Hop Tac Xa Dong Thanh Address: Khu 2, Cao Thang Street, Cao Thang Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700104571 Phone: 02143825712 Representative: Pham Tien Hong Adress: 6 Khu 8 Civil Group, Cao Thang Ward, Ha Long City, Quang Ninh Province Cao Thang Ward, Ha Long City, Quang Ninh ProvinceFounding date: 4 - 9 - 1998