KOFU, JAPAN--May 10, 2024--Researched by Industrial Info Resources (Sugar Land, Texas--China Offshore Bitumen Company Limited is a refining company belonging to China National Offshore Oil Corporation (CNOOC) that is located in Shandong Province in east China. China Offshore will spend US$77.7 million on 10 refining projects in China such as unit additions, upgrades and maintenance.