Thiet Bi Truyen Thong Viet Nam Joint Stock Company Address: No 3a To Hien Thanh, Bui Thi Xuan Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101499794 Phone: 0249426677 Representative: Nguyen Quang Thuan Adress: No 7, 15 Khoi 30 Street, Phuc Xa Ward, Ba Dinh District, Ha Noi City Bui Thi Xuan Ward, Hai Ba Trung District, Ha Noi CityFounding date: 21 - 6 - 2004