Tieto Oyj - Other information disclosed according to the rules of the Exchange

Tieto’s financial calendar 2018

Tieto Corporation   STOCK EXCHANGE RELEASE   16 August 2017, 10.00 am EET

6 February  Interim report 4/2017 and financial
            statements bulletin for 2017 (8.00 am
            EET)
By 28       Annual Report 2017 on Tieto's website
February
22 March    Annual General Meeting

Tieto will publish three interim reports in 2018:

26 April      Interim report 1/2018 (8.00 am EET)
20 July       Interim report 2/2018 (8.00 am EET)
24 October    Interim report 3/2018 (8.00 am EET)

For further information, please contact
Tanja Lounevirta, Head of Investor Relations, tel. +358 50 321 7510,
tanja.lounevirta (at) tieto.com

TIETO CORPORATION

DISTRIBUTION
NASDAQ Helsinki
NASDAQ Stockholm
Principal Media

Tieto aims to capture the significant opportunities of the data-driven world and
turn them into lifelong value for people, business and society. We aim to be
customers’ first choice for business renewal by combining our software and
services capabilities with a strong drive for co-innovation and ecosystems.

Headquartered in Finland, Tieto has over 13 000 experts in close to 20
countries. Tieto’s turnover is approximately EUR 1.5 billion and shares listed
on NASDAQ in Helsinki and Stockholm. www.tieto.com