Dau Tu Phat Trien Cong Nghe Truyen Thong Viet Nam LTD Address: No 3, 34a/6 Lane, Tran Phu Street, Dien Bien Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101614831 Phone: 0249427515 Representative: Tran Van Hung Adress: No 5, 136 Au Co P.Tu Lien Lane, Tay Ho District, Ha Noi City Dien Bien Ward, Ba Dinh District, Ha Noi CityFounding date: 8 - 3 - 2005