Hoang Nam Address: No 107, Tieu Khu 2, Bac Yen Town, Bac Yen District, Son La Province Enterprise code: 5500193863 Phone: 02123860088 Representative: Hoang Ngoc Minh Adress: No 107, Tieu Khu 2, Bac Yen Town, Bac Yen District, Son La Province Bac Yen Town, Bac Yen District, Son La ProvinceFounding date: 29 - 10 - 2001