Wärtsilä publishes January-March 2007 Interim Report on 4 May 2007 at 8.30 am local time

Wärtsilä Corporation, Stock exchange release 24 April 2007 at 11:00 UTC+2

Wärtsilä Corporation will publish its Interim Report for the period January-March 2007 on Friday 4 May 2007 at 8.30 a.m. Finnish time. The interim report will be available on the company website at www.wartsila.com after publishing.

An analyst and press conference will be held on Friday 4 May 2007 starting at 10.45 a.m. Finnish time (8.45 a.m. UK time) at the Wärtsilä headquarters in Helsinki, Finland. To participate in the teleconference and have the possibility to ask questions, please call: +358 9 8248 6348 and enter the PIN-code 2160. To only listen to the teleconference call the same number and enter PIN-code 390911.

An on-demand version of the conference will be available on the company website later the same day.

www.wartsila.com