Vien Thong Va Thuong Mai Viet Nam Joint Stock Company Address: No 46 Quan Su, Hang Bong Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101789239 Phone: 0248248646 Representative: Nguyen Phu Long Adress: No 27B, Cat Linh Street, Cat Linh Ward, Dong Da District, Ha Noi City Hang Bong Ward, Hoan Kiem District, Ha Noi CityFounding date: 10 - 10 - 2005