Dear CME Globex Customers,

Effective this Friday, June 2, 2006, CME Live Cattle Serial Month futures and futures spreads (i.e., the odd-numbered months January, March, May, July, September, and November) will be delisted at the close of trading at 3:15 p.m. Central time, from both the CME Globex and trading floor.

The following products are not affected:

• CME Live Cattle futures (i.e., the even-numbered months February, April, June, August, October and December)
• Options on futures
  • The underlying futures for all listed CME Live Cattle options are the even-numbered month futures.

If you have any questions or concerns about this product change, please contact John Harangody at 312.466-4437; or your CME Globex Account Manager at 312.634.8700; or in Europe at +44.207.623.2550.

Thank you,

CME