Thuong Mai Hoang Son LTD Address: Zoom 104, C2 So 34a, Tran Phu Street, Dien Bien Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101319434 Phone: 0247335388 Dien Bien Ward, Ba Dinh District, Ha Noi CityFounding date: 31 - 12 - 2002