SUBSCRIPTION OF THE SHARES OF THE WARRANTS: VAISALA OYJ


A total of 7 000 Vaisala Oyj's shares have been
subscribed with the A warrants attached to the Vaisala
Oyj Stock Option Plans 1997. The shares will be traded on
the Helsinki Exchanges as old shares as of 22 August
2001. The increase in the share capital has been entered
into the Trade Register 21 August 2001.

Identifiers of Vaisala Oyj's share as of 21 August 2001.

Trading code:                       VAIAS
ISIN code:                          FI0009900682
Number of shares:                   13 831 440