Dau Tu Thuong Mai Hoang Yen Joint Stock Company Address: Civil Group 33, Khu 5, Ha Khanh Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701631098 Phone: 0973886788 Representative: Vu Thi Yen Ha Khanh Ward, Ha Long City, Quang Ninh ProvinceFounding date: 24 - 5 - 2012