AECC Aero-Engine Control (中国航发动力控制股份有限公司) is a company that manufactures aircraft engine control systems. It is composed of three businesses: aircraft engine and gas turbine control systems, international cooperation business, and control system technology derivatives. The aircraft engine and gas turbine control systems division offers the development, production, repair, sales, and service of aero-engine control systems. The international cooperation business provides subcontracting production of civil aviation precision parts, such as aero-engine rocker arms, flight control systems, fuel system spool valve couplings, engine pump housing components, and other precision parts manufacturing. The control system technology derivative division provides the development, production, sales, and service of high-end electro-hydraulic actuators for ground combat vehicles, key components of elastic power control systems, and automatic transmission actuators for automobiles.