Stora Enso is upgrading board quality at its Imatra mills

Stora Enso Oyj Stock Exchange Release 4 July 2007 at 12.00 GMT Stora Enso is investing EUR 15 million to upgrade board manufacturing at its Imatra mills in Finland to meet customers' developing quality requirements. The project is scheduled to start in July 2007 and be completed in September 2008. As a consequence of this quality-driven investment, the annual production capacity of board machine 5 will increase from 240 000 to 250 000 tonnes of liquid packaging board (LPB). "We are very pleased to announce this investment, which demonstrates Stora Enso's unceasing commitment to quality improvement. This investment will secure Imatra's long-term competitiveness in liquid packaging board and enable the mill to satisfy its customers' increasing quality demands", says Anders Harbäck, Vice President of Liquid Packaging Boards Ambient. Stora Enso's Imatra mills, which have a total annual production capacity of 1.1 million tonnes, produce packaging board, graphical board and paper. Liquid packaging boards are manufactured for all the main types of liquid packaging. End uses of Stora Enso LPB include a great variety of food products such as milk, soup, spices, water, yoghurt and juice, as well as various non-food products such as liquid detergents and fabric softeners. For further information, please contact: Anders Harbäck, VP, Liquid Packaging Boards Ambient, tel. +46 1046 54045 Kari Vainio, EVP, Corporate Communications, tel. +44 7799 348 197 Keith Russell, SVP, 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