Tu Van Khao Sat Thiet Ke Va Dau Tu Xay Dung Joint Stock Company Address: No E10pc, Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101355390 Phone: 0248546861 Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi CityFounding date: 28 - 4 - 2003