The mining area of Cangliangping Branch, Guangxi Longguang Talc Development Co., Ltd. is located in Cangliangping Village, Jizhua Village, Sanmen Town, about 32 km due 45° southwest of Longsheng County seat, with a straight-line distance of approximately 32 km. It is under the jurisdiction of Sanmen Town, Longsheng County.

Geographical coordinates: Longitude: 109°49′54″ E ~ 109°50′02″ E Latitude: 25°36′31″ N ~ 25°36′37″ N

Guangxi Longguang Talc Development Co., Ltd. is a state-owned enterprise. The mineral currently mined by Cangliangping Branch is talc. Underground mining is adopted, with a mining elevation ranging from +575 m to +200 m and a mining area of 0.1451 km². The mining right area is defined by 16 拐点 connected in sequence.

Guangxi Longguang Talc Development Co., Ltd. plans to carry out a technical renovation of Cangliangping Branch. It is proposed to adjust the production scale from the current 35,000 t/a to 20,000 t/a. The mineral type, mining method, mining elevation, mining area and mining right scope shall be consistent with the existing mining license, with only partial adjustment to the development and utilization mode.