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.
Satellite failure confirmed by Chinese media. The launch vehicle does not seem to be responsible, per current information.
Added launch per NOTAMs. Trajectory is consistent with 55 deg. inclination, could be Beidou replenishments navigation satellites but drop zones/launch time not a good match.