Dau Tu Va Phat Trien Cong Nghe Dong Bac Joint Stock Company Address: No 43 Nguyen Phong Sac, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0101340443 Phone: 0248778158 Representative: Vu Anh Phong Adress: 90 Nguyen Thai Hoc P.Dien Bien, Ba Dinh District, Ha Noi City Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 14 - 3 - 2003