- Family: Long March 5
- Length: 53.66 m
- Diameter: 5 m
- Launch Mass: 837 T
- Low Earth Orbit Capacity: 25000 kg
The Long March 5B was manufactured by China Aerospace Science and Technology Corporation with the first launch on 2020-05-05. Long March 5B has 4 successful launches and 0 failed launches with a total of 4 launches. The configuration of the CZ-5B variant consists of the Long March 5 core stage with its four strapped-on liquid-fueled boosters, but the usual second stage will be absent; in place of the second stage would be heavier low earth orbit payloads.
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 Aerospace Science and Technology Corporation is a Government CHN entity that was founded in 1999 and is administered by Chairman & President: Lei Fanpei.
China Aerospace Science and Technology Corporation has 404 successful launches and 13 failed launches with a total of 417 launches.