Thuong Mai Va Phat Trien Tin Hoc Thanh Long LTD Address: 93 Dang Van Ngu, Phuong Lien Ward, Dong Da District, Ha Noi City Enterprise code: 0101235706 Phone: 0245729018 Representative: Hoang Duc Thanh Adress: No 20, 1B Hamlet, Co Nhue Commune, Tu Liem District, Ha Noi City Phuong Lien Ward, Dong Da District, Ha Noi CityFounding date: 9 - 5 - 2002