Stock exchange release 17.12.2008 at 12.00 Appointment in Vaisala's management group Kimmo Korplela, M.Sc.econ, has been appointed Senior Vice President, Group Business Development, and member of the Management Group, starting January 7,2009. Kimmo Korpela joins Vaisala from 3i venture capital and private equity company, where he has worked for eight years in various positions. His last position was Director in the Stockholm office of 3i Nordic Plc. Tapio Engström, the current Group Business Development Director, resigns from Vaisala. Further information Kjell Forsén, President and CEO, tel. +358 400 757948 Distribution: OMX Nordic Exchange Helsinki Main media