The board of directors of Wison Engineering Services Co. Ltd. announced that Mr. Yan Shaochun (Mr. Yan) has resigned as an executive director of the Company, chief executive officer of the Group and authorised representative of the Company with effect from 31 December 2022 as he would like to devote more time to his other personal commitments. The Board also announced that Mr. Zhou Hongliang (Mr. Zhou), an executive director of the Company, has been appointed as the chief executive officer of the Group and authorised representative of the Company with effect from 31 December 2022.

The biographical details of Mr. Zhou are set out below: Mr. Zhou Hongliang, age 53, is a senior vice president of the Group and was appointed as an executive director of the Company on 10 September 2013. He is mainly responsible for the Company's PRC local EPC projects management, domestic market development and system establishment in terms of quality and safety. He graduated from Liaoning Shihua University, formerly known as the Fushun Petroleum Institute in 1991.

He received his master's degree in business administration from China Europe International Business School in 2014. He obtained the qualification of constructor from the Ministry of Construction of the People's Republic of China in 2006. He was responsible for project management in Sinopec Ningbo Engineering Co.

Ltd. from 1991 to 2002. From 2002 to 2004, Mr. Zhou worked as a deputy manager in the Ethylene Project Team in Shanghai SECCO Petrochemical Company Limited. Mr. Zhou joined the Group in January 2005 as a manager of the construction management department of Wison Engineering and was appointed as the deputy general manager of Wison Engineering in January 2008.

He has over 30 years of experience in the petrochemicals industry.