Dau Tu Va Xay Lap Vien Thong Joint Stock Company Address: No 163/97, Thai Thinh Street, Thinh Quang Ward, Dong Da District, Ha Noi City Enterprise code: 0101918893 Phone: 0245623852 Representative: Phan Thi Tam Adress: 163 /97, Thai Thinh Street, Thinh Quang Ward, Dong Da District, Ha Noi City Thinh Quang Ward, Dong Da District, Ha Noi CityFounding date: 20 - 4 - 2006