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.
Nusantara Dua is a high throughput communications satellite built by CAST for Indonesian satellite operator PT Pasifik Satelit Nusantara. It will replace the Palapa D satellite. Nusantara Dua will provide broadband internet and broadcasting access to users in Indonesia, as well as some regions of Asia-Pacific and Australia.