Truyen Thong Truc Tuyen Dai Duong LTD Address: No 6, 55 Nguyen Ngoc Nai Lane, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0107768330 Phone: 02463297333 Representative: Nguyen Van Chien Khuong Mai Ward, Thanh Xuan District, Ha Noi CityFounding date: 20 - 3 - 2017