PKX 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OFFOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR15D-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of February, 2025

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 ☐

Notice of the Record Date for Year-EndDividend

Pursuant to Article 55(Dividends) of the Articles of Incorporation of the Company, the Company designates the record date for the year-end dividend of 2024 as below

1. Record Date: February 28, 2025 (Seoul Time)

2. Purpose: To finalize the list of shareholders eligible for the receipt of the year-end dividend for year 2024

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.