TENNANT CO 10-Q

Item 4. Controls and Procedures Disclosure Controls and Procedures Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures as of March 31, 2026 (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”)). Based on that evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our management, including our principal executive and our principal financial officers, as appropriate, to allow timely decisions regarding required disclosure. Changes in Internal Controls There were no changes in our internal control over financial reporting during the fiscal quarter ended March 31, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. PART II – OTHER INFORMATION Item 1. Legal Proceedings Refer to Note 17, Commitments and Contingencies , to the Consolidated Financial Statements in the Company’s Form 10-K for information regarding the Company’s legal proceedings. There have been no material developments in any legal proceedings that require reporting in this Form 10-Q. Item 1A. Risk Factors We documented our risk factors in Item 1A of Part I of our annual report on Form 10-K for the year ended December 31, 2025. There have been no material changes to our risk factors since the filing of that report. 32 Table of Contents