Exhibit

In connection with the Registration Statement on Form S-8 under the Securities Act of 1933 (the “Registration Statement”) relating to the offering of up to 1,200,000 shares of common stock, par value $.375 per share (the “Shares”), of Tennant Company, a Minnesota corporation (the “Company”), pursuant to the Tennant Company 2017 Stock Incentive Plan, I have examined such corporate records and other documents, including the Registration Statement, and have reviewed such matters of law as I have deemed relevant hereto, and, based upon this examination and review, it is my opinion that all necessary corporate action on the part of the Company has been taken to authorize the issuance and sale of the Shares and that, when issued and sold as contemplated in the Registration Statement, the Shares will be legally issued, fully paid and nonassessable under the current laws of the State of Minnesota.