Tu Van Thiet Ke & Xay Dung Dong Duong Joint Stock Company Address: No 16/55, Hoang Cau Street, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0101347840 Phone: 08404221219 Representative: Do Long Nguyen O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 7 - 4 - 2003