Van Phong Dang Ky Quyen Su Dung Dat Address: Tieu Khu 3, Bac Yen Town, Bac Yen District, Son La Province Enterprise code: 5500523825 Phone: 02123860667 Bac Yen Town, Bac Yen District, Son La ProvinceFounding date: 8 - 9 - 2015