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at amortized cost |  | 1022231 | <sup>1</sup> | 962653 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 1176185 | 1176185 | 1029926 | 1029926 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 2107610 | 2107610 | 1665368 | 1665368 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  | 222715 | 222715 | 445471 | 445471 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 16682988 |  | 15315773 |  |
|  **Financial liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other payables | W | 7587448 | <sup>1</sup> | 7214174 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings |  | 10532262 | 10569394 | 10520690 | 10423619 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at amortized cost |  | 972598 | <sup>1</sup> | 942135 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profit or loss |  | 106146 | 106146 | 132011 | 132011 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  | 6626 | 6626 | 3 | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 19205080 |  | 18809013 |  |

---

<sup>1</sup> The Group did not conduct fair value estimation as the book amount is a reasonable approximation of the fair value. 

<sup>2</sup> Lease receivables are excluded from fair value disclosure in accordance with Korean IFRS 1107.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(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:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 1: The quoted (unadjusted) price in active markets for identical assets or liabilities that an entity
can access at the measurement date.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 2: All inputs other than quoted prices included in Level 1 that are observable (either directly
that is, or indirectly that is, derived from prices) for the asset or liability.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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 September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Level 1** | **Level 1** | **Level 2** | **Level 3** | **Total** |
|  **Assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W |  | 211963 |  | 211963 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 3085 | 390806 | 782294 | 1176185 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 1660893 | 6399 | 440318 | 2107610 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  |  | 222715 |  | 222715 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1663978 | 831883 | 1222612 | 3718473 |
|  **Liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | W |  | 10569394 |  | 10569394 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profit or loss |  |  | 1680 | 104466 | 106146 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  |  | 6626 |  | 6626 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W |  | 10577700 | 104466 | 10682166 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Level 1** | **Level 1** | **Level 2** | **Level 3** | **Total** |
|  **Assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W |  | 114774 |  | 114774 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 5620 | 181694 | 842612 | 1029926 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 1317120 | 5418 | 342830 | 1665368 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  |  | 445471 |  | 445471 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1322740 | 747357 | 1185442 | 3255539 |
|  **Liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | W |  | 10423619 |  | 10423619 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profit or loss |  |  |  | 132011 | 132011 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  |  | 3 |  | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W |  | 10423622 | 132011 | 10555633 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 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.

Details of changes in Level 3 of the fair value hierarchy for the recurring fair value measurements are as follows for the nine-month periods ended September 30, 2025 and 2024:

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** |
|  | **Financial assets** | **Financial assets** | **Financial assets** | **Financial<br>liabilities** |
|  | **Financial<br>assets at**<br> **FVTPL** | **Financial<br>assets at**<br> **FVTPL** | **Financial<br>assets at**<br> **FVOCI** | **Financial<br>liabilities at**<br> **FVTPL** |
|  Beginning balance | W | 842612 | 342830 | 132011 |
|  Acquisition |  | 24069 | 100000 |  |
|  Transfer |  | (3515) | 220 |  |
|  Disposal |  | (45629) | (145) | (381) |
|  Amount recognized in profit or loss |  | (35243) |  | (27164) |
|  Amount recognized in other comprehensive income |  |  | (2587) |  |
|  Ending balance | W | 782294 | 440318 | 104466 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** |
|  | **Financial assets** | **Financial assets** | **Financial assets** | **Financial<br>liabilities** |
|  | **Financial<br>assets at**<br> **FVTPL** | **Financial<br>assets at**<br> **FVTPL** | **Financial<br>assets at**<br> **FVOCI** | **Financial<br>liabilities at**<br> **FVTPL** |
|  Beginning balance | W | 768832 | 444026 | 134561 |
|  Acquisition |  | 63255 | 1011 |  |
|  Transfer |  | 49299 | (183) | 5772 |
|  Disposal |  | (22107) |  |  |
|  Amount recognized in profit or loss |  | 11511 |  | (15518) |
|  Amount recognized in other comprehensive income |  |  | 601 |  |
|  Ending balance | W | 870790 | 445455 | 124815 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(4)** **Valuation Technique** 

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

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Fair value** | **Fair value** | **Level** | **Major valuation techniques** |
|  **Assets** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W | 211963 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 1173100 | 23 | DCF Model,<br> Adjusted Net Asset Model,<br> Market Approach Model,<br> T-F Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 446717 | 23 | DCF Model,<br> Hull-White model,<br> LSMC model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  | 222715 | 2 | DCF Model |
|  **Liabilities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings |  | 10569394 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profit or loss |  | 106146 | 23 | Binomial Option Pricing Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  | 6626 | 2 | DCF Model |

---

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Fair value** | **Fair value** | **Level** | **Major valuation techniques** |
|  **Assets** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W | 114774 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 1024306 | 23 | DCF Model,<br> Adjusted Net Asset Model,<br> Market Approach Model<br> T-F Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 348248 | 23 | DCF Model,<br> Market Approach Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  | 445471 | 2 | DCF Model |
|  **Liabilities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings |  | 10423619 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profit or loss |  | 132011 | 3 | Binomial Option Pricing Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  | 3 | 2 | DCF Model |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(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.

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##### [**Table of Contents**](#toc)
**KT Corporation and Its Subsidiaries** 

**Notes to the Consolidated Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**30.** **Events After the Reporting Period** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Group decided on a quarterly dividend at the Board of Directors dated October 21, 2025, and the
details are as follows.

---

| | |
|:---|:---|
| **Type** | **Details** |
|  Dividend per share | W 600 (Total dividend: W 144,657 million) |
|  Dividend yield | 1.2% |
|  Dividend report date | November 5, 2025 |
|  Dividend pay date | November 20, 2025 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) As of September 30, 2025, the Group has notified customers affected by unauthorized small sum-payments and security incidents. The Group is carrying out its own customer care measures in connection with the incident. Implementing these customer care measures is expected to result in a decrease in
operating revenue and an increase in operating expenses; however, as of the end of the current quarter, the financial impact cannot be reasonably estimated.

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Separate Interim Financial Statements** 

**September 30, 2025 and 2024, and December 31, 2024** 

**ATTACHMENT: INDEPENDENT AUDITOR'S REVIEW REPORT** 

**KT Corporation** 

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Index** 

**September 30, 2025 and 2024, and December 31, 2024** 

---

| | |
|:---|:---|
|  | **Page(s)** |
|  **[Report on Review of Separate Interim Financial Statements](#otv40561_60)** | 1 – 2 |
|  **Separate Interim Financial Statements** |  |
|  [Separate Interim Statements of Financial Position](#otv40561_62) | 3 – 4 |
|  [Separate Interim Statements of Profit or Loss](#otv40561_63) | 5 |
|  [Separate Interim Statements of Comprehensive Income](#otv40561_64) | 6 |
|  [Separate Interim Statements of Changes in Equity](#otv40561_65) | 7 |
|  [Separate Interim Statements of Cash Flows](#otv40561_66) | 8 |
|  [Notes to the Separate Interim Financial Statements](#otv40561_67) | 9 – 59 |

---

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##### [**Table of Contents**](#toc)

---

| | |
|:---|:---|
| ![LOGO](g40561g95h81.jpg) | **Deloitte Anjin LLC**<br> 9F., One IFC,<br> 10, Gukjegeumyung-ro,<br> Youngdeungpo-gu, Seoul<br> 07326, Korea<br>Tel: +82 (2) 6676 1000<br> Fax: +82 (2) 6674 2114<br> www.deloitteanjin.co.kr |

---

**Independent Auditor's Review Report** 

[English Translation of Independent Auditor's Review Report Originally Issued in Korean on November 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 September 30, 2025, and the related separate interim statements of profit or loss and comprehensive income for the three-month and nine-month periods ended September 30, 2025 and 2024, and changes in equity and cash flows for the nine-month periods ended September 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.

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

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

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![LOGO](g40561g13y45.jpg)

**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 September 30, 2025, and its financial performance and its cash flows for the nine-month period ended September 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](g40561g98o70.jpg)

Seoul, Korea

November 14, 2025

<u>Notice to Readers</u> 

This review report is effective as of November 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.

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**KT Corporation** 

**Separate Interim Statements of Financial Position** 

**As of September 30, 2025 and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Notes** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  **Assets** |  |  |  |  |  |
|  **Current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash and cash equivalents | 428 | W | 1095457 | W | 1540570 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables, net | 4528 |  | 3186455 |  | 2904846 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets | 4628 |  | 177741 |  | 262547 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Inventories, net | 7 |  | 155247 |  | 224678 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other current assets | 8 |  | 2512937 |  | 1959960 |
|  Total current assets |  |  | 7127837 |  | 6892601 |
|  **Non-current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables, net | 4528 |  | 319895 |  | 309106 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets | 4628 |  | 2356164 |  | 2175177 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Property and equipment, net | 9 |  | 10748722 |  | 11477680 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Right-of-use assets | 16 |  | 824387 |  | 896299 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Investment properties, net | 9 |  | 1126536 |  | 1114379 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Intangible assets, net | 9 |  | 936858 |  | 1104680 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Investments in subsidiaries, associates and joint ventures | 10 |  | 4807636 |  | 4831186 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other non-current assets | 8 |  | 801213 |  | 727772 |
|  Total non-current assets |  |  | 21921411 |  | 22636279 |
|  **Total assets** |  | W | 29049248 | W | 29528880 |

---

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**KT Corporation** 

**Separate Interim Statements of Financial Position** 

**As of September 30, 2025 and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Notes** | **September 30,<br>2025** | **September 30,<br>2025** | **December 31,<br>2024** | **December 31,<br>2024** |
|  **Liabilities** |  |  |  |  |  |
|  **Current liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other payables | 41128 | W | 4284412 | W | 4326079 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | 41228 |  | 1310327 |  | 2434204 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current tax liabilities |  |  | 122333 |  | 32057 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Provisions | 1315 |  | 88400 |  | 90413 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred income | 19 |  | 55046 |  | 52257 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other current liabilities | 4816 |  | 679315 |  | 698209 |
|  Total current liabilities |  |  | 6539833 |  | 7633219 |
|  **Non-current liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other payables | 41128 |  | 219378 |  | 479416 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | 41228 |  | 5499530 |  | 5437715 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities | 4628 |  | 6654 |  | 28 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Net defined benefit liability | 14 |  | 133807 |  | 51082 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Provisions | 13 |  | 96551 |  | 96059 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred income | 19 |  | 190707 |  | 136382 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deferred tax liabilities |  |  | 828867 |  | 728863 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other non-current liabilities | 4816 |  | 471111 |  | 545976 |
|  Total non-current liabilities |  |  | 7446605 |  | 7475521 |
|  **Total liabilities** |  |  | 13986438 |  | 15108740 |
|  **Equity** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share capital |  |  | 1564499 |  | 1564499 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Share premium |  |  | 1440258 |  | 1440258 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Retained earnings | 17 |  | 12301648 |  | 11717929 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Accumulated other comprehensive income |  |  | 393859 |  | 86478 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other components of equity | 18 |  | (637454) |  | (389024) |
|  **Total equity** |  |  | 15062810 |  | 14420140 |
|  **Total liabilities and equity** |  | W | 29049248 | W | 29528880 |

---

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

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**KT Corporation** 

**Separate Interim Statements of Profit or Loss** 

**For the three-month and nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  |  | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** |
| *(In millions of Korean won, except per share amounts)* | **Notes** | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** | **2024** |
|  |  | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** |
|  **Operating revenue** | 19 | W | 5108964 | W | 14563794 | W | 4764983 | W | 14008107 |
|  **Operating expenses** | 20 |  | 4768096 |  | 13354077 |  | 4426125 |  | 12916618 |
|  **Operating profit** |  |  | 340868 |  | 1209717 |  | 338858 |  | 1091489 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other income | 21 |  | 63241 |  | 141430 |  | 104332 |  | 290456 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other expenses | 21 |  | 21471 |  | 72025 |  | 39975 |  | 126166 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Finance income | 22 |  | (6935) |  | 390916 |  | (71859) |  | 310942 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Finance costs | 22 |  | (4513) |  | 419070 |  | (76657) |  | 283445 |
|  **Profit before income tax** |  |  | 380216 |  | 1250968 |  | 408013 |  | 1283276 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Income tax expense | 23 |  | 90595 |  | 237904 |  | 98221 |  | 304953 |
|  **Profit for the period** |  | W | 289621 | W | 1013064 | W | 309792 | W | 978323 |
|  **Earnings per share** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Basic earnings per share | 24 | W | 1200 | W | 4158 | W | 1260 | W | 3978 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Diluted earnings per share | 24 |  | 1200 |  | 4157 |  | 1260 |  | 3977 |

