PKX 6-K 2026 - Equibles

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 February, 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 ☐

To Shareholders

Notice of the 58^th^ Ordinary General Meeting of Shareholders

We hereby notify you that the 58^th^ Ordinary General Meeting of Shareholders will be held pursuant to Article 362 of the Korean Commercial Act and Article 20 of the Company’s Articles of Incorporation as follows :

1. Date: At 9:00 a.m.on March 24, 2026, Korea Standard Time (UTC+9)

2. Place: Art Hall, 4F West Wing, POSCO Center, 440 Teheran-ro, Gangnam-gu, Seoul,Korea

3. List of Agenda Items

●Agenda 1 :	Approval of Financial Statements for the 58^th^ FY
****	(From January 1, 2025 to December 31, 2025)
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****	(Year-end dividend per share : KRW 2,500)
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•	Consolidated Financial Statements: See Appendix 1
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•	Separate Financial Statements: See Appendix 2
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The audit report from the independent auditors of 58^th^ FY Financial Statements, based on K-IFRS standards, will be uploaded at POSCO HOLDINGS INC.’s website (http://www.posco-inc.com) on March 11, 2026.

● Agenda 2: Partial Amendments of the Articles of Incorporation

[Description of the Proposal]

Pursuant to Article 433 of the Korean Commercial Act and Article 24 of the Company’s Articles of Incorporation, we request that the Ordinary General Meeting of Shareholders to approve partial amendments of the Articles of Incorporation.

-	2-1 : Title Change to Independent Director
-	2-2 : Increase Audit Committee Members to be Separately Appointed
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-	2-3 : Expand Voting Restrictions per the Appointment/Dismissal ofAudit Committee Members
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-	2-4 : Introduce Electronic General Shareholder Meeting
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-	2-5 : Delete Provision Regarding Separate Cumulative Voting
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Agenda		Before Amendment		After Amendment		Purpose of Change
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2-1		Article 27. Number of the Directors<br> <br><br><br><br>The total number of Directors of the Company shall be at least three (3) but no more than thirteen (13) Directors, among which the Outside<br>Directors shall be eight (8) persons or less and Inside Directors shall be five (5) persons or less. The Outside Directors shall constitute the majority of the total number of the Directors.		Article 27. Number of the Directors<br> <br><br><br><br>The total number of Directors of the Company shall be at least three (3) but no more than thirteen (13) Directors, among which the Independent<br>Directors shall be eight (8) persons or less and Inside Directors shall be five (5) persons or less. The Independent Directors shall constitute the majority of the total number of the Directors.		Title change aligned to Commercial Act amendment
		Article 30. Recommendation of Candidate for OutsideDirectors<br> <br><br> <br>(1) A candidate for Outside Director shall be recommended by<br>the Director Candidate Recommendation Committee as prescribed in Paragraph (1) of Article 45. Such candidates shall be among those qualified persons as prescribed in Article 31.<br><br><br><br> <br>(2) A shareholder holding voting shares of the Company may recommend a candidate for<br>Outside Director to the Director Candidate Recommendation Committee by the exercise of the shareholder proposal right under the applicable legislation.<br> <br><br><br><br>(3) The Director Candidate Recommendation Committee shall determine the details regarding recommendation for, and evaluation on qualification of, candidates<br>for Outside Director.		Article 30. Recommendation of Candidate for IndependentDirectors<br> <br><br> <br>(1) A candidate for Independent Director shall be<br>recommended by the Director Candidate Recommendation Committee as prescribed in Paragraph (1) of Article 45. Such candidates shall be among those qualified persons as prescribed in Article 31.<br><br><br><br> <br>(2) A shareholder holding voting shares of the Company may recommend a candidate for<br>Independent Director to the Director Candidate Recommendation Committee by the exercise of the shareholder proposal right under the applicable legislation.<br> <br><br><br><br>(3) The Director Candidate Recommendation Committee shall determine the details regarding recommendation for, and evaluation on qualification of, candidates<br>for Independent Director.

	Article 31. Qualification for Candidate for Outside Directors<br><br><br><br> <br>An Outside Director must have sufficient and professional knowledge or experience<br>in the areas of industry, finance, education, law, accounting and public administration and also must be qualified under the relevant laws.	Article 31. Qualification for Candidate for Independent Directors<br><br><br><br> <br>An Independent Director must have sufficient and professional knowledge or<br>experience in the areas of industry, finance, education, law, accounting or public administration and also must be qualified under the relevant laws.
	Article 35.By-Election<br> <br><br> <br>(2) In the event that the<br>number of Outside Directors is less than a majority of total number of Directors due to death or resignation of Outside Directors or for any other reason, Outside Directors shall be elected to fill the vacancy at the General Meeting of Shareholders<br>to be held first after such cause so as for the number of Outside Directors to constitute a majority of total number of Directors.	Article 31.By-Election<br> <br><br> <br>(2) In the event that the<br>number of Independent Directors is less than a majority of total number of Directors due to death or resignation of Independent Directors or for any other reason, Independent Directors shall be elected to fill the vacancy at the<br>General Meeting of Shareholders to be held first after such cause so as for the number of Independent Directors to constitute a majority of total number of Directors.
	Article 36. Remuneration of Directors<br><br><br><br> <br>(3) The Company may pay to Outside Directors for expenses incurred during performance of<br>services as required of Outside Directors.	Article 36. Remuneration of Directors<br><br><br><br> <br>(3) The Company may pay to Independent Directors for expenses incurred during<br>performance of services as required of Independent Directors.
	Article 40. Chairman of the Board of Directors<br><br><br><br> <br>(1) The Chairman of the Board shall be appointed by the resolution of the Board of<br>Directors among Outside Directors.<br> <br><br> <br>(3) In the event that the Chairman of the Board<br>cannot preside at a Meeting of the Board of Directors, Outside Director in order of seniority (if the seniority is the same, the oldest has the priority) shall take his place as Chairman of the Board.	Article 40. Chairman of the Board of Directors<br><br><br><br> <br>(1) The Chairman of the Board shall be appointed by the resolution of the Board of<br>Directors among Independent Directors.<br> <br><br> <br>(3) In the event that the Chairman of<br>the Board cannot preside at a Meeting of the Board of Directors, an Independent Director in order of seniority (if the seniority is the same, the oldest has the priority) shall take his place as Chairman of the Board.
	Article 48. Constitution and Appointment of Members of AuditCommittee<br> <br><br> <br>(1) The Audit Committee of the Company shall consist of three<br>(3) or more Directors. All of the members shall be elected from among the Outside Directors.	Article 48. Constitution and Appointment of Members of AuditCommittee<br> <br><br> <br>(1) The Audit Committee of the Company shall consist of three<br>(3) or more Directors, all of whom shall be Independent Directors. ****
2-2	Article 48. Constitution and Appointment of Members of AuditCommittee<br> <br><br> <br>(1) The Audit Committee of the Company shall consist of three<br>(3) or more Directors. All of the members shall be elected from among the Outside Directors.	Article 48. Constitution and Appointment of Members of AuditCommittee<br> <br><br> <br>(1) The Audit Committee of the Company shall consist of three<br>(3) or more Directors, all of whom shall be Independent Directors. After Directors are elected at a General Meeting of Shareholders, the Company shall appoint the members of the Audit Committee from among the elected Directors;<br>provided, however, that two (2) members of the Audit Committee shall be elected by a resolution of the General Meeting of Shareholders as Directors who are also members of the Audit Committee, separately from the other Directors.	AOI amendment to raise the number of Audit Committee members to be separately appointed

2-3	Article 48. Constitution and Appointment of Members of Audit Committee<br><br><br><br> <br>(2) A member of the Audit Committee shall be appointed or dismissed at the General<br>Meeting of Shareholders. When appointing a member of the Audit Committee, a shareholder holding more than three percent (3%) of the Company’s issued and outstanding shares shall not be entitled to exercise his voting rights for that excess<br>portion.	Article 48. Constitution and Appointment of Members of Audit Committee<br><br><br><br> <br>(2) A member of the Audit Committee shall be appointed or dismissed at the General<br>Meeting of Shareholders. When appointing or dismissing a member of the Audit Committee, a shareholder holding more than three percent (3%) of the Company’s issued and outstanding shares with voting rights (if such shareholder is the<br>largest shareholder, for calculating the number of shares held by the largest shareholder, his/her shares, along with those owned by his/her specially related person(s), and other person(s) specified by the Enforcement Decree of the Korean<br>Commercial Code, shall be added up together) shall not be entitled to exercise his voting rights for that excess portion.	Explicit language to restrict voting beyond 3% voting shares per the appointment /dismissal of Audit Committee members
2-4	Article 19. Convening of General Meeting of Shareholders<br><br><br><br> <br>—	Article 19. Convening of General Meeting of Shareholders<br><br><br><br> <br>(5) The Company shall hold General Meetings of Shareholders in a manner that allows<br>some shareholders to participate in and vote on resolutions from remote locations by electronic means, without being physically present at a venue of the meeting.	AOI amended to introduce electronic GSM
	Article 23. Vote by Proxy<br><br><br><br> <br>(2) A proxy shall submit a document evidencing the power of representation to the<br>Company before the opening of the General Meeting of Shareholders.	Article 23. Vote by Proxy<br><br><br><br> <br>(2) A proxy shall submit a document or an electronic document evidencing the<br>power of representation to the Company before the opening of the General Meeting of Shareholders.
2-5	Article 28. Election of the Directors and RepresentativeDirectors<br> <br><br> <br>(3) If Directors are appointed by a cumulative voting, the Inside<br>Directors and the Independent Outside Directors are separately considered, and then, the cumulative voting shall apply to each group.	Article 28. Election of the Directors and RepresentativeDirectors<br> <br><br> <br>—	AOI amended to introduce unified cumulative voting

—		—		ADDENDA 1. Effective Date (March 24, 2026)<br> <br><br><br><br>The amended Articles of Incorporation shall be effective from the date on which they are approved by the resolution at the Ordinary General Meeting of<br>Shareholders for the 58th fiscal year.		—
		—		ADDENDA 2. Transitional Measures for a Venue and Method of aGeneral Meeting of Shareholders, and Proxy Voting (March 24, 2026)<br> <br><br> <br>The<br>amended provisions of Article 19 and Article 23, Paragraph (2) shall come into force on January 1, 2027.
		—		ADDENDA 3. Transitional Measures for Voting Restrictions forElection and Dismissal of Independent Directors and Audit Committee Members (March 24, 2026)<br> <br><br><br><br>The amended provisions of Articles 27, 30, 31, 35, 36, 40, and 48 shall come into force on July 23, 2026; provided, however, that the amended provision<br>of the second sentence of Article 48, Paragraph (1) shall be effective from the date on which it is approved by the resolution at the Ordinary General Meeting of Shareholders for the 58th fiscal year.

● Agenda 3: Appointment of Inside Director

[Description of the Proposal]

Pursuant to Article 382 of the Korean Commercial Act and Article 28 of the Company’s Articles of Incorporation, we request the Ordinary General Meeting of Shareholders to appoint three(3) Inside Directors of the Company as follows.

