CORPORATE EVENTS: Hercules Incorporated (HPC)

ACTION: On November 5, 2008, Shareholders of Hercules Incorporated (“HPC”) voted concerning the proposed merger with Ashland Inc. (“ASH”). The merger was approved and subsequently consummated on November 13, 2008. As a result, each existing HPC Common Share will be converted into the right to receive .093 ASH Common Shares plus $18.60 cash. Cash will be paid in lieu of fractional ASH shares.

 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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