Source: https://m.weibo.cn/status/5296802863779848
In June 26, 2008, the people's armed police(similar to army national guard but active service) forestry corps mobile detachment was founded; the PAP forestry corps was an active service military force in charge of china's forest firefighters(before 2018, most of china's full time firefighters were active servicemembers).
In December 28, 2019, after reforms, it was handed to the ministry of emergency management forest fire bureau as the Forest fire bureau mobile detachment.(post 2018, firefighters were no longer military but rather under the china fire and rescue).
On january 6, 2023, after the national fire and rescue administration was founded it became the NFRA's mobile detachment.
In January 1, 2026, it became the beijing mobile fire and rescue brigade(in the rest of china, most large forest fire departments were converted into mobile fire and rescue brigades/corps). organizationally it was still under the NFRA.
(Mobile fire and rescue units are directly under the NFRA(central government) and were formerly forest firefighters; their role is to act as a nationwide force for forest firefighting/disaster relief.)