ANNOUNCEMENT ON RESOLUTIONS PASSED AT THE 2023 ANNUAL GENERAL MEETING

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.马鞍山钢铁股份有限公司 Maanshan Iron & Steel Company Limited (A joint stock limited company incorporated in the People’s Republic of China) (Stock Code: 00323) ANNOUNCEMENT ON RESOLUTIONS PASSED AT THE 2023 ANNUAL GENERAL MEETING Important Notes: * Resolution voted down at the 2023 annual general meeting (the “AGM”): None The 2023 AGM of Maanshan Iron & Steel Company Limited (the “Company”) was held at the Magang Office Building No. 8 Jiu Hua Xi Road Maanshan City Anhui Province the People’s Republic of China at 1:30 p.m. on Wednesday 19 June 2024.All the resolutions listed in the notice of the 2023 AGM dated 20 May 2024 were approved.I. CONVOCATION AND ATTENDANCE OF THE AGM (i) Date of the AGM: 19 June 2024 (ii) Venue of the AGM: Magang Office Building No. 8 Jiu Hua Xi Road Maanshan City Anhui Province – 1 –(iii) Details of holders of ordinary shares and holders of preference shares with restored voting rights present at the AGM and their shareholdings: 1. Total number of shareholders attending either in person or by proxy 22 Among which: Number of holders of A shares 21 Number of holders of overseas listed foreign shares (H shares) 1 2. Total number of shares with voting rights held by shareholders present at the AGM (shares) 5415376289 Among which: Tot al number of shares held by holders of A shares 3697655936 Total number of shares held by holders of overseas listed foreign shares (H shares) 1717720353 3. Percentage of shares with voting rights held by holders present at the AGM to total number of shares with voting rights of the Company (%) 69.90 Among which: Sh ares held by holders of A shares to total number of shares (%) 47.73 Shares held by holders of overseas listed foreign shares (H shares) to total number of shares (%) 22.17 (iv) Voting was held in compliance with stipulations of the Company Law and the Articles of Association of the Company. The AGM was presided over by Mr. Jiang Yuxiang the chairman of the Company.(v) Directors supervisors and secretary to the board of directors present at the AGM 1. 7 out of 7 current directors of the Company were present at the AGM; 2. 3 out of 3 current supervisors of the Company were present at the AGM; 3. The general manager secretary to the board of directors and deputy general manager of the Company were present at the AGM; 4. Ms. Ge Zhiqun and Ms. Yi Feifan lawyers from Beijing Zhong Lun Law Firm (Shanghai Office) appointed by the Company attended the AGM. KPMG Huazhen LLP acted as the scrutineer at the AGM and Mr. Li Ziyang attended the AGM on behalf of the accounting firm.– 2 –II. DELIBERATION OF THE RESOLUTIONS (I) Resolutions for non-cumulative voting 1. Resolution: To consider and approve the work report of the board of directors for the year 2023 Result: Approved Voting results: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shareholders 3695675136 99.95 1980800 0.05 H shareholders 439482112 99.43 2498082 0.57 Total number of ordinary 4135157248 99.89 4478882 0.11 shares: 2. Resolution: To consider and approve the work report of the supervisory committee for the year 2023 Result: Approved Voting results: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shareholders 3695675136 99.95 1980800 0.05 H shareholders 439482112 99.43 2498082 0.57 Total number of ordinary 4135157248 99.89 4478882 0.11 shares: – 3 –3. Resolution: To consider and approve the audited f inancial statements for the year 2023 Result: Approved Voting results: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shareholders 3695675136 99.95 1980800 0.05 H shareholders 439482112 99.43 2498082 0.57 Total number of ordinary 4135157248 99.89 4478882 0.11 shares: 4. Resolution: To consider and approve the resolution in relation to the appointment of auditor for the year 2024 Result: Approved Voting results: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shareholders 3695675136 99.95 1980800 0.05 H shareholders 441980194 100.00 0 0.00 Total number of ordinary 4137655330 99.95 1980800 0.05 shares: – 4 –5. Resolution: To consider and approve the profit distribution plan for the year 2023 Result: Approved Voting results: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shareholders 3695675136 99.95 1980800 0.05 H shareholders 441980194 100.00 0 0.00 Total number of ordinary 4137655330 99.95 1980800 0.05 shares: 6. Resolution: To consider and approve the remuneration of directors supervisors and senior management for the year 2023 Result: Approved Voting results: For Against Type of shareholders Number of Percentage Number of Percentage votes (%) votes (%) A shareholders 3695675136 99.95 1980800 0.05 H shareholders 441864194 99.97 116000 0.03 Total number of ordinary 4137539330 99.95 2096800 0.05 shares: (II) Explanation regarding voting on the resolutions As at the date of the AGM save as disclosed above no shareholder entitled to attend the AGM was required to abstain from voting in favour of the resolutions pursuant to Rule 13.40 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited. There was no restriction on shareholders as to their votes on any resolution at the AGM and no shareholder entitled to attend the AGM was required to vote only against the proposed resolutions at the AGM. Members present in person or by proxy were entitled to one vote for each share they held.– 5 –III. LAWYER ATTESTATION 1. Attesting law firm for the AGM: Bei jing Zhong Lun Law Firm (Shanghai Office) Lawyers: Ge Zhiqun Yi Feifan 2. Legal opinion after attestation: The convocation and convening procedures of the AGM the qualifications of the attendees the voting procedures and voting results were all in compliance with the relevant provisions of laws regulations normative documents such as the Company Law the Rules of Procedures for General Meetings and the Articles of Association of the Company which were lawful and valid.By Order of the Board Maanshan Iron & Steel Company Limited Ren Tianbao Secretary to the Board 19 June 2024 Maanshan City Anhui Province the PRC As at the date of this announcement the directors of the Company include executive directors Jiang Yuxiang Mao Zhanhong and Ren Tianbao; and independent non-executive directors Guan Bingchun He Anrui Liao Weiquan and Qiu Shengtao.–6–