Tu Van Thiet Ke Xay Dung 18.1 Joint Stock Company Address: Nha N1a, Nguyen Tuan Street, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101692678 Phone: 0945690128 Representative: Nguyen Huy Hoang Adress: No 15, Hang Ngang Street, Hang Dao Ward, Hoan Kiem District, Ha Noi City Nhan Chinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 29 - 6 - 2005