[6-K] KOREA ELECTRIC POWER CORP Current Report (Foreign Issuer)

Rhea-AI Filing Summary

Korea Electric Power Corporation reported a procedural change in an arbitration related to an operational support services contract for the UAE nuclear power plant project. Korea Hydro & Nuclear Power Co., Ltd. and its counterparty mutually agreed to withdraw the case from the London Court of International Arbitration. The parties submitted an agreement to change the competent forum, and arbitration proceedings will continue before the Korean Commercial Arbitration Board.

Key Figures

Filing date: June 22, 2026 Confirmation date: June 22, 2026 Signature date: June 23, 2026

3 metrics

Filing date June 22, 2026 Form 6-K filing date for UAE arbitration update

Confirmation date June 22, 2026 Date the arbitration venue change was confirmed

Signature date June 23, 2026 Date KEPCO executed the Form 6-K

Key Terms

foreign private issuer, London Court of International Arbitration, Korean Commercial Arbitration Board, operational support services contract, +1 more

5 terms

foreign private issuer regulatory

"FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER Pursuant to Rule 13a-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

London Court of International Arbitration legal

"Court of Jurisdiction: London Court of International Arbitration("LCIA")"

Korean Commercial Arbitration Board legal

"Arbitration proceedings to continue at the Korean Commercial Arbitration Board"

operational support services contract financial

"Arbitration regarding the operational support services contract for the UAE nuclear power plant project"

Form 6-K regulatory

"FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER"

A Form 6-K is a report that companies listed in certain countries file to provide important updates, such as financial results, corporate changes, or other significant information, to regulators and investors. It functions like an official company update or news release, helping investors stay informed about developments that could affect their investment decisions.

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Available on EDGAR 06/23/2026 - 07:41 AM Accepted by SEC EDGAR 06/23/2026 - 07:41 AM Learn about SEC filing dates

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 June 2026

Commission File Number 001-13372

KOREA ELECTRIC POWER CORPORATION

(Translation of registrant’s name into English)

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

(Address of principal executive offices)

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

Form 20-F ☒   Form 40-F ☐

Report on Legal Proceedings

1. Title of the Lawsuit: Arbitration regarding the operational support services contract for the UAE nuclear power plant project

• Case No.: LCIA Arbitration No : 256584

2. Claimant: Korea Hydro & Nuclear Power Co., Ltd.(“KHNP”)

3. Summary of the Lawsuit: Withdrawal of arbitration by mutual agreement between the parties(Arbitration proceedings to continue at the Korean Commercial Arbitration Board)

4. Amount Claimed:

• Amount Claimed: -

• Total Equity of Korea Electric Power Corporation(“KEPCO”): KRW 49,323 billion

5. Rationale for court ruling or decision : Submission of an agreement between the parties to change the competent court

6. Court of Jurisdiction: London Court of International Arbitration(“LCIA”)

7. Planned Action: -

8. Filing Date: June 22, 2026

9. Confirmation Date: June 22, 2026

10. Other Information for an Investment Decision:

• The arbitration mentioned above is being withdrawn from the LCIA pursuant to a mutual agreement between both parties to change the dispute resolution forum from the LCIA to the Korean Commercial Arbitration Board(“KCAB”).

• As the arbitration was withdrawn by mutual agreement, the settlement amount is not applicable and has been omitted.

• The total equity of KEPCO above is based on the consolidated statements of the fiscal year 2025.

• The date of court ruling or decision referenced above indicates the date on which the LCIA determined the termination of the arbitration proceeding.

• The confirmation date referenced above indicates the date on which the KEPCO confirmed the termination of the arbitration proceeding from the LCIA.

• Related Disclosure: Reports on Legal Proceedings dated May 7, 2025, May 8, 2025 and May 22, 2026.

SIGNATURES

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

By:		/s/ Joo, Hwa-sik
Name: Joo, Hwa-sik
Title: Vice President

Date: June 23, 2026

FAQ

What legal matter did KEPC (KEP) report in this Form 6-K?

KEPC reported an arbitration concerning an operational support services contract for the UAE nuclear power plant project. The case involves Korea Hydro & Nuclear Power Co., Ltd. and has undergone a change in arbitration venue agreed by the parties.

Which company is the claimant in KEPC (KEP)'s UAE nuclear arbitration?

The claimant is Korea Hydro & Nuclear Power Co., Ltd. (KHNP). KHNP is involved in an arbitration concerning an operational support services contract for the UAE nuclear power plant project, as described in KEPC’s Form 6-K filing.

What change occurred in KEPC (KEP)'s UAE arbitration venue?

The parties mutually agreed to withdraw the arbitration from the London Court of International Arbitration. They submitted an agreement to change the competent forum, and the proceedings will continue at the Korean Commercial Arbitration Board instead.

Will KEPC (KEP)'s UAE nuclear arbitration continue after this change?

Yes. The arbitration proceedings will continue at the Korean Commercial Arbitration Board. Only the competent forum changed by mutual agreement, while the underlying arbitration related to the UAE nuclear project operational support services contract remains ongoing.

When did KEPC (KEP) file and confirm this arbitration update?

The filing date and confirmation date are both June 22, 2026. KEPC then signed the Form 6-K report on June 23, 2026, formally disclosing the change in arbitration venue and related procedural details.