Qing Zeng Liu

Sinotech Energy Ltd. provides enhanced oil recovery services. The company provides services to major oil companies in China using leading edge technologies, which include certain patented lateral hydraulic drilling technology and a molecular deposition film technology. It also provides technical services to coalbed methane customers using the lateral hydraulic drilling technology. Sinotech Energy was founded by Qingzeng Liu on June 9, 2010 and is headquartered in Beijing, China

Part of China Coastal Shipping (HK) Co., Ltd., Tianjin Dagang Shengkang Petroleum Technology Dev Co. Ltd. refines petroleum, provides petrochemical engineering services, and distributes oil exploration equipment. The company is based in Tianjin, China.

Wenling Xinghai Ocean Shipping Co. Ltd. is a private company that specializes in transporting petroleum products. The company is based in Wenling, China.

China National Petroleum Corp. engages in the production and supply of oil and gas products. Its businesses include petroleum exploration and production, natural gas and pipelines, refining and marketing, oilfield services, engineering construction, petroleum equipment manufacturing and new energy development, as well as capital management, finance, and insurance services. The company was founded on February 9, 1990 and is headquartered in Beijing, China.