 Columbia Bank MHC, Columbia Financial, Inc. CLBK and Columbia Bank collectively, Columbia, announced today that Columbia has completed its acquisition of RSB Bancorp, MHC, RSB Bancorp, Inc. and Roselle Bank collectively, Roselle. At the effective time of the merger, Roselle Bank was merged with and into Columbia Bank and depositors of Roselle Bank became depositors of Columbia Bank, with the same rights and privileges in Columbia Bank MHC as if their accounts had been established in Columbia Bank on the date established at Roselle Bank. 