Dau Tu Thuong Mai Va Dich Vu Vien Thong HTV LTD Address: No 136 Hoang Van Thai, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0102666656 Phone: 0248644070 Representative: Nguyen Trong Lam Adress: Hoang Xa Hamlet, Lien Mac Commune, Tu Liem District, Ha Noi City Khuong Mai Ward, Thanh Xuan District, Ha Noi CityFounding date: 7 - 3 - 2008