Truyen Thong Hai Ha Joint Stock Company Address: No 67, Do Quang Street, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0105392604 Phone: 02435552172 Representative: Huynh Thi Xuan Lan Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 4 - 7 - 2011