•	Number of Inside Directors to be Appointed: 3 Directors
•	Candidates
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-	3-1: Appointment of LEE, Ju Tae as Inside Director
-	3-2: Appointment of KIM, Ki Soo as Inside Director
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-	3-3: Appointment of CHUNG, Seok Mo as Inside Director
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Name/<br><br><br>Agenda		Date of Birth		Professional Experience		Term
---	---	---	---	---	---	---
		Recommended<br><br><br>by
LEE, Ju Tae<br><br><br>(3-1)		February 25, 1964		2025.3~ (Present) Head, Corporate Strategy Division (President), POSCO HOLDINGS INC.		1 Year
				2024.4 (Former) Head, Corporate Strategy Team (Sr. EVP),<br>POSCO HOLDINGS INC.
		Board of Directors		2023.3 (Former) Head, Corporate Planning & Finance<br>Division (Sr. EVP & Inside Director), POSCO
				2021.1 (Former) Head, Purchasing and Investment Division<br>(Sr. EVP), POSCO
				2019.1 (Former) Head of Management Strategy Office (EVP),<br>POSCO
				2018.2 (Former) Representative President (EVP), POSCO Asia<br>(Hong Kong)
				2015.3 (Former) Representative President (Sr.VP), POSCO Asia<br>(Hong Kong)
				2014.7 (Former) Representative President (Sr.VP), POSCO-America<br>(USA)
KIM, Ki Soo<br><br><br>(3-2)		April 18, 1965		2024.3~ (Present) Head, New Experience of Technology Hub, Group CTO<br>(Sr. EVP & Inside Director), POSCO HOLDINGS INC.		1 Year
				2024.1 (Former) Head, Technical Research Laboratories (Sr.<br>EVP), POSCO
		Board of Directors		2020.1 (Former) Head,<br>Low-Carbon Process R&D Center (EVP), POSCO
				2017.2 (Former) Head, Engineering Solution Office (Sr. VP),<br>POSCO
				2014.6 (Former) Head, Research Infrastructure Group (VP),<br>POSCO
CHUNG,<br><br><br>Seok Mo<br> <br>(3-3)		November 3, 1966		2025.12~ (Present) Head, Business Synergy Division (Sr. EVP), POSCO<br>HOLDINGS INC.		1 Year
				2025.1 (Former) Head, Industrial Gas Business Unit (EVP),<br>POSCO & (concurrently) President, POSCO ZHONGTAI AIR SOLUTION
				2022.2 (Former) Head, Industrial Gas Business TF Team (EVP),<br>POSCO
		Board of Directors		2020.1 (Former) Head, Secondary Battery Materials Business<br>Office (Sr. VP), POSCO
				2018.1 (Former) President, eNtoB
*	All candidates have no relation with the largest shareholder and no transactions with POSCO HOLDINGS INC. in<br>the past three years.
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*	All candidates stated and signed that they do not have any legal issues to be qualified for Inside Directors.<br>
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•	Recommendation for candidates by the Board of Directors
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Name/<br><br><br>Agenda		Grounds
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LEE, Ju Tae<br><br><br>(3-1)		In his capacity as head of Corporate Strategy Division, Mr. Lee contributed to enhancing the Company’s future business portfolio through investment in overseas steel production and securing prominent lithium assets for<br>rechargeable battery materials. His rich knowledge and experience across the Group’s businesses will help to strengthen effective decision-making on key matters and generate outcomes in future businesses.

KIM, Ki Soo<br><br><br>(3-2)		As Head of POSCO N.EX.T Hub, Mr. Kim helped to innovate Corporate R&D system led by the holding company and define the Group’s DX strategy. By leveraging his expertise in steel research and leadership in technology<br>development, Mr. Kim will contribute to reinforcing the Group’s AX and developing advanced technology to outperform competition and secure business competitiveness.
CHUNG, Seok Mo<br><br><br>(3-3)		Utilizing his broad range of experience and deep insight across steel,<br>rechargeable battery materials, and industrial gas in his role as the Head of the Business Synergy Division, Mr. Chung will help to strengthen the native competence of the Group’s core businesses and accelerate the process to redefine the<br>Group’s business structure.

● Agenda 4: Appointment of LEE, Hee Geun as Non-StandingDirector

[Description of the Proposal]

Pursuant to Article 382 of the Korean Commercial Act and Article 28 of the Company’s Articles of Incorporation, we request the Ordinary General Meeting of Shareholders to appoint one(1) Non-Standing Director of the Company as follows.

•	Number of Non-Standing Directors to be Appointed: 1 Director
•	Candidates
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		Date of Birth		Professional Experience		Term
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Name/<br><br><br>Agenda		Recommended<br><br><br>by
LEE,<br><br><br>Hee Geun		December 28, 1962		2025.3~ (Present) Representative Director & President, POSCO		1 Year

				2024.11 (Former) Head, Facilities Competitiveness Enhancement TF Team (Sr.EVP)
		Board of Directors		2023.3 (Former) Head, Safety & Environment Division (Inside Director & Sr.EVP)
				2021.3 (Former) Representative Director & President, POSCO M-Tech
				2018.1 (Former) Deputy Head, Pohang Works Iron and Steelmaking Sector (Sr.VP), POSCO
*	The candidates have no relation with the largest shareholder and no transactions with POSCO HOLDINGS INC. for<br>the past three years.
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*	The candidates stated and signed that they do not have any legal issues to be qualified for Non-Standing Director.
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•	Recommendation for the candidates by the Board of Directors
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Name		Grounds
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LEE,<br><br><br>Hee Geun		Serving as the Representative Director of POSCO, Mr. Lee helped to enhance the fundamental competitiveness and profitability of the steel business. His participation in the holding company board will reinforce close<br>collaboration with POSCO and significantly assist the board in rational decision-making on various challenges faced by the Group.

●Agenda 5: Appointment of KIM, Joo Youn as Outside Director

[Description of the Proposal]

Pursuant to Article 382 of the Korean Commercial Act, Article 28 and 30 of the Company’s Articles of Incorporation, we request the Ordinary General Meeting of Shareholders to appoint one(1) Outside Director of the Company as follows.

•	Number of Outside Directors to be Appointed: 1 Director
•	Candidates
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		Date of Birth		Professional Experience		Term
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Name/<br>Agenda		Recommended<br><br><br>by
KIM,<br><br><br>Joo Youn		June 29, 1967		2023~ (Present) Outside Director, SK Innovation Co., Ltd.		3 Years
				2019~2022 (Former) Vice Chair, P&G Korea/Japan & Global Chief Marketing Officer, P&G Grooming
				2018~2019 (Former) Vice President, P&G Gillette Asia
		Director Candidate Recommendation Committee		2016~2018 (Former) CEO, P&G Korea
				2012~2015 (Former) Marketing Director, P&G Asia-Pacific India
				2011~2012 (Former) Global Brand Franchise Leader, P&G
				2005~2010 (Former) Marketing Director, P&G Korea

* The candidates have no relation with the largest shareholder and no transactions with POSCO HOLDINGS INC. for the past three years.

* The candidates stated and signed that they do not have any legal issues to be qualified for Outside Directors.

•	Candidates’ plan to fulfill duties as Outside Directors
Name		Working Plan
---	---	---
KIM,<br><br><br>Joo Youn		The candidate has previously served in multiple leadership roles at P&G; they include CEO of P&G Korea, Global Chief<br>Marketing Officer (CMO) of P&G Grooming, and Vice Chair for P&G Korea/Japan. In her new position, Kim intends to leverage her extensive experience as an executive at a global corporation and service on the<br>board to assess internal/external management risks and business strategies to offer proactive and explicit advice from the perspective of shareholders and stakeholders.<br><br><br><br> <br>As an outside director, Kim will exercise integrity<br>to perform the assigned duties with transparency and independence to cast a balanced view by representing the interests of the company and its shareholders and other<br>stakeholders. Finally, the candidate aims to contribute to sustainable growth of the business by providing reasonable checks and balances on corporate operations and advising<br>strong internal controls.
•	Recommendation for the candidates by the Board of Directors
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Name		Grounds
KIM,<br><br><br>Joo Yeon		With extensive experience in business management and brand operations, Ms. Kim’s career at P&G spans multiple leadership<br>roles, i.e., Representative Director and President of P&G Korea, Global Chief Marketing Officer (CMO) of P&G Grooming, and Vice Chair for Korea/Japan.<br> <br><br><br><br>At P&G Global, Ms. Kim served on the board as the head of the leadership council; after retiring from P&G, she was appointed as outside director<br>to SK Innovation, a Korean company, helping to improve the management and governance structure through her service on the board, i.e., the HR Evaluation and Remuneration Committee, Strategy and ESG Committee.<br><br><br><br> <br>Through her experience in business management and marketing at a global company and work<br>as an outside director at a Korean company, Ms. Kim will assist board operations by providing insights and help strengthen the Company’s growth and sustainability

● Agenda 6: Appointment of KIM, Joon Gi as Outside Director to Serve on the Audit Committee

Pursuant to Article 542-12 of the Korean Commercial Act and Article 48 of the Company’s Articles of Incorporation, we request the Ordinary General Meeting of Shareholders to appoint one (1) Outside Director to serve on the Audit Committee of the Company as follows.

•	Number of Outside Directors to Serve on the Audit Committee: 1 Director
•	Candidates
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		Date of Birth		Professional Experience		Term
---	---	---	---	---	---	---
Name/<br><br><br>Agenda		Recommended<br><br><br>by
KIM,<br><br><br>Joon Gi		May 13, 1965		2023~ (Present) Outside Director, POSCO HOLDINGS INC.		3 Years
				2024~ (Present) Co-Chair, International Bar Association (IBA) Asia Pacific Arbitration Group
				2021~ (Present) Member/Alternative member, ICC International Court of Arbitration
				2018~ (Present) Member, International Arbitration Committee, KCAB International
		Director Candidate Recommendation Committee		2013~ (Present) Arbitrators, International Centre for Settlement of Investment Disputes (ICSID)
				2008~ (Present) Professor of Law, Yonsei University Law School
				1998~2008 (Former) Professor, Graduate School of International Studies, Yonsei University
				2003~2007 (Former) Founding Executive Director, Hills Governance Center in Korea
				1995~1998 (Former) Professor of Business Administration, Hongik University
				1992~1995 (Former) Attorney, Foley & Lardner
*	The candidates have no relation with the largest shareholder and no transactions with POSCO HOLDINGS INC. for<br>the past three years.
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*	The candidates stated and signed that they do not have any legal issues to be qualified for Audit Committee<br>members.
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•	Recommendation for the candidates by the Board of Directors
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Name		Grounds
KIM, Joon Gi		As a law professor and professional expert in international trade and commerce laws and corporate governance enhancement, Mr. Kim has<br>served as arbitrator at domestic and international dispute settlement bodies and as Executive Director at the Hills Governance Center. He is also active in various research projects in international dispute resolution, trade and governance.<br><br><br><br> <br>Mr. Kim’s academic record and expertise gained from his legal practice will<br>provide insights in the business management and board operations, significantly enhancing the Company’s international competitiveness in governance.

