TO:	ALL CLEARING PARTICIPANTS
FROM:	CLIENT SERVICES AND SUPPORT
DATE:	September 10, 2007
SUBJECT:	Chicago Climate Exchange Delivery, Final Settlement, and Option Expiration Dates for September 2007 Contracts

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

Delivery Dates
Product	Code	First Position	First Notice	First Delivery	Last Trade	Last Notice	Last Delivery
Sulfur Dioxide	KS	Sep 17	Sep 18	Sep 19	Sep 28	Oct 1	Oct 2
Nitrogen - Bank	NA	Sep 18	Sep 19	Sep 20	Sep 26	Sep 27	Sep 28
Nitrogen – Vintage 07	NB	Sep 18	Sep 19	Sep 20	Sep 26	Sep 27	Sep 28
Nitrogen – Vintage 08	NC	Sep 18	Sep 19	Sep 20	Sep 26	Sep 27	Sep 28
Nitrogen – Vintage 09	ND	Sep 18	Sep 19	Sep 20	Sep 26	Sep 27	Sep 28

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	Sep 13

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
ECO-Clean Energy Index	WE	Sep 20	Sep 21

The Final Settlement Price (FSP) shall be determined on the third Friday of the contract month. The FSP shall be a special quotation of the ECO - Clean Energy Index based on the opening prices of the component stocks in the index, or on the last sale price of a stock that does not open for trading on the day of the determination of the FSP.

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