TO:	ALL CLEARING PARTICIPANTS
FROM:	CLIENT SERVICES AND SUPPORT
DATE:	October 4, 2007
SUBJECT:	Chicago Climate Exchange Delivery, Final Settlement, and Option Expiration Dates for October 2007 Contracts

Listed below are the relevant delivery and expiration dates for the Chicago Climate Exchange October 2007 contracts.

Delivery Dates
Product	Code	First Position	First Notice	First Delivery	Last Trade	Last Notice	Last Delivery
Sulfur Dioxide	KS	Oct 18	Oct 19	Oct 22	Oct 31	Nov 1	Nov 2
Nitrogen-OS - Bank	NA	Oct 19	Oct 22	Oct 23	Oct 29	Oct 30	Oct 31
Nitrogen-OS – V07	NB	Oct 19	Oct 22	Oct 23	Oct 29	Oct 30	Oct 31
Nitrogen-OS – V08	NC	Oct 19	Oct 22	Oct 23	Oct 29	Oct 30	Oct 31
Nitrogen-OS – V09	ND	Oct 19	Oct 22	Oct 23	Oct 29	Oct 30	Oct 31

To help promote error free delivery processing, the Clearing Corporation requires all tender quantities be confirmed before the tender record will be included in delivery processing for assignment. The confirmation is performed using the Tender Confirmation screen in OTIS®. Clearing Participants are reminded of the importance of verifying this information before confirming their tender records.

Option Expiration Dates
Product	Code	Expiration
Sulfur Dioxide	KS	Oct 16

The deadline to submit at the money, out of the money exercise requests and cancellation of in the money exercises is 5:00 p.m. on expiration day.  Clearing Participants that need to verify their authorization code for special exercise requests should contact CSS. All exercise activity is performed using the Option Exercise Entry and Option Exercise Inquiry selections in Position Management.

Cash Settle/Expiration Dates
Product	Code	Last Trade	Cash Settle / Expiration
CER – Certified Emissions	WR	Oct 29	Oct 29
ECFI – European Carbon Financial Instrument	KE	Oct 29	Oct 29

CCFE will post final settlement price at 11:00 a.m. Central Time, on last trading day. CCorp will expire all positions on last trading day using this final settlement price.

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