NASDAQ OMX HELSINKI RELEASE 2 SEPTEMBER 2010 SUSPENSION OF TRADING: STORA ENSO OYJ Trading in the shares of Stora Enso Oyj and the warrants related to Stora Enso Oyj was suspended on the NASDAQ OMX Helsinki today at 10.46 a.m. by the decision of NASDAQ OMX Helsinki. Company will publish announcement later. NASDAQ OMX Helsinki, Issuer Surveillance, survo@nasdaqomx.com, +358 9 6166 7260