Exhibit 99.1 FOR IMMEDIATE SouthState Corporation Reports First Quarter 2024 Results RELEASE Media Contact Declares Quarterly Cash Dividend Jackie Smith, 803.231.3486 WINTER HAVEN, FL – April 25, 2024 – SouthState Corporation (NYSE: SSB) today released its unaudited results of operations and other financial information for the three-month period ended March 31, 2024. “In the midst of a transition year for the US economy, SouthState produced first quarter revenue and earnings per share in line with our guida ...