---

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

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**KT Corporation** 

**Separate Interim Statements of Comprehensive Income** 

**For the three-month and nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** | **Three-Month and Nine-Month Periods Ended September 30** |
| *(In millions of Korean won)* | **Notes** | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** | **2024** |
|  |  | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** | **Three-month** | **Three-month** | **Nine-month** | **Nine-month** |
|  **Profit for the period** |  | W | 289621 | W | 1013064 | W | 309792 | W | 978323 |
|  **Other comprehensive income (loss)** |  |  |  |  |  |  |  |  |  |
|  **Items that will not be reclassified to profit or loss:** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements of the net defined benefit Assets | 14 |  | 274 |  | 4093 |  | 608 |  | 2179 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on equity instruments at fair value through other comprehensive income |  |  | 106610 |  | 254610 |  | (63458) |  | 163951 |
|  **Items that are or may be subsequently reclassified to profit or loss:** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on cash flow hedges | 6 |  | 134738 |  | (32393) |  | (82009) |  | 55463 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other comprehensive income from cash flow hedges reclassified to profit or loss |  |  | (117808) |  | 66260 |  | 102188 |  | (44403) |
|  **Other comprehensive income (loss) for the period, net of tax** |  |  | 123814 |  | 292570 |  | (42671) |  | 177190 |
|  **Total comprehensive income for the period** |  | W | 413435 | W | 1305634 | W | 267121 | W | 1155513 |

---

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

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**KT Corporation** 

**Separate Interim Statements of Changes in Equity** 

**For the nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Notes** | **Share capital** | **Share capital** | **Share<br>premium** | **Share<br>premium** | **Retained<br>earnings** | **Retained<br>earnings** | **Accumulated<br>other<br>comprehensive<br>income** | **Accumulated<br>other<br>comprehensive<br>income** | **Other<br>components<br>of equity** | **Other<br>components<br>of equity** | **Total equity** | **Total equity** |
|  **Balance as of January 1, 2024** |  | W | 1564499 | W | 1440258 | W | 12544425 | W | 64229 | W | (569872) | W | 15043539 |
|  **Comprehensive income** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Profit for the period |  |  |  |  |  |  | 978323 |  |  |  |  |  | 978323 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on financial assets at fair value through other comprehensive income | 6 |  |  |  |  |  | (11041) |  | 174992 |  |  |  | 163951 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements of net defined benefit assets | 14 |  |  |  |  |  | 2179 |  |  |  |  |  | 2179 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains on cash flow hedges | 6 |  |  |  |  |  |  |  | 11060 |  |  |  | 11060 |
|  **Total comprehensive income for the period** |  |  |  |  |  |  | 969461 |  | 186052 |  |  |  | 1155513 |
|  **Transactions with owners** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid |  |  |  |  |  |  | (482970) |  |  |  |  |  | (482970) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interim Dividends paid |  |  |  |  |  |  | (245772) |  |  |  |  |  | (245772) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisition of treasury stock |  |  |  |  |  |  |  |  |  |  | (27100) |  | (27100) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposal of treasury stock |  |  |  |  |  |  |  |  |  |  | 3760 |  | 3760 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Retirement of treasury stock |  |  |  |  |  |  | (205956) |  |  |  | 205956 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  |  |  |  |  |  |  |  |  | (2898) |  | (2898) |
|  **Subtotal** |  |  |  |  |  |  | (934698) |  |  |  | 179718 |  | (754980) |
|  **Balance as of September 30, 2024** |  | W | 1564499 | W | 1440258 | W | 12579188 | W | 250281 | W | (390154) | W | 15444072 |
|  **Balance as of January 1, 2025** |  | W | 1564499 | W | 1440258 | W | 11717929 | W | 86478 | W | (389024) | W | 14420140 |
|  **Comprehensive income** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Profit for the period |  |  |  |  |  |  | 1013064 |  |  |  |  |  | 1013064 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains (losses) on financial assets at fair value through other comprehensive income | 6 |  |  |  |  |  | (18904) |  | 273514 |  |  |  | 254610 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements of net defined benefit assets | 14 |  |  |  |  |  | 4093 |  |  |  |  |  | 4093 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Valuation gains on cash flow hedges | 6 |  |  |  |  |  |  |  | 33867 |  |  |  | 33867 |
|  **Total comprehensive income for the period** |  |  |  |  |  |  | 998253 |  | 307381 |  |  |  | 1305634 |
|  **Transactions with owners** |  |  |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid |  |  |  |  |  |  | (122836) |  |  |  |  |  | (122836) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interim Dividends paid |  |  |  |  |  |  | (291641) |  |  |  |  |  | (291641) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Appropriation of retained earnings related to loss on disposal of treasury stock | 18 |  |  |  |  |  | (57) |  |  |  | 57 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisition of treasury stock |  |  |  |  |  |  |  |  |  |  | (250000) |  | (250000) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposal of treasury stock |  |  |  |  |  |  |  |  |  |  | 4075 |  | 4075 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  |  |  |  |  |  |  |  |  | (2562) |  | (2562) |
|  **Subtotal** |  |  |  |  |  |  | (414534) |  |  |  | (248430) |  | (662964) |
|  **Balance as of September 30, 2025** |  | W | 1564499 | W | 1440258 | W | 12301648 | W | 393859 | W | (637454) | W | 15062810 |

---

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

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**KT Corporation** 

**Separate Interim Statements of Cash Flows** 

**For the nine-month periods ended September 30, 2025 and 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** | **Nine-Month Periods Ended September 30** |
| *(In millions of Korean won)* | **Notes** | **2025** | **2025** | **2024** | **2024** |
|  **Cash flows from operating activities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash generated from operations | 25 | W | 3257307 | W | 3549954 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest paid |  |  | (196161) |  | (211869) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest received |  |  | 125246 |  | 150207 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends received |  |  | 90227 |  | 92753 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Income tax paid |  |  | (83801) |  | (174930) |
|  **Net cash inflow from operating activities** |  |  | 3192818 |  | 3406115 |
|  **Cash flows from investing activities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Collection of loans |  |  | 23230 |  | 25630 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of financial assets at amortized cost |  |  |  |  | 297569 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of financial assets at fair value through profit or loss |  |  | 5493 |  | 18019 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of financial assets at fair value through other comprehensive income |  |  | 2297 |  | 34299 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of investments in subsidiaries, associates and joint ventures |  |  | 35826 |  | 27674 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of property and equipment |  |  | 32309 |  | 33610 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of intangible assets |  |  | 3942 |  | 2116 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Disposals of right-of-use assets |  |  | 663 |  | 118 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loans granted |  |  | (17863) |  | (22336) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of financial assets at fair value through profit or loss |  |  | (8538) |  | (15367) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of investments in subsidiaries, associates and joint ventures |  |  | (5803) |  | (75670) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of property and equipment |  |  | (1726595) |  | (1619104) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of intangible assets |  |  | (281596) |  | (277132) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisitions of right-of-use assets |  |  | (53) |  | (683) |
|  **Net cash outflow from investing activities** |  |  | (1936688) |  | (1571257) |
|  **Cash flows from financing activities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Proceeds from borrowings |  |  | 2094024 |  | 698700 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Settlement of derivative contracts (inflow) |  |  | 132774 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividends paid |  |  | (414477) |  | (728742) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Repayments of borrowings |  |  | (3017204) |  | (1174038) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acquisition of treasury stock |  |  | (250000) |  | (27100) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Settlement of derivative contracts (outflow) |  |  | (6036) |  | (855) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in lease liabilities |  |  | (240046) |  | (236112) |
|  **Net cash outflow from financing activities** | 26 |  | (1700965) |  | (1468147) |
|  **Effect of exchange rate change on cash and cash equivalents** |  |  | (278) |  | (25) |
|  **Net increase (decrease) in cash and cash equivalents** |  |  | (445113) |  | 366686 |
|  **Cash and cash equivalents** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Beginning of the period |  |  | 1540570 |  | 1242005 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; End of the period |  | W | 1095457 | W | 1608691 |

---

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

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 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 September 30, 2025, the Korean government does not own any shares in the Company.

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**KT Corporation**

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**2.** **Material Accounting Policies** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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 nine-month period ended September 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.2** **Changes in Accounting Policies and Disclosures** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;*(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.

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.

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

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

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

- K-IFRS 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 *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.

- 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.

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**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 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.

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**4.** **Financial Instruments by Category** 

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

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| **Financial assets** | **Financial<br>assets at<br>amortized cost** | **Financial<br>assets at<br>amortized cost** | **Financial assets**<br> **at FVTPL** | **Financial assets<br>at FVOCI** | **Derivatives<br>used for<br>hedging** | **Total** |
|  Cash and cash equivalents | W | 1095457 |  |  |  | 1095457 |
|  Trade and other receivables |  | 3294387 |  | 211963 |  | 3506350 |
|  Other financial assets |  | 80465 | 431829 | 1800896 | 220715 | 2533905 |
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| **Financial liabilities** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities at<br>amortized cost** | **Financial liabilities**<br> **at FVTPL** | **Derivatives<br>used for hedging** | **Others** | **Total** |
|  Trade and other payables <sup>1</sup>  | W | 4185665 |  |  |  | 4185665 |
|  Borrowings |  | 6809857 |  |  |  | 6809857 |
|  Other financial liabilities |  |  | 28 | 6626 |  | 6654 |
|  Lease liabilities |  |  |  |  | 691499 | 691499 |

---

<sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Financial assets** | **Financial<br>assets at<br>amortized cost** | **Financial<br>assets at<br>amortized cost** | **Financial<br>assets at<br>FVTPL** | **Financial assets<br>at FVOCI** | **Derivatives<br>used for<br>hedging** | **Total** |
|  Cash and cash equivalents | W | 1540570 |  |  |  | 1540570 |
|  Trade and other receivables |  | 3099178 |  | 114774 |  | 3213952 |
|  Other financial assets |  | 80465 | 456224 | 1458891 | 442144 | 2437724 |
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Financial liabilities** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities at<br>amortized cost** | **Financial<br>liabilities<br>at FVTPL** | **Derivatives<br>used for hedging** | **Others** | **Total** |
|  Trade and other payables <sup>1</sup>  | W | 4315375 |  |  |  | 4315375 |
|  Borrowings |  | 7871919 |  |  |  | 7871919 |
|  Other financial liabilities |  |  | 28 |  |  | 28 |
|  Lease liabilities |  |  |  |  | 759743 | 759743 |

---

<sup>1</sup> Amounts related to employee benefit plans are excluded in Trade and other payables. 

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**5.** **Trade and Other Receivables** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Trade and other receivables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Total amounts** | **Total amounts** | **Provision for<br>impairment** | **Present value<br>discount** | **Carrying<br>amount** |
|  **Current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 3115636 | (292626) | (7750) | 2815260 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 407495 | (34738) | (1562) | 371195 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 3523131 | (327364) | (9312) | 3186455 |
|  **Non-current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 234378 | (927) | (12612) | 220839 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 105472 | (314) | (6102) | 99056 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 339850 | (1241) | (18714) | 319895 |
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Total amounts** | **Total amounts** | **Provision for<br>impairment** | **Present value<br>discount** | **Carrying<br>amount** |
|  **Current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 2840837 | (290502) | (8749) | 2541586 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 399200 | (34376) | (1564) | 363260 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 3240037 | (324878) | (10313) | 2904846 |
|  **Non-current assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade receivables | W | 221495 | (927) | (14150) | 206418 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other receivables |  | 109723 | (430) | (6605) | 102688 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 331218 | (1357) | (20755) | 309106 |

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of other receivables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Loans | W | 31800 | 37005 |
|  Receivables |  | 262477 | 246303 |
|  Accrued income |  | 8709 | 1812 |
|  Refundable deposits |  | 202317 | 215634 |
|  Less: Provision for impairment |  | (35052) | (34806) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 470251 | 465948 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 September 30, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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.

