CORPORATE EVENT: Schering-Plough Corporation ("SGP") - Effective Wednesday, November 4, 2009

On August 7, 2009, Shareholders of Schering-Plough Corporation (“SGP”) voted concerning the proposed merger with Merck & Co., Inc. (“MRK”). The merger was approved and will become automatically effective after the close of business on November 3, 2009. As a result, each existing SGP Common Share will be converted into the right to receive .5767 (New) MRK Common Shares and $10.50 Cash. Cash will be paid in lieu of fractional MRK shares.

This action will be coordinated with the Options Clearing Corporation.

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