Vaisala - Company Announcement

Conversion of unlisted shares series K into series A

Vaisala Oyj                       Stock
Exchange Release                              19.11.2009 at
12.00



Vaisala Oyj's 1400 unlisted shares (series K) have been converted
into listed shares (series A). The conversion has been registered in
the Finnish Trade Register November 11, 2009. Listing of the new
series A shares has been applied for as of November 20, 2009.


Further information:
Jouni Lintunen, CFO, tel. +358 9 8949 2215 or +358 40 5790181

Vaisala Oyj



Distribution:
Helsinki Exchanges