KT / KT Corporation - Depositary Receipt (Common Stock) - SEC-Einreichungen, Jahresbericht, Proxy Statement

KT Corporation - Depositary Receipt (Common Stock)
US ˙ NYSE ˙ US48268K1016

Basisstatistiken
LEI 9884005ACF8449EANY26
CIK 892450
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to KT Corporation - Depositary Receipt (Common Stock)
SEC Filings (Chronological Order)
Auf dieser Seite finden Sie eine vollständige, chronologische Liste der SEC-Einreichungen, mit Ausnahme der Eigentumseinreichungen, die wir an anderer Stelle bereitstellen.
May 29, 2026 6-K

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 May 2026 Commission File Number 1-14926 KT Corporation (Tran

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 May 2026 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) Indic

May 29, 2026 EX-99.1

KT Corporation and Subsidiaries Condensed Consolidated Interim Financial Statements March 31, 2026 and 2025, and December 31, 2025 ATTACHMENT : INDEPENDENT AUDITOR’S REVIEW REPORT KT Corporation and Subsidiaries Index March 31, 2026 and 2025, and Dec

a1q26auditreportconsoli KT Corporation and Subsidiaries Condensed Consolidated Interim Financial Statements March 31, 2026 and 2025, and December 31, 2025 ATTACHMENT : INDEPENDENT AUDITOR’S REVIEW REPORT KT Corporation and Subsidiaries Index March 31, 2026 and 2025, and December 31, 2025 Page(s) Report on Review of Condensed Consolidated Interim Financial Statements .

May 29, 2026 EX-99.2

!" # "!$!"!" % &' '!( !) '!$&' KT Corporation Index March 31, 2026 and 2025, and December 31, 2025 Page(s) Report on Review of Condensed Separate Interim Financial Statements... 1 – 2 Condensed Separate Interim Financial Statements Condense

a1q26auditreportseparat                           !" # "!$!"!" % &' '!( !) '!$&' KT Corporation Index March 31, 2026 and 2025, and December 31, 2025 Page(s) Report on Review of Condensed Separate Interim Financial Statements.

May 12, 2026 6-K

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 May 2026 Commission File Number 1-14926 KT Corporation (Tran

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 May 2026 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) Indic

May 12, 2026 6-K

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 May 2026 Commission File Number 1-14926 KT Corporation (Tran

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 May 2026 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) Indic

May 12, 2026 6-K

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 May 2026 Commission File Number 1-14926 KT Corporation (Tran

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 May 2026 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) Indic

May 12, 2026 6-K

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 May 2026 Commission File Number 1-14926 KT Corporation (Tran

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 May 2026 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) Indic

May 12, 2026 EX-99.1

1Q26 Earnings Release 2 Disclaimer This presentation has been prepared by KT Corp.(the “Company”) in accordance with K-IFRS. This presentation contains forward-looking statements, which are subject to risks, uncertainties, and assumptions. This prese

a1q26erpt260511 1Q26 Earnings Release 2 Disclaimer This presentation has been prepared by KT Corp.

May 4, 2026 6-K

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 May 2026 Commission File Number 1-14926 KT Corporation (Tran

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 May 2026 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) Indic

April 29, 2026 EX-12.2

/s/ HYE-BYUNG MIN

Exhibit 12.2 CERTIFICATION I, Hye-Byung Min, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the

April 29, 2026 20-F

As filed with the Securities and Exchange Commission on April 29, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents As filed with the Securities and Exchange Commission on April 29, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 29, 2026 EX-12.1

/s/ YOON YOUNG PARK

Exhibit 12.1 CERTIFICATION I, Yoon Young Park, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to th

April 29, 2026 EX-15.1

1

Exhibit 15.1 April 29, 2026 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Dear Sirs/Madams, We have read the Item “16F Change in Registrant’s Certifying Accountant” on Form 20-F of KT Corporation dated April 29, 2026 and have the following comments: 1.We agree with the third paragraph included in Item 16F Changes in Registrant’s Certifying Accountant. We also agree wit

April 29, 2026 EX-1

THE ARTICLES OF INCORPORATION KT Corporation

Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 1 / 32 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 March 29, 2021 March 31, 2022 March 31, 2023 June 30, 2023 March 28, 2024 March 31, 2025 March 31, 2026 2 / 32 CHAPTER I.

April 29, 2026 EX-13.1

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the laws of t

April 14, 2026 EX-99.2

KT Corporation Separate Financial Statements December 31, 2025 and 2024 ATTACHMENT : INDEPENDENT AUDITOR’S REPORT KT Corporation KT Corporation Index December 31, 2025 and 2024 Page(s) Independent Auditor’s Report……………………………………………………... 1 – 4 Separat

a2025ktseparate KT Corporation Separate Financial Statements December 31, 2025 and 2024 ATTACHMENT : INDEPENDENT AUDITOR’S REPORT KT Corporation KT Corporation Index December 31, 2025 and 2024 Page(s) Independent Auditor’s Report…………………………………………………….

