Wärtsilä’s Interim Report January to June 2009 to be published 22 July 2009 at 8.30 a.m. local time

Wärtsilä Corporation, Stock exchange release 7 July 2009 at 11:00 UTC+2

Wärtsilä Corporation will publish its Interim Report for the period January-June 2009 on Wednesday 22 July 2009 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 the same date, Wednesday 22 July 2009, 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 please call: +44 (0)207 1620 177 and enter the Conference ID: 838853. If you want to ask questions during the teleconference, press the number 1 on your phone to register for a question and the # -key to withdraw a question. The event title for the call is: Results Q2 2009. Please be ready to state your details and the name of the conference to the operator. If problems occur, please press the *-button followed by the 0-button. We would recommend that you would register to the conference in advance at the following address:
https://eventreg2.conferencing.com/webportal3/reg.html?Acc=783899&Conf=199233.

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

www.wartsila.com