Thuong Mai Va Quang Cao Tri An LTD Address: No 49, Dao Duy Tu Street, Hang Buom Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101331939 Phone: 0249282288 Hang Buom Ward, Hoan Kiem District, Ha Noi CityFounding date: 17 - 2 - 2003