April 14, 2026 EX-99.1

KT Corporation and Its Subsidiaries Consolidated Financial Statements December 31, 2025 and 2024 ATTACHMENT : INDEPENDENT AUDITOR’S REPORT KT Corporation KT Corporation and Its Subsidiaries Index December 31, 2025 and 2024 Page(s) Independent Auditor

a2025ktconsolidated KT Corporation and Its Subsidiaries Consolidated Financial Statements December 31, 2025 and 2024 ATTACHMENT : INDEPENDENT AUDITOR’S REPORT KT Corporation KT Corporation and Its Subsidiaries Index December 31, 2025 and 2024 Page(s) Independent Auditor’s Report…………………………………………………….

April 14, 2026 6-K

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 April 2026 Commission File Number 1-14926 KT Corporation (Tr

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 April 2026 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) Ind

April 14, 2026 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number 1-14926 KT Corporation (

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 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) I

March 31, 2026 6-K

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 March 2026 Commission File Number 1-14926 KT Corporation (Tr

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 March 2026 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) Ind

March 31, 2026 6-K

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 March 2026 Commission File Number 1-14926 KT Corporation (Tr

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 March 2026 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) Ind

March 16, 2026 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number 1-14926 KT Corporation (

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 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) I

March 10, 2026 6-K

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 March 2026 Commission File Number 1-14926 KT Corporation (Tr

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 March 2026 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) Ind

March 10, 2026 6-K

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 March 2026 Commission File Number 1-14926 KT Corporation (Tr

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 March 2026 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) Ind

February 10, 2026 6-K

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 February 2026 Commission File Number 1-14926 KT Corporation

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 February 2026 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)

February 10, 2026 6-K

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 February 2026 Commission File Number 1-14926 KT Corporation

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 February 2026 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)

February 10, 2026 6-K

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 February 2026 Commission File Number 1-14926 KT Corporation

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 February 2026 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)

February 10, 2026 6-K

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 February 2026 Commission File Number 1-14926 KT Corporation

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 February 2026 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)

February 10, 2026 EX-99.1

2025 Earnings Release 2 Disclaimer This presentation has been prepared by KT Corp.(the “Company”) in accordance with K-IFRS. This presentation contains forward-looking statements, which are subject to risks, uncertainties, and assumptions. This prese

a4q25ktxerxptxengx26021 2025 Earnings Release 2 Disclaimer This presentation has been prepared by KT Corp.

February 10, 2026 6-K

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 February 2026 Commission File Number 1-14926 KT Corporation

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 February 2026 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)

February 3, 2026 6-K

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 February 2026 Commission File Number 1-14926 KT Corporation

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 February 2026 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)

January 20, 2026 6-K

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 January 2026 Commission File Number 1-14926 KT Corporation (

Form 6-K 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 January 2026 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 o

December 17, 2025 6-K

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

Form 6-K 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

December 2, 2025 6-K

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

Form 6-K Table of Contents 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 pr

November 12, 2025 6-K

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 November 2025 Commission File Number 1-14926 KT Corporation

Form 6-K 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 November 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

November 7, 2025 6-K

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 November 2025 Commission File Number 1-14926 KT Corporation

Form 6-K 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 November 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

October 31, 2025 6-K

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 October 2025 Commission File Number 1-14926 KT Corporation (

Form 6-K 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 October 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 o

October 21, 2025 6-K

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 October 2025 Commission File Number 1-14926 KT Corporation (

Form 6-K 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 October 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 o

September 5, 2025 6-K

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 September 2025 Commission File Number 1-14926 KT Corporation

Form 6-K Table of Contents 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 September 2025 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of p

August 13, 2025 6-K

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 August 2025 Commission File Number 1-14926 KT Corporation (T

Form 6-K 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 August 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 of

August 11, 2025 6-K

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 August 2025 Commission File Number 1-14926 KT Corporation (T

Form 6-K 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 August 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 of

August 5, 2025 6-K

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 August 2025 Commission File Number 1-14926 KT Corporation (T

Form 6-K 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 August 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 of

July 15, 2025 6-K

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 July 2025 Commission File Number 1-14926 KT Corporation (Tra

Form 6-K 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 July 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 offi

July 15, 2025 6-K

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 July 2025 Commission File Number 1-14926 KT Corporation (Tra

Form 6-K 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 July 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 offi

June 24, 2025 6-K

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 June 2025 Commission File Number 1-14926 KT Corporation (Tra

Form 6-K 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 June 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 offi

June 17, 2025 6-K

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 June 2025 Commission File Number 1-14926 KT Corporation (Tra

Table of Contents 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 June 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 execu

June 13, 2025 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number 1-14926 KT Corporation (T

Form 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 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

May 16, 2025 6-K

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 May 2025 Commission File Number 1-14926 KT Corporation (Tran

Form 6-K 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 May 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 offic

May 9, 2025 6-K

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 May 2025 Commission File Number 1-14926 KT Corporation (Tran

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 May 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) Indic

May 9, 2025 6-K

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 May 2025 Commission File Number 1-14926 KT Corporation (Tran

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 May 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) Indic

April 29, 2025 EX-1

THE ARTICLES OF INCORPORATION KT Corporation

Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 March 29, 2021 March 31, 2022 March 31, 2023 June 30, 2023 March 28, 2024 March 31, 2025 1 / 22 CHAPTER I.

