Tu Van Du Hoc Trung Thanh LTD Address: No 6, 17 Huynh Thuc Khang Lane, Lang Ha Ward, Dong Da District, Ha Noi City Enterprise code: 0101435335 Phone: 0247762683; 0247762206 Representative: Nguyen Trung Thanh Adress: Lam Ho Hamlet, Thanh Lam Commune, Me Linh District, Ha Noi City Lang Ha Ward, Dong Da District, Ha Noi CityFounding date: 13 - 1 - 2004