Bemis Provides Update on Status of Pending Alcan Packaging Food Americas Acquisition

NEENAH, Wis.—Dec 29, 2009—Bemis Co., Inc. (NYSE: BMS), today announced that it is involved in discussions with the staff of the Department of Justice regarding their review, under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, of Bemis' pending acquisition of the Food Americas operations of Alcan Packaging, a business unit of international mining group Rio Tinto plc (LON: RIO; ASX: RIO). These discussions include remedies which management believes would resolve the concerns expressed by the Department of Justice about the transaction.