Tu Van Quan Ly Va Dao Tao Thang Long LTD Address: No 23, Lane 178, Tay Son Street, Trung Liet Ward, Dong Da District, Ha Noi City Enterprise code: 0104061021 Phone: 0978571387 Representative: Vo Xuan Hoai Adress: Phan Hien Hamlet, Vinh Son Commune, Vinh Linh District, Quang Tri Province Trung Liet Ward, Dong Da District, Ha Noi CityFounding date: 21 - 7 - 2009