Anticipated adjustment of OMXH25 Index due to extraordinary dividend in Wärtsilä Oyj

The board of Wärtsilä Oyj (Wärtsilä) has proposed that the Annual General
Meeting (AGM) on March 19, 2008 approves an extra dividend of EUR 2.00.
Provided that the AGM approves the proposal, Wärtsilä B (FI0009003727) will be
adjusted in OMXH25 index of payment of extra dividends of total EUR 2.00 per
share. Adjustment will be performed effective from start on the Ex-day, March
20, by subtraction of EUR 2.00 from the closing price on the bank day before
the Ex-day. The adjustment is made according to rule 8.8 in the “Index
description of OMXH25 Stock Index”. 

The board of Wärtsilä has also proposed that the company's two share series
should be combined into one. The number of shares used in the OMXH25 index will
remain the same until the next quarterly review.