Chang Hai Yu

China Petrochemical Corp. principally processes petroleum into petroleum products, intermediate petrochemical products, resins, plastics, and synthetic fibres. The company was founded in July 1983 and is headquartered in Beijing, China.

Part of Oversea-Chinese Banking Corp. Ltd., OCBC Investment Research Pte Ltd. provides investment research. The company is based in Singapore, Singapore.

Sinopec Engineering, Inc. engages in petroleum refining and petrochemical engineering. The company was founded in 1953 and is headquartered in Beijing, China.

Petro-Cyberworks Information Technology Co., Ltd. is a Chinese IT company that provides outsourcing services. The company is based in Beijing, China. The company was founded in 2002.

Sinopec Star Petroleum Co., Ltd. engages in the development and utilization of clean energy resources. Its business activities include exploitation and usage of geothermal energy, solar energy, and biomass energy; oil and gas engineering; and non-oil and gas engineering projects. Its Oil and Gas Engineering business involves in sea and land oil drilling projects. Its Non-Oil and Gas Engineering business covers public works such as roads and bridges. The company was founded on December 7, 1996 and is headquartered in Beijing, China.

Sinopec International Petroleum Exploration and Production Corporation is a company based in Haidian, China. The Chinese company explores for petroleum and gas. The company is ultimately controlled by the Government of China.