The 1st Mobile Contingent is a corps leader grade[1] formation of China's People's Armed Police (PAP).
It was formed in 2017-2018 during PAP reforms[2] from units previously subordinated to PAP mobile divisions.
[3] Mobile contingents are rapid response formations[4] tasked with internal stability, wartime support, and maritime rights protection missions.
[5] The 1st Mobile Contingent is likely specifically tasked with reinforcing internal security forces in Beijing.
[1]