Do Dac Ban Do Va Tu Van Xay Dung Dong Bac Joint Stock Company Address: Civil Group 7, Khu 1, Ha Khau Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701039029 Phone: 02033839099 Representative: Dinh Van Sam Adress: Civil Group 7, Khu 1, Ha Khau Ward, Ha Long City, Quang Ninh Province Ha Khau Ward, Ha Long City, Quang Ninh ProvinceFounding date: 8 - 1 - 2009