Vaisala - Changes board/management/auditors

Appointment in Vaisala's management group

Vaisala Oyj                         Stock exchange release
                    20 November 2009 at 09.00 am




John Jiang has been appointed President of Vaisala China and a member
of Vaisala's strategic management group starting January 1, 2010.

John Jiang joins Vaisala from FKI, a major international industrial
investment group, where he has worked as China Managing Director. In
FKI, he was in charge of overseeing all the operations of the China
headquarters. Before FKI, John Jiang has worked in several general
manager or senior business consultant positions for international
companies in China.

John Jiang holds a Ph.D. degree in mechanical and aerospace
engineering from Case Western Reserve University in Cleveland, Ohio,
US. Additionally he received MBA training from the same university.

Further information:

Kjell Forsén
President and CEO
Tel. +358 400 757 948

Helena Marjaranta
Senior Vice President, Communications
Tel. +358 40 581 9102

Distribution:
NASDAQ OMX Helsinki, main media