April 29, 2025 EX-11.1

The following is an English translation of Section 7 of KT Corporation (the Company)’s Disclosure Controls and Procedures Guideline.

EX-11.1 Exhibit 11.1 The following is an English translation of Section 7 of KT Corporation (the Company)’s Disclosure Controls and Procedures Guideline. Section 7: Prohibition of Insider Trading Article 40 (Prohibition on the Use of Material Nonpublic Information) Employees shall not use material nonpublic information obtained during the course of their work (hereinafter referred to as “Material

April 29, 2025 EX-12.1

/s/ YOUNG-SHUB KIM

EX-12.1 Exhibit 12.1 CERTIFICATION I, Young-Shub Kim, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respec

April 29, 2025 20-F

As filed with the Securities and Exchange Commission on April 29, 2025 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents As filed with the Securities and Exchange Commission on April 29, 2025 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 29, 2025 EX-12.2

/s/ MIN JANG

EX-12.2 Exhibit 12.2 CERTIFICATION I, Min Jang, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to t

April 29, 2025 EX-13.1

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

EX-13.1 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the l

April 17, 2025 6-K

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 April 2025 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K Table of Contents 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 April 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 princ

April 15, 2025 6-K

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 April 2025 Commission File Number 1-14926 KT Corporation (Tr

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 April 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) Ind

April 15, 2025 6-K

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 April 2025 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K 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 April 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 off

March 31, 2025 6-K

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 March 2025 Commission File Number 1-14926 KT Corporation (Tr

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 March 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) Ind

March 14, 2025 6-K

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 March 2025 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K 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 March 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 off

March 13, 2025 6-K

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 March 2025 Commission File Number 1-14926 KT Corporation (Tr

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 March 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) Ind

March 10, 2025 6-K

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 March 2025 Commission File Number 1-14926 KT Corporation (Tr

Table of Contents 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 March 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 exec

February 13, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

Form 6-K 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 February 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

February 13, 2025 F-6EF

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM F-6 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 FOR AMERICAN DEPOSITARY SHARES EVIDENCED BY AMERICAN DEPOSITARY RECEIPTS KT CORPORATION (Exact name of issuer of deposited securities

As filed with the Securities and Exchange Commission on February 13, 2025 Registration No.

February 13, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

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 February 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)

February 13, 2025 EX-99.(E)

Rule 466 Certification

Exhibit (e) Rule 466 Certification The depositary, Citibank, N.A., represents and certifies the following: (i) That it previously had filed a registration statement on Form F-6 (Registration No. 333-13578, which the U.S. Securities and Exchange Commission declared effective, with terms of deposit identical to the terms of deposit of this Form F-6 Registration Statement; and (ii) That its ability t

February 13, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

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 February 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)

February 13, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

Form 6-K 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 February 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

February 13, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

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 February 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)

February 13, 2025 EX-99.(B)

KT CORPORATION -Direct Registration System for ADSs

Exhibit (b) 388 Greenwich Street 14th Floor New York, NY 10013 CITIBANK, N.A. 388 Greenwich Street New York, New York 10013 Dated as of October 1, 2007 KT CORPORATION -Direct Registration System for ADSs Ladies and Gentlemen: Reference is made to the Deposit Agreement, dated as of May 25, 1999, as amended by Amendment No. 1 dated as of February 5, 2004 (the "Deposit Agreement"), by and among KT CO

February 13, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

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 February 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)

February 13, 2025 EX-99.(A)(I)

KT CORPORATION (FORMERLY KNOWN AS KOREA TELECOM CORP.) CITIBANK, N.A., As Depositary HOLDERS AND BENEFICIAL OWNERS FROM TIME TO TIME OF AMERICAN DEPOSITARY RECEIPTS Amendment No. 1 Deposit Agreement Dated as of February 5, 2004

Exhibit (a)(i) Execution Copy KT CORPORATION (FORMERLY KNOWN AS KOREA TELECOM CORP.