● Agenda 7: Approval of Director Remuneration Limit (FY2026)

☐	The director remuneration limit (to be approved) in the FY 2026:

KRW 10.0 billion

☐	The ceiling amount (approved) of the total remuneration in the FY 2025:

KRW 10.0 billion

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: February 19, 2026	By	/s/ Han, Young Ah
	(Signature)
		Name: Han, Young Ah
		Title: Executive Vice President

Appendix 1

POSCO HOLDINGS INC.

(Formerly, POSCO)

and Subsidiaries

Consolidated Financial Statements

December 31, 2025 and 2024

(WithIndependent Auditors’ Report Thereon)

Table of Contents

		Page
Independent Auditors’ Report			TBD
Consolidated Financial Statements
Consolidated Statements of Financial Position			3
Consolidated Statements of Comprehensive Income			5
Consolidated Statements of Changes in Equity			6
Consolidated Statements of Cash Flows			8
Notes to the Consolidated Financial Statements			TBD

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of financial position

as of December 31, 2025 and 2024

(in millions of Won)
Assets
Cash and cash equivalents	4,5,23	~~W~~	7,049,800	6,767,898
Trade accounts and notes receivable, net	6,17,23,29,37		11,197,974	10,821,619
Other receivables, net	7,23,37		1,920,685	2,261,323
Other short-term financial assets	8,23		8,778,584	8,499,389
Inventories	9		13,624,433	14,143,500
Current income tax assets			78,704	140,494
Assets held for sale	10		20,167	608,758
Other current assets	16		813,522	786,943

Total current assets			43,483,869	44,029,924

Long-term trade accounts and notes receivable, net	6,23		19,708	27,779
Other receivables, net	7,23,37		1,635,253	1,306,329
Other long-term financial assets	8,23		3,060,842	2,571,651
Investments in associates and joint ventures	11		4,980,153	4,738,793
Investment property, net	13		1,691,625	1,955,896
Property, plant and equipment, net	14		42,292,820	39,846,828
Intangible assets, net	15		5,493,529	4,774,824
Defined benefit assets, net	21		360,112	409,147
Deferred tax assets	35		2,038,844	3,609,344
Other non-current assets	16		135,683	133,685

Total non-current assets			61,708,569	59,374,276

Total assets		~~W~~	105,192,438	103,404,200

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of financial position, continued

as of December 31, 2025 and 2024

(in millions of Won)
Liabilities
Trade accounts and notes payable	23,37	~~W~~	5,106,921		6,159,127
Short-term borrowings and current installments of long-term borrowings	4,17,23		12,117,422		11,115,747
Other payables	18,23,37		3,544,717		3,463,872
Other short-term financial liabilities	19,23		66,623		120,875
Current income tax liabilities			223,666		350,570
Liabilities directly associated with the assets held for sale	10		3,678		—
Provisions	20		494,432		396,030
Other current liabilities	22,28,29		1,574,195		1,173,498

Total current liabilities			23,131,654		22,779,719

Long-term trade accounts and notes payable	23		—		2,049
Long-term borrowings, excluding current installments	4,17,23		16,374,578		14,881,620
Other payables	18,23		1,237,358		809,013
Other long-term financial liabilities	19,23		91,068		72,920
Defined benefit liabilities, net	21		63,189		43,143
Deferred tax liabilities	35		1,159,973		2,685,549
Long-term provisions	20		650,329		580,559
Other non-current liabilities	22		106,598		99,260

Total non-current liabilities			19,683,093		19,174,113

Total liabilities			42,814,747		41,953,832

Equity
Share capital	24		482,403		482,403
Capital surplus	24		1,685,116		1,648,894
Other equity items	26		1,561,510		1,155,429
Treasury shares	27		(1,176,317	)	(1,550,862	)
Retained earnings			53,177,473		53,658,368

Equity attributable to owners of the controlling company			55,730,185		55,394,232
Non-controlling interests	25		6,647,506		6,056,136

Total equity			62,377,691		61,450,368

Total liabilities and equity		~~W~~	105,192,438		103,404,200

The accompanying notes are an integral part of the consolidated financial statements.

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of comprehensive income

for years ended December 31, 2025 and 2024

(in millions of Won, except per share information)	Notes
Revenue	28,29,37	~~W~~	69,094,886		72,688,143
Cost of sales	29,31,34		(63,928,838	)	(67,275,204	)

Gross profit			5,166,048		5,412,939
Selling and administrative expenses	23,30,34
Other administrative expenses			(3,094,810	)	(3,004,478	)
Selling expenses			(244,175	)	(234,888	)

Operating profit			1,827,063		2,173,573
Share of profit of equity-accounted investees, net	11		349,910		(256,458	)
Finance income and costs	23,32
Finance income			3,222,137		5,211,595
Finance costs			(3,910,282	)	(5,080,735	)
Other non-operating income and expenses	23,33,34
Other non-operating income			305,591		387,105
Other non-operating expenses			(687,571	)	(1,183,877	)

Profit before income tax			1,106,848		1,251,203
Income tax expense	35		(602,446	)	(303,623	)

Profit			504,402		947,580
Other comprehensive income (loss)
Items that will not be reclassified subsequently to profit or loss:
Capital adjustment arising from investments in subsidiaries under equity method			(5,240	)	(42,753	)
Foreign currency translation differences			35,619		231,347
Remeasurements of defined benefit plans	21		(13,163	)	(95,345	)
Net changes in fair value of equity investments at fair value through other comprehensive<br>income			319,618		(150,443	)
Items that are or may be reclassified subsequently to profit or loss:
Capital adjustment arising from investments in subsidiaries under equity method			48,561		331,616
Foreign currency translation differences			33,219		888,466
Gains or losses on valuation of derivatives	23		8		(110	)

Other comprehensive income, net of tax			418,622		1,162,778

Total comprehensive income		~~W~~	923,024		2,110,358

Profit attributable to:
Owners of the controlling company		~~W~~	657,654		1,094,917
Non-controlling interests			(153,251	)	(147,337	)

Profit		~~W~~	504,403		947,580

Total comprehensive income attributable to:
Owners of the controlling company		~~W~~	1,032,628		2,008,919
Non-controlling interests			(109,602	)	101,439

Total comprehensive income		~~W~~	923,026		2,110,358

Earnings per share (in Won)	36
Basic earnings per share (in Won)			8,697		14,451
Diluted earnings per share (in Won)		~~W~~	8,697		12,250

The accompanying notes are an integral part of the consolidated financial statements. ****

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of changes in equity

for years ended December 31, 2025 and 2024

(in millions of Won)		Attributable to owners of the controlling company
		Sharecapital		Capitalsurplus			Otherequityitems			Treasuryshares			Retainedearnings			Subtotal
Balance as of January 1, 2024	~~W~~		482,403		1,663,334			67,256			(1,889,658	)		53,857,514			54,180,849		5,483,048		59,663,897
Comprehensive income:
Profit			—		—			—			—			1,094,917			1,094,917		(147,337	)	947,580
Other comprehensive income (loss)
Remeasurements of defined benefit plans, net of tax			—		—			—			—			(86,966	)		(86,966	)	(8,379	)	(95,345	)
Capital adjustment arising from investments in equity-accounted investees, net of tax			—		—			257,833			—			—			257,833		31,030		288,863
Net changes in fair value of equity investments at fair value through other comprehensive income,<br>net of tax			—		—			(133,213	)		—			(11,838	)		(145,051	)	(5,392	)	(150,443	)
Foreign currency translation differences, net of tax			—		—			888,466			—			—			888,466		231,347		1,119,813
Gains or losses on valuation of derivatives, net of tax			—		—			(281	)		—			—			(281	)	171		(110	)

Total comprehensive income			—		—			1,012,805			—			996,113			2,008,918		101,440		2,110,358

Transactions with owners of the controlling company, recognized directly in equity:
Year-end dividends			—		—			—			—			(189,690	)		(189,690	)	(86,002	)	(275,692	)
Interim dividends			—		—			—			—			(568,433	)		(568,433	)	—		(568,433	)
Changes in subsidiaries			—		—			—			—			—			—		32,691		32,691
Changes in ownership interest in subsidiaries			—		(15,440	)		—			—			—			(15,440	)	477,608		462,168
Acquisition of treasury shares			—		—			—			(92,311	)		—			(92,311	)	—		(92,311	)
Retirement of treasury shares			—		—			—			431,107			(431,107	)		—		—		—
Share based payment			—		(2,567	)		—			—			—			(2,567	)	—		(2,567	)
Others			—		3,567			75,368			—			(6,029	)		72,906		47,351		120,257

Total transactions with owners of the controlling company			—		(14,440	)		75,368			338,796			(1,195,259	)		(795,535	)	471,648		(323,887	)

Balance as of Decemmber 31, 2024	~~W~~		482,403		1,648,894			1,155,429			(1,550,862	)		53,658,368			55,394,232		6,056,136		61,450,368

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of changes in equity, continued

for year ended December 31, 2025 and 2024

(in millions of Won)		Attributable to owners of the controlling company
		Sharecapital		Capitalsurplus		Otherequityitems		Treasuryshares			Retainedearnings			Subtotal
Balance as of January 1, 2025	~~W~~		482,403		1,648,894		1,155,429		(1,550,862	)		53,658,368			55,394,232		6,056,136		61,450,368
Comprehensive income:
Profit			—		—		—		—			657,654			657,654		(153,251	)	504,403
Other comprehensive income (loss)
Remeasurements of defined benefit plans, net of tax			—		—		—		—			(26,081	)		(26,081	)	12,918		(13,163	)
Capital adjustment arising from investments in equity-accounted investees, net of tax			—		—		49,173		—			—			49,173		(5,852	)	43,321
Net changes in fair value of equity investments at fair value through other comprehensive income,<br>net of tax			—		—		321,131		—			(2,477	)		318,654		964		319,618
Foreign currency translation differences, net of tax			—		—		33,219		—			—			33,219		35,619		68,838
Gains or losses on valuation of derivatives, net of tax			—		—		8		—			—			8		—		8

Total comprehensive income			—		—		403,531		—			629,096			1,032,627		(109,602	)	923,025

Transactions with owners of the controlling company, recognized directly in equity:
Year-end dividends			—		—		—		—			(189,051	)		(189,051	)	(159,410	)	(348,461	)
Interim dividends			—		—		—		—			(567,156	)		(567,156	)	—		(567,156	)
Changes in subsidiaries			—		—		—		—			—			—		174,300		174,300
Changes in ownership interest in subsidiaries			—		35,622		—		—			—			35,622		737,181		772,803
Acquisition of treasury shares			—		—		—		—			—			—		—		—
Retirement of treasury shares			—		—		—		374,545			(374,545	)		—		—		—
Share based payment			—		—		—		—			—			—		—		—
Others			—		600		2,549		—			20,763			23,912		(51,099	)	(27,187	)

Total transactions with owners of the controlling company			—		36,222		2,549		374,545			(1,109,989	)		(696,673	)	700,972		4,299

Balance as of December 31, 2025	~~W~~		482,403		1,685,116		1,561,509		(1,176,317	)		53,177,475			55,730,186		6,647,506		62,377,691

