VOLUME 27 – BULLETIN #023 Chicago Climate Exchange Margin Rate Change.

VOLUME 27 – BULLETIN #023

TO:

ALL CLEARING PARTICIPANTS

FROM:

CLIENT SERVICES AND SUPPORT

DATE:

June 15, 2007

SUBJECT:

Chicago Climate Exchange Margin Rate Change.

The following margin intervals are effective close of business Friday June 15, 2007.

Contract	From	To
March 2007 Sulfur Dioxide	$1475	$1875
Pre-2010 Expirations	$975	$1250
2010 & Later Expirations	$400	$650

Should you have any questions, please call or e-mail one of the following Client Services and Support Representatives:


John Compall	312-786-5795	john.compall@clearingcorp.com
Richard Crilly	312-786-3842	richard.crilly@clearingcorp.com
Marc MacQuarrie	312-786-5732	marc.macquarrie@clearingcorp.com

Client Services and Support Group	312-786-5718

Client Services and Support E-Mail Address		css@clearingcorp.com
Clearing Corporation Web Site		http://www.clearingcorp.com