Exhibit 99.1 SouthState Bank Corporation Reports First Quarter 2026 Results Declares Quarterly Cash Dividend FOR IMMEDIATE RELEASE Media Contact Jackie Smith, 803.231.3486 WINTER HAVEN, FL – April 23, 2026 – SouthState Bank Corporation ("SouthState" or the "Company") (NYSE: SSB) today released its unaudited results of operations and other financial information for the three-month period ended March 31, 2026. "SouthState opened the year with strong momentum, posting solid balance sheet growth, record pipelin ...