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**6.** **Other Financial Assets and Liabilities** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of other financial assets and liabilities as of September 30, 2025 and December 31, 2024, are
as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  **Other financial assets** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at amortized cost <sup>1</sup>  | W | 80465 | 80465 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss <sup>2</sup>  |  | 431829 | 456224 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 1800896 | 1458891 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivatives used for hedging |  | 220715 | 442144 |
|  Less: Non-current |  | (2356164) | (2175177) |
|  Current | W | 177741 | 262547 |
|  **Other financial liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial liabilities at fair value through profit or loss | W | 28 | 28 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivatives used for hedging |  | 6626 |  |
|  Less: Non-current |  | (6654) | (28) |
|  Current | W |  |  |

---

<sup>1</sup> As of September 30, 2025, the Company's financial instruments amount to W 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. 

<sup>2</sup> As of September 30, 2025, the Company provided investment in Korea Software Financial Cooperative and others 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. 

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Debt instruments | W | 431829 | 456224 |
|  Less: Non-current |  | (431829) | (456224) |
|  Current | W |  |  |

---

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

2) The maximum exposure to credit risks debt instruments of financial assets at fair value through profit or loss is the carrying amount of each class of debt instruments above as of September 30, 2025. 

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Equity instruments (Listed) | W | 1659881 | 1317876 |
|  Equity instruments (Unlisted) |  | 141015 | 141015 |
|  Less: Non-current |  | (1800896) | (1458891) |
|  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. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Derivatives used for hedging

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  | **Assets** | **Assets** | **Liabilities** | **Assets** | **Liabilities** |
|  Currency swap <sup>1</sup>  | W | 220715 | 6626 | 442144 |  |
|  Less: Non-current |  | (123435) | (6626) | (260057) |  |
|  Current | W | 97280 |  | 182087 |  |

---

<sup>1</sup> The currency swap contract is to hedge the risk of volatility in cash flow from the borrowings due to changes in interest rate and foreign exchange rate and the expected maximum period for the Company to be exposed to risks of cash flow volatility by hedged items is until September 7, 2034. 

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

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

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

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2024** | **2024** | **2024** |
| **Type of transaction** | **Valuation<br>gain** | **Valuation<br>gain** | **Valuation<br>loss** | **Other<br>comprehensive<br>loss<sup>1</sup>** | **Valuation<br>gain** | **Valuation<br>loss** | **Other<br>comprehensive<br>loss<sup>1</sup>** |
|  Currency swap | W | 8115 | 87984 | 45284 | 61112 |  | 14718 |

---

<sup>1</sup> The amounts directly reflected in equity are before adjustments of deferred income tax. 

3) The effective portion recognized in profit or loss related to cash flow hedges amounts to valuation loss of W 43,651 million as other comprehensive income for the nine-month periods ended September 30, 2025 (nine-month period ended September 30, 2024: valuation gains of W 74,278 million). The ineffective portion recognized in profit or loss related to cash flow hedges amounts to valuation gains of W 485 million as current profit or loss for the nine-month periods ended September 30, 2025 (nine-month period ended September 30, 2024: W 1,618 million). In addition, the valuation loss reclassified from other comprehensive income to profit or loss amounts to W 88,935 million for the nine-month periods ended September 30, 2025 (nine-month period ended September 30, 2024: valuation gains of W 59,560 million). 

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

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Derivative liabilities held for trading <sup>1</sup>  | W | 28 | 28 |

---

<sup>1</sup> Derivative liabilities recognized in relation to acquisition of Epsilon Global Communications Pte. Ltd. (Note 15).

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**7.** **Inventories** 

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

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Acquisition cost** | **Acquisition cost** | **Valuation<br>allowance** | **Carrying<br>amount** | **Acquisition<br>cost** | **Valuation<br>allowance** | **Carrying<br>amount** |
|  Merchandise | W | 182195 | (26948) | 155247 | 285892 | (61214) | 224678 |

---

Cost of inventories recognized as expenses for the nine-month periods ended September 30, 2025 amounts to W 2,252,502 million (for the nine-month period ended September 30, 2024: W 1,930,432 million), and reversal valuation loss on inventory amounts to W 34,266 million for the nine-month periods ended September 30, 2025 (for the nine-month periods ended September 30, 2024: W24,216 million).

**8.** **Other Assets and Liabilities** 

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  **Other assets** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Advance payments | W | 39752 | 52289 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Prepaid expenses |  | 225788 | 97714 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Contract costs |  | 2174012 | 1802221 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Contract assets |  | 874598 | 735508 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Non-current |  | (801213) | (727772) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current | W | 2512937 | 1959960 |
|  **Other liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Advances received <sup>1</sup>  | W | 188658 | 215354 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Withholdings |  | 42554 | 25362 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Unearned revenue |  | 2157 | 828 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Lease liabilities |  | 691499 | 759743 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Contract liabilities |  | 225558 | 242898 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Non-current |  | (471111) | (545976) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current | W | 679315 | 698209 |

---

<sup>1</sup> The amounts include adjustments arising from adoption of Korean IFRS 1115 *Revenue from Contracts with Customers* (Note 19). 

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**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**9.** **Property and Equipment, Investment Properties, and Intangible Assets** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Changes in property and equipment for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning, net | W | 11477680 | 11492776 |
|  Acquisition and capital expenditure |  | 1396565 | 1558337 |
|  Disposal and termination |  | (51471) | (45868) |
|  Depreciation |  | (1836953) | (1807568) |
|  Transfer from (to) investment properties |  | (47318) | 46650 |
|  Others <sup>1</sup>  |  | (189781) | (58735) |
|  Ending, net | W | 10748722 | 11185592 |

---

<sup>1</sup> Amounts include transfers to intangible assets. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in investment properties for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning, net | W | 1114379 | 1191592 |
|  Depreciation |  | (35161) | (33669) |
|  Transfer from (to) property and equipment |  | 47318 | (46650) |
|  Ending, net | W | 1126536 | 1111273 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) As of September 30, 2025, the Company (Lessor) has entered into a non-cancellable operating lease contract for real estate. The future minimum lease payments under this contract amount to W 124,934 million for one year or less, W 248,901 million for more than one year and less than five years, W 437,758 million for over five years, and W 811,593 million in total.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Changes in intangible assets for the nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning, net | W | 1104680 | 1487848 |
|  Acquisition and capital expenditure <sup>1</sup>  |  | 198421 | 64506 |
|  Disposal and termination |  | (8833) | (9549) |
|  Amortization |  | (357410) | (353223) |
|  Ending, net | W | 936858 | 1189582 |

---

<sup>1</sup> Amounts include transfers from property and equipment. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) The carrying amount of goodwill and memberships assessed to have indefinite useful life and, therefore, not
subject to amortization is W 65,057 million (December 31, 2024: W 65,057 million) and W 56,483 million (December 31, 2024: W 54,717 million), respectively as of
September 30, 2025.

**10.** **Investments in Subsidiaries, Associates and Joint Ventures** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Carrying amounts in investments in subsidiaries, associates and joint ventures as of September 30, 2025
and December 31, 2024, is as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Subsidiaries | W | 4396042 | 4419598 |
|  Associates and joint ventures |  | 411594 | 411588 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 4807636 | 4831186 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

1) Investments in subsidiaries as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* |  |  | **Carrying amount** | **Carrying amount** | **Carrying amount** |
| *(In millions of Korean won)* | **Location** | **Percentage of<br>ownership (%)** | **September 30,<br>2025** | **September 30,<br>2025** | **December 31,<br>2024** |
|  KT Estate Inc. | Korea | 100.0% | W | 1084522 | 1084522 |
|  KT Sat Co., Ltd. | Korea | 100.0% |  | 390530 | 390530 |
|  KTCS Corporation <sup>1</sup>  | Korea | 8.4% |  | 6427 | 6427 |
|  KTIS Corporation <sup>1</sup>  | Korea | 33.3% |  | 30633 | 30633 |
|  KT Skylife Co., Ltd. | Korea | 50.5% |  | 311696 | 311696 |
|  BC Card Co., Ltd. | Korea | 69.5% |  | 633004 | 633004 |
|  KT M&S Co., Ltd. | Korea | 100.0% |  | 26914 | 26914 |
|  KT Alpha Co., Ltd. | Korea | 70.5% |  | 130924 | 130924 |
|  KT Telecop Co., Ltd. | Korea | 92.7% |  | 138541 | 138541 |
|  KT Nasmedia, Inc. (formerly. Nasmedia, Co., Ltd.) <sup>1</sup>  | Korea | 44.1% |  | 23051 | 23051 |
|  KTDS Co., Ltd. | Korea | 91.6% |  | 19616 | 19616 |
|  KTGDH Co., Ltd. | Korea | 100.0% |  | 2745 | 2745 |
|  KT Sports Co., Ltd. | Korea | 52.6% |  | 27327 | 27327 |
|  KT M Mobile Co., Ltd. | Korea | 100.0% |  | 102237 | 102237 |
|  KT Service Bukbu Co., Ltd. | Korea | 67.3% |  | 3873 | 3873 |
|  KT Service Nambu Co., Ltd. | Korea | 94.8% |  | 16901 | 10160 |
|  KT Strategic Investment Fund No.3 | Korea | 86.7% |  |  | 130 |
|  PlayD Co., Ltd. <sup>2</sup>  | Korea |  |  |  | 20000 |
|  KT MOS Bukbu Co., Ltd. | Korea | 100.0% |  | 6334 | 6334 |
|  KT MOS Nambu Co., Ltd. | Korea | 98.4% |  | 4267 | 4267 |
|  Next Connect PFV | Korea | 100.0% |  | 24250 | 24250 |
|  KT Strategic Investment Fund No.5 | Korea | 95.0% |  | 17575 | 19000 |
|  KT Engineering Co., Ltd. | Korea | 59.8% |  | 28000 | 28000 |
|  KT Studio Genie Co., Ltd. | Korea | 90.9% |  | 283620 | 283620 |
|  KT ES Pte. Ltd. | Singapore | 68.8% |  | 16003 | 16003 |
|  Altimedia Corporation | Korea | 100.0% |  | 22000 | 22000 |
|  KT Cloud Co., Ltd. | Korea | 92.6% |  | 901504 | 901504 |
|  kt netcore Co. Ltd | Korea | 100.0% |  | 61000 | 61000 |
|  kt p&m Co. Ltd | Korea | 100.0% |  | 10000 | 10000 |
|  Others |  |  |  | 72548 | 81290 |
|  Total |  |  | W | 4396042 | 4419598 |

---

<sup>1</sup> As of September 30, 2025, although the sum of percentage of ownership of the Company and its subsidiaries is 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. 

