Tieto Oyj - Corporate Action

Change in Tieto's holding of own shares

Tieto Corporation Stock Exchange Release 29 December 2010 11.00 am EET

On 29 December, 2010 a total of 3 600 Tieto's shares were returned free of
consideration to the company. The transaction is related to the company's Share
Ownership Plan 2006-2008. The shares were conveyed in connection with the reward
payment of earning period 2008 and are now returned due to the fact that the
terms regarding service conditions of the holders were not fully met.

The company now holds a total of 553 700 own shares.

For further information, please contact:
Jyrki Ivars, Vice President, Compensation & Benefits, Human Resources, tel.
+358 40 519 2659

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 17 000 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 expertise in digital services set us
apart from our competitors.
www.tieto.com



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