Dau Tu Xay Dung Va Thuong Mai Dang Khoa Joint Stock Company Address: Dong Lau Hamlet, Hoan Son Commune, Tien Du District, Bac Ninh Province Enterprise code: 2300641713 Phone: 0972644283 Representative: Phi Quang Hoanh Adress: Lien De Hamlet, Tan Lieu Commune, Yen Dung District, Bac Giang Province Hoan Son Commune, Tien Du District, Bac Ninh ProvinceFounding date: 20 - 4 - 2011