The board of directors of China Gas Industry Investment Holdings Co. Ltd. announced that Mr. Yao Li tendered his resignation from being the Chairman, an executive Director, the chairman of the nomination committee of the Company, an authorized representative (authorised representative) for Rule 3.05 of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (Stock Exchange) as well as authorized representative for service of process and notices on the Company's behalf in Hong Kong as required under Rule 19.05(2) of the Listing Rules (Process Agent") as he reached his age of retirement with effect from 22 April 2024. Ms. Gao Guimin tendered her resignation from being an executive Director and the chairman of the remuneration committee of the Company as she reached her age of retirement with effect from 22 April 2024.

Ms. Gao has confirmed that she has no disagreement with the Board and there are no other matters relating to her resignation that need to be brought to the attention of the shareholders of the Company. The Board announced the following appointments with effect from 22 April 2024: Mr. Song Changjiang has been appointed as the chairman of the Board, an executive Director, the chairman of the nomination committee, an Authorised Representative and the Process Agent of the Company. Mr. Sun Changhuan has been appointed as an executive Director and a member of the remuneration committee of the Company.

Mr. Song Changjiang (Mr. Song), aged 55, has over 30 years of working experience in the steel industry. He is currently the deputy general manager of Hesteel Tangsteel Group Corporation, an executive director of Tangshan Tangsteel Construction Development Company Limited and the chairman of Tangshan Tang'ang New Building Materials Company Limited. Mr. Song joined the HBIS Group Co.

Ltd. in November 1989 and held the positions of deputy manager, manager and deputy department head successively from 1989 to 2016 at several subsidiaries within the HBIS Group. Mr. Song served as the deputy department head of the supervision department of a subsidiary of the HBIS Group and the deputy director and the director of the corporate office (Office of the Party Committee) of Tangshan Iron and Steel Group Co. Ltd. (HBIS Tangsteel) from 2016 to 2023.

Mr. Song has been appointed as the deputy general manager of HBIS Tangsteel since December 2023. Mr. Song holds university degree, graduated from the Correspondence School of Party School of the CPC Central Committee, majoring in business administration, and is a political engineer. Mr. Sun Changhuan (Mr. Sun), aged 53, has over 30 years of working experience in the industrial gas industry.

He is currently the secretary of the Party Committee and the general manager of Tangshan Tangsteel Gases Co. Ltd. (TTG). He joined the Group in July 1994 and successively worked as a mechanical technician and the deputy director at several subsidiaries within the Group from 1994 to 2007, the manager of different departments of TTG from 2007 to 2011, an assistant general manager and the deputy general manager of TTG from 2011 to 2020, and was appointed as the general manager of TTG in August 2020.

He was appointed as the secretary of the Party Committee and the general manager of TTG in May 2022. Mr. Sun graduated from Hebei Institute of Light and Chemical Industry with a Bachelor's Degree in chemical machinery and equipment and obtained the qualification of professorate senior engineer in metallurgical equipment.