PKV: SUBSCRIPTION OF THE SHARES OF THE WARRANTS: VAISALA OYJ

| Source: Vaisala Oyj Vaisala Oyj

HELSINKI EXCHANGES                  TRADING NEWS PKV63/2003
Securities Trading                  25 March 2003
 
A total of 35 000 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 26 March 2003.
 
Identifiers of Vaisala Oyj's share as of 26 March 2003.
 
Trading code: VAIAS
ISIN code: FI0009900682
Number of shares: 14 056 215