Tieto Oyj - Company Announcement

Tieto Stock Options 2009 B

Tieto Corporation Stock Exchange Release 12 April 2010 at 2.00 pm EET

The share subscription price for Tieto Stock Option 2009 B is EUR 16.87 per
share (the trade volume weighted average quotation of the share on NASDAQ OMX
Helsinki during 11 February-9 April 2010). Each year the dividend is deducted
from the subscription price.

A total of 600 000 new shares or existing shares held by the company can be
subscribed for with Stock Options 2009 B. The share subscription period for
Stock Options 2009 B will be 1 March 2013-31 March 2015.

 The theoretical market value of stock options in Stock Option Plan 2009 B is
EUR 6.78 per stock option. The theoretical market value of the entire stock
option series is thus EUR 4 067 026. The theoretical market value of one stock
option has been calculated using the Black & Scholes stock option pricing model
with the following input factors: share price EUR 16.95, share subscription
price EUR 16.87, risk free interest rate 2.35 %, validity of stock options 4.98
years and volatility 41.99%.

The terms and conditions of the Stock Option Plan 2009 are available at
www.tieto.com.

Tieto announced the Stock Option Plan 2009 on 26 March 2009.


For further information, please contact:

Jukka Karjalainen, Vice President, Compensation & Benefits, tel. +358
40 508 8526

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 <http://www.tieto.com/>

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