HNI CORP

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures are designed to ensure that information required to be disclosed by the Corporation in the reports it files or submits under the Securities Exchange Act of 1934 (the "Exchange Act") is recorded, processed, summarized, and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures are also designed to ensure information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Under the supervision and with the participation of the Chief Executive Officer and Chief Financial Officer of the Corporation, the Corporation’s management carried out an evaluation of the Corporation’s disclosure controls and procedures pursuant to Exchange Act Rules 13a – 15 and 15d – 15. As of April 4, 2026, based on this evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that the Corporation's disclosure controls and procedures are effective.

Changes in Internal Control Over Financial Reporting

There have been no changes in the Corporation’s internal control over financial reporting during the fiscal quarter covered by this quarterly report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, its internal control over financial reporting, except with respect to the internal controls over financial reporting of Steelcase, which was acquired in December 2025, (see "Note 3. Acquisitions and Divestitures" in the Notes to the Condensed Consolidated Financial Statements). In conducting its evaluation of the effectiveness of internal control over financial reporting, the Corporation has elected to exclude Steelcase Inc. from its evaluation as of April 4, 2026, as permitted by the regulations of the Securities and Exchange Commission.

PART II. OTHER INFORMATION