Dong Bac - XN Khai Thac Khong San Address: Tan Huong Commune, Pho Yen Town, Thai Nguyen Province Enterprise code: 4600205905 Phone: 02148863097 Representative: Nguyen Thang Loi Adress: Tan Huong Commune, Pho Yen Town, Thai Nguyen Province Tan Huong Ward, Pho Yen City, Thai Nguyen ProvinceFounding date: 24 - 8 - 1999