Dien Tu- Tin Hoc- Vien Thong Minh Son LTD Address: No 6, Lane 10, Huong Vien Street, Dong Nhan Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101051730 Phone: 0248216333 Dong Nhan Ward, Hai Ba Trung District, Ha Noi CityFounding date: 15 - 9 - 2000