Conversion of unlisted shares series K into series A

| Source: Vaisala Oyj Vaisala Oyj

Vaisala Oyj Stock Exchange Announcement 28.12.2005 at 9.00       1(1)
 
Vaisala Oyj's 3000 unlisted shares (series K) have been converted into listed shares (series A). The conversion has been registered in the Finnish Trade Register December 28, 2005. Listing of the new series A shares has been applied for as of December 29, 2005.
 
 
Further information:
Tapio Engström, CFO            
+358 9 8949 2215 or  +358 400 716 732
 
Vaisala Oyj
 
 
 
Distribution:
Helsinki Exchanges