Vaisala Oyj

Report Publication Announcement • Mar 8, 2011

Summary of stock exchange releases in 2010

Below is the summary of all the stock exchange releases Vaisala Oyj published in 2010.

The full text stock exchange releases, announcements and press releases are available on the Vaisala web site at

http://www.vaisala.com/newsandmedia/stockexchangereleases/stockexchangerelease 2009.aspx.

Dec 22, 2010	Conversion of unlisted shares series K into series A
Dec 15, 2010	Lauri Rintanen Resigns from Vaisala
Dec 02, 2010	Vaisala to Supply Oman Airports with Comprehensive Weather
	Observation Systems
Nov 15, 2010	Conversion of unlisted shares series K into series A
Nov 12, 2010	Notification of Change in Share of Ownership
Nov 10, 2010	The Schedule for Vaisala Oyj's Financial Information in 2011
Nov 05, 2010	Vaisala Group Interim Report January-September 2010
Oct 29, 2010	Vaisala's January - September (Q3/2010) results published on
	November 5, 2010
Aug 11, 2010	Vaisala Group Interim Report January-June 2010
Aug 02, 2010	Vaisala's January - June (Q2/2010) results published on
	August 11, 2010
Jun 29, 2010	Conversion of unlisted shares series K into series A
Jun 23, 2010	Preliminary information about second quarter net sales and result
	as well as full year result
Jun 17, 2010	Vaisala completes the consultation processes
May 11, 2010	Vaisala cuts costs to improve profitability and competitiveness
May 11, 2010	Vaisala Group interim report January-March 2010
May 03, 2010	Vaisala's January - March (Q1/2010) results published
	on May 11, 2010
May 03, 2010	Appointment in Vaisala's Management Group
Apr 14, 2010	Conversion of unlisted shares series K into series A
Mar 29, 2010	Vaisala has signed a contract to acquire a Canadian life science
	measurement system company
Mar 26, 2010	Decisions made by Vaisala Oyj's Annual General Meeting
Mar 10, 2010	Vaisala's annual report and summary list of 2009 releases
	published Olympics
Feb 22, 2010	Invitation to Vaisala's Annual General Meeting
Feb 19, 2010	Vaisala Group financial report 2009
Feb 12, 2010	Vaisala's 2009 financial results published on 19 February 2010
Feb 11, 2010	Vaisala consolidates activities in the US
Feb 03, 2010	Preliminary information on Vaisala's financial statements
	for year 2009
Jan 26, 2010	Changes in Vaisala's management