Tin Hoc Va Truyen Thong 3 G Joint Stock Company Address: 306 B8, Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0103259283 Phone: 02438546091 Representative: Do Thi Hong Van Adress: P103 C20, Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi City Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi CityFounding date: 9 - 2 - 2009