Tieto Corporation Stock Exchange Announcement 7 July 2009 10.00 AM EET Tieto will publish its interim report for 1 January - 30 June 2009 on Friday 17 July at 8.00 am EET (7.00 am CET, 6.00 am UK time). Press conference for analysts and media will be held, at Tieto's premises in Helsinki, address: Aku Korhosen tie 2-6, at 10.00 am EET (9.00 am CET, 8.00 am UK time). The results will be presented in English by Hannu Syrjälä, President and CEO. Notification of attendance to sirpa.salo@tieto.com, tel. +358 2072 68714. The conference will be webcasted and published live on Tieto's website www.tieto.com and there will be a possibility to present questions on-line. An on-demand video will be available after the conference. Conference call hosted by the management starting at 2.00 pm EET (1.00 pm CET, 12.00 am UK time), will also be available as live audio webcast at www.tieto.com. Callers may access the conference directly at the following telephone numbers: US callers +1 866 966 5335, non-US callers +44 203 023 4402, no code. Lines are to be reserved ten minutes before the start of conference call. An on-demand audiocast of the conference will also be published on Tieto's website later during the day. A replay will be available until 24 July 2009 in the following numbers: US callers: +1 866 583 1035, non-US callers: +44 208 196 1998, access code: 141833#. Tieto publishes financial information in English, Finnish and Swedish. All releases are posted in full on Tieto's website as soon as they are published. For further information, please contact: Tanja Lounevirta, Director, Financial Communications, tel. +358 2072 68713, +358 50 321 7510, tanja.lounevirta@tieto.com. TIETO CORPORATION DISTRIBUTION NASDAQ OMX Helsinki NASDAQ OMX Stockholm Principal Media Tieto is an IT service company providing IT, R&D and consulting services. With approximately 16 000 experts, we are among the leading IT service companies in Northern Europe and the global leader in selected segments. We specialize in areas where we have the deepest understanding of our customers' businesses and needs. Our superior customer centricity and Nordic expertise set us apart from our competitors. www.tieto.com