REPLY SLIP FOR ATTENDINGTHE 2023 ANNUAL GENERAL MEETING TO BE HELD ON 28 JUNE 2024

DONGJIANG ENVIRONMENTAL COMPANY LIMITED* 东江环保股份有限公司 (a joint stock limited company incorporated in the People’s Republic of China) (Stock code: 00895) REPLY SLIP FOR ATTENDING THE 2023 ANNUAL GENERAL MEETING TO BE HELD ON 28 JUNE 2024 I/We of address(es) (Note 1) being the registered holder(s) of (Note 2) shares of RMB1.00 each in the share capital of Dongjiang Environmental Company Limited* (the “Company”) will attend (or appoint proxy(ies) to attend on my/our behalf) the 2023 annual general meeting of the Company to be held at 11th Floor Dongjiang Environmental Building No. 9 Langshan Road Nanshan District Shenzhen the People’s Republic of China on Friday 28 June 2024 at 3:00 p.m.. Shareholder’s Signature: Date: 2024 Notes: 1. Please insert the full name(s) and address(es) as shown in the registers of members of the Company in BLOCK CAPITAL LETTERS. 2. Please insert the number of share(s) of the Company registered in your name(s). 3. Please attach a copy of your identity card/passport and a copy of proof of ownership of your shares. 4. To facilitate the Company in making arrangements for the AGM you are invited to to complete this reply slip and return it to the Company’s H share registrar Tricor Tengis Limited at 17/F Far East Finance Centre 16 Harcourt Road Hong Kong (for holders of H Shares of the Company) not less than 24 hours before the time appointed for the holding of the 2023 annual general meeting (i.e. 3:00 p.m. on Thursday 27 June 2024). However the completion and return of this reply slip or not will not affect your right to attend and/or vote at the AGM. * For identification purpose only