<sup>2</sup> As of September 30, 2025, this entity is excluded from subsidiaries due to loss of control.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

2) Investments in associates and joint ventures as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Location** | **Percentage of<br>ownership (%)** | **Carrying amount** | **Carrying amount** | **Carrying amount** |
| *(In millions of Korean won)* | **Location** | **Percentage of<br>ownership (%)** | **September 30,<br>2025** | **September 30,<br>2025** | **December 31,<br>2024** |
|  KIF Investment Fund | Korea | 33.3% | W | 115636 | 115636 |
|  HD Hyundai Robotics Co., Ltd. <sup>1</sup>  | Korea | 10.0% |  | 50000 | 50000 |
|  Megazone Cloud Corporation <sup>1</sup>  | Korea | 6.7% |  | 130001 | 130001 |
|  KT-DSC Creative Economy YouthStart-up Investment Fund <sup>1</sup>  | Korea | 17.1% |  | 1665 | 2055 |
|  Others |  |  |  | 114292 | 113896 |
|  Total |  |  |  | 411594 | 411588 |

---

<sup>1</sup> The Company holds less than 20% interest in the investees as of September 30, 2025, but the investments are classified as investments in associates as the Company exerts significant influence over the operational and financial policies. 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in investments in subsidiaries, associates and joint ventures for the nine-month periods ended
September 30, 2025 and 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning | W | 4831186 | 4796606 |
|  Acquisition |  | 5803 | 75670 |
|  Disposal <sup>1</sup>  |  | (29353) | (41820) |
|  Others |  |  | (3600) |
|  Ending | W | 4807636 | 4826856 |

---

<sup>1</sup> As of September 30, 2024, the Company exchanged subsidiary corporate investment shares in Lolab Co., Ltd. for redeemable convertible preferred shares of TeamFresh Corp.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**11.** **Trade and Other Payables** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of trade and other payables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  **Current liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade payables | W | 814062 | 517879 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other payables |  | 3470350 | 3808200 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 4284412 | 4326079 |
|  **Non-current liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other payables | W | 219378 | 479416 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of other payables as of September 30, 2025 and December 31, 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Non-trade payable | W | 2081643 | 2917086 |
|  Accrued expenses |  | 1146216 | 901219 |
|  Operating deposits |  | 365673 | 375105 |
|  Others |  | 96196 | 94206 |
|  Less: Non-current |  | (219378) | (479416) |
|  Current | W | 3470350 | 3808200 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**12.** **Borrowings** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of borrowings as of September 30, 2025 and December 31, 2024, are as follows:

**1)** **Debentures** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest rates** | **Foreign<br>currency** | **Korean won** | **Korean won** | **Foreign<br>currency** | **Korean won** | **Korean won** |
|  MTNP notes <sup>1</sup>  | Sep. 7, 2034 | 6.500% | USD 100,000 | W | 140220 | USD 100,000 | W | 147000 |
|  MTNP notes | Jul. 18, 2026 | 2.500% | USD 400,000 |  | 560880 | USD 400,000 |  | 588000 |
|  MTNP notes | Sep. 1, 2025 |  |  |  |  | USD 400,000 |  | 588000 |
|  MTNP notes | Jan. 21, 2027 | 1.375% | USD 300,000 |  | 420660 | USD 300,000 |  | 441000 |
|  MTNP notes | Aug. 8, 2025 |  |  |  |  | USD 500,000 |  | 735000 |
|  MTNP notes | Feb. 2, 2028 | 4.125% | USD 500,000 |  | 701100 | USD 500,000 |  | 735000 |
|  MTNP notes | Mar. 5, 2027 | 1.217% | JPY 23,300,000 |  | 219889 |  |  |  |
|  MTNP notes | Mar. 7, 2028 | 1.367% | JPY 6,700,000 |  | 63230 |  |  |  |
|  MTNP notes | Jan. 3, 2029 | 4.375% | USD 500,000 |  | 701100 |  |  |  |
|  MTNP notes <sup>2</sup>  | Sep. 29, 2028 | Compounded SOFR<br> (3M)+0.66% | USD 200,000 |  | 280440 |  |  |  |
|  The 183-3rd Public bond | Dec. 22, 2031 | 4.270% |  |  | 160000 |  |  | 160000 |
|  The 184-3rd Public bond | Apr. 10, 2033 | 3.170% |  |  | 100000 |  |  | 100000 |
|  The 186-4th Public bond | Jun. 26, 2034 | 3.695% |  |  | 100000 |  |  | 100000 |
|  The 187-4th Public bond | Sep. 2, 2034 | 3.546% |  |  | 100000 |  |  | 100000 |
|  The 188-2nd Public bond | Jan. 29, 2025 |  |  |  |  |  |  | 240000 |
|  The 188-3rd Public bond | Jan. 29, 2035 | 2.706% |  |  | 50000 |  |  | 50000 |
|  The 189-3rd Public bond | Jan. 28, 2026 | 2.203% |  |  | 100000 |  |  | 100000 |
|  The 189-4th Public bond | Jan. 28, 2036 | 2.351% |  |  | 70000 |  |  | 70000 |
|  The 190-3rd Public bond | Jan. 30, 2028 | 2.947% |  |  | 170000 |  |  | 170000 |
|  The 190-4th Public bond | Jan. 30, 2038 | 2.931% |  |  | 70000 |  |  | 70000 |
|  The 191-3rd Public bond | Jan. 15, 2029 | 2.160% |  |  | 110000 |  |  | 110000 |
|  The 191-4th Public bond | Jan. 14, 2039 | 2.213% |  |  | 90000 |  |  | 90000 |
|  The 192-3rd Public bond | Oct. 11, 2029 | 1.622% |  |  | 50000 |  |  | 50000 |
|  The 192-4th Public bond | Oct. 11, 2039 | 1.674% |  |  | 110000 |  |  | 110000 |
|  The 193-2nd Public bond | Jun. 17, 2025 |  |  |  |  |  |  | 70000 |
|  The 193-3rd Public bond | Jun. 17, 2030 | 1.608% |  |  | 20000 |  |  | 20000 |
|  The 193-4th Public bond | Jun. 15, 2040 | 1.713% |  |  | 60000 |  |  | 60000 |
|  The 194-2nd Public bond | Jan. 27, 2026 | 1.452% |  |  | 140000 |  |  | 140000 |
|  The 194-3rd Public bond | Jan. 27, 2031 | 1.849% |  |  | 50000 |  |  | 50000 |
|  The 194-4th Public bond | Jan. 25, 2041 | 1.976% |  |  | 80000 |  |  | 80000 |
|  The 195-2nd Public bond | Jun. 10, 2026 | 1.806% |  |  | 80000 |  |  | 80000 |
|  The 195-3rd Public bond | Jun. 10, 2031 | 2.168% |  |  | 40000 |  |  | 40000 |
|  The 196-1st Public bond | Jan. 27, 2025 |  |  |  |  |  |  | 270000 |
|  The 196-2nd Public bond | Jan. 27, 2027 | 2.637% |  |  | 100000 |  |  | 100000 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Type** | **Maturity** | **Annual interest<br>rates** | **Foreign<br>currency** | **Korean won** | **Korean won** | **Foreign<br>currency** | **Korean won** | **Korean won** |
|  The 196-3rd Public bond | Jan. 27, 2032 | 2.741% |  | W | 30000 |  | W | 30000 |
|  The 197-1st Public bond | Jun. 27, 2025 |  |  |  |  |  |  | 280000 |
|  The 197-2nd Public bond | Jun. 29, 2027 | 4.188% |  |  | 120000 |  |  | 120000 |
|  The 198-1st Public bond | Jan. 10, 2025 |  |  |  |  |  |  | 70000 |
|  The 198-2nd Public bond | Jan. 12, 2026 | 3.869% |  |  | 150000 |  |  | 150000 |
|  The 198-3rd Public bond | Jan. 12, 2028 | 3.971% |  |  | 80000 |  |  | 80000 |
|  The 199-1st Public bond | Jul. 11, 2025 |  |  |  |  |  |  | 85000 |
|  The 199-2nd Public bond | Jul. 10, 2026 | 4.146% |  |  | 160000 |  |  | 160000 |
|  The 199-3rd Public bond | Jul. 12, 2028 | 4.221% |  |  | 155000 |  |  | 155000 |
|  The 200-1st Public bond | Feb. 27, 2026 | 3.552% |  |  | 120000 |  |  | 120000 |
|  The 200-2nd Public bond | Feb. 26, 2027 | 3.608% |  |  | 200000 |  |  | 200000 |
|  The 200-3rd Public bond | Feb. 27, 2029 | 3.548% |  |  | 80000 |  |  | 80000 |
|  The 201-1st Public bond | Dec. 2, 2027 | 2.899% |  |  | 130000 |  |  | 130000 |
|  The 201-2nd Public bond | Dec. 2, 2029 | 2.918% |  |  | 70000 |  |  | 70000 |
|  The 201-3rd Public bond | Dec. 2, 2034 | 3.057% |  |  | 100000 |  |  | 100000 |
|  | Subtotal |  |  |  | 6332519 |  |  | 7494000 |
|  Less: Current portion |  |  |  |  | (1309834) |  |  | (2333711) |
|  Discount on bonds |  |  |  |  | (23155) |  |  | (23068) |
|  | Total |  |  | W | 4999530 |  | W | 5137221 |

---

<sup>1</sup> As of September 30, 2025, the Company has outstanding notes in the amount of USD 100 million with fixed 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. 

<sup>2</sup> As of September 30, 2025, the interest rate for Daily SOFR rate is approximately 4.24%. 

**2)** **Long-Term Borrowings** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* |
| **Financial institution** | **Type** | **Maturity** | **Annual**<br> **interest<br>rates** | **September 30,<br>2025** | **September 30,<br>2025** | **December 31,**<br> **2024** |
|  Export-Import Bank of Korea | Inter-Korean Cooperation Fund <sup>1</sup> | Jul. 10, 2026 | 1.000% | W | 493 | 987 |
|  | Long-term commercial papers | Feb. 26, 2027 | 3.020% |  | 100000 |  |
|  CA-CIB |  |  |  |  |  |  |
|  | Long-term commercial papers | May. 28, 2027 | 3.820% |  | 100000 | 100000 |
|  JPM | Long-term commercial papers | Feb. 28, 2025 |  |  |  | 100000 |
|  | Long-term commercial papers | Feb. 26, 2027 | 2.980% |  | 100000 |  |
|  DBS | Long-term commercial papers | May. 28, 2027 | 3.820% |  | 100000 | 100000 |
|  | Long-term commercial papers | Aug. 9, 2027 |  |  |  |  |
|  Shinhan Bank |  |  | 3.390% |  | 50000 | 100000 |
|  | Long-term commercial papers | Feb. 26, 2027 | 3.390% |  | 50000 |  |
|  | Subtotal |  |  |  | 500493 | 400987 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* | *(In millions of Korean won and foreign currencies in thousands)* |
| **Financial institution** | **Type** | **Maturity** | **Annual**<br> **interest<br>rates** | **September 30,**<br> **2025** | **September 30,**<br> **2025** | **December 31,**<br> **2024** |
|  | Less: Current portion |  |  |  | (493) | (100493) |
|  | Net |  |  | W | 500000 | 300494 |

---

<sup>1</sup> The above Inter-Korean Cooperation Fund is repayable in installments over 13 years after a 7-year grace period.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Repayment schedule of the Company's debentures and borrowings including the portion of current
liabilities as of September 30, 2025, is as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **Bonds** | **Bonds** | **Bonds** | **Bonds** |  |  |
|  | **In local<br>currency** | **In local<br>currency** | **In foreign<br>currency** | **Sub-**<br> **total** | **Borrowings** | **Total** |
|  Oct.1, 2025 ~ Sep. 30, 2026 | W | 750000 | 560880 | 1310880 | 493 | 1311373 |
|  Oct.1, 2026 ~ Sep. 30, 2027 |  | 420000 | 640549 | 1060549 | 500000 | 1560549 |
|  Oct.1, 2027 ~ Sep. 30, 2028 |  | 535000 | 1044770 | 1579770 |  | 1579770 |
|  Oct.1, 2028 ~ Sep. 30, 2029 |  | 190000 | 701100 | 891100 |  | 891100 |
|  After Oct.1, 2029 |  | 1350000 | 140220 | 1490220 |  | 1490220 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 3245000 | 3087519 | 6332519 | 500493 | 6833012 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**13.** **Provisions** 

