Tibet	Tibet	Lancang, Yunna
Lancang, Yunnan	Underground drilling	Underground drilling
Boka, Yunnan	Minqin, Gansu	Xingyi, Guizhou
Dacaidan, Qinghai	Xiahe, Gansu	Nimu, Tibet
Erlianhaote, Inner-Mongolia	Geermu, Qinghai	Yitong, Jilin