POSCO HOLDINGS (PKX) clarifies media report and MOU with Cleveland Cliffs

Rhea-AI Filing Summary

POSCO HOLDINGS INC. filed a report addressing a Korean media article about potential large-scale investments linked to its overseas steel strategy. The company explains that, as part of its plan to seek growth overseas and expand in the high-profit U.S. steel market, it has signed a memorandum of understanding (MOU) with Cleveland Cliffs.

POSCO states that discussions are underway with Cleveland Cliffs regarding equity ownership and the size of a possible investment, but confirms that no decisions have been finalized. The company indicates it will provide another disclosure when specific matters are decided or by April 1, 2026, referencing an earlier related disclosure dated December 8, 2025.

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 January, 2026

Commission File Number: 1-13368

POSCO HOLDINGS INC.

(Translation of registrant’s name into English)

POSCO Center, 440 Teheran-ro, Gangnam-gu, Seoul, Korea, 06194

(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 ☐

Response to Rumors or Media Reports : Undetermined

December 5, 2025		This announcement is a follow-up to the one released on the date of left cell.
1. Contents of rumors or media reports				Kim Jae-Chul vies to win the 10 trillion won HMM acquisition battle, which he describes as the crown jewel of his business ambition
2. Channel of rumors or media reports				Maeil Business Newspaper
3. Distributed date of rumors or media reports				December 5, 2025
4. Company’s explanation for rumors or media reports
- This disclosure is an official notice of “Kim Jae-Chul vies to win the 10 trillion won HMM acquisition battle, which he describes as the crown jewel of his business ambition” published by Maeil Business Newspaper on December 5, 2025. - As a part of the company’s steel business strategy to seek growth overseas and to expand our presence in the high-profit US market, POSCO HOLDINGS has signed an MOU with Cleveland Cliffs. Discussions are underway regarding equity ownership and investment size; however, no decisions have been finalized. - In this regard, we will re-disclose the information when specific matters are decided in the future or within three months. (Person in charge of disclosure) Han, Young Ah, Executive Vice President
5. Re-disclosure date				April 1, 2026
※ Related disclosure				December 8, 2025 Response to Rumors or Media Reports: Undetermined

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.

				POSCO HOLDINGS INC.
				(Registrant)
Date: January 5, 2026				By		/s/ Han, Young Ah
						(Signature)
						Name: Han, Young Ah
						Title: Senior Vice President

FAQ

What does POSCO HOLDINGS INC. (PKX) disclose in this 6-K?

The company explains a media report about potential large-scale investments and confirms it has signed an MOU with Cleveland Cliffs as part of its overseas steel growth strategy, while emphasizing that no final decisions have been made.

What agreement has POSCO HOLDINGS INC. (PKX) signed with Cleveland Cliffs?

POSCO HOLDINGS has signed a memorandum of understanding (MOU) with Cleveland Cliffs to support its strategy of seeking steel business growth overseas and expanding its presence in the high-profit U.S. market.

Have equity ownership and investment size been decided between POSCO and Cleveland Cliffs?

No. POSCO states that discussions with Cleveland Cliffs regarding equity ownership and investment size are underway, but that no decisions have been finalized.

How does POSCO respond to the media report about a 10 trillion won HMM acquisition battle?

POSCO describes its disclosure as an official notice regarding the Maeil Business Newspaper article titled “Kim Jae-Chul vies to win the 10 trillion won HMM acquisition battle,” and clarifies its own actions by focusing on the MOU with Cleveland Cliffs and ongoing, undecided discussions.

When will POSCO HOLDINGS INC. provide further updates on the MOU and related plans?

POSCO states it will re-disclose information when specific matters are decided in the future or by April 1, 2026.

Is there a related prior disclosure mentioned by POSCO HOLDINGS INC.?

Yes. The company notes a related disclosure dated December 8, 2025 concerning its response to rumors or media reports.