Thuong Mai & Dich Vu Ngoc Son LTD Address: No 16 Nguyen Thuong Hien, Nguyen Du Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101137018 Phone: 0249123108 Representative: Le Thanh Son Adress: C4, 411 Quynh Mai, Quan Hai Ba Trung, Hai Ba Trung District, Ha Noi City Nguyen Du Ward, Hai Ba Trung District, Ha Noi CityFounding date: 27 - 6 - 2001