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Tennant Company to Focus on Innovation, Not Litigation

  Tennant Company to Focus on Innovation, Not Litigation

          Company Stands Behind Its Chemical-free ec-H2O™ Technology

Business Wire

MINNEAPOLIS -- September 20, 2013

Tennant Company (NYSE: TNC), a world leader in designing, manufacturing and
marketing solutions that help create a cleaner, safer, healthier world said
today that it has withdrawn its appeal of the June 2013 German court decision
in Kärcher’s lawsuit regarding the wording used in advertisements of Tennant
Company’s proprietary ec-H2O™ technology, a chemical-free cleaning technology
based on the well-known process of electrolysis.

“Tennant Company has not altered its position that the decision of the German
court is, respectfully, based on incomplete and inaccurate information,” said
Heidi Wilson, Tennant Company General Counsel and Secretary. “The withdrawal
is for purely commercial reasons as the case was primarily about advertising
claims that are no longer being used by Tennant,” Wilson continued.

“Tennant maintains that the two laboratory bench tests performed by the
court-appointed advisor were seriously flawed. The first test had no
applicability to Tennant’s ec-H2O chemical-free technology as the test is
typically used to measure properties in traditional chemical cleaners. The
second bench test, which involved a soil of concentrated fats, has little
correlation to cleaning with any scrubber-dryer, regardless of the cleaning
solution being used,” explained Wilson.

“There is no standard for performance testing in our industry. Real-world
operation remains the test that truly matters and our customers are the true
judges of performance,” Wilson continued.

“Tennant customers who have chosen to effectively clean their facilities with
reduced chemical usage are satisfied with the performance of ec-H2O. And for
those who wish to see results for themselves, we invite them to a free
demonstration of ec-H2O performance on their facility’s specific soils,” said
Chris Killingstad, President and CEO of Tennant Company.

Tennant Company continues to stand behind its ec-H2O technology based on
extensive internal and external tests and the experiences of customers who
have years of experience cleaning with ec-H2O, according to Killingstad.

“As a leading innovator in our industry, Tennant Company has chosen to invest
its resources in the continued innovation and launch of additional sustainable
cleaning technologies that clean effectively, reduce the use of chemicals,
improve customer productivity and enhance operator safety,” said Killingstad.

Tennant Company introduced its proprietary ec-H2O technology in 2008. ec-H2O
is based on the established process of electrolysis. The U.S. Patent office
has issued more than 800 patents for water electrolysis, several of which
belong to Tennant Company. Tennant ec-H2O customers include many of the
world’s largest and most successful professional cleaning and facility service
providers. As of the end of 2012, Tennant had more than 4,000 ec-H2O customers
across the globe, 40,000 ec-H2O scrubbers in the marketplace and $444 million
(USD) cumulative ec-H2O sales. For more information, please go to
www.ec-h2ofacts.com .

About Tennant Company

Minneapolis-based Tennant Company (NYSE: TNC) is a world leader in designing,
manufacturing and marketing solutions that help create a cleaner, safer,
healthier world. Its products include equipment for maintaining surfaces in
industrial, commercial and outdoor environments; chemical-free and other
sustainable cleaning technologies; and coatings for protecting, repairing and
upgrading surfaces. Tennant's global field service network is the most
extensive in the industry. Tennant has manufacturing operations in
Minneapolis, Minn.; Holland, Mich.; Louisville, Ky.; Uden, The Netherlands;
the United Kingdom; São Paulo, Brazil; and Shanghai, China; and sells products
directly in 15 countries and through distributors in more than 80 countries.
For more information, visit www.tennantco.com.

Contact:

Tennant Company
Investor Contact:
Tom Paulson, 763-540-1204
Vice President and Chief Financial Officer
or
Media Contact:
Kathryn Lovik, 763-540-1212
Global Communications Director