Headquarters: No. 19, Alley 61 Hoang Cau, O Cho Dua Ward, Dong Da District, Hanoi
Tel: 024 353 77463 - 0964 287 966
Ho Chi Minh Branch: No. 76 Cach Mang Thang Tam Street, Ward 6, District 3, HCMC
Tel: 028 352 00039 - 0964 835 266
Da Nang Branch: 245A/8 Be Van Dan, Hoa Khe Ward, DN
Tel: 0935 039 943
Website: hdn.com.vn
Email: hdn@hdn.com.vn
Business Registration Number: 0101905830 by Hanoi Department of Planning and Investment on 04/04/2006
Representative: Nguyen Huu Nam