POSCO Holdings reviews Australian iron production project

The company says investment, business structure and implementation timing remain undecided, with an update tied to any decision on specifics.

Rhea-AI Filing Summary

POSCO HOLDINGS INC. (PKX) said it is reviewing the feasibility of an HBI (Hot Briquetted Iron) production project in Port Hedland, Western Australia, responding to Seoul Business Newspaper’s October 21, 2026 report about a low-carbon steel project in Australia. The company described HBI as one of many critical feedstock required to achieve carbon net-zero.

No decisions have been made on the actual investment, specific business structure or implementation schedule. POSCO said that, if and when specifics are determined, it will add to the disclosure at or within one month of the decision; it lists November 20, 2026 as the re-disclosure date. Executive Vice President Young Ah Han is identified as the disclosure contact and signed on behalf of the company.

Key Figures

Re-disclosure date: November 20, 2026 Addendum timing after a decision: At or within 1 month

2 metrics

Re-disclosure date November 20, 2026 Date listed for the disclosure update

Addendum timing after a decision At or within 1 month If and when project specifics are determined

Key Terms

HBI (Hot Briquetted Iron), carbon net-zero, feedstock

3 terms

HBI (Hot Briquetted Iron) technical

"HBI (Hot Briquetted Iron) production project"

carbon net-zero technical

"required to achieve carbon net-zero"

feedstock technical

"one of many critical feedstock required"

Feedstock is the raw material—such as crude oil, natural gas, agricultural crops, or recycled plastics—used as the primary input to make fuels, chemicals, plastics, or other industrial products; think of it as the ingredients you put into a factory recipe. For investors, feedstock matters because its price, supply stability and quality directly shape producers’ costs, profit margins and ability to meet demand, so shifts in feedstock markets can alter company earnings and valuations.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When will POSCO update its HBI project disclosure?

POSCO lists November 20, 2026 as the re-disclosure date. It also says that, if and when specifics are determined, an addendum will be made at or within one month of the decision.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 6-K: How Foreign Companies Report to the SEC →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 10/21/2026 - 07:00 AM EDT Accepted by SEC EDGAR 10/21/2026 - 07:00 AM EDT 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 October, 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

Subsidiary Affiliated company		POSCO’s material business matters to report
1. Contents of rumors or media reports		POSCO speeds up KRW 4 trillion ‘low-carbon steel’ project in Australia
2. Channel of rumors or media reports		Seoul Business Newspaper
3. Distributed date of rumors or media reports		October 21, 2026
4. Company’s explanation for rumors or media reports
- This disclosure presents an official clarification to the report “POSCO speeds up KRW 4 trillion ‘low-carbon steel’ project in Australia,” published by Seoul Business Newspaper on October 21, 2026. - As one of many critical feedstock required to achieve carbon net-zero, the Company is reviewing the feasibility of an HBI (Hot Briquetted Iron) production project in Port Hedland, Western Australia. However, at this review stage, no decisions have been made to the actual investment, specific business structure, or implementation schedule. - If and when specifics are determined, we will make an addendum to this disclosure at or within 1 month of the decision. (Person in charge of disclosure) Han, Young Ah, Executive Vice President
5. Re-disclosure date		November 20, 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.

				POSCO HOLDINGS INC.
				(Registrant)
Date: October 21, 2026				By		/s/ Han, Young Ah
				(Signature)
				Name: Han, Young Ah
				Title: Executive Vice President