Xay Dung Tien Thanh Address: Tieu Khu 1, Yen Chau Town, Yen Chau District, Son La Province Enterprise code: 5500213936 Phone: 02123841188 Representative: Bui Van Tien Adress: Tieu Khu 1, Yen Chau Town, Yen Chau District, Son La Province Yen Chau Town, Yen Chau District, Son La ProvinceFounding date: 30 - 10 - 2003