Khao Sat Va Xay Dung NTT Joint Stock Company Address: Zoom 604 Nha N5C, Trung Hoa Urban Area, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101499988 Phone: 0245569965 Representative: Duong Thi Lan Huong Adress: No 35B Hoang Hoa Tham P.Thuy Khue, Tay Ho District, Ha Noi City Nhan Chinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 21 - 6 - 2004