Dau Tu Xay Dung Va Thuong Mai Ngoc Son LTD Address: Civil Group 43, Cluster 7, Phu Thuong Ward, Tay Ho District, Ha Noi City Enterprise code: 0102184116 Phone: 0245333303 Representative: Le Tuan Anh Adress: No 12, 1 Tay Son Lane, Quang Trung Ward, Dong Da District, Ha Noi City Phu Thuong Ward, Tay Ho District, Ha Noi CityFounding date: 10 - 10 - 2009