Duong Ha Joint Stock Company Address: No 3, Alley 64/57, Vu Trong Phung Street, Thanh Xuan Trung Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101579369 Phone: 0913359202 Representative: Duong Xuan Hung Adress: Cong Ty Xay Lap Dien 1 Town, Van Mo Ward, Ha Dong District, Ha Noi City Thanh Xuan Trung Ward, Thanh Xuan District, Ha Noi CityFounding date: 10 - 12 - 2004