The accompanying notes are an integral part of the consolidated financial statements,

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of cash flow

for years ended December 31, 2025 and 2024

(in millions of Won)	Notes
Cash flows from operating activities
Profit		~~W~~	504,403		947,580
Adjustments for:
Depreciation			3,720,360		3,530,770
Amortization			465,935		453,689
Finance income			(1,645,865	)	(3,476,227	)
Finance costs			2,098,373		3,202,268
Income tax expense			602,446		303,623
Impairment loss on property, plant and equipment			135,653		608,122
Gain on disposal of property, plant and equipment			(15,792	)	(26,533	)
Loss on disposal of property, plant and equipment			89,883		85,149
Impairment loss on goodwill and other intangible assets			51,640		47,993
Gain on disposal of goodwill and other intangible assets			(2,036	)	—
Loss on disposal of goodwill and other intangible assets			512		—
Gain on disposal of investments in subsidiaries, associates and joint ventures			(47,374	)	(14,235	)
Loss on disposal of investments in subsidiaries, associates and joint ventures			12,819		73,428
Share of profit of equity-accounted investees			(349,910	)	256,458
Gain on disposal of assets held for sale			(53,692	)	(4,801	)
Loss on disposal of assets held for sale			—		33,943
Impairment loss on disposal of assets held for sale			6,342		—
Expenses related to post-employment benefit			264,231		246,484
Impairment loss on trade and other receivables			203,802		185,129
Loss on valuation of inventories			(25,607	)	77,832
Increase to provisions			486,449		217,174
Gain on insurance claim			(19,596	)	(157,552	)
Others, net			2,036		3,227

			5,980,609		5,645,941

Changes in operating assets and liabilities	39		(869,632	)	336,868
Interest received			451,361		570,769
Interest paid			(1,085,791	)	(1,028,654	)
Dividends received			437,835		744,857
Income taxes paid			(848,453	)	(553,706	)

Net cash provided by operating activities		~~W~~	4,570,332		6,663,655

POSCO HOLDINGS INC. and its subsidiaries

Consolidated statements of cash flow, continued

foryears ended December 31, 2025 and 2024

(in millions of Won)
Cash flows from investing activities
Acquisitions of short-term financial instruments		~~W~~	(15,987,580	)	(15,835,323	)
Proceeds from disposal of short-term financial instruments			16,093,407		19,501,852
Increase in loans			(277,442	)	(820,248	)
Collection of loans			175,948		784,616
Acquisitions of securities			(836,079	)	(1,144,352	)
Proceeds from disposal of securities			489,046		1,210,011
Acquisitions of long-term financial instruments			(19,921	)	(3,791	)
Acquisitions of investment in associates and joint ventures			(282,828	)	(301,816	)
Proceeds from disposal of investment in associates and joint ventures			108,718		45,185
Acquisitions of investment property			(3,614	)	(3,883	)
Proceeds from disposals of investment property			1,403		418
Acquisitions of property, plant and equipment			(5,650,846	)	(7,669,700	)
Proceeds from disposal of property, plant and equipment			210,259		44,189
Acquisitions of intangible assets			(569,095	)	(492,785	)
Proceeds from disposal of intangible assets			7,910		11,711
Proceeds from disposal of assets held for sale			682,496		10,307
Collection of lease receivables			25,671		31,136
Disposal of net assets due to changes in consolidated entities			(645,661	)	—
Cash inflow from insurance claim			19,596		157,278
Others, net			(214,334	)	(11,588	)

Net cash used in investing activities			(6,672,946	)	(4,486,783	)

Cash flows from financing activities
Proceeds from borrowings			5,393,340		5,899,541
Repayment of borrowings			(5,158,334	)	(7,532,911	)
Proceeds from (repayment of) short-term borrowings, net			2,158,541		(217,759	)
Capital contribution from non-controlling<br>interests			832,430		513,710
Payment of cash dividends			(915,216	)	(844,195	)
Acquisition of treasury shares			—		(92,311	)
Repayment of lease liabilities			(143,423	)	(195,367	)
Others, net			230,042		167,559

Net cash used in financing activities	39		2,397,380		(2,301,733	)

Effect of exchange rate fluctuation on cash held			(5,578	)	221,880

Net increase(decrease) in cash and cash equivalents			289,188		97,019
cash classified as held for sale			(7,286	)	—
Cash and cash equivalents at beginning of the period	5,10		6,767,898		6,670,879

Cash and cash equivalents at end of the period	5,10	~~W~~	7,049,800		6,767,898

The accompanying notes are an integral part of the consolidated financial statements,

Appendix 2

POSCO HOLDINGS INC.

(Formerly, POSCO)

Separate Financial Statements

December 31, 2025 and2024

(With Independent Auditors’ Report Thereon)

Table of Contents

		Page
Independent Auditors’ Report			TBD
Separate Financial Statements
Separate Statements of Financial Position			3
Separate Statements of Comprehensive Income			5
Separate Statements of Changes in Equity			6
Separate Statements of Cash Flows			7
Notes to the Separate Financial Statements			TBD
Independent Auditors’ Report on Internal Control over Financial Reporting			TBD
Report on the Operating Status of Internal Control over Financial Reporting			TBD

POSCO HOLDINGS INC.

S eparate s tatements of f inancial p osition

a s of December 3 1 , 202 5 and 2024

(in millions of Won)	Notes
Assets
Cash and cash equivalents	4, 5, 21, 35	~~W~~	184,416	409,387
Trade accounts and notes receivable, net	6, 21, 33, 35		157,668	178,822
Other receivables, net	7, 21, 33, 35		146,146	21,388
Other short-term financial assets	8, 21, 35		3,454,794	2,686,420
Assets held for sale	9		—	467,796
Current income tax assets	31		—	27,940
Other current assets	14		2,099	1,716

Total current assets			3,945,123	3,793,469

Other receivables, net	7, 21, 33		17,414	14,894
Other long-term financial assets	8, 21		506,736	421,822
Investments in subsidiaries, associates and joint ventures	10		46,290,252	45,631,965
Investment property, net	11		319,392	328,372
Property, plant and equipment, net	12, 35		703,140	415,993
Intangible assets, net	13, 35		29,659	21,461
Other non-current assets	14		3,869	5,821

Total non-current assets			47,870,462	46,840,328

Total assets		~~W~~	51,815,585	50,633,797

POSCO HOLDINGS INC.

Separate statements of financial position, continued

as of December 31, 2025 and 2024

(in millions of Won)	Notes
Liabilities
Short-term borrowings and current installments of long-term borrowings	4, 15, 21, 35	~~W~~	45,973		39,053
Other current payables	16, 33, 35		53,466		50,356
Other short-term financial liabilities	17, 21		21,545		18,302
Provisions	18		46,421		46,268
Current income tax liabilities			72,405		—
Other current liabilities	20		5,818		8,852

Total current liabilities			245,628		162,831

Long-term borrowings, excluding current installments	4, 15		993,857		1,500
Other non-current payables	16, 21, 33, 35		35,037		30,783
Defined benefit liabilities, net	19		5,533		1,296
Deferred tax liabilities	31		2,592,964		2,246,030
Long-term provisions	18		2,947		—
Other non-current liabilities	20		1,351		2,327

Total non-current liabilities			3,631,689		2,281,936

Total liabilities			3,877,317		2,444,767

Equity
Share capital	22		482,403		482,403
Capital surplus	22		1,367,990		1,367,990
Accumulated other comprehensive income (loss)	23		(45,874	)	(62,645	)
Treasury shares	24		(1,176,317	)	(1,550,862	)
Retained earnings	25		47,310,066		47,952,144

Total equity			47,938,268		48,189,030

Total liabilities and equity		~~W~~	51,815,585		50,633,797

The accompanying notes are an integral part of the separate financial statements.

POSCO HOLDINGS INC.

Separate statements of comprehensive income

for the years ended December 31, 2025 and 2024

(in millions of Won, except per share informations)
Operating revenue	26, 33	~~W~~	1,403,309		1,997,128
Operating expenses	27		(426,484	)	(400,707	)

Operating profit			976,825		1,596,421

Finance income and costs
Finance income	21, 28		233,286		482,945
Finance costs	21, 28		(99,533	)	(89,388	)
Other non-operating income and expenses
Other non-operating income	29		3,274		3,249
Other non-operating expenses	29		(320,959	)	(437,151	)

Profit before income tax			792,893		1,556,076
Income tax benefit	31		(298,015	)	65,206

Profit			494,878		1,621,282
Other comprehensive income (loss)
Items that will not be reclassified subsequently to profit or loss:
Remeasurements of defined benefit plans	19		(2,528	)	(3,948	)
Net changes in fair value of equity investments at fair value through other comprehensive<br>income	8,23		13,096		(75,167	)

Total comprehensive income		~~W~~	505,446		1,542,167

Earnings per share (in Won)	32
Basic earnings per share (in Won)			6,544		21,398
Diluted earnings per share (in Won)		~~W~~	6,544		18,999

The accompanying notes are an integral part of the separate financial statements.

POSCO HOLDINGS INC.

Separate statements of changes in equity

for years ended December 31, 2025 and 2024

(in millions of Won)
Balance as of January 1, 2024	~~W~~	482,403	1,370,557		30,678		(1,889,658	)	47,505,885		47,499,865
Comprehensive income:
Profit		—	—		—		—		1,621,282		1,621,282
Other comprehensive income (loss)
Remeasurements of defined benefit plans, net of tax		—	—		—		—		(3,948	)	(3,948	)
Net changes in fair value of equity investments at fair value through other comprehensive income,<br>net of tax		—	—		(93,323	)	—		18,156		(75,167	)
Transactions with owners of the Company, recognized directly in equity:
Year-end dividends		—	—		—		—		(189,691	)	(189,691	)
Interim dividends		—	—		—		—		(568,433	)	(568,433	)
Acquisition of treasury shares		—	—		—		(92,311	)	—		(92,311	)
Retirement of treasury shares							431,107		(431,107	)
Share-based payment		—	(2,567	)	—		—		—		(2,567	)

Balance as of December 31, 2024	~~W~~	482,403	1,367,990		(62,645	)	(1,550,862	)	47,952,144		48,189,030

Balance as of January 1, 2025	~~W~~	482,403	1,367,990		(62,645	)	(1,550,862	)	47,952,144		48,189,030
Comprehensive income:
Profit		—	—		—		—		494,878		494,878
Other comprehensive income (loss)
Remeasurements of defined benefit plans, net of tax		—	—		—		—		(2,528	)	(2,528	)
Net changes in fair value of equity investments at fair value through other comprehensive income,<br>net of tax		—	—		16,771		—		(3,675	)	13,096
Transactions with owners of the Company, recognized directly in equity:
Year-end dividends		—	—		—		—		(189,052	)	(189,052	)
Interim dividends		—	—		—		—		(567,156	)	(567,156	)
Retirement of treasury shares		—	—		—		374,545		(374,545	)	—

Balance as of December 31, 2025	~~W~~	482,403	1,367,990		(45,874	)	(1,176,317	)	47,310,066		47,938,268

The accompanying notes are an integral part of the separate financial statements.

