Dau Tu Xay Dung Va Phat Trien Cong Nghe Joint Stock Company Address: No 147, Phan Dang Luu Street, Yen Vien Commune, Gia Lam District, Ha Noi City Enterprise code: 0101774867 Phone: 0248781479 Representative: Le Thi Ha Thuong Adress: Civil Group 3, Viet Hung Ward, Long Bien District, Ha Noi City Yen Vien Town, Gia Lam District, Ha Noi CityFounding date: 19 - 9 - 2005