We are in the process of updating our CME Clearing House and Client Management email servers. This action is being taken as a result of the increased number of “undeliverable” email notifications that we have received in recent weeks.

To ensure that we have the most up-to-date email addresses for all of our clearing firms, we are requesting that each Back Office Manager email us atjperun@cme.comby Friday, September 1, 2006, with a list of valid email addresses for those recipients who want to continue receiving CME Clearing-related correspondence.

Contact Jackie Perun at 312/930-3421 if you have any questions concerning this notice. Thank you for your cooperation!