POSCO HOLDINGS INC.

Separate statements of cash flows

for years ended December 31, 2025 and 2024

(in millions of Won)
Cash flows from operating activities
Profit		~~W~~	494,878		1,621,282
Adjustments for :
Expenses related to post-employment benefit			10,179		6,438
Depreciation			18,087		14,272
Amortization			2,342		1,712
Impairment loss on trade and other receivables			(82	)	106
Finance income			(205,749	)	(474,656	)
Dividend income			(1,234,259	)	(1,812,999	)
Finance costs			70,915		79,200
Loss on disposal of property, plant and equipment			1,282		341
Gain on disposal of intangible assets			—		(141	)
Loss on disposal of intangible assets			22		266
Impairment loss on investments in subsidiaries, associates and joint ventures			288,464		392,075
Loss on disposal of assets held for sale			9,883		—
Increase (decrease) to provisions			341		36,981
Income tax benefit			298,015		(65,206	)
Others			2,220		(3	)
Changes in operating assets and liabilities	35		8,368		2,023
Interest received			67,154		92,618
Interest paid			(27,137	)	—
Dividends received			1,230,173		1,866,004
Income taxes received	`		60,808		57,563

Net cash provided by operating activities		~~W~~	1,095,904		1,817,876

POSCO HOLDINGS INC.

Separate statements of cash flows, continued

for yearsended December 31, 2025 and 2024

(in millions of Won)
Cash flows from investing activities
Decrease in deposits		~~W~~	3,330,000		3,050,000
Proceeds from disposal of short-term financial instruments			894,933		5,471,006
Proceeds from disposal of equity securities			1,082		194,230
Proceeds from disposal of other securities			11,053		9,016
Proceeds from disposal of investments in subsidiaries, associates and joint ventures			62,847		590,429
Proceeds from disposal of intangible asstes			—		1,677
Disposal of assets held for sale			458,831
Collection of short-term lease security deposits			17		491
Increase in deposits			(4,190,000	)	(2,550,000	)
Acquisition of short-term financial instruments			(560,426	)	(4,619,699	)
Increase in long-term loans			—		(106	)
Acquisition of other securities			(15,870	)	(21,850	)
Acquisition of investment in subsidiaries, associates and joint ventures			(1,011,924	)	(1,263,572	)
Acquisition of property, plant and equipment			(294,631	)	(249,048	)
Acquisition of intangible asstes			(10,563	)	(6,209	)
Acquisition of investment properties			—		(1,200	)
Payment of short-term & long-term deposits			(741	)	(536	)
Acquisition of short-term debt securities			(230,000	)	—
Net cash provided by (used in) investing activities		~~W~~	(1,555,392	)	604,629

Cash flows from financing activities
Increase in long-term financial liabilities			3,278		3,148
Issuance of bonds			987,117
Payment of cash dividends			(756,084	)	(758,194	)
Repayment of current installments of long-term borrowings			—		(1,542,400	)
Acquisition of treasury shares			—		(92,311	)

Net cash used in financing activities	35	~~W~~	234,311		(2,389,757	)

Effect of exchange rate fluctuation on cash held			205		(275	)
Net increase (decrease) in cash and cash equivalents			(224,971	)	32,473
Cash and cash equivalents at beginning of the period	5		409,387		376,914

Cash and cash equivalents at end of the period	5	~~W~~	184,416		409,387

The accompanying notes are an integral part of the separate financial statements.

EX-99.1

Exhibit 99.1

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The 58th Ordinary General Meeting of Shareholders —Reference Material -

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Contents 1. GSM Overview 02 2.Agenda Description (1) – Financial Statements 04 3.Agenda Description (2) – Partial amendment of the AoI10 4.Agenda Description (3~6) – Director Appointment18 5.Agenda Description (7) – Director Compensation Limit27 DISCLAIMER This presentation has been compiled by POSCO HOLDINGS with the objective to share information; hence information offered should be referenced exclusively to make assessment on investment. Unless otherwise indicated, the financial information herein presents K-IFRS-based consolidated financial performance. The presentation may contain forward-looking statements, such as projections, estimates, expectations, plans and targets regarding market conditions, financials and business environment, as well as the Company’s business plans and strategies. The statements are based on assumptions and judgement made as of the date on which this document was compiled. Actual outcome may differ materially from those contained in this presentation, resulting from various factors, e.g., changes in external environment, revision to management strategies. Such forward-looking information is subject to change without prior notice. The Company does not guarantee the accuracy and/or the completeness of the information herein, nor does it make any guarantee or warranty, express or implied. The Company shall not be held liable for any loss arising from the use of this material, which cannot be used as evidence to seek legal responsibility. This material, in part or in whole, may not be reproduced, distributed, cited or transmitted in any form without the prior written consent of the Company.

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General Shareholder Meeting (GSM) Overview GSM Convocation Notice & Agenda Items List

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Convocation Notice of General Shareholders Meeting (GSM) With wishes for your success and the well-being of your family, notice is hereby given that in compliance with Article 20 of the Articles of Incorporation, the 58th General Shareholders’ Meeting of POSCO HOLDINGS will convene as follows. Date : 09:00 (KST), Thursday, March 24, 2026 Place : Art Hall, 4F West Wing, POSCO Center, 440 Teheran-ro, Gangnam-gu, Seoul, Korea Agenda Items Agenda Description Item 1Approval of Financial Statements for the 58th FY Item 2 Partial Amendments of the Articles of Incorporation 2-1Title Change to Independent Director 2-2Increase Audit Committee Members to be Separately Appointed 2-3Expand Voting Restrictions per the Appointment/Dismissal of Audit Committee Members 2-4Introduce Electronic GSM 2-5Delete Provision Regarding Separate Cumulative Voting Item 3Appointment of Inside Director Item 4Appointment of Non-Standing Director Item 5Appointment of Outside Director Item 6 Appointment of Outside Director to Serve on the Audit Committee Item 7 Approval of Director Remuneration Limit 03

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Agenda Description (1) – Financial Statements Agenda Item 1 : Approval of the 58th Financial Statements

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Agenda Item 1 : Approval of the 58th Financial Statements In accordance with Article 449 of the Commercial Act, the Company hereby presents the 58th financial statements, prepared in compliance with applicable accounting standards, to our shareholders and stakeholders, and respectfully seek your approval. 3-year Operating Performance & Financials (consolidated) (KRW 100 mil.) 58th FY (Jan. 1 ~ Dec. 31, 2025) 57th FY (Jan. 1 ~ Dec. 31, 2024) 56th FY (Jan. 1 ~ Dec. 31, 2023) YoY Revenue690,949 35,932 726,881771,272 Gross Margin51,661 2,469 54,12964,169 Operating Profit18,271 3,465 21,73635,314 Profit Margin (%)2.6 0.4p 3.04.6 Current Net Income5,044 4,432 9,47618,458 58th FY (Dec. 31, 2025) 57th FY (Dec. 31, 2024) 56th FY (Dec. 31, 2023) YoY Asset1,051,924 +17,882 1,034,042 1,009,454 Current Asset434,839 5,460 440,299 462,123 (cash on hand)(155,925) +7,904 (148,021) (179,072) Non-current Asset617,085 +23,342 593,743 547,331 Debt428,147 +8,609 419,538 412,815 (loans)(284,920) +24,946 (259,974) (259,704) Equity623,777 +9,273 614,504 596,639 Debt Ratio(%)68.6+0.3p68.369.2 05

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FY2025 Financial Highlights Despite the 2025 recovery of steel business profits, YoY OP fell by KRW 0.4 tril., due to declines in RBM1) and Construction businesses. —(Steel) Despite sales volume fall due to tighter U.S. and Europe export regulations and low domestic demand, profitability defended on improved mill margins through lower raw material input costs —(Rechargeable Battery Mtrl.) P-Future M performance fell due to termination of EV subsidies (Sept. ‘25) in U.S. and price undercutting of Chinese anodes; profitability also suffered owed to fixed ramp-up costs incurred in new production facilities. —(Infra) P-E&C incurred additional costs due to work stoppage resulting from the Shinansan Line incident; the non-recurring costs led to significant operating loss. KRW 7 tril. CAPEX administered to reinforce its core competitiveness in steel and to secure RBM market leadership. —(Steel) Storage yards at both works enclosed to be eco-friendly; new EAF3) installed and underforming 3Finex made efficient to be cost-competitive. —(Rechargeable Battery Mtrl.) P-Argentina Lithium Phase 2 (25Ktpa) investment; CAM4) JV Phase 2 (30Kt) expansion in Canada; nickel dry smelting investment in Tsingshan JV (26Kt) in Indonesia —(Infra) Palm farm acquired (Indonesia); volume expansion at Senex (Australia) and across gas fields (Myanmar); LNG terminals added (Korea) Low-performing projects and non-essential assets restructured to enhance asset efficiency - Assets optimized by divesting non-essential and underperforming assets; future growth engine-centered business portfolio realignment picks up speed (73 projects completed between ’24~’25, generating KRW 1.8 tril.) Income 1)RBM: Rechargeable Battery Materials 2) EAF: Electric Arc Furnace 3)CAM: Cathode Active Materials Income (KRW trillion) Revenue OP OP Margin 84.7 76.3 77.1 72.7 12.1% 69.1 9.2 5.7% 4.6% 4.9 3.0% 3.5 2.6% 2.2 1.8 ‘21 ‘22 ‘23 ‘24 ‘25 Financials Net Debt EBITDA Net Debt Ratio (KRW trillion) 20.7% 18.2% 13.5% 9.6% 6.5% 12.9 12.8 11.2 8.5 8.1 7.4 5.6 6.2 6.0 3.6 ‘21 ‘22 ‘23 ‘24 ‘25

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FY2025 Shareholder Returns Funded by 50-60% of the separate annual FCF, basic dividend (KRW 10K/share) is paid; any remaining fund is used to administer additional returns. —Define shareholder return policy standards based on FCF that reflects investment needs in future growth projects,, and ensure unhindered implementation of the growth strategies. —‘Basic Dividend’ policy addresses the shareholder return variability risk that often results from FCF uncertainty. Pursuant to the 2025 Shareholder Return Policy, a resolution was approved to make cash payout of KRW 10,000/share (consolidated dividend ratio:115%). —To make quarterly payout of KRW 2,500/share for each of the first 3 quarters, and to make an additional year-end payout of KRW 2,500/share. (fund total: KRW 756.2 billion) A policy is in practice to ensure that any buyback of treasury stocks made with the goal to enhance shareholder value shall be cancelled, with the exception of funding employee benefits. —In July 2024, proceeds totaling KRW 100 billion generated from selling non-essential assets funded the repurchase treasury shares that were immediately cancelled. Based on the plan to cancel 6% of our treasury shares in phases between ’24 to ’26, 4% has been completed; another 2% will be cancelled in ‘26. 1) Treasury share cancellation is based on market value 2) 2026 payout can change based on the new Interim Return Policy (‘26-’28) No Spacing;Shareholder Returns 1.6 1.3 0.7 Repurchase & Cancel Shares cancellation 0.9 0 Dividends 0.6 0.6 ‘20 ‘21 ‘22 (KRW trillion) 1.4 0.6+ Cancellation of 0.1 2) existing 0.7 1.2 0.6 treasury shares 0.4 (2%/year) 0.8 0.8 0.8 0.8 Basic Dividends (KRW 0.8 tril./year) ‘23 ‘24 ‘25 ‘26 1) Treasury share cancellation is based on market value 2) 2026 payout can change based on the new Interim Return Policy (‘26-’28) 07

