OHead office address: Plot No. 20,housing-commercial service complex project, Yet Kieu ward, Ha Long city, Quang Ninh province
Phone: 02033 611793
Fax: 02033 816539
Hotline: 0912 900 058 / 0908 30 1979 / 0984 820 889
Email: hoanganhdt.halong@gmail.com