CentiSpace-1 S5 and S6 are Chinese commercial small satellites by Beijing-based company Future Navigation for providing GNSS augmentation signals services from LEO. They are precursors to a planned 160 satellites constellation.
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.INFO WIKI