Ban Quan Ly Du An Duong Thuy Noi Dia Address: 5th Floor, No 4 Ton That Thuyet, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0106185865 Phone: 02435563570 Representative: Pham Van Thong Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 22 - 5 - 2013