FIRST FINANCIAL CORP /IN/

Certain statements contained in this report, which are not statements of historical fact, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements include, but are not limited to, certain plans, expectations, goals, projections, and benefits relating to the proposed merger between FFC and First Illinois, which are subject to numerous assumptions, risks and uncertainties. Words such as ‘‘believes,’’ ‘‘anticipates,’’ “may,” “will,” “should,” “likely,” “expected,” “estimated,” ‘‘intends,’’ “future,” “plan,” “goal,” “seek,” “project,” or the negative of these terms and other similar expressions may identify forward-looking statements, but are not the exclusive means of identifying such statements. Please refer to FFC’s Annual Report on Form 10-K for the year ended December 31, 2025, as well as its other filings with the SEC, for a more detailed discussion of risks, uncertainties, and factors that could cause actual results to differ from those discussed in the forward-looking statements. FFC intends that such forward-looking statements be subject to the safe harbors created by Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, except as may be required by applicable law. Investors and security holders may obtain free copies of FFC’s SEC filings without charge at the SEC’s website at https://www.sec.gov or under the “Investor Relations” section of FFC’s website at https://investor.first-online.bank.

Forward-looking statements are not historical facts but instead express only management’s beliefs regarding future results or events, many of which, by their nature, are inherently uncertain and outside of management’s control. It is possible that actual results and outcomes may differ, possibly materially, from the anticipated results or outcomes indicated in these forward-looking statements. In addition to factors previously disclosed in reports filed by FFC with the

SEC, risks and uncertainties for FFC, First Illinois, and the combined company include, but are not limited to: the possibility that any of the anticipated benefits of the proposed merger will not be realized or will not be realized within the expected time period; the risk that integration of First Illinois’ operations with those of FFC and First Financial Bank will be materially delayed or will be more costly or difficult than expected; the inability to close the proposed merger in a timely manner; the inability to complete the proposed merger due to the failure of First Illinois’ stockholders to adopt and approve the merger agreement; diversion of management's attention from ongoing business operations and opportunities; the failure to satisfy other conditions to completion of the proposed merger, including receipt of required regulatory and other approvals; the failure of the proposed merger to close for any other reason; the challenges of integrating and retaining key employees; the effect of the announcement of the proposed merger on FFC’s, First Financial Bank’s, First Illinois’, Hickory Point Bank’s, or the combined company's respective customer and employee relationships, operating results, or market price; the possibility that the proposed merger may be more expensive to complete than anticipated, including as a result of unexpected or unknown factors, events, or liabilities; potential litigation or regulatory action related to the proposed merger; and general competitive, economic, political and market conditions, and fluctuations. All forward-looking statements included in this report are made as of the date hereof and are based on information available at the time of this report. Except as required by law, neither FFC nor First Illinois assumes any obligation to update any forward-looking statement.

Additional information regarding the risks and uncertainties that could affect future results of FFC and First Illinois can be found in FFC’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025, its Quarterly Reports on Form 10-Q for the periods ended March 31 and June 30, 2026, and other filings with the SEC, available free of charge on the SEC’s website atwww.sec.gov.

Annualized, pro forma, projected, and estimated numbers in this document are used for illustrative purposes only, are not forecasts and may not reflect actual results.