PONSSE OYJ STOCK EXCHANGE RELEASE 21 DECEMBER, 3:45 P.M. PONSSE TO ACQUIRE TREASURY SHARES Ponsse's Board of Directors decided to acquire treasury shares according to the authorisation granted by the Annual General Meeting on 12 April 2007. The share acquisition will start on 28 December 2007 at the earliest. The shares will be acquired in public trading on the Helsinki Stock Exchange at the market price valid at the time of purchase. Treasury shares can be acquired for the purpose of financing and implementing potential acquisitions, other business arrangements or investments, developing the company's equity structure, as part of the implementation of an incentive scheme in the company or its subsidiaries, or otherwise for further assignment or annulment. Vieremä 21 December 2007 PONSSE OYJ Juha Vidgrén Vice Chairman of Ponsse Oyj's Board of Directors FURTHER INFORMATION Juha Vidgrén, tel. +358 40 730 0047 DISTRIBUTION OMX Nordic Exchange Helsinki Principal media www.ponsse.com