Head office: 871 Ngo Gia Tu Str., Long Bien Dist., Hanoi, Vietnam
Tel/Fax: 84-4 38271269
Email: sopha@hn.vnn.vn
Website: deltagroupvn.com

Business office:
53/51 Lang Yen Str,. Hai Ba Trung,. Hanoi, Vietnam
Tel: 84-4 39843008, 39843768
Fax: 84-4 39843769; E-mail: delta.tqt@hn.vnn.vn