Vaisala Oyj Stock Exchange Announcement 22.3.2007, at 18:15 1(1) Decisions made by Vaisala Oyj's Annual General Meeting The Annual General Meeting of Vaisala Oyj decided on March 22, 2007 to approve the Company's annual accounts for 2006. The dividend will be EUR 0.85 per share. Dividend The Annual General Meeting decided that a dividend of EUR 0.85 per share, corresponding to the total of EUR 15,477,831.90 will be distributed for the financial year 2006. Dividend is not paid to the A-shares that are held by Vaisala Oyj. The record date for dividend payment is March 27, 2007 and dividend will be paid on April 3, 2007. Discharge from liability The Annual General Meeting granted the Members of the Board of Directors and the Company's President and CEO discharge from liability for the accounts. The Members of the Board of Directors It was decided that the Board of Directors will consist of six members. Yrjö Neuvo, Ph.D., who was to retire by rotation was re-elected for three years. Maija Torkko, B.Sc. (Economics) and LL.M, was elected as a new member of the Board. Auditors PricewaterhouseCoopers Oy and Mr. Hannu Pellinen APA were chosen as the Company's Authorized Public Accountants. Board of Directors remuneration The Annual General Meeting decided to increase the annual remuneration of the Board of Directors. The new annual remuneration is: chairman 30 000 euros, and a member 20 000 euros. The meeting of the Board of Directors Raimo Voipio, M.Sc.(Eng.) will continue as Chairman of the Board of Directors and Yrjö Neuvo, Ph.D will continue as Vice-Chairman. Maija Torkko, B.Sc. (Economics) and LL.M, Mikko Niinivaara, M.Sc.(Eng.), Mikko Voipio, M.Sc.(Eng.) and Dr. Stig Gustavson will be the Members of the Board of Directors. Further information: Jouni Lintunen, CFO +358 9 8949 2215 or +358 40 579 0181 Vaisala Oyj Distribution: Helsinki Exchanges