Tieto Oyj - Company Announcement

Tieto Stock Options 2009 C

Tieto Corporation STOCK EXCHANGE RELEASE 12 April 2011, 9.30 am EET

The share subscription price for Tieto Stock Option 2009 C is EUR 12.91 per
share (the trade volume weighted average quotation of the share on NASDAQ OMX
Helsinki during 11 February - 10 April 2011). 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 C. The share subscription period for
Stock Options 2009 C will be 1 March 2014-31 March 2016.

The theoretical market value of stock options in the Stock Option Plan 2009 C is
EUR 5.19/stock option. The theoretical market value of the entire stock option
series is thus EUR 3 113 779. 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 12.80, share subscription price EUR
12.91, risk free interest rate 2.92 %, validity of stock options 4.98 years and
volatility 42.05%.

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:

Jyrki Ivars, Vice President, Compensation & Benefits, jyrki.ivars(at)tieto.com

TIETO CORPORATION

DISTRIBUTION
NASDAQ OMX Helsinki
NASDAQ OMX Stockholm
Principal Media

Tieto is the leading IT service company in Northern Europe providing IT and
product engineering services. Our highly specialized IT solutions and services
complemented by a strong technology platform create tangible business benefits
for our local and global customers. As a trusted transformation partner, we are
close to our customers and understand their unique needs. With more than 17 000
experts, we aim to become a leading service integrator creating the best service
experience in IT. www.tieto.com






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