February 13, 2025 EX-99.(D)

Exhibit (d)

Exhibit (d) February 13, 2025 Citibank, N.A. – ADR Department 388 Greenwich Street New York, New York 10013 Ladies and Gentlemen: We refer to the Registration Statement on Form F-6 (the “Registration Statement”) to be filed with the Securities and Exchange Commission (the “SEC”) by the legal entity created by the Deposit Agreement (as hereinafter defined) for the purpose of registering under the U

February 6, 2025 6-K

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 February 2025 Commission File Number 1-14926 KT Corporation

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 February 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)

February 3, 2025 EX-99.1

KT / KT Corporation - Depositary Receipt (Common Stock) / Silchester International Investors LLP - EX-99.1 = MX?+6H>9?+VO1&)WTN%KF:*.1(PR\5J%>-X13D0I7OX1TAX8RQGJ2;^-C[Z/S M9:D

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December 11, 2024 6-K

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 2024 Commission File Number 1-14926 KT Corporation

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 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

November 26, 2024 6-K

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 November 2024 Commission File Number 1-14926 KT Corporation

Table of Contents 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 November 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal e

November 13, 2024 SC 13G/A

KT / KT Corporation - Depositary Receipt (Common Stock) / Silchester International Investors LLP - SC 13G/A Passive Investment

SC 13G/A 1 d875323dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Schedule 13G under the Securities Exchange Act of 1934 (Amendment No. 3) KT Corporation (Name of Issuer) Common stock, par value Won 5,000 per share (Title of Class of Securities) 48268K101 (CUSIP Number) September 30, 2024 Date of Event Which Requires Filing o

November 13, 2024 EX-99.1

Joint Filing Agreement November 13, 2024

EX-99.1 2 d875323dex991.htm EX-99.1 CUSIP NO. 48268K101 13G Page 11 of 11 EXHIBIT 99.1 Joint Filing Agreement November 13, 2024 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, Silchester International Investors LLP, Silchester Partners Limited, Silchester Continuation Limited and Stephen Charles Butt each hereby agree to the joint filing of this statement

November 8, 2024 6-K

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 November 2024 Commission File Number 1-14926 KT Corporation

Form 6-K 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 November 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive

November 5, 2024 6-K

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 November 2024 Commission File Number 1-14926 KT Corporation

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 November 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

November 1, 2024 6-K

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 November 2024 Commission File Number 1-14926 KT Corporation

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 November 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

October 28, 2024 6-K

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 October 2024 Commission File Number 1-14926 KT Corporation (

6-K 1 d897787d6k.htm FORM 6-K 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 October 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of

October 15, 2024 6-K

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 October 2024 Commission File Number 1-14926 KT Corporation (

6-K 1 d631147d6k.htm FORM 6-K 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 October 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of

October 15, 2024 6-K

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 October 2024 Commission File Number 1-14926 KT Corporation (

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 October 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) I

September 30, 2024 6-K

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 September 2024 Commission File Number 1-14926 KT Corporation

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 September 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

September 24, 2024 6-K

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 September 2024 Commission File Number 1-14926 KT Corporation

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 September 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

September 24, 2024 6-K

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 September 2024 Commission File Number 1-14926 KT Corporation

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 September 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

August 26, 2024 6-K

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 August 2024 Commission File Number 1-14926 KT Corporation (T

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 August 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) In

August 9, 2024 6-K

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 August 2024 Commission File Number 1-14926 KT Corporation (T

Form 6-K 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 August 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive of

August 2, 2024 6-K

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 August 2024 Commission File Number 1-14926 KT Corporation (T

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 August 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) In

July 16, 2024 6-K

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 July 2024 Commission File Number 1-14926 KT Corporation (Tra

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 July 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Indi

June 25, 2024 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 1-14926 KT Corporation (T

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) In

June 21, 2024 6-K

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 June 2024 Commission File Number 1-14926 KT Corporation (Tra

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 June 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Indi

June 12, 2024 6-K

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 June 2024 Commission File Number 1-14926 KT Corporation (Tra

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 June 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Indi

May 24, 2024 6-K

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 May 2024 Commission File Number 1-14926 KT Corporation (Tran

Table of Contents 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 May 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal execut

May 10, 2024 6-K

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 May 2024 Commission File Number 1-14926 KT Corporation (Tran

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 May 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Indic

May 9, 2024 6-K

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 May 2024 Commission File Number 1-14926 KT Corporation (Tran

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 May 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Indic

May 3, 2024 6-K

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 May 2024 Commission File Number 1-14926 KT Corporation (Tran

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 May 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Indic

April 30, 2024 EX-97.1

Regulation on Recovery of Erroneously Awarded Compensation to Executive Officers

Exhibit 97.1 Regulation on Recovery of Erroneously Awarded Compensation to Executive Officers Established on November 13, 2023, Regulation No. 812 Article 1 (Purpose) The purpose of this Regulation is to set forth the matters concerning the Accounting Restatement (as defined below) of KT Corporation (the “Company”) and the subsequent recovery of the Erroneously Awarded Compensation (as defined bel

