Tranche Update on Great Southern Bancorp, Inc.'s Equity Buyback Plan announced on December 21, 2022.

Great Southern Bancorp, Inc. is a bank holding company of Great Southern Bank (the Bank). The Company conducts its business as a financial holding company. Through the Bank and subsidiaries of the Bank, the Company primarily offers a variety of banking and banking-related services. The Bank offers a range of banking services through its 89 banking centers located in southern and central Missouri; the Kansas City, Missouri area; the St. Louis area; eastern Kansas; northwestern Arkansas; the Minneapolis area and eastern, western and central Iowa. The Company operates through a single segment, banking operation. The banking operation segment is principally engaged in the business of originating residential and commercial real estate loans, construction loans, commercial business loans and consumer loans and funding these loans by attracting deposits from the general public, accepting brokered deposits and borrowing from the Federal Home Loan Bank and others.