Dau Tu Phat Trien Ha Tang Joint Stock Company Address: Civil Group 63, Khu Diem Thuy, Cam Dong Ward, Cam Pha City, Quang Ninh Province Enterprise code: 5700470708 Phone: 02032227168 Representative: Do Nguyen Hong Adress: Civil Group 1, Hong Ha Ward, Ha Long City, Quang Ninh Province Cam Dong Ward, Cam Pha City, Quang Ninh ProvinceFounding date: 20 - 11 - 2003