Shanghai Diesel Engine Co., Ltd., formerly known as Shanghai Diesel Engine Factory, was founded in 1947, now it belongs to SAIC Group. It is a large scale national high tech enterprise engaged in research and development and manufacture of engines, spare parts and generating units.

Originally founded by N. A. Otto & Cie. in 1864 in Cologne, Germany, Deutz is the world's oldest and leading independent engine manufacturer. As a full range of engine experts, Deutz provides water-cooled and air-cooled engines with power ranging from 25 KW to 520 KW, which can be widely used in construction machinery, generating units, agricultural machinery, commercial vehicles, railway locomotives and ships, and in various professional supporting applications.

Cummins - the world's leading power solutions provider As a global power leader, Cummins designs, produces and distributes multiple power solutions and provides service support. The company's products include diesel and natural gas engines, hybrid and electric power platforms and related technologies, including transmission systems, battery systems, fuel systems, control systems, air intake processing systems, filtration systems, emission processing systems and power systems.