Dau Tu Phat Trien Dien Tu Vien Thong Joint Stock Company Address: No 8, Alley 35, Lane 167, Phuong Mai Street, Phuong Mai Ward, Dong Da District, Ha Noi City Enterprise code: 0101842852 Phone: 02438689775 Representative: Truong Quoc Luan Adress: P409, Nha A1, Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi City Phuong Mai Ward, Dong Da District, Ha Noi CityFounding date: 22 - 12 - 2005