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Consent of Independent Registered Public Accounting Firm

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We consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-170651) of our report dated December 10, 2025, with respect to the financial statements and supplemental schedule of Southern Bank 401(k) Retirement Plan included in this Annual Report on Form 11-K for the year ended June 30, 2025.

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/sig/ Forvis Mazars, LLP

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St. Louis, Missouri

December 10, 2025