William Barron and Susan Knust have each notified First Financial Bancorp (the ?Company?) of their decisions to retire as directors of the Company effective at the end of their current terms. Accordingly, Mr. Barron and Mrs. Knust will not stand for re-election at the Company?s 2024 Annual Meeting of Shareholders to be held on May 28, 2024. Neither Mr. Barron?s nor Mrs. Knust?s decisions to retire are the result of any disagreement with management or Board of Directors on any matters relating to the Company?s operations or practices.