Xay Dung Hoang Nam Thang Joint Stock Company Address: Civil Group 6, Khu 3, Hong Ha Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701533118 Phone: 02033612438 Representative: Tran Duy Thang Adress: Civil Group 1, Khu 4, Tran Hung Dao Ward, Ha Long City, Quang Ninh Province Hong Ha Ward, Ha Long City, Quang Ninh ProvinceFounding date: 6 - 10 - 2011