The board of directors of Wison Engineering Services Co. Ltd. announced that Ms. Rong Wei has resigned from the position of executive director of the Company, and authorized representative of the Company with effect from February 5, 2021, being the expiry date of her three-year fixed term service contract with the company. The board announced that Mr. Yan Shaochun has been appointed as an executive director of the company, and authorized representative of the company with effect from February 5, 2021. Mr. Yan Shaochun has approximately 35 years of experience in oil refining, petrochemical, coal-to-chemicals and other energy chemical industries. Prior to joining Group, Mr. Yan served as the general manager of Wood Zone Co. Ltd. from 2019 to 2021, the deputy director of the engineering department at Sinopec Group from 2017 to 2018, an executive director and the general manager of Sinopec Engineering (Group) Co. Ltd. from 2012 to 2017, the general manager of Luoyang Petrochemical Engineering Corporation Ltd. from 2004 to 2012, the deputy general manager of Sinopec Engineering Incorporation from 1998 to 2004. The Board announced that with effect from February 5, 2021, Mr. Liu Hongjun, a non-executive director of the Company, is appointed as the chairman of the Board. Mr. Yan Shaochun has approximately 35 years of experience in oil refining, petrochemical, coal-to-chemicals and other energy chemical industries. Mr. Liu Hongjun joined the Company as a non-executive director on February 19, 2020. Mr. Liu has over 20 years of work experience in chemical engineering industry. From July 1999 to January 2005, he worked at Shanghai Wison Chemical Engineering Co. Ltd. (currently known as Wison Engineering Ltd. and held various positions, including engineer, deputy manager, manager of project department (division 1) and manager of Nanjing project department. During the period between February 2005 and October 2015, Mr. Liu served at Wison (Nanjing) Chemical Co. Ltd.