Rome, 22 March 2011 – Standard & Poor’s has today confirmed Acea SpA’s long-term “A” and short-term “A-1” ratings, with a negative outlook, reflecting both its solid business and strong cash flows and financial position.

Acea is currently one of a small group of European companies to receive ratings from three Agencies (the other two are Moody’s and Fitch) in the single “A” bracket.