Stonesoft - Financial Calendar

STONESOFT'S FINANCIAL REPORTS IN 2011

STONESOFT CORPORATION STOCK EXCHANGE ANNOUNCEMENT 20 DECEMBER 2010 AT 3.00 p.m.

Stonesoft Corporation will release the following financial reports
in 2011:

- March 3, 2011 at 9.15 a.m. Financial Statements 2010
- May 6, 2011 at 9.15 a.m. Interim report January-March 2011
- August 12, 2011 at 9.15 a.m. Interim report January-June 2011
- October 21, 2011 at 9.15 a.m. Interim report January-September 2011

Press conferences for the media, analysts and investors will be held at
Stonesoft main office in Helsinki, Itälahdenkatu 22 A on

- March 3, 2011 at 10.30 a.m. Financial Statements 2010
- May 6, 2011 at 10.30 a.m. Interim Report January-March 2011
- August 12, 2011 at 10.30 a.m. Interim Report January-June 2011
- October 21, 2011 at 10.30 a.m. Interim Report January-September 2011

The Annual General Meeting of the Shareholders of Stonesoft Corporation will be
held on April 13, 2011 at 3.00 p.m.

The Annual Report will be published on week 12 at www.stonesoft.com.

Stonesoft Corporation
Ilkka Hiidenheimo
CEO

More information:
Ilkka Hiidenheimo, CEO
Tel. +358(0)9 476 711
Email: ilkka.hiidenheimo@stonesoft.com

Distribution:
NASDAQ OMX Helsinki Ltd
www.stonesoft.com



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