China Petrochemical is mainly engaged in the exploration, development, mining and sales of oil and natural gas; Production, product sales, storage and transportation of petroleum refining, petrochemical industry, chemical fiber, fertilizer and other chemicals; Oil and gas pipeline transportation;

Import and export of petroleum, natural gas, petroleum products, petrochemicals and other chemical products and other commodities and technologies, and act as an agent for import and export business; Research, development and application of technology and information.

China Petrochemical is the largest producer and supplier of petroleum products in China (including wholesale and retail of gasoline, diesel oil and aviation kerosene), the largest producer and supplier of major petrochemical products in China (including intermediate petrochemical products, synthetic resins, synthetic fiber monomers and polymers, synthetic fibers, synthetic rubber and fertilizers), and the second largest crude oil producer in China.