Hoang Long General Services Company Limited (Công ty TNHH Dịch vụ Tổng hợp Hoàng Long)
No B16 - TT8 - Van Quan Urban Area
Van Quan Ward- Ha Dong District
Hanoi
Vietnam
Phone: (+84) 24 2264 5566
Mobile: (+84) 985 136 669
e-mail: hologecompany(at)gmail.com