Tu Van Dau Tu Khao Sat Thiet Ke Xay Dung Joint Stock Company Address: No 135 C9B, To Hieu Street, Nghia Tan Ward, Cau Giay District, Ha Noi City Enterprise code: 0101612834 Phone: 0248363781 Representative: Le Van Long Adress: No 30/64, Le Trong Tan Street, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Nghia Tan Ward, Cau Giay District, Ha Noi CityFounding date: 3 - 3 - 2005