Vaisala - Other information disclosed according to the rules of the Exchange

US tax reform will affect Vaisala

Vaisala Corporation
Stock Exchange Release
December 27, 2017 at 6:00 p.m. (EET)

US tax reform will affect Vaisala

Vaisala estimates that the tax reform, which was signed into law on December
22, 2017, and which lowers the corporate tax rate down from the current 35% to
21% from the beginning of the tax year 2018, will have a favorable effect on
Vaisala's effective tax rate.

In 2017, the change will decrease Vaisala's deferred tax asset. According to a
preliminary estimation, Vaisala will report a decrease in deferred tax asset of
approximately EUR 2.4 million in the full-year 2017 results and a corresponding
deferred tax expense in the income statement. The change in the deferred tax
asset will not have any effect on cash flow nor on the time period when the
deferred tax asset is expected to be utilized.


For further information, please contact:
Kaarina Muurinen, CFO
Tel. +358 40 577 5066

Distribution
Nasdaq Helsinki
Key media
www.vaisala.com

Vaisala is a global leader in environmental and industrial measurement. Building
on over 80 years of experience, Vaisala provides observations for a better
world. We are a reliable partner for customers around the world, offering a
comprehensive range of innovative observation and measurement products and
services. Headquartered in Finland, Vaisala employs approximately 1,600
professionals worldwide and is listed on the Nasdaq Helsinki stock exchange.
www.vaisala.com  www.twitter.com/VaisalaGroup

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