GEOSENTRIC OYJ STOCK EXCHANGE RELEASE April 22, 2010 at 12.00 CORRECTION TO INVITATION TO ANNUAL GENERAL MEETING There was an incorrect date in the invitation to the Annual General Meeting published by GeoSentric Oyj today at 9.00 am for the registration of nominee registered shares in the temporary shareholders' register. The date announced in the invitation release was May 12, 2010. The correct date is May 10, 2010. In its corrected form the last paragraph of the invitation to the Annual General meeting goes as follows: A holder of nominee registered shares is advised to request without delay necessary instructions regarding the registration in the shareholder's register of the company, the issuing of proxy documents and registration for the Annual General Meeting from his/her custodian bank. The account management organization of the custodian bank will register a holder of nominee registered shares, who wants to participate in the meeting, to be temporarily entered into the shareholders' register of the company at the latest on May 10, 2010 by 10.00 a.m. GEOSENTRIC OYJ Board of Directors Distribution: NASDAQ OMX Helsinki Principal news media