Li Yonglin is a professor-level senior engineer with a doctor's degree. He previously served as Vice President of Sinopec Maoming Petrochemical Company; Chief of Preparatory Group for the Beihai Refining Off-Site Reconstruction Project; Executive Director, President and Deputy Party Secretary of Sinopec Beihai Refining & Chemical Co., Ltd.;  Vice President of Refining Division of Sinopec Corp. (Director General Level); President and Deputy Party Secretary of Sinopec Tianjin Petrochemical Company; President of Sinopec Tianjin Company and Vice Chairman of SINOPEC SABIC Tianjin Petrochemical Co., Ltd.; Party Secretary of Sinopec Tianjin Petrochemical Company and Corporate Representative to Sinopec Tianjin Company for Sinopec Corp.; Assistant to the President, Head of Organizational Dept and President of Human Resource Dept of Sinopec Group.