Cong Nghe Thong Tin & Thuong Mai Truong Son LTD Address: No 5 C8a Nam Thanh Cong, Lang Ha Ward, Dong Da District, Ha Noi City Enterprise code: 0101167735 Phone: 0245183859 Lang Ha Ward, Dong Da District, Ha Noi CityFounding date: 11 - 10 - 2001