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FY2025 ESG Management Update HyREX demonstration project is in full swing, while GY* EAF construction speeds up to be operational in ’26. *GY:Gwangyang —300Kt-capacity HyREX demo plant has begun construction to be operational in ‘28 and at commercial scale by 2030. —To address the national energy policy, customer demands and CBAM, GY EAF to be operational in ’26. * HyREX demo project clears MOTIE’s pre-FS (Jun. ‘25), acquiring KRW 308.8 bil. in project funding * ‘EAF-BF Hybrid Mixing Technology’ chosen by MOFE as new growth/source technology (Jan. ’26) By defining and practicing globally aligned group-wide human rights (Hr) management standards, Hr risks are proactively addressed and improved. —Human Rights Declaration enacted across the group; CEOs of key affiliates jointly sign to proclaim commitment (Feb. ’25), P-HOLDINGS presides over the ‘Group Human Rights Management Council’ arranged half-yearly. —Hr Impact Assessment regularized for 7 domestic businesses (from Mar. ’25); a One-stop Grievance Mechanism set up to operate across the group (from Sept. ’25) —Impact Assessment scope expanded 7 local sites 9 local sites and oversease locations (from Jan. ’26) ESG issues are discussed at C-level management meetings and with the Board; key achievements are linked to performance evaluation of the affiliates, thereby shoring up the importance of ESG management. —Board-level ESG Session arranged (yearly); CEO hosts ‘Group ESG Council’; affiliates brief the Board quarterly on carbon & safety plan & outcome. —ESG is an essential KPI in affiliates’ management evaluation; core ESG indices, e.g., decarbonization, safety, directly tied to management comp. Owing to these efforts, POSCO HOLDINGS is recognized as a global ESG leader by local and international rating agencies. [POSCO HOLDINGS ESG Ratings] 08

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FY2025 Safety Management System Update In 2025, CEOs of POSCO’s group of companies sponsored rigorous safety inspections to foster a ‘Safety First’ culture. —CEO-sponsored group-wide Safety Assessment Meeting and unscheduled construction site inspections have conveyed a strong message of their commitment to a culture of ‘zero tolerance safety’ (Aug.-Oct. ’25) —Each affiliate mobilized individual and self-directed Emergency Safety Operation Modes, triggering ‘Temporary Work Stoppage’ and/or In August ’25, ‘Group Safety Innovation TF’ was established to report to the CEO. By assessing safety management at key operation sites, a comprehensive disaster prevention measure was compiled across the group. —The Group Safety TF pooled opinons from external consultants (academic, professional) and identified ‘Comprehensive Disaster Prevention Measures (CDPM)’ and 40 corrective action items (Oct. ’25) * Composition of CDPM: 1 Labor view: expand participation; 2 Company-led: improve systems; 3 Together: enhance on-site operability The assessment of safety practices at POSCO group performed by globally-recognized safety consulting firms helped to promote a stronger culture of safety across key affiliates. —Safety management collaboration MOUs were signed with dss+ and SGS, global top-tier safety firms who will offer safety consulting services (Sep.-Dec. ’25) —Launched POSCO Safety Solution (Sep. ’25), a company that specializes in safety, to bring professional safety knowhow inhouse, perform regular safety assessments, and to prescribe enhancement roadmaps customized to each operating company. * dss+ : previously Dupont’s Safety consulting firm, SGS(Société Générale de Surveillance): world’s largest inspection, validation and testing service provider A safety management system has been designed by reinforcing the organizational safety skills, linking safety to compensation, and by affecting structural change in subcontracting practices. —Safety teams have been upgraded to C-level (CSO, Division) organizations at key affiliates, and safety is a priority KPI for all executive-level performance evaluations. —To eradicate illegal subcontracting, the head of POSCO’s Purchasing Division leads a council to fix contract terms and to abolish the ‘lowest bidder wins’ practice. No Spacing;LTIFR ((No. of lost time injuries) x 1 mil./total hours worked) POSCO HOLDINGS and affiliates2) 0.79 0.74 0.68 0.54 ‘22 ‘23 ‘24 ‘25 1) Lost Time Injury Frequency Rate 2) No. of companies: 24 domestic, 41 overseas (incl. relevant contractors) Serious accidents (No. of deaths) POSCO HOLDINGS and affiliates 14 9 9 6) 5 4 2 1 ‘20 ‘21 ‘22 ‘23 ‘24 ‘25 Accident rate (%, No. of accident victims3)/No. of workers covered by Workers’ Comp× 100) Korean companies 4) POSCO HOLDINGS and affiliates 0.65 0.66 0.67 0.09 0.1 0.14 0.15 ‘22 ‘23 ‘24 ‘25 3) No. of workers removed from work for 1 day or more 4) (Source) Ministry of Employment and Labor 09

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Agenda Description (2) – Partial Amendment of the Articles of Incorporation (AOI) Agenda item 2: Partial Amendments of the AOI Item 2-1 Title Change to Independent Director Item 2-2 Increase Audit Committee Members to be Separately Appointed Item 2-3 Expand Voting Restrictions per the Appointment/Dismissal of Audit Committee Members Item 2-4 Introduce Electronic GSM Item 2-5 Delete Provision Regarding Separate Cumulative Voting

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Item 2-1: Title Change to Independent Director In the 2025 amended Commercial Act, with the goal to strengthen the independence of the Board of Directors of listed companies, the Act has revised the existing ‘Outside Director’ system into an ‘Independent Director’ framework. Given this transition, outside directors appointed under the former Commercial Act shall be deemed independent directors under the amended Act. To ensure consistency between statutory terminology and the Company’s AOI and to prevent confusion among shareholders and stakeholders, we resolve to amend the title of ‘Outside Director’ to ‘Independent Director’ in our AOI and to revise all relevant provisions. Before Amendment Article 27. Number of the Directors The total number of Directors of the Company shall be at least three (3) but no more than thirteen (13) Directors, among which the Outside Directors shall be eight (8) persons or less and Inside Directors shall be five (5) persons or less. The Outside Directors shall constitute the majority of the total number of the Directors. Article 30. Recommendation of Candidate for Outside Directors (1) A candidate for Outside Director shall be recommended by the Director Candidate Recommendation Committee as prescribed in Paragraph (1) of Article 45. Such candidates shall be among those qualified persons as prescribed in Article 31. (2) A shareholder holding voting shares of the Company may recommend a candidate for Outside Director to the Director Candidate Recommendation Committee by the exercise of the shareholder proposal right under the applicable legislation. (3) The Director Candidate Recommendation Committee shall determine the details regarding recommendation for, and evaluation on qualification of, candidates for Outside Director. Article 31. Qualification for Candidate for Outside Directors An Outside Director must have sufficient and professional knowledge or experience in the areas of industry, finance, education, law, accounting and public administration and also must be qualified under the relevant laws. After Amendment Article 27 (Number of the Directors) The total number of Directors of the Company shall be at least three (3) but no more than thirteen (13) Directors, among which the Independent Directors shall be eight (8) persons or less and Inside Directors shall be five (5) persons or less. The Independent Directors shall constitute the majority of the total number of the Directors. Article 30 (Recommendation of Candidate for Independent Directors) (1) A candidate for Independent Director shall be recommended by the Director Candidate Recommendation Committee as prescribed in Paragraph (1) of Article 45. Such candidates shall be among those qualified per sons as prescribed in Article 31. (2) A shareholder holding voting shares of the Company may recommend a candidate for Independent Director to the Director Candidate Recommendation Committee by the exercise of the shareholder proposal right under the applicable legislation. (3) The Director Candidate Recommendation Committee shall determine the details regarding recommendation for, and evaluation on qualification of, candidates for Independent Director. Article 31 (Qualification for Candidate for Independent Directors) An Independent Director must have sufficient and professional knowledge or experience in the areas of industry, finance, education , law, accounting or public administration and also must be qualified under the relevant laws. Title change aligned to Commercial Act amendment 11

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Item 2-1: Title Change to Independent Director Before Amendment Article 35. By-Election (2) In the event that the number of Outside Directors is less than a majority of total number of Directors due to death or resignation of Outside Directors or for any other reason, Outside Directors shall be elected to fill the vacancy at the General Meeting of Shareholders to be held first after such cause so as for the number of Outside Directors to constitute a majority of total number of Directors. Article 36. Remuneration of Directors (3) The Company may pay to Outside Directors for expenses incurred during performance of services as required of Outside Directors. Article 40. Chairman of the Board of Directors (1) The Chairman of the Board shall be appointed by the resolution of the Board of Directors among Outside Directors. (3) In the event that the Chairman of the Board cannot preside at a Meeting of the Board of Directors, Outside Director in order of seniority (if the seniority is the same, the oldest has the priority) shall take his place as Chairman of the Board. Article 48. Constitution and Appointment of Members of Audit Committee (1) The Audit Committee of the Company shall consist of three (3) or more Directors. All of the members shall be elected from among the Outside Directors. After Amendment Article 35 (By-Election) (2) In the event that the number of Independent Directors is le ss than a majority of total number of Directors due to death or r esignation of Independent Directors or for any other reason, I ndependent Directors shall be elected to fill the vacancy at the General Meeting of Shareholders to be held first after such cause so as for the number of Independent Directors to constitute a majority of total number of Directors. Article 36 (Remuneration of Directors) (3) The Company may pay to Independent Directors for expenses incurred during performance of services as required of Independent Di rectors. Article 40 (Chairman of the Board of Directors) (1) The Chairman of the Board shall be appointed by the resolution of the Board of Directors among Independent Directors. (3) In the event that the Chairman of the Board cannot preside at a Meeting of the Board of Directors, an Independent Director in order of seniority (if the seniority is the same, the oldest has the priority) shall take his place as Chairman of the Board. Article 48 (Constitution and Appointment of Members of Audit Committee) (1) The Audit Committee of the Company shall consist of three (3) or more Directors, all of whom shall be Independent Directors. Title revision based on Commercial Act amendment 12

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Item 2-1: Title Change to Independent Director Before Amendment New Addenda After Amendment ADDENDA (March 24, 2026) Article 3 (Transitional Measures for Voting Restrictions for Election and Dismissal of Independent Directors and Audit Committee Members) The amended provisions of Articles 27, 30, 31, 35, 36, 40, and 48 shall come into force on July 23, 2026; provided, however, that the amended provision of the second sentence of Article 48, Paragraph (1) shall be effective from the date on which it is approved by the resolution at the Ordinary General Meeting of Shareholders for the 58th fiscal year. Reason Enforcement Date Addenda 13