April 30, 2024 20-F

As filed with the Securities and Exchange Commission on April 30, 2024 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents As filed with the Securities and Exchange Commission on April 30, 2024 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 30, 2024 6-K

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 April 2024 Commission File Number 1-14926 KT Corporation (Tr

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 April 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Ind

April 30, 2024 EX-12.1

/s/ YOUNG-SHUB KIM

EX-12.1 Exhibit 12.1 CERTIFICATION I, Young-Shub Kim, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respec

April 30, 2024 EX-13.1

CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

EX-13.1 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the l

April 30, 2024 EX-1

THE ARTICLES OF INCORPORATION KT Corporation

Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 March 29, 2021 March 31, 2022 March 31, 2023 June 30, 2023 March 28, 2024 CHAPTER I.

April 30, 2024 EX-12.2

/s/ MIN JANG

EX-12.2 Exhibit 12.2 CERTIFICATION I, Min Jang, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to t

April 24, 2024 6-K

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 April 2024 Commission File Number 1-14926 KT Corporation (Tr

6-K 1 d808098d6k.htm FORM 6-K Table of Contents 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 April 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Ko

April 11, 2024 6-K

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 April 2024 Commission File Number 1-14926 KT Corporation (Tr

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 April 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Ind

April 2, 2024 6-K

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 April 2024 Commission File Number 1-14926 KT Corporation (Tr

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 April 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Ind

March 28, 2024 6-K

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 March 2024 Commission File Number 1-14926 KT Corporation (Tr

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 March 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Ind

March 19, 2024 6-K

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 March 2024 Commission File Number 1-14926 KT Corporation (Tr

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 March 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices) Ind

March 15, 2024 6-K

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 March 2024 Commission File Number 1-14926 KT Corporation (Tr

6-K 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 March 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

March 15, 2024 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2024 Commission File Number 1-14926 KT Corporation (

Form 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive

March 7, 2024 6-K

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 March 2024 Commission File Number 1-14926 KT Corporation (Tr

Table of Contents 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 March 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal exec

February 8, 2024 6-K

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 February 2024 Commission File Number 1-14926 KT Corporation

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 February 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

February 8, 2024 6-K

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 February 2024 Commission File Number 1-14926 KT Corporation

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 February 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

February 8, 2024 6-K

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 February 2024 Commission File Number 1-14926 KT Corporation

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 February 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

February 8, 2024 6-K

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 February 2024 Commission File Number 1-14926 KT Corporation

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 February 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

February 8, 2024 6-K

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 February 2024 Commission File Number 1-14926 KT Corporation

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 February 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

February 1, 2024 6-K

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 February 2024 Commission File Number 1-14926 KT Corporation

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 February 2024 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea (Address of principal executive offices)

January 29, 2024 SC 13G/A

KT / KT Corporation - Depositary Receipt (Common Stock) / Silchester International Investors LLP - SC 13G/A Passive Investment

SC 13G/A 1 d140664dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Schedule 13G under the Securities Exchange Act of 1934 (Amendment No. 2) KT Corporation (Name of Issuer) Common stock, par value Won 5,000 per share (represented by American Depository Shares, each representing one-half of one share of common stock). (Title of

January 29, 2024 EX-99.1

Joint Filing Agreement January 29, 2024

EX-99.1 2 d140664dex991.htm EX-99.1 CUSIP NO. 48268K101 13G Page 11 of 11 EXHIBIT 99.1 Joint Filing Agreement January 29, 2024 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, Silchester International Investors LLP, Silchester Partners Limited, Silchester Continuation Limited and Stephen Charles Butt each hereby agree to the joint filing of this statement

November 30, 2023 6-K

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 November 2023 Commission File Number 1-14926 KT Corporation

Form 6-K Table of Contents 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 November 2023 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 pr

November 7, 2023 6-K

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 November 2023 Commission File Number 1-14926 KT Corporation

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 November 2023 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)

October 31, 2023 6-K

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 October 2023 Commission File Number 1-14926 KT Corporation (

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 October 2023 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) I

October 17, 2023 6-K

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 October 2023 Commission File Number 1-14926 KT Corporation (

Form 6-K 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 October 2023 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 o

October 11, 2023 6-K

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 October 2023 Commission File Number 1-14926 KT Corporation (

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 October 2023 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) I

September 1, 2023 6-K

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 September 2023 Commission File Number 1-14926 KT Corporation

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 September 2023 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)

August 30, 2023 6-K

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 August 2023 Commission File Number 1-14926 KT Corporation (T

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 August 2023 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) In

August 30, 2023 6-K

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 August 2023 Commission File Number 1-14926 KT Corporation (T

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 August 2023 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) In

August 28, 2023 6-K

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 August 2023 Commission File Number 1-14926 KT Corporation (T

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 August 2023 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) In

