the UNITED NAITONS INDUSTRIAL DEVELOPMNT ORGANIZATION (UNIDO) hereby invites you to submit your written bid for a Long-Term Agreement for provision of environmentally sustainable office paper for copying purposes and related services for UNIDO, UNOV, IAEA and CTBTO at the Vienna International Centre, Austria, on a call-off basis, for an initial Contract period of three (3) years and possibility of yearly extension(s) up to a total period of five (5) years.