Dau Tu Ha Son Joint Stock Company Address: No 297 Hoang Quoc Viet, Nghia Tan Ward, Cau Giay District, Ha Noi City Enterprise code: 0101524909 Phone: 0248363614 Representative: Do Tien Hiep Adress: No 12, Nghia Tan P.Nghia Tan Street, Cau Giay District, Ha Noi City Nghia Tan Ward, Cau Giay District, Ha Noi CityFounding date: 3 - 9 - 2004