August 10, 2023 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 1-14926 KT Corporation

Form 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 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 executiv

August 10, 2023 6-K

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 August 2023 Commission File Number 1-14926 KT Corporation (T

Form 6-K 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 August 2023 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 of

August 7, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 1-14926

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 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

August 7, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 1-14926

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 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 exec

August 1, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 1-14926

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 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 exec

August 1, 2023 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 Commission File Number 1-14926

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2023 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 exec

July 5, 2023 6-K

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 July 2023 Commission File Number 1-14926 KT Corporation (Tra

Form 6-K 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 July 2023 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 offi

June 30, 2023 6-K

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 June 2023 Commission File Number 1-14926 KT Corporation (Tra

Form 6-K 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 June 2023 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 offi

June 28, 2023 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2023 Commission File Number 1-14926 KT Corporation (T

Form 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2023 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

June 9, 2023 6-K

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 June 2023 Commission File Number 1-14926 KT Corporation (Tra

Form 6-K Table of Contents 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 June 2023 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 princi

May 24, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

Table of Contents 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 May 2023 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 execut

May 12, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

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 May 2023 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) Indic

May 11, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

Form 6-K 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 May 2023 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 offic

May 11, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

6-K 1 d507019d6k.htm FORM 6-K 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 May 2023 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 prin

May 11, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

Form 6-K 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 May 2023 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 offic

May 11, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

Form 6-K 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 May 2023 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 offic

May 11, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

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 May 2023 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) Indic

May 2, 2023 6-K

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 May 2023 Commission File Number 1-14926 KT Corporation (Tran

Form 6-K 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 May 2023 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 offic

April 28, 2023 EX-12.1

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EX-12.1 Exhibit 12.1 CERTIFICATION I, Jong-Ook Park, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

April 28, 2023 EX-1

Articles of Incorporation of KT Corporation (English translation)

EX-1 Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 March 29, 2021 March 31, 2022 March 31, 2023 1 / 21 CHAPTER I.

April 28, 2023 EX-13.1

Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EX-13.1 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the l

April 28, 2023 EX-15.1

Letter of Samil PricewaterhouseCoopers dated April 28, 2023

Exhibit 15.1 April 28, 2023 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by KT Corporation (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to Item 16.F “Change in Registrant’s Certifying Accountant” of Form 20-F of KT Corporation dated April 28, 2023. We agree with

April 28, 2023 EX-12.2

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EX-12.2 Exhibit 12.2 CERTIFICATION I, Young-Jin Kim, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

April 28, 2023 20-F

As filed with the Securities and Exchange Commission on April 28, 2023 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

Table of Contents As filed with the Securities and Exchange Commission on April 28, 2023 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 24, 2023 6-K

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 April 2023 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K Table of Contents 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 April 2023 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 princ

March 31, 2023 6-K

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 March 2023 Commission File Number 1-14926 KT Corporation (Tr

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 March 2023 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) Ind

March 28, 2023 6-K

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 March 2023 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K 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 March 2023 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 off

March 27, 2023 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 Commission File Number 1-14926 KT Corporation (

Form 6-K/A Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 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 p

March 10, 2023 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 Commission File Number 1-14926 KT Corporation (

Form 6-K/A Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2023 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 p

March 9, 2023 6-K

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 March 2023 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K Table of Contents 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 March 2023 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 princ

March 8, 2023 6-K

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 March 2023 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K Table of Contents 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 March 2023 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 princ

March 7, 2023 6-K

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 March 2023 Commission File Number 1-14926 KT Corporation (Tr

Form 6-K 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 March 2023 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 off

February 9, 2023 6-K

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 February 2023 Commission File Number 1-14926 KT Corporation

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 February 2023 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)

February 9, 2023 6-K

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 February 2023 Commission File Number 1-14926 KT Corporation

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 February 2023 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)

February 9, 2023 6-K

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 February 2023 Commission File Number 1-14926 KT Corporation

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 February 2023 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)

February 9, 2023 6-K

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 February 2023 Commission File Number 1-14926 KT Corporation

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 February 2023 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)

January 31, 2023 SC 13G/A

KT / KT Corp. / Silchester International Investors LLP - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) Schedule 13G under the Securities Exchange Act of 1934 (Amendment No. 1) KT Corporation (Name of Issuer) Common stock, par value Won 5,000 per share (represented by American Depository Shares, each representing one-half of one share of common stock). (Title of Class of Securities) 48268K101

January 31, 2023 EX-99.1

Joint Filing Agreement January 30, 2023

EX-99.1 CUSIP NO. 48268K101 13G Page 11 of 11 EXHIBIT 99.1 Joint Filing Agreement January 30, 2023 In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, Silchester International Investors LLP, Silchester Partners Limited, Silchester Continuation Limited and Stephen Charles Butt each hereby agree to the joint filing of this statement on Schedule 13G (including a

