The China Aerospace Science and Technology Corporation (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.
China's second space station, Tiangong-2 is tasked to verify key technologies such as cargo transportation, on-orbit propellant resupply, and a medium-term stay of astronauts. It will also carry an array of scientific experiments, and will be equipped with a robotic arm to help the assembly and maintenance of the station.