POLL RESULTS OF ANNUAL GENERAL MEETING HELD ON 30 MAY 2024; RETIREMENT OF INDEPENDENT NON-EXECUTIVE DIRECTOR AND CHANGES IN COMPOSITION OF THE BOARD COMMITTEES; CHANGE OF AUDITOR; AND AMENDMENTS TO THE ARTICLES OF ASSOCIATION

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.CHINA EVERBRIGHT ENVIRONMENT GROUP LIMITED 中国光大环境（集团）有限公司 (Incorporated in Hong Kong with limited liability) (Stock code: 257) POLL RESULTS OF ANNUAL GENERAL MEETING HELD ON 30 MAY 2024; RETIREMENT OF INDEPENDENT NON-EXECUTIVE DIRECTOR AND CHANGES IN COMPOSITION OF THE BOARD COMMITTEES; CHANGE OF AUDITOR; AND AMENDMENTS TO THE ARTICLES OF ASSOCIATION POLL RESULTS OF 2024 ANNUAL GENERAL MEETING The board (the “Board”) of the directors (the “Directors”) of China Everbright Environment Group Limited (the “Company”) is pleased to announce that at the annual general meeting of the Company held on 30 May 2024 (the “2024 AGM”) all the resolutions (the “Resolutions”) set out in the notice of 2024 AGM dated 26 April 2024 (the “Notice”) were put and duly passed by the shareholders of the Company (the “Shareholders”) as ordinary resolutions and special resolution by way of poll. The poll results in respect of the Resolutions are as follows: Number of Votes (%) ORDINARY RESOLUTIONS For Against 1. To receive and consider the audited consolidated 3390987284 8863183 financial statements and the report of the directors (99.74%) (0.26%) and independent auditor’s report for the year ended 31 December 2023. 2. To declare a final dividend of HK8.0 cents per 3400012384 83 share for the year ended 31 December 2023. (99.99%) (0.01%) 1Number of Votes (%) ORDINARY RESOLUTIONS For Against 3. (1) To re-elect Mr. LUAN Zusheng as an Executive 3370670544 29179923 Director of the Company. (99.14%) (0.86%) (2) To re-elect Mr. KANG Guoming as a Non-executive 3262753667 137096800 Director of the Company. (95.97%) (4.03%) (3) To re-elect Mr. PAN Jianyun as a Non-executive 3311696084 88154383 Director of the Company. (97.41%) (2.59%) (4) To re-elect Mr. SUO Xuquan as an Independent 3259946099 139904368 Non-executive Director of the Company. (95.88%) (4.12%) (5) To authorise the Board to fix the remuneration of the 3396401795 3448672 Directors for the year ending 31 December 2024. (99.90%) (0.10%) 4. To appoint KPMG as auditor of the Company in 3399301384 711083 place of the retiring auditor Ernst & Young to (99.98%) (0.02%) hold office until the conclusion of the next annual general meeting of the Company at a remuneration to be fixed by the Board as set out in Ordinary Resolution no. 4*. 5. (1) To grant a general mandate to the Directors to 2817185002 582827465 issue new shares not exceeding 20% of the total (82.86%) (17.14%) number of issued shares as set out in Ordinary Resolution no. 5(1)*. (2) To grant a general mandate to the Directors to 3393535718 6476749 repurchase shares not exceeding 10% of the total (99.81%) (0.19%) number of issued shares as set out in Ordinary Resolution no. 5(2)*. (3) To extend the general mandate granted to the 2899768538 500081929 Directors to issue new shares as set out in (85.29%) (14.71%) Ordinary Resolution no. 5(3)*.Number of Votes (%) SPECIAL RESOLUTION For Against 6. To consider and approve the amendments to the 3311516329 88476138 articles of association of the Company as set out in (97.40%) (2.60%) Special Resolution no. 6*.* Please refer to the Notice for the full text of the Resolutions 2As at the date of the 2024 AGM the total number of issued and fully paid up shares of the Company was 6142975292 shares which was the total number of shares entitling the Shareholders to attend and vote on the Resolutions put at the 2024 AGM. None of the Shareholders was required under Rule 13.40 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”) to abstain from voting in favour of the Resolutions at the 2024 AGM and none of the Shareholders was required under the Listing Rules to abstain from voting at the 2024 AGM. None of the Shareholders stated his/her/its intention in the circular of the Company dated 26 April 2024 (the “Circular”) to vote against or to abstain from voting on the Resolutions proposed at the 2024 AGM.As more than 50% of the votes were cast in favour of resolutions nos.1 to 5 respectively each of the said resolutions was