Truong Son Address: Thang Loi Civil Group, Duong Noi Ward, Ha Dong District, Ha Noi City Enterprise code: 0500431621 Phone: 02433845404 Representative: Nguyen Xuan Huy Adress: Quyet Tam Civil Group, Duong Noi Ward, Ha Dong District, Ha Noi City Duong Noi Ward, Ha Dong District, Ha Noi CityFounding date: 20 - 12 - 2002