PARK NATIONAL CORP OH

Evaluation of Disclosure Controls and Procedures

With the participation of the Chairman of the Board and Chief Executive Officer (the principal executive officer) and the Chief Financial Officer, Secretary and Treasurer (the principal financial officer) of Park, Park’s management has evaluated the effectiveness of Park’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of September 30, 2024 (the end of the quarterly period covered by this Quarterly Report on Form 10-Q). Based on that evaluation, Park’s Chairman of the Board and Chief Executive Officer and Park’s Chief Financial Officer, Secretary and Treasurer have concluded that:

•information required to be disclosed by Park in this Quarterly Report on Form 10-Q and the other reports that Park files or submits under the Exchange Act would be accumulated and communicated to Park’s management, including its principal executive officer and its principal financial officer, as appropriate to allow timely decisions regarding required disclosure;

•information required to be disclosed by Park in this Quarterly Report on Form 10-Q and the other reports that Park files or submits under the Exchange Act would be recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms; and

•Park’s disclosure controls and procedures were effective as of September 30, 2024 (the end of the quarterly period covered by this Quarterly Report on Form 10-Q).

Changes in Internal Control Over Financial Reporting

There were no changes in Park's internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during Park's fiscal quarter ended September 30, 2024, that have materially affected, or are reasonably likely to materially affect, Park's internal control over financial reporting.