Tu Van Thiet Ke Xay Dung Va Thuong Mai Thang Long Joint Stock Company Address: No 10, Lane 95/8, Chua Boc Street, Trung Liet Ward, Dong Da District, Ha Noi City Enterprise code: 0103223061 Phone: 02435642666 Representative: Duong Nhu Quynh Adress: No 296 Minh Khai, Minh Khai Ward, Hai Ba Trung District, Ha Noi City Trung Liet Ward, Dong Da District, Ha Noi CityFounding date: 16 - 1 - 2009