Announcement on Estimated Increase in Operating Results for the First Half of 2024

Announcement on Estimated Increase in Operating Results for the First Half of 2024 This announcement is made by Zijin Mining Group Co. Ltd.* (the “Company”) pursuant to Rule 13.09(2)(a) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”) and the Inside Information Provisions (as defined under the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Cap. 571 of the Laws of Hong Kong).Important notes: * It is estimated that the Company realised a net profit attributable to owners of the listed company of approximately RMB14.55-15.45 billion for the first half of 2024 representing an increase of approximately RMB4.248-5.148 billion or an increase of approximately 41%-50% compared with the same period last year.* It is estimated that the Company realised a net profit attributable to owners of the listed company after non-recurring profit or loss of approximately RMB14.85-15.75 billion for the first half of 2024 representing an increase of approximately RMB5.195-6.095 billion or an increase of approximately 54%-63% compared with the same period last year (same period last year: RMB9.655 billion). I. Details of estimated operating results for the reporting period (I) Reporting period of the estimated operating results From 1 January 2024 to 30 June 2024.(II) Details of the estimated operating results Based on the preliminary estimation by the Company’s Finance Department it is estimated that the Company realised a net profit attributable to owners of the listed company of approximately RMB14.55-15.45 billion for the first half of 2024 representing an increase of approximately RMB4.248-5.148 billion or an increase of approximately 41%-50% compared with the same period last year (same period last year: RMB10.302 billion).It is estimated that the Company realised a net profit attributable to owners of the listed company after non- recurring profit or loss of approximately RMB14.85-15.75 billion for the first half of 2024 representing an increase of approximately RMB5.195-6.095 billion or an increase of approximately 54%-63% compared 1with the same period last year (same period last year: RMB9.655 billion). Note: The disclosure criteria for non-recurring profit or loss items at the end of 2023 have been adjusted. For details please refer to the annual report 2023.(III) The estimated operating results for the reporting period have not been audited by certified public accountant.II. Operating results for the same period last year Net profit attributable to owners of the listed company for the first half of 2023: RMB10.302 billion.Net profit attributable to owners of the listed company after non-recurring profit or loss for the first half of 2023: RMB9.655 billion. Earnings per share for the first half of 2023: RMB0.39 per share.III. Main reasons for the estimated increase in operating results for the reporting period (I) Increase in production volume of main mineral products during the reporting period compared with the same period last year: the Company’s production volume of mine-produced gold was approximately 35.4 tonnes representing an increase of 9.6% compared with the same period last year (same period last year: 32.3 tonnes); production volume of mine-produced copper was approximately 518 thousand tonnes representing an increase of 5.3% compared with the same period last year (same period last year: 492 thousand tonnes); production volume of mine-produced silver was approximately 210.3 tonnes representing an increase of 1.3% compared with the same period last year (same period last year: 207.6 tonnes). (II) Sales prices of mine-produced gold mine-produced copper and mine-produced silver during the reporting period have increased compared with the same period last year.IV. Risk warning The Company is unaware of any material uncertain factors which may affect the accuracy of the content in this estimated operating results announcement.V. Other matters The estimated figures mentioned above are only preliminary accounting data. The specific and accurate financial data in the interim report 2024 to be disclosed officially by the Company shall prevail. Investors are advised to pay attention to investment risks.This announcement is published in both Chinese and English. In the case of any discrepancies the Chinese version shall prevail.Investors and shareholders are advised by the board of directors to exercise caution when dealing in the securities of the Company 28 July 2024 Fujian the PRC *The Company’s English name is for identification purpose only 3