Dien Tu Vien Thong Tin Hoc Huyen Quang Joint Stock Company Address: No 3, 102/71 Hoang Dao Thanh Alley, 15B Civil Group, Ha Dinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0105847594 Phone: 02485857687 Representative: Nguyen Manh Cuong Ha Dinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 6 - 4 - 2012