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Item 2-2: Increase Audit Committee Members to be Separately Appointed Currently, the Board’s Audit Committee is comprised of 3 outside directors. Pursuant to the existing Commercial Act (Article 542-12), at least 1 member of the Audit Committee is to be selected in a separate election from that of other directors and by a resolution of the General Meeting of Shareholders. The 2025 Commercial Act amendment (effective Sept. 10, 2026) expands the number of Audit Committee members mandated to large listed companies to be appointed in a separate election process from one to two. To be compliant with the revised Act, the Company resolves to increase the number of Audit Committee memebers to be appointed in an election separated from that of other directors to two(2) in our Articles of Incorporation (AOI). This amendment of the AOI duly reflects the legislative intent to enhance the independence of the Audit Committee and protect the rights and interest of minority shareholders and ensures unhindered transition to the updated governance scheme. At the upcoming Ordinary General Meeting of Shareholders, we plan to hold a separate election to appoint as members of the Audit Committee Mr. Sung-wook Park (current Audit Committee member, appointed in a separate election in Mar. ‘24, for a 3-year term) and one other director, thereby taking early steps to put into practice the revised Audit Committee governance scheme, as intended by the amended Act. Before Amendment Article 48. Constitution and Appointment of Members of Audit Committee (1) The Audit Committee of the Company shall consist of three (3) or more Directors. All of the members shall be elected from among the Outside Directors. New Addenda After Amendment Article 48 (Constitution and Appointment of Members of Audit Committee) (1) The Audit Committee of the Company shall consist of three (3) or more Directors, all of whom shall be Independent Directors. After Directors are elected at a General Meeting of Shareholders, the Company shall appoint the members of the Audit Committee from among the elected Directors; provided, however, that two (2) members of the Audit Committee shall be elected in a separate electrion from that of other directors, by a resolution of the General Meeting of Shareholders to also serve on the Audit Committee. ADDENDA (March 24, 2026) Article 3 (Transitional Measures for Voting Restrictions for Election and Dismissal of Independent Directors and Audit Committee Members) The amended provisions of Articles 27, 30, 31, 35, 36, 40, and 48 shall come into force on July 23, 2026; provided, however, that the amended provision of the second sentence of Article 48, Paragraph (1) shall be effective from the date on which it is approved by the resolution at the Ordinary General Meeting of Shareholders for the 58th fiscal year. Reason AOI amendment to raise the number of Audit Committee members to be separately appointed Enforcement Date Addenda 14

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Item 2-3: Expand Voting Restrictions per the Appointment/Dismissal of Audit Committee Member The 2025 amended Commercial Act enhances unity of the regulations regarding the appointment and dismissal of Audit Committee members (directors to serve on the Audit Committee) to strengthen their independence and protect minority shareholders. Hence, it restricts the voting rights of any shareholder for his/her shares that exceed 3%. For the largest shareholder, the shares owned by affiliated persons must be aggregated, a rule that applies consistently regardless of whether the candidate is an outside director. Accordingly, the Company resolves to update the ‘3% Rule’ language in its Articles of Incorporation (AOI) to align with the legislative intent and terminology. This revision does not alter the fundamental principle of the 3% Rule but does add clarity to the scope of shares aggregation for the largest shareholder in accordance with the law. (As of now) the National Pension Service (NPS) is the only shareholder that owns more than 3% of the Company’s issued shares. Moreover, because our Audit Committee is composed entirely of outside directors, this AOI revision is likely to have limited impact on the exercise of voting rights at the Company’s general meetings. After Amendment Article 48 (Constitution and Appointment of Members of Audit Committee) (2) A member of the Audit Committee shall be appointed or dismissed at the General Meeting of Shareholders. When appointing or dismissing a member of the Audit Committee, a shareholder holding more than three percent (3%) of the Comp any’s issued and outstanding shares with voting rights (if such shareholder is the largest shareholder, for calculating the number of shares held by the largest shareholder, his/her shares, along with those owned by his/her specially related person(s), and other person(s) specified by the Enforcement Decree of the Korean Commercial Code, shall be added up together) shall not be entitled to exercise his voting rights for that excess portion. ADDENDA (March 24, 2026) Article 3 (Transitional Measures for Voting Restrictions for Election and Dismissal of Independent Directors and Audit Committee Members) The amended provisions of Articles 27, 30, 31, 35, 36, 40, and 48 shall come into force on July 23, 2026; provided, however, that the amended provision of the second sentence of Article 48, Paragraph (1) shall be effective from the date on which it is approved by the resolution at the Ordinary General Meeting of Shareholders for the 58th fiscal year. Reason Explicit language to restrict voting beyond 3% voting shares per the appointment /dismissal of Audit Committee members Enforcement Date Addenda 15

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Item 2-4: Introduce Electronic General Meeting of Shareholders (GSM) The 2025 amended Commercial Act (Articles 542-14 and 542-15) allows listed companies to hold electronic shareholder meetings concurrently with physical meetings at the designated location. For listed companies specified by Presidential Decree based on asset size among other criteria, the concurrent arrangement of electronic meetings becomes mandatory from January 1, 2027. To ensure that the governance scheme is put into seamless practice upon the effective enforcement date, the company resolves to describe clear rationale for electronic GSMs in its AOI. We also plan to update the provisions to allow electronic submission in addition to written submission of proof of proxy, thereby meeting the needs of an electronic setting of the general meetings. These revisions are made in advance of the mandatory enforcement to add convenience to shareholder participation and to build the programmatic foundation for the imminent electronic shareholder meetings. Before Amendment Article 19 (Convening of General Meeting of Shareholders) Article 23. Vote by Proxy (2) A proxy shall submit a document evidencing the power of representation to the Company before the opening of the General Meeting of Shareholders. New Addenda After Amendment Article 19 (Convening of General Meeting of Shareholders) (5) The Company shall hold General Meetings of Shareholders in a manner that allows some shareholders to participate in and vote on resolutions from remote locations by electronic means, without bein g physically present at a venue of the meeting. Article 23 (Vote by Proxy) (2) A proxy shall submit a document or an electronic document evide ncing the power of representation to the Company before the opening of the General Meeting of Shareholders. ADDENDA (March 24, 2026) Article 2 (Transitional Measures for a Venue and Method of a General Meeting of Shareholders, and Proxy Voting) The amended provisions of Article 19 and Article 23, Paragraph (2) shall come into force on January 1, 2027. Reason AOI amended to introduce electronic GSM Enforcement Date Addenda 16

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Item 2-5: Delete provision regarding separate cumulative voting Pursuant to Article 382-2 of the Commercial Act, the Company has adopted a cumulative voting system, which grants voting rights per share equivalent to the number of directors to be elected. Currently, the AOI mandates that cumulative voting be staged separately for inside and outside directors. In December 2025, the Ministry of Justice issued an executive interpretation providing that when cumulative voting is arranged, it should be applied collectively to all director candidates. Hence, to align with the interpretation and in consideration of standard practices, the Company resolves to remove the provisions regarding ‘separate cumulative voting’ from its AOI, thereby enhancing our legal compliance and governance. Before Amendment Article 28. Election of the Directors and Representative Directors (3) If Directors are appointed by a cumulative voting, the Inside Directors and the Independent Outside Directors are separately considered, and then, the cumulative voting shall apply to each group. New Addenda After Amendment Article 28.(Election of Directors and Representative Directors) (Delete) ADDENDA (March 24, 2026) Article 1 (Effective Date) The amended Articles of Incorporation shall be effective from the date on which they are approved by the resolution at the Ordinary General Meeting of Shareholders for the 58th fiscal year. Reason AOI amended to introduce unified cumulative voting Enforcement Date Addenda 17

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Agenda Description (3~6) – Director Appointment Item 3 : Appointment of Inside Directors Item 4 : Appointment of LEE, Hee Geun as Non-Standing Director Item 5 : Appointment of KIM, Jooyoun as Outside Director Item 6 : Appointment of KIM, Joon Gi as Outside Director to Serve on the Audit Committee

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Item 3 : Appointment of Inside Directors LEE, Ju Tae Candidate for Inside Director Basic Info—Date of Birth : February 1964 Gender : Male Nomination type : Re-appointment Nominated by : BoD Relationship to the largest shareholder: None—POSCO group related transactions during the past 3 years : None Financial delinquency, manager of insolvent business or other legal disqualifications : None Professional Experience Mar. 2025~ Head, Corporate Strategy Division (Representative Director & President), POSCO HOLDINGS INC. Apr. 2024 Head, Corporate Strategy Team (Sr.EVP), POSCO HOLDINGS INC. Mar. 2023 Head, Corporate Planning and Finance Division (Inside Director & Sr.EVP), POSCO Jan. 2021 Head, Purchasing and Investment Division (Sr.EVP), POSCO Jan. 2019 Head of Management Strategy Office (EVP), POSCO Feb. 2018 Representative President (EVP), POSCO Asia (Hong Kong) Mar. 2015 Representative President (Sr.VP), POSCO Asia (Hong Kong) Jul. 2014 Representative President (Sr.VP), POSCO-America (USA) Reason for Recommendation In his capacity as head of Corporate Strategy Division, Mr. Lee contributed to enhancing the Company’s future business portfolio through investment in overseas steel production and securing prominent lithium assets for rechargeable battery materials. His rich knowledge and experience across the Group’s businesses will help to strengthen effective decision-making on key matters and generate outcomes in future businesses. 19

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Item 3 : Appointment of Inside Directors KIM, Ki Soo Candidate for Inside Director Basic Info—Date of birth : April 1965 Gender : Male Nomination type: Re-appointment Nominated by : BoD Relationship to the largest shareholder : None—POSCO group related transactions during the past 3 years : None Financial delinquency, manager of insolvent business or other legal disqualifications : None Professional Experience Mar. 2024 ~ Head, POSCO N.EX.T Hub, CTO (Inside Director & Sr.EVP), POSCO HOLDINGS INC. Jan. 2024 Head, Technical Research laboratories (Sr.EVP), POSCO Jan. 2020 Head, Low-Carbon Process R&D Center (EVP), POSCO Feb. 2017 Head, Engineering Solution Office (Sr.VP), POSCO Jun. 2014 Head, Research Infrastructure Group (VP), POSCO Reasons for Recommendation As Head of POSCO N.EX.T Hub, Mr. Kim helped to innovate Corporate R&D system led by the holding company and define the Group’s DX strategy. By leveraging his expertise in steel research and leadership in technology development, Mr. Kim will contribute to reinforcing the Group’s AX and developing advanced technology to outperform competition and secure business competitiveness. 20

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Item 3 : Appointment of Inside Directors Chung, Seok Mo Candidate for Inside Director Basic Info—Date of Birth : November 1966 Gender : Male Nomination type: New appointment Nominated by : BoD Relationship to the largest shareholder : None—POSCO group related transactions during past 3 years : None Financial delinquency, manager of insolvent business or other legal disqualifications : None Professional Experience Dec. 2025 ~ Head, Business Synergy Division (Sr.EVP), POSCO HOLDINGS INC. Jan. 2025 Head, Industrial Gas Business Unit (EVP), POSCO & (concurrently) President, POSCO ZHONGTAI AIR SOLUTION Feb. 2022 Head, Industrial Gases Business Project Team (EVP), POSCO Jan. 2020 Head, LiB Materials Business Office (Sr.VP), POSCO Jan. 2018 President, eNtoB Resasons for Recommendations Utilizing his broad range of experience and deep insight across steel, rechargeable battery materials, and industrial gas in his role as the Head of the Business Synergy Division, Mr. Chung will help to strengthen the native competence of the Group’s core businesses and accelerate the process to redefine the Group’s business structure. 21

