Cong Nghe Vien Thong Quoc Gia Joint Stock Company Address: No 102/a3 Dam Trau, Bach Dang Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0102386137 Phone: 02462913986 Representative: Tran Van Dang Adress: P604 - H1, Do Thi Viet Hung, Giang Bien Ward, Long Bien District, Ha Noi City Bach Dang Ward, Hai Ba Trung District, Ha Noi CityFounding date: 12 - 10 - 2007