Tuantung Address: Tieu Khu Iii, Bac Yen Town, Bac Yen District, Son La Province Enterprise code: 5500394055 Phone: 02123860046 Representative: Pham Van Manh Adress: TK Iii, Bac Yen Town, Bac Yen District, Son La Province Bac Yen Town, Bac Yen District, Son La ProvinceFounding date: 23 - 3 - 2010