Open invitation to tender, deadline 17.11.2013, for UPS (Uninterrupted Power Supply) maintenance on the Blue, Yellow, Green and Red Lines of the Lisbon metro. Contract value EUR300,000, excluding VAT, duration 36 months after award. Contact Metropolitano de Lisboa, Lisbon, web http://www.saphety.com/solucoes/contratacao-publica-electronica. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=342987-2013. 43/13.