Stora Enso Oyj Stock Exchange Release 1 June 2007 at 9.00 GMT Stora Enso has changed the duration of its closed period. From now on, the closed period will start immediately after a reporting period ends and last until the results are announced. Stora Enso will therefore not comment or meet capital market representatives or the media during the closed period. During the closed period, insiders are not allowed to trade in the Company's securities. Until now the closed period lasted two weeks. Stora Enso's closed period before announcement of the second quarter results will start on Monday 2 July 2007. For further information, please contact: Keith B Russell, Senior Vice President, Investor Relations, tel. +44 7775 788 659 Ulla Paajanen-Sainio, Vice President, Investor Relations and Financial Communications, tel. +358 2046 21242 www.storaenso.com www.storaenso.com/investors STORA ENSO OYJ p.p. Jussi Siitonen Leena Bergqvist