Tu Van Dau Tu Xay Dung Va Thuong Mai Thang Long Viet Joint Stock Company Address: No 4, Lane 44, Trieu Khuc Street, Thanh Xuan District, Ha Noi City Enterprise code: 0105224060 Phone: 0986948983 Representative: Nguyen Xuan Son Adress: Chan Ky Hamlet, Ung Hoa District, Ha Noi City Thanh Xuan District, Ha Noi CityFounding date: 29 - 3 - 2011