Vien Thong Thien An LTD Address: No 53 Tue Tinh, Bui Thi Xuan Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101208036 Phone: 0249762862 Representative: Nguyen Duc Hieu Adress: Dao Ngan Hamlet, Quang Chau Commune, Viet Yen District, Bac Giang Province Bui Thi Xuan Ward, Hai Ba Trung District, Ha Noi CityFounding date: 7 - 2 - 2002