Du Lich, Dich Vu Va Thuong Mai Dai Duong Xanh LTD Address: No 14, Gia Ngu Street, Hang Bac Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101399768 Phone: 0248264335 Hang Bac Ward, Hoan Kiem District, Ha Noi CityFounding date: 10 - 9 - 2003