Vaisala Oyj Stock Exchange Release 12.11.2007 at 18.15 (Finnish Time) Vaisala has decided to outsource some of Vaisala Measurement Systems' production and reorganize the division's research and development function in North America. The goal is to improve efficiency and flexibility, and to concentrate efforts on the core competencies, such as application knowledge. The financial impact is estimated to be an annual improvement of 2 millions of euros in the division's results, as of fiscal year 2008. The outsourcing and the reorganization will affect the Thunderstorm Systems and Windprofiler businesses. As a result, 14 persons are made redundant. Plans are to carry out the the measures before the year end 2007 and they are expected to reduce the demand for labor by approximately 15 productive labor years. Because of the rationalization measures there will be a cost provision of approximately EUR 0.3 million in this year's results. For more information please contact: Erkki Järvinen, Director, Vaisala Measurement Systems tel +358 40 5491 891 Jouni Lintunen, CFO, tel +358 40 5790 181 Vaisala Oyj Distribution: Nordic Stock Exchange Finnish news agency Major media