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** |
| *(In millions of Korean won)* | **Litigation** | **Litigation** | **Restoration cost** | **Others** | **Total** |
|  **Beginning balance** | W | 21590 | 125150 | 39732 | 186472 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (transfer) |  | 27 | 3081 | 8284 | 11392 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Usage |  | (28) | (4741) | (7822) | (12591) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reversal |  |  | (322) |  | (322) |
|  **Ending balance** | W | 21589 | 123168 | 40194 | 184951 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Current |  | (21589) | (27232) | (39579) | (88400) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-current |  |  | 95936 | 615 | 96551 |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** |
| *(In millions of Korean won)* | **Litigation** | **Litigation** | **Restoration cost** | **Others** | **Total** |
|  **Beginning balance** | W | 25879 | 115747 | 40728 | 182354 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase (transfer) |  | 26 | 9436 | (151) | 9311 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Usage |  | (1222) | (762) | (210) | (2194) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reversal |  | (3093) | (552) |  | (3645) |
|  **Ending balance** | W | 21590 | 123869 | 40367 | 185826 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Less: Current |  | (21590) | (22619) | (40367) | (84576) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-current |  |  | 101250 |  | 101250 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**14.** **Net Defined Benefit Liabilities** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The amounts recognized in the statements of financial position as of September 30, 2025 and
December 31, 2024, are determined as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Present value of defined benefit obligations | W | 1425045 | 1344701 |
|  Fair value of plan assets |  | (1291238) | (1293619) |
|  Liabilities, net | W | 133807 | 51082 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Changes in the defined benefit obligations for the nine-month periods ended September 30, 2025 and 2024,
are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning | W | 1344701 | 1548588 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current service cost |  | <sup>73,547</sup> | 84265 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest expense |  | 34041 | 46235 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Benefits paid |  | (27244) | (98754) |
|  Ending | W | 1425045 | 1580334 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) Changes in the fair value of plan assets for the nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Beginning | W | 1293619 | 1609178 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest income |  | 29739 | 48125 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Remeasurements on plan assets |  | (253) | 1054 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Benefits paid |  | (31867) | (95940) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  | 37900 |
|  Ending | W | 1291238 | 1600317 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Amounts recognized in the separate statements of profit or loss for the nine-month periods
ended September 30, 2025 and 2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Current service cost | W | 73547 | 84265 |
|  Net interest expense |  | 4302 | (1890) |
|  Account transfers |  | (9106) | (11727) |
|  Total expense | W | 68743 | 70648 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**15.** **Commitments and Contingencies** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) As of September 30, 2025, major Covenants with local financial institutions are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won and*<br> *foreign currencies in thousands)* | **Financial institution** | **Limit** | **Limit** | **Used amount** |
|  Bank overdraft | Kookmin Bank and others | W | 360000 |  |
|  Working capital loan | Korea Development Bank and others |  | 1130050 | 100000 |
|  Inter-Korean Cooperation Fund | Export-Import Bank of Korea |  | 37700 | 493 |
|  Economic Cooperation Business Insurance | Export-Import Bank of Korea |  | 3240 | 1732 |
|  Collateralized loan backed by electronic accounts receivable-trade | Kookmin Bank and others |  | 347000 | 106735 |
|  Plus electronic notes payable | Industrial Bank of Korea |  | 50000 | 995 |
|  Derivatives transaction limit | Korea Development Bank and others |  | USD 1,920,000 | USD 1,920,000 |
|  | Shinhan Bank and others |  | JPY 30,000,000 | JPY 30,000,000 |
|  |  |  | KRW 1,927,990 | 209955 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total |  |  | USD 1,920,000 | 1920000 |
|  |  |  | JPY 30,000,000 | 30000000 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) As of September 30, 2025, guarantees received from financial institutions are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won and*<br> *foreign currencies in thousands)* | **Warranty details** | **Limit** | **Limit** |
|  Hana Bank | Comprehensive credit line | W | 2900 |
|  |  |  | USD 8,700 |
|  Shinhan Bank | Guarantee for payment in foreign currency and others |  | USD 33,416 |
|  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 and others |  | 1115456 |
|  Information & Communication Financial Cooperative | Advance payment/other guarantee |  | 700000 |
|  Seoul Guarantee Insurance Company | Performance guarantee and others |  | 24566 |
|  | Total |  | KRW 1,842,922 |
|  |  |  | USD 50,302 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) The Company is jointly and severally obligated with KT Sat Co., Ltd. to pay KT Sat Co., Ltd.'s
liabilities incurred prior to its spin-off. As of September 30, 2025, the Company and KT Sat Co., Ltd. are jointly and severally liable for reimbursement of W 428 million (as of
December 31, 2024: W 433 million).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) For the nine-month period ended September 30, 2025, the Company entered into agreements with
Securitization Specialty Companies (2025: First 5G 79th to 82nd Securitization Specialty Co., Ltd., 2024: First 5G 73rd to 78th Securitization Specialty Co., Ltd.) and disposed of its trade receivables related to handset sales. The Company also made
asset 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) As of September 30, 2025, the Company is a defendant in 102 lawsuits with a total claimed amount of W 137,796 million (as of December 31, 2024: W 124,384 million). As of September 30, 2025, litigation provisions of W 21,589 million for pending lawsuits and unasserted 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 September 30, 2025 (Note 13).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) Under the agreement of bond issuance and borrowings, the Company is required to maintain certain financial
ratios such as debt-to-equity ratio, use the funds for the designated purpose and report to the creditors periodically. The covenant also contains restrictions on
provision of additional collateral and disposal of certain assets.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) As of September 30, 2025, the Company participates in Algerie Sidi Abdela new town development consortium
(percentage of ownership: 2.5%) and has joint liability with other consortium participants.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8) As of September 30, 2025, the contract amount of properties and equipment and intangible assets
acquisition agreements made but not yet recognized amounts to W 339,873 million (as of December 31, 2024: W 344,566 million).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9) The Company entered into an agreement with financial investors of Epsilon Global Communications Pte., Ltd.
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,
Drag-Along Right, or the right to sell shares for the convertible preferred shares they hold (Note 6).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10) The Company has an obligation for additional contributions as per agreement to Storm Ventures FUND VII and
others. As of September 30, 2025, remaining amounts of USD 27,650 thousand and JPY 160,000 thousand will be invested through the Capital Call method in the future.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11) The Company has an obligation of W 470,160 million (100%) to provide financial support as
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.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12) The Company entered into a stock sale contract with HYUNDAI MOBIS and HYUNDAI MOTOR 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, HYUNDAI MOBIS and HYUNDAI MOTOR COMPANY may exercise a preferential purchase right to designate a buyer with priority.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13) The Company entered into an agreement with equity investors who participated in the equity acquisition contract
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
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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14) As of September 30, 2025, the Company has the obligation of paying Minimum Guarantee as utilizing product
bundling of Tving Co., Ltd., and the right to be paid a certain proportion of the excess as per agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15) As of September 30, 2025, the Company is in the process of exercising a put option on all of its shares in
KT Rwanda Networks Ltd. under the shareholders' agreement with the Rwandan government.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16) Details of investment properties provided as collateral as September 30, 2025 and 2024, are as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(in millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
| **Collateral** | **Carrying<br>amount** | **Carrying<br>amount** | **Secured<br>amount** | **Related account** | **Related<br>amount** | **Mortgagee** |
|  Land and buildings | W | 118757 | 36017 | Deposit received | 30165 | leaseholder |
| *(in millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
| **Collateral** | **Carrying<br>amount** | **Carrying<br>amount** | **Secured<br>amount** | **Related account** | **Related<br>amount** | **Mortgagee** |
|  Land and buildings | W | 177229 | 35573 | Deposit received | 29899 | leaseholder |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17) The Company has established a supplier finance agreement with certain suppliers, under which participating
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
September 30, 2025, all financial liabilities subject to the supplier finance agreement are included in trade and other payables, and the carrying amount is W 22,919 million (December 31, 2024: W 55,815
million). None of 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 supplier finance agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18) As of September 30, 2025, the Group became aware of damage caused by unauthorized small sum-payments and security incidents, and is currently under investigation by the Personal Information Protection Commission regarding the timing and circumstances of the incident. As the investigation is ongoing,
the Group cannot reasonably estimate any obligations that may arise in connection with this matter.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The separate statements of financial position show the following amounts relating to leases:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Right-of-use assets |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Property and buildings | W | 760975 | 800961 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Machinery and communication line facilities |  | 48948 | 38977 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 14464 | 56361 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 824387 | 896299 |

---

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Lease liabilities <sup>1</sup>  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Current | W | 261031 | 259747 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Non-current |  | 430468 | 499996 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 691499 | 759743 |

---

<sup>1</sup> Included in the line item other current liabilities and non-current liabilities in the separate statements of financial position (Note 8).

For the nine-month periods ended September 30, 2025 and 2024, right-of-use assets related to leases increased by W 213,680 million and W 212,916 million, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) The separate statements of profit or loss show the following amounts relating to leases:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Depreciation of right-of-use assets |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Property and building | W | 221118 | 214554 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Machinery and communication line facilities |  | 18524 | 18976 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 7032 | 23834 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 246674 | 257364 |
|  Interest expense relating to lease liabilities |  | 17689 | 27045 |
|  Expense relating to Short-term leases |  | 1250 | 3403 |
|  Expense relating to leases of low-value assets that are not short-term leases |  | 8069 | 7834 |

---

The total cash outflow for leases for the nine-month periods ended September 30, 2025 and 2024 is W 266,058 million and W 280,116 million, respectively.

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**17.** **Retained Earnings** 

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

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Legal reserve <sup>1</sup>  | W | 782249 | 782249 |
|  Voluntary reserves <sup>2</sup>  |  | 4651362 | 4651362 |
|  Unappropriated retained earnings |  | 6868037 | 6284318 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 12301648 | 11717929 |

---

<sup>1</sup> The Commercial Code of the Republic of Korea requires the Company to appropriate, as a legal 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 of the Company's Board of Directors or used to reduce accumulated deficits, if any, with the ratification of the Company's majority shareholders. 

<sup>2</sup> The reserves of research and development of human resources in other surplus reserves are separately 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 be paid out as dividends. 

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**18.** **Other Components of Equity** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Company's other components of equity as of September 30, 2025 and December 31, 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Treasury stock | W | (461135) | (215210) |
|  Gain(Loss) on disposal of treasury stock |  | (93) | (57) |
|  Share-based compensation |  | 4688 | 7106 |
|  Other |  | (180914) | (180863) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | (637454) | (389024) |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) As of September 30, 2025 and December 31, 2024, details of treasury stock, are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  Number of shares *(in shares)*  |  | 10926622 |  | 6188739 |
|  Amount *(in millions of Korean won)*  | W | 461135 |  | 215210 |

---

Treasury stock held as of September 30, 2025, is expected to be used for stock compensation for the Company's directors, employees, and for other purposes.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**19.** **Revenue from Contracts with Customers and Relevant Contract Assets and Liabilities** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Company has recognized the following amounts relating to revenue in the separate statement of profit or
loss:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Revenue from contracts with customers | W | 5042482 | 14371984 | 4702510 | 13828806 |
|  Revenue from other sources |  | 66482 | 191810 | 62473 | 179301 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 5108964 | 14563794 | 4764983 | 14008107 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Operating revenues for the three- and nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Services provided | W | 4179922 | 12356115 | 4069040 | 12157646 |
|  Sales of goods |  | 929042 | 2207679 | 695943 | 1850461 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 5108964 | 14563794 | 4764983 | 14008107 |

---

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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) The Contract assets, liabilities and deferred revenue recognized in relation to the revenues from contracts
with customers, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Contract assets <sup>1</sup>  | W | 1020287 | 863884 |
|  Contract liabilities <sup>1</sup>  |  | 243388 | 268958 |
|  Deferred revenue <sup>2</sup>  |  | 83044 | 74275 |

---

<sup>1</sup> The Company recognized contract assets of W 145,689 and contract liabilities of W 17,830 million for long-term construction contracts as of September 30, 2025 (As of December 31, 2024: contract assets and liabilities of 128,376 million and W 26,060 million, respectively). The Company recognizes contract assets as trade receivables and other receivables, and contract liabilities as other current liabilities. 