January 13, 2023 6-K

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 January 2023 Commission File Number 1-14926 KT Corporation (

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 January 2023 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) I

November 28, 2022 6-K

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 November 2022 Commission File Number 1-14926 KT Corporation

6-K 1 d403866d6k.htm FORM 6-K Table of Contents 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 November 2022 Commission File Number 1-14926 KT Corporation (Translation of registrant’s name into English) 90, Buljeong-ro, Bundang-gu, Seongnam-si, Gyeonggi-do,

November 8, 2022 6-K

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 November 2022 Commission File Number 1-14926 KT Corporation

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 November 2022 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)

November 1, 2022 6-K

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 November 2022 Commission File Number 1-14926 KT Corporation

Form 6-K 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 November 2022 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

September 7, 2022 6-K

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 September 2022 Commission File Number 1-14926 KT Corporation

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 September 2022 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)

September 7, 2022 6-K

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 September 2022 Commission File Number 1-14926 KT Corporation

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 September 2022 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)

September 7, 2022 6-K

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 September 2022 Commission File Number 1-14926 KT Corporation

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 September 2022 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)

August 26, 2022 6-K

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 August 2022 Commission File Number 1-14926 KT Corporation (T

Table of Contents 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 August 2022 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 exe

August 10, 2022 6-K

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 August 2022 Commission File Number 1-14926 KT Corporation (T

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 August 2022 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) In

August 3, 2022 6-K

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 August 2022 Commission File Number 1-14926 KT Corporation (T

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 August 2022 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) In

June 17, 2022 6-K

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 June 2022 Commission File Number 1-14926 KT Corporation (Tra

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 June 2022 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) Indi

May 27, 2022 6-K

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 May 2022 Commission File Number 1-14926 KT Corporation (Tran

Table of Contents 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 May 2022 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 execut

May 12, 2022 6-K

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 May 2022 Commission File Number 1-14926 KT Corporation (Tran

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 May 2022 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) Indic

May 9, 2022 6-K/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 Commission File Number 1-14926 KT Corporation (Tr

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K/A REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2022 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) Ind

May 4, 2022 6-K

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 May 2022 Commission File Number 1-14926 KT Corporation (Tran

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 May 2022 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) Indic

April 28, 2022 EX-13.1

Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EX-13.1 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the l

April 28, 2022 20-F

Table of Contents As filed with the Securities and Exchange Commission on April 28, 2022 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 20-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXC

Table of Contents As filed with the Securities and Exchange Commission on April 28, 2022 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 28, 2022 EX-1

Articles of Incorporation of KT Corporation (English translation)

Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 March 29, 2021 March 31, 2022 1 / 21 CHAPTER I.

April 28, 2022 EX-12.2

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EX-12.2 Exhibit 12.2 CERTIFICATION I, Young-Jin Kim, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

April 28, 2022 EX-12.1

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

EX-12.1 Exhibit 12.1 CERTIFICATION I, Hyeon-Mo Ku, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect t

April 26, 2022 6-K

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 April 2022 Commission File Number 1-14926 KT Corporation (Tr

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 April 2022 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) Ind

April 26, 2022 EX-99.1

ANNUAL FINANCIAL REPORT KT CORPORATION (From January 1, 2021 to December 31, 2021) (Translation of the Annual Report filed in Korean with the Financial Supervisory Service of Korea)

Table of Contents Exhibit 99.1 ANNUAL FINANCIAL REPORT OF KT CORPORATION (From January 1, 2021 to December 31, 2021) (Translation of the Annual Report filed in Korean with the Financial Supervisory Service of Korea) Table of Contents Table of Contents I. Corporate General 2 1. Corporate Purpose of KT Corporation 2 2. History 4 3. Total Number of Shares and Related Matters 5 II. Business Details 6

April 14, 2022 6-K

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 April 2022 Commission File Number 1-14926 KT Corporation (Tr

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 April 2022 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) Ind

March 31, 2022 6-K

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 March 2022 Commission File Number 1-14926 KT Corporation (Tr

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 March 2022 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) Ind

March 11, 2022 6-K

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 March 2022 Commission File Number 1-14926 KT Corporation (Tr

Table of Contents 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 March 2022 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 exec

March 10, 2022 6-K

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 March 2022 Commission File Number 1-14926 KT Corporation (Tr

Table of Contents 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 March 2022 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 exec

February 22, 2022 6-K

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 February 2022 Commission File Number 1-14926 KT Corporation

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 February 2022 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)

February 15, 2022 6-K

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 February 2022 Commission File Number 1-14926 KT Corporation

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 February 2022 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)

February 9, 2022 6-K

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 February 2022 Commission File Number 1-14926 KT Corporation

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 February 2022 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)

February 9, 2022 6-K

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 February 2022 Commission File Number 1-14926 KT Corporation

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 February 2022 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)