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Item 4 : Appointment of LEE, Hee Geun as Non-Standing Director LEE, Hee Geun Candidate for Non-Standing Director Basic Info—Date of Birth: December 1962 Gender : Male Nomination type : New appointment Nominated by : BoD Relationship to the largest shareholder : None—POSCO group related transactions during past 3 years : None Financial delinquency, manager of insolvent business or other legal disqualifications : None Professional Experience Mar. 2025 ~ Representative Director & President, POSCO Nov. 2024 Head, Facilities Competitiveness Enhancement TF Team (Sr.EVP) Mar. 2023 Head, Safety & Environment Division (Inside Director & Sr.EVP) Mar. 2021 Representative Director & President, POSCO M-Tech Jan. 2018 Deputy Head, Pohang Works Iron and Steelmaking Sector (Sr.VP), POSCO Reasons for Recommendations Serving as the Representative Director of POSCO, Mr. Lee helped to enhance the fundamental competitiveness and profitability of the steel business. His participation in the holding company board will reinforce close collaboration with POSCO and significantly assist the board in rational decision-making on various challenges faced by the Group. 22

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Item 5 : Appointment of KIM, Joo Youn as Outside Director Basic Info KIM, Joo Youn (Female) June 1967 (Age: 58) New Appointment as Outside Director Reasons for Recommendation With extensive experience in business management and brand operations, Ms. Kim’s career at P&G spans multiple leadership roles, i.e., Representative Director and President of P&G Korea, Global Chief Marketing Officer (CMO) of P&G Grooming, and Vice Chair for Korea/Japan. At P&G Global, Ms. Kim served on the board as the head of the leadership council; after retiring from P&G, she was appointed as outside director to SK Innovation, a Korean company, helping to improve the management and governance structure through her service on the board, i.e., the HR Evaluation and Remuneration Committee, Strategy and ESG Committee. Through her experience in business management and marketing at a global company and work as an outside director at a Korean company, Ms. Kim will assist board operations by providing insights and help strengthen the Company’s growth and sustainability Professional Experience of the Candidate Education B.S./M.S. in Biology, Yonsei University Key Professional Career 2023~Outside Director, SK Innovation Co., Ltd. 2019 ~ 2022Vice Chair, P&G Korea/Japan & Global Chief Marketing Officer, P&G Grooming 2018 ~ 2019Vice Chair, P&G Gillette Asia 2016 ~ 2018Representative Director and president of P&G Korea 2012 ~ 2015Marketing Director, P&G Asia-Pacific India (EVP) 2011 ~ 2012Global Brand Franchise Leader, P&G 2005 ~ 2010Marketing Director, P&G Korea Other Info -Nominated by : Director Candidate Recommendation Committee Relationship to the largest shareholder : None - POSCO group related transactions during past 3 years : None Financial delinquency, manager of insolvent business or other legal disqualifications : None BSM ESG / Sustainable managment • Leadership • Risk Management • Industry Experience • Technology, Digital, and Innovation—Finance and Accounting • Law and Public Policy—Global Biz • Business Development and M&A—23

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Item 6 : Appointment of KIM, Joon Gi as Outside Director to Serve on the Audit Committee Basic Info KIM, Joon Gi (Male) May 1965 (Age: 60) Re-appointment as Outside Director (Separate Appointment) Reasons for Recommendation As a law professor and professional expert in international trade and commerce laws and corporate governance enhancement, Mr. Kim has served as arbitrator at domestic and international dispute settlement bodies and as Executive Director at the Hills Governance Center. He is also active in various research projects in international dispute resolution, trade and governance. Mr. Kim’s academic record and expertise gained from his legal practice will provide insights in the business management and board operations, significantly enhancing the Company’s international competitiveness in governance. Professional Experience of the Candidate Education J.D., Georgetown University Law Center M.A. in Political Science, Yonsei University B.A. in Political Science, Columbia University Professional Experience 2023 ~ Outside Director, POSCO HOLDINGS INC. 2008 ~ Professor of Law, Yonsei University Law School 2024 ~ Co-Chair, International Bar Association(IBA) 2022 ~ 2024 President, The Korean Council for International Asia Pacific Arbitration Group Arbitration (KOCIA) 2021 ~ Member/Alternative member, ICC 1998 ~ 2008 Professor, Graduate School of International International Court of Arbitration Studies, Yonsei University 2018 ~ Member, Internatinoal Arbitration Committee 2003 ~ 2007 Executive Director, Hills Governance Center KCAB International 1995 ~ 1998 Professor of Business Administration, Hongik 2013 ~ Arbitrator for the ICSID University 1992 ~ 1995 Attorney, Foley Lardner Other info—Nominated by : Director Candidate Recommendation Committee Relationship to the largest shareholder : None—POSCO group related transactions during past 3 years : None Financial delinquency, manager of insolvent business or other legal disqualifications : None BSM ESG / Sustainable managment • Leadership • Risk Management • Industry Experience—Technology, Digital, and Innovation—Finance and Accounting • Law and Public Policy • Global Biz • Business Development and M&A—24

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Outside Director Board Skills Matrix (upon approval of the 58th GSM) The Board Skills Matrix (BSM) has been designed and put in place with the goal to enhance the diversity and expertise of the Board members.—Matrix classifies two main skill areas, i.e., General Management, Industry Specific, which help to specify industry experience and technical competencies. Board Skills Matrix of Outside Directors General Management Skills : ESG·Sustainable Management, Leadership, Risk Management Industry Specific Skills: Industry Experience, Technology, Digital and Innovation, Finance and Accounting, Law and Public Policy, Global Biz, Business Development and M&A YOO, KIM, KIM, KWON, YOO, SOHN, PARK, Category Young Joon Gi Joo Youn Tae-Kyun Jin Nyoung Sung Kyu Sung Wook Sook (Re-appointment) (New Appointment) General Management Skills Industry Specific ESG/Sustainable Management Leadership Risk Management • • • • • • • Industry Experience — Technology, Digital and Innovation Finance and Accounting Law and Public Policy -Global Biz— Business Development/ M&A — — Gender F M M M M M F Current Affiliation Professional Experience General Overview Honorary Chair of the Board, Climate Change Center Vice President, Korea Institute of Science and Technology (KIST) Minister of Environment Outside Director, Kumho Petrochemical Head of Free Economic Zone Plannning, Ministry of Finance and Economy Ambassador to the UAE CEO, ANGEL 6+ CTO/President, LG Chem Member, Presidential Advisory Council on Science and Technology Professor Emeritus of Business Administration, Yonsei University Outside Director, Samsung Asset Management President of the Korean Accounting Association—Chair, Korea Semiconductor Industry Association CEO (President- Vice Chairman) SK Hynix Professor of Law, Yonsei University Law School World bank, Arbitrator The first Executive Director at Hills Governance Center, CSIS Attorney, Foley & Lardner Outside Directo r, SK Innovation Vice Chair, P&G Korea/Japan Vice President, P&G Gillette Asia 25

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Outside Director Appointment Process To ensure independence and transparency in the Outside Director (OD) appointment process, in 2005, the Director Candidate Recommendation Committee (DCRC) resolved to launch the Outside Director Recommendation Advisory Panel. The Panel provides the Committee with a shortlist of candidates (5 per position). The Committee then assess the qualifications of the candidates and recommends the finalists to the General Shareholders Meeting (GSM). The GSM votes on the appointment of the new Directors. —The DCRC is exclusively composed of outside directors to ensure procedural independence. —The Advisory Panel consists of five reputable senior leaders in business, finance, academia, or law. To encourage candidate nomination from shareholders, the qualifying standard for nomination has been lowered from those with equity ownership of 0.5% to 0.1%. By offering fair opportunity to responsible shareholders and strengthening shareholder engagement, we aim to ensure the effectiveness of the recommendation policy and to strengthen transparent and open governance. —POSCO HOLDINGS distributes official letters addressed by the DCRC Chair to shareholders who hold 0.1% or more in shares of POSCO HOLDINGS as of June-end of each year and posts a notice online for candidate recommendation. The letter and the notice invites the shareholder to nominate one OD candidate. —For the March 2026 GSM, official letters were sent on August 4, 2025, and call for candidate recommendation was open from August 18 to August 31, 2025. ? From 2018 to 2023, shareholders were required to hold 0.5% or more in equity ownership to recommend candidates. This requirement was changed to 0.1% in 2024 to expand shareholder participation.  To assess individual contribution of each Director, an OD evaluation policy has been introduced. By developing a guide on how to use the evaluation results, a mechanism is in place to validate and filter participation level.—OD reappointment decisions are made based on the assessment of individual contribution during the term. Outside Director (OD) Candidate Appointment Process (Aug. 12, 2025 ~ Mar. 24,2026.) Aug. 12, 2025 Sep. 11 ~ Oct.16 Oct.28 ~ Nov.5 Feb. 19, 2026 Mar.24 Approved ‘OD Candidate Recommendation Advisory Panel’ Panel recommended 5 candidates per position Assessment of OD Candidates Recommendation of OD Candidates Appointment of Outside Directors (DCRC)* (OD Recommendation (DCRC)* (DCRC)* (GSM) Advisory Panel) Advisory Panel) ? Call for shareholder recommendation: Aug. 18, 2025 ~ Aug. 31, 2025 * DCRC: Director Candidate Recommendation Committee 26

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Agenda Description (7) – Director Compensation Limit Item 7 : Director Remuneration Limit

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Item 7 : Director Remuneration Limit A Director’s compensation is comprised of the base salary and performance bonus. Funded by a defined budget approved by the GSM, the final compensation is determined based on standards prescribed by the Board and in consideration of the position and assigned role. The final performance bonus is determined by the Evaluation and Compensation Committee, exclusively composed of outside directors, that meets annually to evaluate management performance. —Assessment Standard (2025) : Quantative assessment based on consolidated financial performance is 60% (OP 15%, Revenue 10%, Operating cash flow 5%, New growth business revenue 5%, R&D expense 5%, ROA 5%, Stock price variance 15%) Qualitative assessment of effort made to enhance long-term competitiveness is 40% (ESG 10%, Business 15%, Investment/Technology 10%, Talent 5%) Total director remuneration administered as of 2025 is KRW5.9 billion; director remuneration limit for 2025 remains unchanged at KRW 10.0 billion. —Compared to 2025, in 2026, the Board will increase by 2 (1 outside director, 1 non-permanent director); however, the additions being non-permanent positions, their remuneration impact will likely be small. Category Number of Directors (Outside Directors) Upper Limit of Total Director Remuneration Total Remuneration Administered 2025 10 (6) KRW 10.0 billion KRW 5.9 billion 2026 12 (7) KRW 10.0 billion—28