SUBSCRIPTION OF THE SHARES OF THE WARRANTS: VAISALA OYJ


HELSINKI EXCHANGES                  TRADING NEWS PKV69/2003
Securities Trading                  31 March 2003
                           
A total of 7 000 Vaisala Oyj's A shares have been subscribed with the 1997 A warrants of Vaisala Oyj. The shares will be traded on the Helsinki Exchanges as old shares as of 1 April 2003.
 
Identifiers of Vaisala Oyj's share as of 1 April 2003.
 
Trading code: VAIAS
ISIN code: FI0009900682
Number of shares: 14 063 215