Dau Tu Khai Han Joint Stock Company Address: Khach San Van Xuan To 01, Khu 05, Bai Chay Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701628923 Phone: 02033848893 Representative: Tran Xuan Hung Adress: No 02, Civil Group 20, Khu 2a, Cao Xanh Ward, Ha Long City, Quang Ninh Province Bai Chay Ward, Ha Long City, Quang Ninh ProvinceFounding date: 16 - 5 - 2012