On September 25, 2008, Shareholders of Wm. Wrigley Jr. Company (“WWY”) voted concerning the proposed merger with Mars, Incorporated. The merger was approved and subsequently consummated on October 6, 2008. As a result, each existing WWY Common Share will be converted into the right to receive $80.00 net cash per share.

This action will be coordinated with the Options Clearing Corporation.

If you have any questions regarding the information provided in the document, please call CME Clearing risk management hotline at (312) 648-3888.

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