Dau Tu, Xay Dung Va Thuong Mai Tan Thanh Joint Stock Company Address: Civil Group 5, Khu 7, Hong Ha Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700655106 Phone: 02033834034 Representative: Nguyen Van Yen Adress: Civil Group 5, Khu 1, Ha Trung Ward, Ha Long City, Quang Ninh Province Hong Ha Ward, Ha Long City, Quang Ninh ProvinceFounding date: 17 - 5 - 2007