duly passed as an ordinary resolution by way of poll at the 2024 AGM.As more than 75% of the votes was cast in favour of resolution no.6 the said resolution was duly passed as a special resolution by way of poll at the 2024 AGM.Tricor Tengis Limited the share registrar of the Company acted as the scrutineer for the poll at the 2024 AGM.All Directors attended the 2024 AGM in person or by video conference except Mr. Zhai Haitao who could not attend the 2024 AGM due to other important business commitments.Shareholders may refer to the Circular for details of the Resolutions put at the 2024 AGM which may be viewed and downloaded from the Company’s website at www.cebenvironment.com/en/ir/circulars.php or the designated website of Hong Kong Exchanges and Clearing Limited at www.hkexnews.hk.RETIREMENT OF INDEPENDENT NON-EXECUTIVE DIRECTOR AND CHANGES IN COMPOSITION OF THE BOARD COMMITTEES References are made to the relevant announcement of the Company dated 27 March 2024 (the “Announcement on the Changes of Directors”). Unless otherwise defined herein capitalised terms in this announcement have the same respective meanings given to them in the Announcement on the Changes of Directors. Mr. Zhai Haitao (“Mr. Zhai”) has retired as INED upon the conclusion of the 2024 AGM. At the same time he ceased to act as the chairman of the Remuneration Committee and a member of each of the Audit Committee and the Nomination Committee. 3Moreover Mr. Fan Yan Hok Philip was re-designated from the chairman to a member of the Risk Management Committee and was re-designated from a member to the chairman of the Remuneration Committee; and Mr. Suo Xuquan was re-designated from a member to the chairman of the Risk Management Committee and was appointed as a member of the Audit Committee all with effective from the conclusion of the 2024 AGM.Mr. Zhai has confirmed that he has no disagreement with the Board and save as disclosed in this announcement and the Announcement on the Changes of Directors there are no other matters relating to his retirement that need to be brought to the attention of the Shareholders nor any information that needs to be disclosed pursuant to Rule 13.51(2) of the Listing Rules.Mr. Zhai has demonstrated dedication and diligence since he joined the Board in January 2011. The Board would like to express its sincere gratitude to Mr. Zhai for his ongoing valuable professional and independent opinions provided to it for his high level of performance in discharging the duties as the chairman of the Remuneration Committee and members of the Board committees and for his outstanding contribution to the high-quality and sustainable development of the Company.CHANGE OF AUDITOR The Shareholders have approved the above-mentioned Ordinary Resolution no.4 KPMG was appointed as auditor of the Company in place of the retiring auditor Ernst & Young with effective from the conclusion of the 2024 AGM. KPMG holds office until the conclusion of the next annual general meeting of the Company.The Board would like to take this opportunity to express its warm welcome to KPMG on its appointment as the new auditor of the Company and express its sincere gratitude to Ernst & Young for providing the professional services to the Company over the years. 4AMENDMENTS TO THE ARTICLES OF ASSOCIATION The Shareholders have approved the above-mentioned Special Resolution no.6 and the amendments to the articles of association of the Company then came into effect from the conclusion of the 2024 AGM. The full text of the revised articles of association of the Company can be viewed and downloaded from the Company’s website at www.cebenvironment.com/en/about/constitutionaldoc.php or the designated website of Hong Kong Exchanges and Clearing Limited at www.hkexnews.hk.By Order of the Board China Everbright Environment Group Limited Poon Yuen Ling Company Secretary Hong Kong 30 May 2024 As at the date of this announcement the Board comprises: (i) two Executive Directors namely Mr. Huang Haiqing (Chairman of the Board) and Mr. Luan Zusheng (Chief Executive Officer); (ii) two Non-executive Directors namely Mr. Kang Guoming and Mr. Pan Jianyun; and (iii) three Independent Non-executive Directors namely Mr. Fan Yan Hok Philip Mr. Suo Xuquan and Ms. Li Shuk Yin Edwina. 5