15th Fl. Viet A Tower, Duy Tan St., Dich Vong Hau Ward, Cau Giay Dist., Hanoi, Vietnam
Phone : +(84.4) 3795 7346
Mobile : +84 12 9900 0078
Email Address : gns.hn@gnsvn.vn
5th Fl. Green Country B/D, #1, 81 St., Tan Quy Ward, Dist.7, HCMC, Vietnam
Phone : +(84.8) 6298 9945
Mobile : +84 98 658 9692
Email Address : gns@gnsvn.vn