Tianjin Lida specializes in power tongs, hydraulic catheads and automated pipe handling equipment.

Tianjin Haixin produces petroleum tubular products including tubing, casing, drill pipes and flanges.

Tianjin Bohai is one of the largest petroleum equipment manufacturers in North China.

Beijing Huaneng manufactures safety equipment for petrochemical industry including safety valves and gas detectors.

Beijing Petroleum Research leverages oil research institute expertise for drilling equipment innovation.

Beijing CNOOC Engineering provides comprehensive technical services for offshore oil and gas field development.

Zhuhai Hengqin focuses on subsea production system integration and installation services.

Shenzhen Haineng specializes in intelligent control systems and IoT devices for the petroleum industry.

Guangzhou South Sea focuses on deepwater equipment manufacturing for South China Sea oil and gas development.

Jinan Luneng specializes in petroleum industry sensors, instruments and intelligent monitoring systems.

Yantai Hengtong focuses on R&D and manufacturing of petroleum drilling pumps and mud pumps.

Qingdao Marine specializes in offshore platform equipment manufacturing, exporting to Southeast Asia and the Middle East.