Independent Assurance Report To the Management of Outokumpu Oyj We have been engaged by the Management of Outokumpu Oyj to perform a limited assurance engagement on the quantitative information on economic, social and environmental responsibility for the period of January 1, 2012 to December 31, 2012, disclosed in the Sustainability section in Outokumpu Oyj's online Annual Report 2012 (hereinafter "Sustainability Reporting").