February 9, 2022 6-K

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 February 2022 Commission File Number 1-14926 KT Corporation

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 February 2022 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)

February 3, 2022 6-K

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 February 2022 Commission File Number 1-14926 KT Corporation

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 February 2022 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)

January 28, 2022 6-K

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 January 2022 Commission File Number 1-14926 KT Corporation (

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 January 2022 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) I

January 27, 2022 6-K

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 January 2022 Commission File Number 1-14926 KT Corporation (

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 January 2022 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) I

January 18, 2022 6-K

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 January 2022 Commission File Number 1-14926 KT Corporation (

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 January 2022 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) I

November 29, 2021 6-K

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 November 2021 Commission File Number 1-14926 KT Corporation

Table of Contents 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 November 2021 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 e

November 19, 2021 6-K

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 November 2021 Commission File Number 1-14926 KT Corporation

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 November 2021 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)

November 15, 2021 6-K

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 November 2021 Commission File Number 1-14926 KT Corporation

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 November 2021 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)

November 9, 2021 6-K

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 November 2021 Commission File Number 1-14926 KT Corporation

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 November 2021 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)

November 2, 2021 6-K

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 November 2021 Commission File Number 1-14926 KT Corporation

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 November 2021 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)

August 27, 2021 6-K

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 August 2021 Commission File Number 1-14926 KT Corporation (T

Table of Contents 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 August 2021 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 exe

August 10, 2021 6-K

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 August 2021 Commission File Number 1-14926 KT Corporation (T

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 August 2021 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) In

August 2, 2021 6-K

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 August 2021 Commission File Number 1-14926 KT Corporation (T

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 August 2021 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) In

June 21, 2021 6-K

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 June 2021 Commission File Number 1-14926 KT Corporation (Tra

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 June 2021 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) Indi

May 28, 2021 6-K

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 May 2021 Commission File Number 1-14926 KT Corporation (Tran

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 May 2021 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) Indic

May 11, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

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 May 2021 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) Indic

May 4, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

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 May 2021 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) Indic

April 30, 2021 EX-1

Articles of Incorporation of KT Corporation (English translation)

Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 March 29, 2021 - 1 - CHAPTER I.

April 30, 2021 20-F

- FORM 20-F

Table of Contents As filed with the Securities and Exchange Commission on April 30, 2021 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 30, 2021 EX-13.1

Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the laws of t

April 30, 2021 EX-12.2

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.2 CERTIFICATION I, Young-Jin Kim, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the

April 30, 2021 EX-12.1

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 12.1 CERTIFICATION I, Hyeon-Mo Ku, certify that: 1. I have reviewed this annual report on Form 20-F of KT Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the pe

April 23, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

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 April 2021 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) Ind

March 29, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

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 March 2021 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) Ind

March 10, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

Table of Contents 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 March 2021 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 exec

March 9, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

Table of Contents 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 March 2021 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 exec

February 9, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 February 2021 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

February 9, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 February 2021 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

February 9, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

6-K 1 d120140d6k.htm FORM 6-K 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 February 2021 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

February 8, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 February 2021 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

February 3, 2021 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 February 2021 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

November 30, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K Table of Contents 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 November 2020 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 pr

November 6, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 November 2020 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

November 6, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 November 2020 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

November 6, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 November 2020 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

October 30, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 October 2020 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 o

October 13, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 October 2020 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 o

September 1, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K Table of Contents 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 September 2020 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 p

August 7, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 August 2020 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 of

July 31, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 July 2020 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 offi

June 16, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 June 2020 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 offi

June 16, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 June 2020 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 offi

June 1, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 May 2020 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 offic

May 29, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 May 2020 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 offic

May 13, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 May 2020 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 offic

May 12, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 May 2020 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 offic

May 6, 2020 6-K

Current Report of Foreign Issuer - FORM 6-K

Form 6-K 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 May 2020 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 offic

April 29, 2020 EX-1

Articles of Incorporation of KT Corporation (English translation)

EX-1 Exhibit 1 THE ARTICLES OF INCORPORATION OF KT Corporation Adopted on October 1, 1997 Amended on December 8, 1997 September 18, 1998 March 19, 1999 March 24, 2000 March 21, 2001 March 22, 2002 August 20, 2002 March 14, 2003 March 12, 2004 March 11, 2005 August 19, 2005 March 10, 2006 March 16, 2007 January 14, 2009 March 27, 2009 March 12, 2010 March 11, 2011 March 16, 2012 March 15, 2013 March 27, 2015 March 25, 2016 March 24, 2017 March 23, 2018 March 29, 2019 March 30, 2020 CHAPTER I.

April 29, 2020 EX-13.1

Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

EX-13.1 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of KT Corporation, a corporation organized under the l

April 29, 2020 20-F

- FORM 20-F

Form 20-F Table of Contents As filed with the Securities and Exchange Commission on April 29, 2020 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

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