<sup>2</sup> Deferred revenue related to government grants is excluded.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) The contract costs recognized as assets are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** |
|  Incremental cost of obtaining a contract | W | 2019703 | 1650500 |
|  Costs to fulfil a contract |  | 154309 | 151721 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 2174012 | 1802221 |

---

The Company recognized W 1,432,034 million as operating expenses for the nine-month period ended September 30, 2025 (nine-month period ended September 30, 2024: W 1,378,068 million) related to contract cost assets.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) For the three- and nine-month periods ended September 30, 2025 and 2024, revenue recognized from contract
liabilities and deferred revenue carried-forward, is as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Revenue recognized from the beginning balance of contract liabilities |  |  |  |  |  |
|  Allocation of the transaction price | W | 34770 | 132235 | 38343 | 145994 |
|  Deferred revenue of joining/installment fees |  | 9343 | 30807 | 8673 | 28898 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 44113 | 163042 | 47016 | 174892 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**20.** **Operating Expenses** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Operating expenses for the three- and nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-**<br> **month** | **Three-**<br> **month** | **Nine-**<br> **month** | **Three-<br>month** | **Nine-**<br> **month** |
|  Employee benefit cost | W | 492783 | 1416002 | 534586 | 1706618 |
|  Depreciation |  | 609485 | 1836144 | 607051 | 1811257 |
|  Depreciation of right-of-use assets |  | 82149 | 246674 | 86997 | 257364 |
|  Amortization of intangible assets |  | 121303 | 353598 | 111789 | 346467 |
|  Commissions |  | 595224 | 1709143 | 491112 | 1439334 |
|  Interconnection charges |  | 100532 | 298029 | 107890 | 319981 |
|  International interconnection fees |  | 33492 | 94998 | 39315 | 102600 |
|  Purchase of inventories |  | 918837 | 2148805 | 597807 | 1802681 |
|  Changes of inventories |  | 11497 | 69431 | 139551 | 103534 |
|  Sales commission |  | 669840 | 1951150 | 623889 | 1863071 |
|  Service cost |  | 243475 | 674897 | 214627 | 615753 |
|  Purchase of contents |  | 180439 | 533515 | 177134 | 526725 |
|  Utilities |  | 110345 | 295274 | 108165 | 297153 |
|  Taxes and dues |  | 50388 | 149546 | 50866 | 152038 |
|  Rent |  | 31071 | 91806 | 30681 | 89859 |
|  Insurance premium |  | 14685 | 37760 | 15840 | 39955 |
|  Installation fee |  | 120577 | 357756 | 118748 | 346796 |
|  Advertising expenses |  | 36849 | 97403 | 38996 | 96722 |
|  Research and development expenses |  | 79545 | 221687 | 53965 | 171589 |
|  Allowance for bad debts |  | 11056 | 34933 | 11945 | 37242 |
|  Others |  | 254524 | 735526 | 265171 | 789879 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 4768096 | 13354077 | 4426125 | 12916618 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of employee benefits for the three- and nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Salaries & Wages | W | 456143 | 1309615 | 490111 | 1572225 |
|  Post-employment benefits (defined benefit plan) |  | 23161 | 68743 | 23308 | 70648 |
|  Post-employment benefits (defined contribution plan) |  | 9844 | 27124 | 14919 | 43322 |
|  Share-based payment |  | 1616 | 4982 | 1751 | 3489 |
|  Others |  | 2019 | 5538 | 4497 | 16934 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 492783 | 1416002 | 534586 | 1706618 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**21.** **Other Income and Other Expenses** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Other income for the three- and nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-<br>month** | **Three-<br>month** | **Nine-<br>month** | **Three-<br>month** | **Nine-<br>month** |
|  Gain on disposal of property and equipment | W | 2564 | 12739 | 8721 | 31000 |
|  Gain on disposal of right-of-use assets |  | 1068 | 2039 | 525 | 2084 |
|  Gain on disposal of intangible assets |  |  | 1641 |  | 99 |
|  Compensation on impairment of property and equipment |  | 43643 | 58324 | 40712 | 106312 |
|  Gain on disposal of investments in subsidiaries and associates |  |  | 6725 | 34421 | 65303 |
|  Dividends received |  | 10820 | 43967 | 2267 | 41413 |
|  Gain on government subsidies |  | 357 | 474 | 9102 | 23309 |
|  Others |  | 4789 | 15521 | 8584 | 20936 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 63241 | 141430 | 104332 | 290456 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Other expenses for the three- and nine-month periods ended September 30, 2025 and 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-<br>month** | **Three-<br>month** | **Nine-<br>month** | **Three-<br>month** | **Nine-<br>month** |
|  Loss on disposal of property and equipment | W | 8361 | 31514 | 10702 | 43260 |
|  Loss on disposal of right-of-use assets |  | 883 | 2119 | 148 | 1421 |
|  Loss on disposal of intangible assets |  | 1834 | 6531 | 415 | 7532 |
|  Loss on disposal of investments in subsidiaries and associate |  | 251 | 251 |  | 3154 |
|  Donations |  | 1080 | 4740 | 30 | 2715 |
|  Others |  | 9062 | 26870 | 28680 | 68084 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 21471 | 72025 | 39975 | 126166 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**22.** **Finance Income and Costs** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Details of financial income for the three- and nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Interest income | W | 46471 | 139137 | 53152 | 166925 |
|  Gain on foreign currency transactions |  | 74187 | 80537 | 1842 | 6608 |
|  Gain on foreign currency translation |  | (161311) | 98242 | (3355) | 15712 |
|  Gain on derivative transactions |  | 11784 | 11784 |  |  |
|  Gain on valuation of derivatives |  | 8115 | 8115 | (136699) | 61112 |
|  Dividends income |  | 13819 | 51802 | 11691 | 51339 |
|  Gain on disposal of financial instruments |  |  | 140 | 1510 | 6500 |
|  Gain on valuation of financial instruments |  |  | 1159 |  | 2746 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | (6935) | 390916 | (71859) | 310942 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Details of financial costs for the three- and nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Interest expenses | W | 57608 | 186451 | 61807 | 200368 |
|  Loss on foreign currency transactions |  | 2639 | 8441 | 1401 | 5404 |
|  Loss on foreign currency translation |  | 18655 | 41692 | (142285) | 62865 |
|  Loss on derivative transactions |  | 74791 | 78515 | 129 | 129 |
|  Loss on valuation of derivatives |  | (159395) | 87984 | (193) |  |
|  Loss on disposal of trade receivables |  | 1189 | 4650 | 1149 | 4736 |
|  Loss on valuation of financial instruments |  |  | 10144 |  | 7057 |
|  Loss on disposal of financial instruments |  |  | 1193 | 1335 | 2886 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | (4513) | 419070 | (76657) | 283445 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**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 19.0%.

**24.** **Earnings per Share** 

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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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 Company as treasury stock.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | **2025** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Profit attributable to ordinary shares<br> *(In millions of Korean won)* | W | 289621 | 1013064 | 309792 | 978323 |
|  Weighted average number of ordinary shares outstanding <br> *(In number of shares)*  |  | 241382469 | 243633295 | 245825775 | 245937306 |
|  Basic earnings per share <br> *(In Korean won)*  | W | 1200 | 4158 | 1260 | 3978 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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** | **2025** | **2025** | **2024** | **2024** |
|  | **Three-month** | **Three-month** | **Nine-month** | **Three-month** | **Nine-month** |
|  Profit attributable to ordinary shares<br> *(In millions of Korean won)* | W | 289621 | 1013064 | 309792 | 978323 |
|  Diluted profit attributable to ordinary shares<br> *(In millions of Korean won)* |  | 289621 | 1013064 | 309792 | 978323 |
|  Number of dilutive potential ordinary shares outstanding<br> *(In number of shares)* |  | 11767 | 47171 | 99797 | 77760 |
|  Weighted average number of ordinary shares used for calculating diluted earnings per share<br> *(In number of shares)* |  | 241394236 | 243680466 | 245925572 | 246015066 |
|  Diluted earnings per share<br> *(In Korean won)* | W | 1200 | 4157 | 1260 | 3977 |

---

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.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**25.** **Cash Generated from Operations** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Cash flows from operating activities for the nine-month periods ended September 30, 2025 and 2024, are as
follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
| **1. Profit for the period** | W | 1013064 | 978323 |
| **2. Adjustments for:** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Income tax expense |  | 237904 | 304953 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest income |  | (139137) | (166925) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest expense |  | 186451 | 200368 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Dividend income |  | (95769) | (92752) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Depreciation |  | 1872114 | 1841237 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Amortization of intangible assets |  | 357410 | 353223 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Depreciation of right-of-use assets |  | 246674 | 257364 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Provisions for post-employment benefits (defined benefits) |  | 77849 | 82375 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Allowance for bad debts |  | 44947 | 53909 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Gain on disposal of investments in subsidiaries, associates and joint ventures |  | (6474) | (62149) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss on disposal of property and equipment |  | 18775 | 12260 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss on disposal of intangible assets |  | 4890 | 7433 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on disposal of right-of-use assets |  | 80 | (663) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on foreign currency translation |  | (56550) | 47153 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on valuation of derivatives, net |  | 146600 | (60983) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss on valuation of financial assets at fair value through profit or loss |  | 8985 | 4311 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loss (Gain) on disposal of financial assets at fair value through profit or loss |  | 1046 | (3935) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | (82710) | (13331) |
| **3. Changes in operating assets and liabilities** |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in trade receivables |  | (313318) | (72053) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease (Increase) in other receivables |  | (13630) | 29573 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in other current assets |  | (552977) | (109274) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease (Increase) in other non-current assets |  | (73439) | 5958 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in inventories |  | 103484 | 126381 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in trade payables |  | 296847 | 51216 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in other payables |  | (39788) | (100871) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in other current liabilities |  | (20178) | (65116) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in other non-current liabilities |  | (5336) | (6712) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in provisions |  | (1658) | (189) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Increase in deferred revenue |  | 57115 | 4680 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Payment of post-employment benefits (defined benefits) |  | (228701) | (234439) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrease in plan assets |  | 212737 | 178629 |
| **4. Cash generated from operations (1+2+3)** | W | 3257307 | 3549954 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Significant transactions not affecting cash flows for the nine-month periods ended September 30, 2025 and
2024, are as follows:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Reclassification of the current portion of borrowings | W | 1387662 | 2270605 |
|  Reclassification of construction-in-progress to property and equipment |  | 1437090 | 1317113 |
|  Change of other payables relating to acquisition of property and equipment |  | (329599) | (57780) |
|  Change of other payables relating to acquisition of intangible assets |  | (272955) | (272955) |
|  Reclassification of other payables from net defined benefit liabilities |  | (20587) | (15096) |
|  Increase in financial assets due to stock exchange |  |  | 52841 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**26.** **Changes in Liabilities Arising from Financing Activities** 

Details of changes in liabilities arising 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 nine-month periods ended September 30, 2025 and 2024 are as follows:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
|  |  |  |  | **Others** | **Others** | **Others** | **Others** |  |
|  | **Beginning** | **Beginning** | **Cash flows** | **Acquisition** | **Changes in<br>FX rate** | **Fair value<br>change** | **Other<br>changes** | **Ending** |
|  Borrowings | W | 7871919 | (923180) |  | (77522) |  | (61360) | 6809857 |
|  Lease liabilities |  | 759743 | (240046) | 210775 |  |  | (38973) | 691499 |
|  Derivative liabilities |  |  |  |  |  | 6626 |  | 6626 |
|  Derivative assets |  | (442144) | 126738 |  |  | 39341 | 55349 | (220716) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 8189518 | (1036488) | 210775 | (77522) | 45967 | (44984) | 7287266 |

---

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
|  |  |  |  | **Others** | **Others** | **Others** | **Others** |  |
|  | **Beginning** | **Beginning** | **Cash flows** | **Acquisition** | **Changes in<br>FX rate** | **Fair value<br>change** | **Other<br>changes** | **Ending** |
|  Borrowings | W | 7559933 | (475338) |  | 61699 |  | 4768 | 7151062 |
|  Lease liabilities |  | 851610 | (236112) | 219088 |  |  | (41693) | 792893 |
|  Derivative liabilities |  | 23076 | (855) |  |  |  | (22221) |  |
|  Derivative assets |  | (156774) |  |  | (59494) | (16402) | 22418 | (210252) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 8277845 | (712305) | 219088 | 2205 | (16402) | (36728) | 7733703 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**27.** **Related Party Transactions** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The list of related parties of the Company as of September 30, 2025, is as follows:

---

| | |
|:---|:---|
| **Relationship** | **Name of Entity** |
| Subsidiaries | 79 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<sup>1</sup> | 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. |

---

<sup>1</sup> Included within the scope of related parties under Korean IFRS 1024 due to the presence of significant influence, even though treated in accordance with Korean IFRS 1109

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) The amount of the installment handset sales receivable inherited from KTIS Corporation, KTCS Corporation, KT
Telecop Co., Ltd., KT M&S Co., Ltd. and KT Service Nambu Co., Ltd. for the year ended September 30, 2025 is W 381,835 million.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) The Company has entered into an additional agreement in relation to providing communication service in
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.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Significant balances of receivables and payables in relation to transaction with related parties as of
September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Receivables** | **Receivables** | **Receivables** | **Receivables** | **Payables** | **Payables** | **Payables** |
|  | **Trade<br>receivables** | **Trade<br>receivables** | **Loans and<br>others** | **Other<br>receivables** | **Trade**<br>**payables** | **Other<br>payables** | **Lease<br>liabilities** |
|  **Subsidiaries** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Telecop Co., Ltd. | W | 699 |  | 115 |  | 29870 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTCS Corporation |  |  |  | 7026 |  | 58170 | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTIS Corporation |  | 12636 |  |  |  | 51726 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Bukbu Co., Ltd. |  | 20 |  | 7 |  | 21543 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Nambu Co., Ltd. |  |  |  | 45 |  | 38953 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Skylife Co., Ltd. |  | 27582 |  | 7140 | 9106 | 7711 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTDS Co., Ltd. |  | 1123 |  | 1585 |  | 99148 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Estate Inc. |  |  |  | 42364 |  | 33227 | 8392 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT ENA Co., Ltd. (formerly. Skylife TV Co., Ltd.) |  | 382 |  |  |  | 2637 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BC Card Co., Ltd. <sup>1</sup>  |  | 524 |  | 7164 |  | 12428 | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Sat Co., Ltd. |  | 1090 |  |  |  | 1199 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Alpha Co., Ltd. |  | 5660 |  | 1728 |  | 8378 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Commerce Inc. |  | 17 |  | 85 | 2523 | 12767 | 11926 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M&S Co., Ltd. |  | 65 |  | 213 |  | 58397 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT GENIE Music Corporation. (formerly. GENIE Music Corporation.) |  |  |  | 17778 |  | 24168 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M Mobile Co., Ltd. |  | 60130 |  | 70 | 2 | 3385 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt Nasmedia, Inc. (formerly. Nasmedia, Co., Ltd.) |  | 1212 |  | 92 |  | 41 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Bukbu Co., Ltd. |  | 63 |  | 2 |  | 14046 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Nambu Co., Ltd. |  |  |  | 25 |  | 13513 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Engineering Co., Ltd |  | 773 |  |  | 611 | 49604 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Studio Genie Co., Ltd. |  | 32 |  | 12535 |  | 30615 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt cloud Co., Ltd. |  | 13087 |  | 2 |  | 67800 | 35 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; East Telecom LLC |  | 5197 | 15943 |  | 99 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt netcore Co. Ltd |  | 224 |  | 6 | 25746 | 50775 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt p&m Co. Ltd |  | 128 |  | 1 |  | 11829 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 6942 |  | 9788 | 2443 | 12727 | 10031 |
|  **Associates and joint ventures** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K Bank Inc. |  | 488 |  | 3739 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 371 |  | 9 | 112 | 224 | 686 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 138445 | 15943 | 111519 | 40642 | 714881 | 31076 |

---

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Receivables** | **Receivables** | **Receivables** | **Receivables** | **Payables** | **Payables** | **Payables** |
|  | **Trade<br>receivables** | **Trade<br>receivables** | **Loans and<br>others** | **Other<br>receivables** | **Trade**<br>**payables** | **Other<br>payables** | **Lease<br>liabilities** |
|  **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Linkus Co., Ltd. | W |  |  | 2 |  | 11050 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Telecop Co., Ltd. |  | 224 |  | 978 | 1137 | 29487 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTCS Corporation |  | 186 |  | 5466 |  | 53067 | 4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTIS Corporation |  | 12956 |  |  |  | 46564 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Bukbu Co., Ltd. |  | 19 |  | 3 |  | 24652 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Nambu Co., Ltd. |  |  |  |  |  | 25537 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Skylife Co., Ltd. |  | 27816 |  | 5223 |  | 20335 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTDS Co., Ltd. |  | 1067 |  | 2005 |  | 135524 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Estate Inc. |  | 581 |  | 42422 |  | 22115 | 3743 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT ENA Co., Ltd. (formerly. Skylife TV Co., Ltd.) |  | 1006 |  | 1541 |  | 5018 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BC Card Co., Ltd. <sup>1</sup>  |  | 4402 |  | 6 |  | 12288 | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Sat Co., Ltd. |  | 1266 |  |  |  | 1309 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Alpha Co., Ltd. |  | 5738 |  | 25 | 2081 | 5516 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Commerce Inc. |  | 14 |  | 99 | 8640 | 23215 | 6007 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M&S Co., Ltd. |  | 223 | 8400 | 71 |  | 52773 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT GENIE Music Corporation. (formerly. GENIE Music Corporation.) |  | 1 |  | 14715 |  | 14996 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M Mobile Co., Ltd. |  | 49224 |  | 51 |  | 4016 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt Nasmedia, Inc. (formerly. Nasmedia, Inc.) |  | 1549 |  | 1 |  | 42 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Bukbu Co., Ltd. |  | 64 |  | 736 |  | 15122 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Nambu Co., Ltd. |  |  |  | 211 |  | 12881 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Engineering Co., Ltd |  |  |  | 367 | 2965 | 123402 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Studio Genie Co., Ltd. |  | 15 |  | 4825 | 1235 | 30524 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT cloud Co., Ltd. |  | 31683 |  | 274 |  | 47789 | 345 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; East Telecom LLC |  | 5811 | 15307 |  | 89 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 15099 |  | 1871 | 2746 | 13071 | 18 |
|  **Associates and joint ventures** |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K Bank Inc. |  | 518 |  | 3706 |  | 1 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 247 |  | 20 | 117 | 365 | 963 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 159709 | 23707 | 84618 | 19010 | 730659 | 11085 |

---

<sup>1</sup> As of September 30, 2025, the unsettled amount of W 12,368 million (December 31, 2024: W 12,145 million) in credit card transaction with BC Card Co., Ltd. is included in other payables. 

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) Significant transactions with related parties for the nine-month periods ended September 30, 2025 and
2024, are as follows:

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
|  | **Sales** | **Sales** | **Sales** | **Purchases** | **Purchases** | **Acquisition**<br>**of right-of-**<br>**use assets** | **Finance**<br>**income** | **Finance**<br>**costs** | **Dividends<br>received** |
|  | **Operating<br>revenue** | **Operating<br>revenue** | **Other**<br>**income** | **Operating<br>expenses** | **Others <sup>1</sup>** | **Acquisition**<br>**of right-of-**<br>**use assets** | **Finance**<br>**income** | **Finance**<br>**costs** | **Dividends<br>received** |
|  **Subsidiaries** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Telecop Co., Ltd. <sup>1</sup>  | W | 7109 |  | 111309 | 2002 |  | 2 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTCS Corporation <sup>1</sup>  |  | 77014 | 2 | 268154 | 22 |  |  |  | 318 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTIS Corporation |  | 60952 |  | 276269 |  |  |  |  | 1224 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Bukbu Co., Ltd. <sup>1</sup>  |  | 7957 |  | 162890 | 3025 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Nambu Co., Ltd. <sup>1</sup>  |  | 12064 | 8 | 251386 | 4177 | 1 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Skylife Co., Ltd. <sup>1</sup>  |  | 108125 | 8 | 13790 | 55 |  |  |  | 8368 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTDS Co., Ltd. <sup>1</sup>  |  | 10127 |  | 322484 | 36431 |  | 1 |  | 6096 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Estate Inc. <sup>1</sup>  |  | 44300 |  | 58115 | 1476 | 23551 |  | 499 | 6876 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT ENA Co., Ltd.<br>(formerly. Skylife TV Co., Ltd.) <sup>1</sup>  |  | 10006 |  | 8937 | 1400 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BC Card Co., Ltd. |  | 7392 | 20 | 19658 |  | 2 | 1 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Sat Co., Ltd. |  | 4868 |  | 7706 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Alpha Co., Ltd. |  | 48130 |  | 29413 |  |  | 2 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Commerce Inc. <sup>1</sup>  |  | 935 |  | 52980 | 47889 | 8513 |  | 498 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M&S Co., Ltd. |  | 215462 | 36 | 228831 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT GENIE Music Corporation.<br>(formerly. GENIE Music Corporation.) |  | 340 |  | 43013 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M Mobile Co., Ltd. |  | 218550 | 105 | 4521 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt Nasmedia, Inc.<br>(formerly. Nasmedia, Inc.) |  | 259 |  | 951 |  |  |  |  | 3487 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Nambu Co., Ltd. <sup>1</sup>  |  | 1982 |  | 70783 | 4998 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Bukbu Co., Ltd. <sup>1</sup>  |  | 2869 |  | 69068 | 5383 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Engineering Co., Ltd. <sup>1</sup>  |  | 2234 | 15 | 30311 | 105396 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTHS Corporation<br>(formerly. KHS Corporation) |  | 14 |  | 7711 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Studio Genie Co., Ltd. <sup>1</sup>  |  | 788 |  | 7413 | 60680 |  | 1 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt cloud Co., Ltd. |  | 60348 |  | 177748 |  |  |  | 6 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt netcore Co. Ltd <sup>1,2</sup>  |  | 11409 |  | 172039 | 267412 |  |  | 1 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt p&m Co. Ltd <sup>1,2</sup>  |  | 2284 |  | 34179 | 11801 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others <sup>3</sup>  |  | 39158 | 13 | 83168 | 2722 | 10529 | 1 | 25 | 12519 |
|  **Associates and joint ventures** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K Bank Inc. |  | 5896 |  | 4 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others <sup>4</sup>  |  | 1582 |  | 11364 |  |  | 1 | 25 | 5079 |
|  **Others** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 2 |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 962156 | 207 | 2524195 | 554869 | 42596 | 9 | 1054 | 43967 |

---

<sup>1</sup> The amount of acquisition of property, equipment and others is included. 

<sup>2</sup> kt netcore Co., Ltd. and kt p&m Co., Ltd. were established in the fourth quarter of 2024.

<sup>3</sup> Transactions with KT Linkus Co., Ltd., PlayD Co., Ltd. and Initech Co., Ltd. before it was excluded from subsidiaries are included.

