Headquarters: 
No. 3, Vien may, Mai dich Ward,  Cau giay District, Ha Noi, VN
Tel: 04.37921330/31/34/35/36
Fax: 04. 37649184

Ha Noi Main Office
 No. 11, Tran Vi Road, Mai dich Ward,  Cau giay District, Ha Noi, VN
Tel: 04.37921330/31/34/35/36
Fax: 04. 37649184