The China Aerospace Science and Technology Corporation (中國航天科技集團公司)(CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.

Along with space and defence manufacture, CASC also produces a number of high-end civilian products such as machinery, chemicals, communications equipment, transportation equipment, computers, medical care products and environmental protection equipment. CASC provides commercial launch services to the international market and is one of the world's most advanced organizations in the development and deployment of high energy propellant technology, strap-on boosters, and launching multiple satellites atop a single rocket. The corporation has registered capital of 1.1 billion U.S. dollars and employs 110 000 people.