Dau Tu Xay Dung Va Thuong Mai Hoang Tien Joint Stock Company Address: Lot 4, Moi Quarter, Co Bi Street, Co Bi Commune, Gia Lam District, Ha Noi City Enterprise code: 0103974734 Phone: 02436762599 Representative: Trinh Quang Son Co Bi Commune, Gia Lam District, Ha Noi CityFounding date: 19 - 6 - 2009