Dien Tu Thang Long 812 LTD Address: No 65, Lane 443, Nguyen Trai Street, Thanh Xuan Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101122195 Phone: 0248546500 Thanh Xuan District, Ha Noi CityFounding date: 16 - 5 - 2001