Xi Nghiep Tham Do Khai Thac Va Che Bien Khoang San Yen Bai Address: Nam Co Commune, Mu Cang Chai District, Yen Bai Province Enterprise code: 0100991682-003 Phone: 02166412455 Representative: Vu Cong Minh Adress: Zoom 702, No 2 Ban Dao Linh Dam, Hoang Mai District, Ha Noi City Nam Co Commune, Mu Cang Chai District, Yen Bai ProvinceFounding date: 17 - 8 - 2005