Dau Tu Cong Thanh Joint Stock Company Address: 3B Civil Group, Khu 1, Hung Thang Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701061313 Phone: 02033847058 Representative: Nguyen Thi May Adress: 3B Civil Group, Khu 1, Hung Thang Ward, Ha Long City, Quang Ninh Province Hung Thang Ward, Ha Long City, Quang Ninh ProvinceFounding date: 23 - 2 - 2009