Tu Van Tin Hoc Va Vien Thong Ha Noi Joint Stock Company Address: 30 Phan Ke Binh, Cong Vi Ward, Cong Vi Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101204881 Phone: 0247628777 Representative: Nguyen Duc Adress: No 105/4, Quan Thanh Street, Quan Thanh Ward, Ba Dinh District, Ha Noi City Cong Vi Ward, Ba Dinh District, Ha Noi CityFounding date: 29 - 1 - 2002