First Financial Corporation is a bank holding company that operates through its subsidiary, First Financial Bank, N.A., serving commercial businesses, agricultural operations, residential homeowners, and retail consumers across five states in the South and Midwest. The bank generates revenue primarily through lending operations including commercial, agricultural, and residential mortgages; consumer loans; and deposit services, while also offering lease financing and trust services. First Financial operates a network of full-service branches and loan production offices, maintains adjustable-rate mortgages in its portfolio while selling substantially all long-term fixed-rate mortgages to secondary market purchasers, and competes with other financial institutions including commercial banks, mutual savings banks, and credit unions throughout its geographic footprint.