Dau Tu Xay Dung Ha Tang Hong Ha Joint Stock Company Address: 102, B4 To 23, Khuong Trung Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101660669 Phone: 0249106935 Representative: Hoang Van Hau Adress: No 6, 103/283 Tran Khat Chan Alley, Hai Ba Trung District, Ha Noi City Khuong Trung Ward, Thanh Xuan District, Ha Noi CityFounding date: 1 - 6 - 2005