Thuong Mai Va Phat Trien Tin Hoc Hoang Ha LTD Address: No 84 Civil Group 21, Minh Khai Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101507533 Phone: 0248635562 Representative: Le Quang Thai Adress: No 84 Civil Group 21, Minh Khai Ward, Hai Ba Trung District, Ha Noi City Minh Khai Ward, Hai Ba Trung District, Ha Noi CityFounding date: 14 - 7 - 2004