First Bancshares based in Hattiesburg, Miss., has agreed to buy BCB Holding in Mobile, Ala. First Bancshares will pay about $6.6 million for BCB, assuming BCB's debt and preferred stock issued to the Treasury Department. BCB, the parent of Bay Bank, has four branches and about $80 million in assets. "We are extremely excited and look forward to welcoming Bay Bank to our team," Hoppy Cole, First Bancshares' president and chief executive, said. "We believe it is a great combination of two service oriented community banks and by joining forces, we will improve our market presence in the Mobile area."