Dau Tu Xay Dung Tong Hop Va Phat Trien Ha Son Joint Stock Company Address: No 22, 1 Hoang Quoc Viet Lane, Nghia Do Ward, Cau Giay District, Ha Noi City Enterprise code: 0101332668 Phone: 0247645011 Representative: Luong Van Hau Adress: Khu 5, Minh Phuong Ward, Viet Tri City, Phu Tho Province Nghia Do Ward, Cau Giay District, Ha Noi CityFounding date: 18 - 2 - 2003