Tu Van Thiet Ke Va Dau Tu Xay Dung Tien Thanh (Tnhh) Address: No 68 Tieu Khu Dao Son, But Son Town, Hoang Hoa District, Thanh Hoa Province Enterprise code: 2800752429 Phone: 0237865575 Adress: Civil Group 15, Tuong Mai Ward, Hoang Mai District, Ha Noi City But Son Town, Hoang Hoa District, Thanh Hoa ProvinceFounding date: 11 - 8 - 2003