United Nations Industrial Development Organization (UNIDO) in Hanoi City Office of the Mission : Green One UN House, 304 Kim Ma Street, Ba Dinh District, Hanoi City, Vietnam Working hours : Monday to Friday, 08:00 -12:00 | 13:00 -17:00 Phone : (024) 3822 4490 Fax : (024) 3942 2484 Email : office.vietnam@unido.