Dau Tu Dong Au Joint Stock Company Address: 4th Floor, No 63, Hoang Cau Street, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0305380772 Phone: 02439447779 Representative: Tong Truong Son O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 24 - 12 - 2007