OVERSEAS REGULATORY ANNOUNCEMENT - ANNOUNCEMENT ON RESOLUTIONS OF THE BOARD OF DIRECTORS

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) OVERSEAS REGULATORY ANNOUNCEMENT ANNOUNCEMENT ON RESOLUTIONS OF THE BOARD OF DIRECTORS This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.I. CONVENING OF THE MEETING OF THE BOARD OF DIRECTORS On Friday 21 June 2024 the 25th meeting of the tenth session of the board of directors of Maanshan Iron & Steel Company Limited (the “Company”) was held by way of written resolutions. There were seven directors eligible for attending the meeting and seven of them attended it. The meeting of the board of directors was convened in compliance with the provisions of the laws regulations and requirements under the Articles of Association.II. CONSIDERATION OF THE BOARD OF DIRECTORS (I) The Resolution in relat ion to the Extension of the Performance of Undertaking on Non-Competition by the Indirect Controlling Shareholder China Baowu was approved.Voting results: 5 voted in favour 0 voted against and 0 abstained from voting. Jiang Yuxiang and Mao Zhanhong being related directors abstained from voting. Such resolution was considered and approved at the special meeting of independent directors of the Company. For details please refer to the Announcement on Extension of the Performance of Undertaking on Non-Competition by Indirect Controlling Shareholder China Baowu Steel Group Corporation Limited issued by the Company on the same date.– 1 –(II) The agenda of the 2024 third extraordinary general meeting was approved.Voting results: 7 voted in favour 0 voted against and 0 abstained from voting. The general meeting will be held at the Magang Office Building No. 8 Jiu Hua Xi Road Maanshan City Anhui Province at 1:30 p.m. on Thursday 18 July 2024. For details please refer to the notice of general meeting to be issued separately by the Company in due course.Maanshan Iron & Steel Company Limited The Board of Directors 21 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.–2–