Bac Son LTD Address: No 597, Civil Group 1, Phieng Ban 3, Bac Yen Town, Bac Yen District, Son La Province Enterprise code: 5500195772 Phone: 02123860223 Representative: Do Manh Thang Adress: Tieu Khu 1, Bac Yen Town, Bac Yen District, Son La Province Bac Yen Town, Bac Yen District, Son La ProvinceFounding date: 8 - 8 - 2001