Shandong Shengli leverages Shengli Oilfield expertise to produce drilling, production and gathering equipment.

Shanghai Hanhai focuses on R&D and manufacturing of electrical control systems and automation equipment for oil and gas.

Shanghai Oriental manufactures oil and gas extraction equipment including christmas trees, BOPs and choke manifolds.

Shanghai DeepBlue provides engineering design and technical services for deepwater oil and gas field development.

Jiangsu Hengda specializes in production of petroleum tubular goods including tubing, casing and drill pipes.

Jiangsu Haili specializes in R&D and manufacturing of petroleum drilling and production equipment.

Jiangsu Rutong Petro-machinery Co., Ltd., founded in 1989, is a national high-tech enterprise specializing in R&D, design, manufacturing, sales and service of petroleum machinery equipment.

Shanghai Xiawei Petroleum Equipment & Technology Service Co., Ltd., established in 2014, is a high-tech enterprise specializing in R&D, manufacturing and technical services for subsea wellhead systems.