POLL RESULTS OF THE ANNUAL GENERAL MEETING HELD ON 20 JUNE 2024

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.(Incorporated in the Cayman Islands with limited liability) (Stock Code: 01164) POLL RESULTS OF THE ANNUAL GENERAL MEETING HELD ON 20 JUNE 2024 The Board is pleased to announce that all the ordinary resolutions set out in the notice of the AGM were duly passed by the Shareholders by way of poll at the AGM held on 20 June 2024.Reference is made to the circular (the “Circular”) of CGN Mining Company Limited (the “Company”) dated 25 April 2024 in relation to among other matters proposals for grant of general mandates to allot and issue Shares and to repurchase Shares and proposals for re-election of Directors. Capitalised terms used herein shall have the same meanings as those defined in the Circular unless defined otherwise.The Board is pleased to announce that all the ordinary resolutions (the “Resolutions”) set out in the notice of the AGM dated 25 April 2024 were duly passed by the Shareholders by way of poll at the AGM.The poll results of the Resolutions are as follows: Number of Votes ORDINARY RESOLUTIONS (Approximate%) For Against 1. To consider and adopt the audited consolidated 6037374451 125000 financial statements and the reports of the directors (99.9979%) (0.0021%) and the auditors of the Company for the year ended 31 December 2023. 1Number of Votes ORDINARY RESOLUTIONS (Approximate%) For Against 2. (a) To re-elect Mr. Sun Xu as a non-executive 5725599573 282859878 director of the Company. (95.2923%) (4.7077%) (b) To re-elect Mr. Yin Xiong as a non-executive 5917326226 120173225 director of the Company. (98.0096%) (1.9904%) (c) To re-elect Mr. Liu Guanhua as a non-executive 5726510029 281949422 director of the Company. (95.3075%) (4.6925%) (d) To re-elect Mr. Zhang Yuntao as an independent 6037144079 355372 non-executive director of the Company. (99.9941%) (0.0059%) 3. To author ise the board of d i rectors to f ix the 6036345941 1153510 remuneration of the directors of the Company. (99.9809%) （0.0191%） 4. To re-appoint BDO Limited as the auditors of the 6037499451 0 Company and to authorise the board of directors to (100.0000%) (0.0000%) fix their remuneration. 5. To approve the general unconditional mandate to 5251019108 757440343 be granted to the board of directors for the issue (87.3938%) (12.6062%) of additional new shares up to 20% of the issued share capital of the Company as at the date of this resolution. 6. To approve the general unconditional mandate to be 6037499451 0 granted to the board of directors for the repurchase (100.0000%) (0.0000%) of shares up to 10% of the issued share capital of the Company as at the date of this resolution. 7. To authorise the board of directors to allot issue or 5187152162 821307289 otherwise deal with additional shares equal to the (86.3308%) (13.6692%) number of shares repurchased.Note: Please refer to the notice of the AGM for the full text of the Resolutions.As more than 50% of the votes were casted in favour of each of the Resolutions all Resolutions were duly passed as ordinary resolutions of the Company. 2As at the date of the AGM the total number of issued Shares was 7600682645 Shares which was the total number of Shares entitling the Shareholders to attend and vote for or against the Resolutions. There were no (i) treasury shares held by the Company (including any treasury shares held or deposited with the Central Clearing and Settlement System established and operated by Hong Kong Securities Clearing Company Limited) and as such no voting rights of treasury shares have been exercised at the AGM; and (ii) repurchased Shares which are pending cancellation and should therefore be excluded from the total number of issued Shares for the purpose of the AGM.There were no Shares entitling the holders to attend but to abstain from voting in favour of any of the Resolutions at the AGM as required under Rule 13.40 of the Listing Rules and there were no Shares held by Shareholders that are required under the Listing Rules to abstain from voting on any of the Resolutions at the AGM. None of the Shareholders have stated their intention in the Circular to vote against or abstain from voting on any of the Resolutions at the AGM.Save for Mr. An Junjing and Mr. Sun Xu who were unable to attend the AGM due to other work arrangements all other Directors namely Ms. Xu Junmei Mr. Yin Xiong Mr. Liu Guanhua Mr. Qiu Xianhong Mr. Gao Pei Ji and Mr. Zhang Yuntao attended the AGM in person or by electronic means.The Hong Kong branch share registrar of the Company Union Registrars Limited was appointed as the scrutineer for vote-taking at the AGM.By order of the Board CGN Mining Company Limited Xu Junmei Executive Director Hong Kong 20 June 2024 As at the date of this announcement the Board comprises two executive Directors: Mr. An Junjing (chairman and chief executive officer) and Ms. Xu Junmei; three non-executive Directors: Mr. Sun Xu Mr. Yin Xiong and Mr. Liu Guanhua; and three independent non-executive Directors: Mr. Qiu Xianhong Mr. Gao Pei Ji and Mr. Zhang Yuntao.* For identification purpose only 3