Tin Hoc Vien Thong Ha Noi Joint Stock Company Address: No 229 Xuan Thuy, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0102174044 Phone: 0242150619 Representative: Phan Thi Hanh Adress: Civil Group 2, Yen Hoa Ward, Cau Giay District, Ha Noi City Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 2 - 3 - 2007