First Bancshares, Inc. operates as the bank holding company for First National Bank that provides financial services to individuals and corporate customers in the United States. The company accepts checking, savings, and individual retirement accounts, as well as certificates of deposit. It also provides personal loans, such as mortgage, home equity, auto, and boat loans; and commercial loans, including commercial real estate, farm line of credit, farm real estate, farm term, line of credit, and term loans, as well as loan services and credit cards.