Dau Tu Phat Trien Ha Tang Vien Thong Quoc Te Joint Stock Company Address: No 359, Cau Giay Street, Dich Vong Ward, Cau Giay District, Ha Noi City Enterprise code: 0101369026 Phone: 0248338632 Representative: Nguyen Thi Thanh Adress: Phu My Hamlet, My Dinh Commune, Tu Liem District, Ha Noi City Dich Vong Ward, Cau Giay District, Ha Noi CityFounding date: 2 - 6 - 2003