Vaisala Corporation Stock exchange release January 25, 2012 at 12 p.m.



Vaisala has published the summary of 2011 stock exchange releases. The document is available at www.vaisala.com/en/investors/corporategovernance.



Further information:
Liisa Ahtiluoto, Communications Manager, tel. +358 9 8949 2725, email liisa.ahtiluoto@vaisala.com


Attachment:
Summary of Vaisala stock exchange releases in 2011


Distribution:
NASDAQ OMX Helsinki

Vaisala summary of 2011 releases:
http://hugin.info/3120/R/1579955/493227.pdf


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(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#1579955