Southside Bancshares, Inc. announced that the Company has delivered a redemption notice to Wilmington Trust, National Association, as trustee (the “Trustee”), to give notice of redemption as of August 24, 2021 to each holder of the Company's outstanding 5.50% Fixed-to-Floating Rate Subordinated Notes due 2026 (the “Notes”) in the aggregate principal amount of $100 million with a redemption date of September 30, 2021 (the “Redemption Date”). The Notes will be redeemed in full at 100% of the principal amount plus any accrued and unpaid interest up to, but excluding, the Redemption Date. Interest on the Notes will cease to accrue on and after the Redemption Date. The Notes were issued pursuant to the Subordinated Indenture, dated as of September 19, 2016, between the Company and the Trustee, and as supplemented by the First Supplemental Indenture relating to the Notes, dated as of September 19, 2016, between the Company and the Trustee.