<sup>4</sup> Transactions with Trustay Co., Ltd. before they were excluded from associates and joint ventures are included.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
|  | **Sales** | **Sales** | **Sales** | **Purchases** | **Purchases** | **Acquisition**<br>**of right-of-**<br>**use assets** | **Finance**<br>**income** | **Finance**<br>**costs** | **Dividends<br>received** |
|  | **Operating<br>revenue** | **Operating<br>revenue** | **Other**<br>**income** | **Operating<br>expenses** | **Others <sup>1</sup>** | **Acquisition**<br>**of right-of-**<br>**use assets** | **Finance**<br>**income** | **Finance**<br>**costs** | **Dividends<br>received** |
|  **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** | **Subsidiaries** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Linkus Co., Ltd. <sup>1</sup>  | W | 4093 | 12 | 44284 | 71 | 1 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Telecop Co., Ltd. <sup>1</sup>  |  | 5595 |  | 105535 | 10 |  | 3 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTCS Corporation |  | 68763 | 4 | 259402 | 1 | 1 |  |  | 318 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTIS Corporation <sup>1</sup>  |  | 54441 | 127 | 250884 | 849 |  |  |  | 1224 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Bukbu Co., Ltd. <sup>1</sup>  |  | 9293 |  | 158184 | 1515 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Service Nambu Co., Ltd. <sup>1</sup> |  | 11289 |  | 195587 | 2139 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Skylife Co., Ltd. <sup>1</sup>  |  | 107248 | 6 | 14240 | 50 |  |  |  | 8368 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTDS Co., Ltd. <sup>1</sup>  |  | 10236 |  | 329017 | 41033 |  | 1 |  | 4848 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Estate Inc. <sup>1</sup>  |  | 41878 | 11 | 60523 | 1116 | 24475 |  | 463 | 8600 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT ENA Co., Ltd.<br>(formerly. Skylife TV Co., Ltd.) |  | 11142 |  | 9418 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BC Card Co., Ltd. |  | 7139 |  | 21804 |  | 5 | 2 |  | 4589 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Sat Co., Ltd. |  | 5535 |  | 8562 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Alpha Co., Ltd. |  | 46621 |  | 33172 |  |  | 2 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Commerce Inc. <sup>1</sup>  |  | 899 |  | 59461 | 82863 | 3682 |  | 78 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M&S Co., Ltd. |  | 258329 | 24 | 207083 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GENIE Music Corporation |  | 300 |  | 42116 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M Mobile Co., Ltd. |  | 192555 | 92 | 2543 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Nasmedia, Co., Ltd. |  | 209 | 2 | 2197 |  |  |  |  | 3487 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Nambu Co., Ltd. <sup>1</sup>  |  | 1441 |  | 69661 | 4903 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT MOS Bukbu Co., Ltd. <sup>1</sup>  |  | 2331 |  | 69028 | 4993 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Engineering Co., Ltd. <sup>1</sup>  |  | 1769 |  | 28193 | 99316 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KTHS Corporation<br>(formerly. KHS Corporation) |  | 12 |  | 5615 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Studio Genie Co., Ltd. <sup>1</sup>  |  | 123 |  | 5118 | 50300 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kt cloud Co., Ltd. <sup>1</sup>  |  | 73085 |  | 113396 | 259 | 1 | 1 | 5 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others <sup>2</sup>  |  | 28645 | 355 | 79222 | 287 | 11 | 2 | 1 | 5855 |
|  **Associates and joint ventures** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; K Bank Inc. |  | 4096 |  | 110 |  |  | 918 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others <sup>3</sup>  |  | 2943 |  | 8510 |  | 14 |  | 39 | 4124 |
|  **Others** |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  | 31 | 4 |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 950041 | 637 | 2182865 | 289705 | 28190 | 929 | 586 | 41413 |

---

<sup>1</sup> The amount of acquisition of property, equipment and others is included. 

<sup>2</sup> Transactions with Lolab Co., Ltd. before it was excluded from subsidiaries are included.

<sup>3</sup> Transactions with LS Marine Solution Co., Ltd. and QTT Global (Group) Company Ltd. before they were excluded from associates and joint ventures are included.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) Key management compensation for the nine-month periods ended September 30, 2025 and 2024, consists of:

---

| | | | |
|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2024** |
|  Short-term benefits | W | 1515 | 1224 |
|  Post-employment benefits |  | 210 | 145 |
|  Stock-based compensation |  | 714 | 883 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 2439 | 2252 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) Fund transactions with related parties for the nine-month periods ended September 30, 2025 and 2024, are
as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** | **2025** | **2025** |
|  | **Loan transactions** | **Loan transactions** | **Loan transactions** | **Borrowing transactions <sup>1</sup>** | **Borrowing transactions <sup>1</sup>** | **Equity<br>contributions in<br>cash and others** |
|  | **Loans** | **Loans** | **Collections** | **Borrowings** | **Repayments** | **Equity<br>contributions in<br>cash and others** |
|  **Subsidiaries** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M&S Co., Ltd. | W | 29400 | 37800 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Estate Inc. |  |  |  | 58 | 18159 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  |  | 18503 | 3190 | (3212) |
|  **Associates and joint ventures** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IBK-KT Young Entrepreneurs MARS Investment Fund |  |  |  |  |  | 5000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others Investment Association |  |  |  |  | 301 | (1555) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 29400 | 37800 | 18561 | 21650 | 233 |

---

<sup>1</sup> Borrowing transactions include lease transactions.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** | **2024** | **2024** |
|  | **Loan transactions** | **Loan transactions** | **Loan transactions** | **Borrowing transactions <sup>1</sup>** | **Borrowing transactions <sup>1</sup>** | **Equity<br>contributions in<br>cash and others** |
|  | **Loans** | **Loans** | **Collections** | **Borrowings** | **Repayments** | **Equity<br>contributions in<br>cash and others** |
|  **Subsidiaries** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT M&S Co., Ltd. | W | 44100 | 47600 |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT Estate Inc. |  |  |  |  | 18881 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT ES Pte. Ltd. |  |  |  |  |  | 68270 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others |  |  |  | 3682 | 514 | (2817) |
|  **Associates and joint ventures** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IBK-KT Young Entrepreneurs MARS Investment Fund |  |  |  |  |  | 5000 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; KT-IBKC Future Investment Fund <sup>1</sup> |  |  |  |  |  | (1820) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TeamFresh Corp. <sup>2</sup>  |  |  |  |  |  | 52841 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Others Investment Association |  |  |  |  | 295 | 1985 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 44100 | 47600 | 3682 | 19690 | 123459 |

---

<sup>1</sup> Borrowing transactions include lease transactions.

<sup>2</sup> The transaction involved acquiring redeemable convertible preference shares of TeamFresh Corp. and occurred in the process of exchange with the shares of Lolab Co., Ltd. that were held.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8) As of September 30, 2025, the Company has entered into a credit card agreement with a limit of W 18,713 million (December 31, 2024: W 18,481 million) with BC Card Co., Ltd.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9) The Company has an obligation to invest in KIAMCO Data Center Development Real Estate General Private Placement
Investment Blind Trusts, a related party, and others according to the agreement. As of September 30, 2025, the Company is planning to make an additional investment of W 41,690 million.

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**28.** **Fair Value** 

During the period ended September 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(1)** **Fair Value by Financial Instruments Category** 

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

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **December 31, 2024** | **December 31, 2024** |
|  | **Carrying<br>amount** | **Carrying<br>amount** | **Fair value** | **Carrying<br>amount** | **Fair value** |
|  **Financial assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash and cash equivalents | W | 1095457 | <sup>1</sup> | 1540570 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets measured at amortized cost <sup>2</sup>  |  | 3294387 | <sup>1</sup> | 3099178 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 211963 | 211963 | 114774 | 114774 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets measured at amortized cost |  | 80465 | <sup>1</sup> | 80465 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 431829 | 431829 | 456224 | 456224 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 1800896 | 1800896 | 1458891 | 1458891 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging purpose |  | 220715 | 220715 | 442144 | 442144 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 7135712 |  | 7192246 |  |
|  **Financial liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other payables | W | 4185665 | <sup>1</sup> | 4315375 | <sup>1</sup> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings |  | 6809857 | 6808962 | 7871919 | 7769937 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 28 | 28 | 28 | 28 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging purpose |  | 6626 | 6626 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 11002176 |  | 12187322 |  |

---

<sup>1</sup> The Company did not conduct fair value estimation as the book amount is a reasonable approximation of the fair value. 

------

##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(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:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 1: The quoted (unadjusted) price in active markets for identical assets or liabilities that an
entity can access at the measurement date.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Level 2: All inputs other than quoted prices included in Level 1 that are observable (either directly
that is, or indirectly that is, derived from prices) for the asset or liability.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 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 September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Level 1** | **Level 1** | **Level 2** | **Level 3** | **Total** |
|  **Assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W |  | 211963 |  | 211963 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  |  |  | 431829 | 431829 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 1659881 |  | 141015 | 1800896 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  |  | 220715 |  | 220715 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1659881 | 432678 | 572844 | 2665403 |
|  **Liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | W |  | 6808962 |  | 6808962 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  |  |  | 28 | 28 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  |  | 6626 |  | 6626 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W |  | 6815588 | 28 | 6815616 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Level 1** | **Level 1** | **Level 2** | **Level 3** | **Total** |
|  **Assets** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W |  | 114774 |  | 114774 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  |  |  | 456224 | 456224 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 1317876 |  | 141015 | 1458891 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  |  | 442144 |  | 442144 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W | 1317876 | 556918 | 597239 | 2472033 |
|  **Liabilities** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | W |  | 7769937 |  | 7769937 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  |  |  | 28 | 28 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total | W |  | 7769937 | 28 | 7769965 |

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 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 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.

Details of changes in Level 3 of the fair value hierarchy for recurring fair value measurements for the nine-month periods ended September 30, 2025 and 2024 are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2025** | **2025** | **2025** | **2025** |
|  | **Financial assets** | **Financial assets** | **Financial assets** | **Financial<br>liabilities** |
|  | **Financial<br>assets at<br>FVTPL** | **Financial<br>assets at<br>FVTPL** | **Financial<br>assets at<br>FVOCI** | **Financial<br>liabilities at<br>FVTPL** |
|  Beginning balance | W | 456224 | 141015 | 28 |
|  Acquisition |  | 8538 |  |  |
|  Transfer |  | (105) | 145 |  |
|  Disposal |  | (5354) | (145) |  |
|  Amount recognized in profit or loss |  | (27474) |  |  |
|  Ending balance | W | 431829 | 141015 | 28 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **2024** | **2024** | **2024** | **2024** |
|  | **Financial assets** | **Financial assets** | **Financial assets** | **Financial<br>liabilities** |
|  | **Financial<br>assets at<br>FVTPL** | **Financial<br>assets at<br>FVTPL** | **Financial<br>assets at<br>FVOCI** | **Financial<br>liabilities at<br>FVTPL** |
|  Beginning balance | W | 441321 | 201189 | 1403 |
|  Acquisition |  | 15366 |  |  |
|  Transfer |  | 48645 |  |  |
|  Disposal |  | (13140) |  |  |
|  Amount recognized in profit or loss |  | 9319 |  |  |
|  Ending balance | W | 501511 | 201189 | 1403 |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 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 September 30, 2025 and December 31, 2024, are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** | **September 30, 2025** |
|  | **Fair value** | **Fair value** | **Level** | **Valuation techniques** |
|  **Assets** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W | 211963 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 431829 | 3 | DCF Model,<br> Adjusted Net Asset Model,<br> Market Approach Model,<br> Binomial Option Pricing Model,<br> T-F Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 141015 | 3 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  | 220715 | 2 | DCF Model |
|  **Liabilities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | W | 6808962 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 28 | 3 | Binomial Option Pricing Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial liabilities for hedging |  | 6626 | 2 | DCF Model |

---

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

---

| | | | | |
|:---|:---|:---|:---|:---|
| *(In millions of Korean won)* | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** | **December 31, 2024** |
|  | **Fair value** | **Fair value** | **Level** | **Valuation techniques** |
|  **Assets** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trade and other receivables |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income | W | 114774 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial assets |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through profit or loss |  | 456224 | 3 | DCF Model,<br> Adjusted Net Asset Model,<br> Market Approach Model, Binomial Option Pricing Model, T-F Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Financial assets at fair value through other comprehensive income |  | 141015 | 3 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Derivative financial assets for hedging |  | 442144 | 2 | DCF Model |
|  **Liabilities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Borrowings | W | 7769937 | 2 | DCF Model |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other financial liabilities |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 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.

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##### [**Table of Contents**](#toc)
**KT Corporation** 

**Notes to the Separate Interim Financial Statements** 

**As of September 30, 2025 and 2024, and December 31, 2024** 

**29.** **Events After the Reporting Period** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) The Company decided on a quarterly dividend at the Board of Directors dated October 21, 2025, and the
details are as follows.

---

| | |
|:---|:---|
| **Type** | **Details** |
|  Dividend per share | W 600 (Total dividend: W 144,657 million) |
|  Dividend yield | 1.2% |
|  Dividend report date | November 5, 2025 |
|  Dividend pay date | November 20, 2025 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) As of September 30, 2025, the company has notified customers affected by unauthorized small sum-payments and security incidents. The company is carrying out its own customer care measures in connection with the incident. Implementing these customer care measures is expected to result in a decrease in
operating revenue and an increase in operating expenses; however, as of the end of the current quarter, the financial impact cannot be reasonably estimated.