Vaisala's annual report and summary list of 2010 releases published

Vaisala Corporation        Stock exchange release                        March 8, 2011 1.30 p.m. Vaisala's Annual Report and Financial Report for 2010 have been published in English and Finnish. The online Annual Report is available online atwww.vaisala.com/annualreport. The Financial Report can be ordered in print at forms.vaisala.com/forms/publicationorder. In addition, Vaisala has published the 2010 Corporate Governance Statement and the summary of 2010 stock exchange releases. These documents are available at www.vaisala.com/en/investors/corporategovernance/Pages/default.aspx. Further information: Liisa Ahtiluoto, Communications Manager, tel. +358 9 8949 2725, emailliisa.ahtiluoto@vaisala.com Attachments: * Vaisala Financial Report 2010 * Summary of Vaisala stock exchange releases in 2010 Distribution: NASDAQ OMX Helsinki Major media Financial Statements 2010: http://hugin.info/3120/R/1495330/431137.pdf Summary of 2010 releases: http://hugin.info/3120/R/1495330/431125.pdf This announcement is distributed by Thomson Reuters on behalf of Thomson Reuters clients. The owner of this announcement warrants that: (i) the releases contained herein are protected by copyright and other applicable laws; and (ii) they are solely responsible for the content, accuracy and originality of the information contained therein. Source: Vaisala Oyj via Thomson Reuters ONE [HUG#1495330]