ANNOUNCEMENT OF RESULTS OF EXTRAORDINARY 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.ANNOUNCEMENT OF RESULTS OF EXTRAORDINARY GENERAL MEETING The Board and all Directors warrant this announcement contains no false information misleading statements or material omissions and accept legal responsibility for the truthfulness accuracy and completeness of the contents thereof.The EGM was held on 10 July 2024.Resolutions set out in the notice of EGM dated 19 June 2024 were duly passed at the EGM.Reference is made to the circular of Jiangxi Copper Company Limited (the “Company”) despatched to its shareholders on 19 June 2024 in respect of inter alia (1) the proposed amendments to the Rules for Independent Directors; and (2) the proposed appointment of executive director (the “Circular”). Unless otherwise stated terms used in this announcement shall have the same meanings as those defined in the Circular.– 1 –RESULTS OF THE EGM The Board is pleased to announce that the EGM was held on 10 July 2024 at 3:00 p.m.at the Conference Room of the Company at JCC International Plaza 7666 Chang Dong Avenue High-tech Development Zone Nanchang Jiangxi the PRC. 14 Shareholders (comprising 13 A Shareholders and 1 H Shareholder) (including proxies) attended the EGM representing 1750641456 Shares (comprising 1301918387 A Shares and 448723069 H Shares) or approximately 50.71% of the total issued Shares carrying voting rights (3452317637 Shares). The EGM was validly convened in compliance with the relevant requirements of the Company Law of the PRC the articles of association of the Company and the relevant regulations. Mr. Zheng Gaoqing the chairman of the Company acted as the chairman of the EGM. The poll results in respect of each of the resolutions proposed at the EGM are as follows: Number of votes (approximate percentage (%) ) Ordinary Resolution Abstain from For Against voting 1. To consider and approve the amendments to A Shareholder(s) A Shareholder(s) A Shareholder(s) the Rules for Independent Directors of Jiangxi 1301910987 7400 0 Copper Company Limited (particulars of which 99.9994% 0.0006% 0.0000% are set out in the Circular). H Shareholder(s) H Shareholder(s) H Shareholder(s) 4479060690817000 99.8179%0.0000%0.1821% Total Total Total 17498170567400817000 99.9996%0.0004% – 2 –Percentage of number of votes for to the total Ordinary Resolution number of votes (By way of cumulative voting) with valid voting Number of rights at the EGM votes for (%) Elected or not 2. To consider and approve the appointment of Mr. 1684942341 96.2471 Elected Yu Minxin as an executive Director for a term of office from the date on which this resolution is passed to the expiry of the term of office of the tenth session of the Board and to authorise the Board to determine his remuneration and any one executive Director to enter into a service contract or letter of appointment on behalf of the Company with Mr. Yu Minxin on and subject to such terms and conditions as the Board shall think fit and to do all such acts and things necessary to give effect to the foregoing.As at the date of the EGM the total number of issued Shares was 3462729405 Shares (comprising 2075247405 A Shares and 1387482000 H Shares). Except for 10411768 A Shares held by the Company in treasury in its repurchase dedicated securities account not carrying voting rights the remaining Shares entitle Shareholders to attend and vote for or against the resolutions at the EGM. The Company did not exercise voting rights at the EGM in respect of the aforesaid treasury Shares. None of the Shares entitled any Shareholder to attend and vote only against the resolutions at the EGM. Save for the aforesaid 10411768 A Shares held by the Company in treasury in its repurchase dedicated securities account the Company did not hold any other treasury Shares (including any treasury Shares held or deposited with the Central Clearing and Settlement System) or repurchased Shares pending cancellation which shall therefore be excluded from the total number of issued Shares entitled to attend and vote at the EGM.The following Directors attended the EGM either in person or by electronic means: Mr.Zheng Gaoqing Ms. Lai Dan and Ms. Liu Shuying.As more than 50% of the votes were cast in favour of the resolution numbered 1 at the EGM the resolution was duly passed as an ordinary resolution of the Company.Ernst & Young Hua Ming LLP has acted as the scrutineer and has checked the mathematical accuracy of calculation of and verified the poll results of each resolution proposed at the EGM based on the poll forms collected.– 3 –The process of the EGM was witnessed by Hou Zhiwei and Wang Jing of Beijing Deheng Law Offices who presented a legal opinion concluding that the convening and the procedures for holding of the EGM the eligibility of the persons who participated and the persons who convened the EGM and the voting procedures thereof were in compliance with the relevant laws and the articles of association of the Company. The voting results are lawful and valid.After the passing of the resolution numbered 2 at the EGM Mr. Yu Minxin was appointed as an executive Director. The biographical and relevant information of Mr.Yu Minxin was disclosed in the Circular.By Order of the Board JIANGXI COPPER COMPANY LIMITED Zheng Gaoqing Chairman Nanchang Jiangxi the PRC 10 July 2024 As at the date of this announcement the executive Directors are Mr. Zheng Gaoqing Mr. Zhou Shaobing Mr. Gao Jian-min Mr. Liang Qing Mr. Liu Fangyun and Mr.Yu Minxin; and the independent non-executive Directors are Mr. Wang Feng Mr. Li Shuidi Ms. Lai Dan and Ms. Liu Shuying.–4–