China Petrochemical Corporation or Sinopec Group is the world's largest oil refining, gas and petrochemical conglomerate, administered by SASAC for the State Council of the People's Republic of China.
It is headquartered at Chaoyangmenwai in Beijing, across the road from the headquarters of fellow state-owned oil company and competitor CNOOC Group.
Sinopec Group ranked the 2nd in the Fortune Global 500 List in 2019, with revenue over US$414 billion. It is the second largest company in the world in terms of revenue.
Its major subsidiary, China Petroleum and Chemical Corporation Limited, commonly referred to as "Sinopec Limited", is listed on the Hong Kong Stock Exchange and the Shanghai Stock Exchange.
Sinopec Ltd. is involved in the production of various petroleum products, including gasoline, diesel, jet fuel, kerosene, ethylene, synthetic fibers, synthetic rubber, synthetic resins, and chemical fertilizers, in addition to exploration of crude oil and natural gas within China.
It also produces several biofuels such as biodiesel and green jet fuel, from waste vegetable oil. It also produces ethanol.
According to en.wikipedia