China Petroleum & Chemical Corporation China Petroleum & Chemical Corporation (Sinopec Corp.) operates as one of China's largest integrated energy and chemical companies, encompassing upstream exploration and production of petroleum and natural gas, midstream pipeline transportation, and downstream refining, marketing, and sales of refined products including gasoline, diesel, jet fuel, and asphalt; petrochemicals such as ethylene, propylene, synthetic fibers, and coal chemical products; and additional services like import-export agency for petroleum, natural gas, and chemicals, alongside research, development, and application of related technologies. Headquartered in Beijing's Chaoyang District and incorporated in 2000 as a subsidiary of Sinopec Group—a state-authorized investment entity formed in 1998—the company maintains the largest refining capacity and ethylene production in China, serves as the top supplier of refined oil products through an extensive domestic sales network primarily in eastern, southern, and central China, and extends operations globally across more than 70 countries with subsidiaries focused on oil and gas, refining, chemicals, and new energy initiatives. Recent developments include signing purchasing contracts worth US$40.9 billion with 34 partners from 17 countries at the China International Import Expo in November 2025, covering crude oil, chemicals, equipment, and consumer goods as part of cumulative CIIE deals exceeding US$325 billion since 2018; advancing a major expansion of the Yasref refining and petrochemical joint venture with Saudi Aramco in Saudi Arabia announced in April 2025 to enhance high-value product output; and emphasizing technological innovation, digital intelligence integration, green low-carbon cooperation, and new energy developments like hydrogen and carbon capture projects during China's 15th Five-Year Plan period.