Tien Son LTD Address: P6, C2 Tap The Truong Dinh, Tuong Mai Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101057901 Phone: 0249741210 Representative: Dang Ngoc Son Adress: P6, C2 Tap The Truong Dinh, Tuong Mai Ward, Hoang Mai District, Ha Noi City Tuong Mai Ward, Hoang Mai District, Ha Noi CityFounding date: 5 - 10 - 2000