Truyen Thong Tan Vien Joint Stock Company Address: No 18C Mac Thai To, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0107813689 Phone: 0934343637 Representative: Nguyen Van Thanh Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 20 - 4 - 2017