Guo Xusheng, aged 59. Mr. Guo is a professor level senior engineer with a Ph.D. degree and an academician of the Chinese Academy of Engineering. In June 2016, he was appointed as General Manager and Deputy Secretary of the CPC Committee of Sinopec Exploration Company; in November 2020, he was appointed as Deputy Chief Geologist of Sinopec Corp.; in July 2022, he was appointed as Dean and Deputy Secretary of the CPC Committee of Sinopec Group Petroleum Exploration and Production Research Institute, and Executive Director and General Manager of Sinopec Petroleum Exploration and Production Research Institute Co. Ltd. In January 2024, he was appointed as Chief Geologist of Sinopec Corp.