Thuong Mai Dich Vu Vien Thong Viet Tien LTD Address: 174 Le Trong Tan, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0102658253 Phone: 0245656810 Representative: Dang Thi Phi Nga Adress: No 186 Ton Duc Thang, Hang Bot Ward, Dong Da District, Ha Noi City Khuong Mai Ward, Thanh Xuan District, Ha Noi CityFounding date: 4 - 3 - 2008