Shanghai Diesel Engine Co., Ltd. (SDEC), with SAIC Motor Corporation Limited as its main shareholder, is a large state-owned high tech enterprise engaged in research and development and manufacture of engines, engine parts and generator sets, possessing a state-level technical center, a postdoctoral working station, world-level automatic production lines and passage cars standards quality assurance system. Its former was Shanghai Diesel Engine Factory that was established in 1947 and was restructured into a stock-shared company in 1993 with shares of A and B.In its more than 70 years'development, SDEC's products have been used all over the world. SDEC now has nine series of high-quality diesel and natural gas engines, i.e. M, R, H, D, C, E, G ,K and W series. These series engines with power outputs of 50 to 1,800 kW are mainly applied to trucks, buses, construction machinery, generator sets, marine application and agricultural equipment. SDEC is always devoting to constant improvement of product quality and striving to forge a quality-leading supplier of power solution of diesel and new energy in China.