Xay Dung Va Phat Trien Cong Nghe Dong Son Joint Stock Company Address: Son Du Hamlet, Nguyen Khe Commune, Nguyen Khe Commune, Dong Anh District, Ha Noi City Enterprise code: 0102350998 Phone: 0249685755 Representative: Doan Trong Hieu Adress: Son Du Hamlet, Nguyen Khe Commune, Dong Anh District, Ha Noi City Nguyen Khe Commune, Dong Anh District, Ha Noi CityFounding date: 24 - 8 - 2007