Thuong Mai Du Lich Va Dich Vu Vien Thong Viet Nam Joint Stock Company Address: No 1166, Lang Street, Lang Thuong Ward, Dong Da District, Ha Noi City Enterprise code: 0101726775 Phone: 0988523083 Representative: Nguyen Dinh Thanh Adress: Tram Trai Hamlet, Ninh Xa Commune, Thuan Thanh District, Bac Ninh Province Lang Thuong Ward, Dong Da District, Ha Noi CityFounding date: 22 - 7 - 2005