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We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the Southside Bancshares, Inc. 2025 Incentive Plan of our reports dated February 27, 2025, with respect to the consolidated financial statements of Southside Bancshares, Inc. and the effectiveness of internal control over financial reporting of Southside Bancshares, Inc., included in its Annual Report (Form 10-K) for the year ended December 31, 2024, filed with the Securities and Exchange Commission.