Dau Tu He Thong Truyen Thong - Cong Nghe Thong Tin Viet Nam LTD Address: No 158, Nguyen An Ninh Street, Tuong Mai Ward, Hoang Mai District, Ha Noi City Enterprise code: 0102575134 Phone: 0242910436 Representative: Hoang Quyet Chien Adress: Than Ai Hamlet, Quynh Phuong Commune, Quynh Luu District, Nghe An Province Tuong Mai Ward, Hoang Mai District, Ha Noi CityFounding date: 25 - 12 - 2007