RETIREMENT AND APPOINTMENT OF SUPERVISOR

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.CMOC Group Limited* (a joint stock company incorporated in the People’s Republic of China with limited liability) (Stock Code: 03993) RETIREMENT AND APPOINTMENT OF SUPERVISOR This announcement is made pursuant to Rule 13.51(2) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”).RETIREMENT OF SUPERVISOR The board of directors (the “ Board”) of CMOC Group Limited* (the “Company” together with its subsidiaries the “Group”) hereby announces that Mr. Xu Wenhui (“Mr. Xu”) has retired from his position as the staff representative supervisor of the Company (the “Supervisor”) due to personal work arrangement and his retirement has taken effect from 31 May 2024. Mr. Xu confirmed that he has no disagreement with the supervisory committee of the Company and the Board during the term of his office and there is no matter in relation to his retirement that needs to be brought to the holders of securities of the Company or The Stock Exchange of Hong Kong Limited.APPOINTMENT OF SUPERVISOR The Board is pleased to announce that at the staff representatives general meeting of the Company (the “Staff Representatives General Meeting”) held on 31 May 2024 Mr. Li Hongwei (“Mr.Li”) was appointed by the staff representatives of the Company to be the new Supervisor with effect from the date of this announcement. Particulars of Mr. Li are as follow: Mr. Li born in 1982 obtained a doctorate degree in laws from Fudan University. From 2008 to 2015 he served as a prosecutor at the anti-corruption department of the Shanghai Zhabei People’s Procuratorate (上海市闸北区人民检察院). From 2015 to 2021 he successively served as the director senior director and executive general manager of the integrity inspection department of Shanghai Fosun High Technology (Group) Co. Ltd. (上海复星高科技(集团)有 限公司). From 2021 to 2022 he served as the director of the inspection department of Jiangsu Zhongnan Construction Group Co. Ltd. (江苏中南建设集团股份有限公司). Since February 2022 he successively served as senior director and deputy general manager (presiding) of the anti-corruption department of the Company. Mr. Li has a wealth of experience in corporate anti- corruption risk control and criminal compliance. 1Mr. Li will enter into a service contract with the Company to serve as a Supervisor commencing from the date on which his appointment is approved at the Staff Representatives General Meeting to the date on which the 2026 annual general meeting of the Company will be held. Mr. Li will receive remuneration as Supervisor under the service contract and his remuneration will be determined in accordance with the relevant laws and regulations of the People’s Republic of China and the relevant measures on remuneration of the Company. Pursuant to the Listing Rules the Company will disclose in its annual reports the remuneration received by Mr. Li from the Company during the relevant reporting period.Save as disclosed above as at the date of this announcement Mr. Li does not have any relationship with any directors other supervisors senior management substantial shareholders or controlling shareholders of the Company and does not hold any other positions in the Group or any other directorships in listed public companies in the last three years. As at the date of this announcement Mr. Li does not have any interests in the Company or any of its associated corporations within the meaning of Part XV of the Securities and Futures Ordinance (Cap. 571 of the laws of Hong Kong).Save as disclosed above there is no other information relating to Mr. Li that is required to be disclosed pursuant to Rules 13.51(2) (h) to 13.51(2) (v) of the Listing Rules and there is no other matter in relation to the appointment of Mr. Li that needs to be brought to the attention of the holders of securities of the Company.By Order of the Board CMOC Group Limited* Yuan Honglin Chairman Luoyang City Henan Province the People’s Republic of China 31 May 2024 As at the date of this announcement the Company’s executive directors are Mr. Sun Ruiwen and Mr. Li Chaochun; the Company’s non-executive directors are Mr. Yuan Honglin Mr. Lin Jiuxin and Mr. Jiang Li; and the Company’s independent non-executive directors are Mr. Wang Gerry Yougui Ms. Yan Ye and Mr. Li Shuhua.* For identification purposes only 2