SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 02/19/08                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 25 U.S. EPA SO2 EMMISSION              OPEN INTEREST:       20,812
COMMITMENTS
   8,151    1,858    1,824   10,472   16,983   20,447   20,665      365      147

CHANGES FROM 02/12/08 (CHANGE IN OPEN INTEREST:      2,260)
      78     -296      126    1,974    2,471    2,178    2,301       82      -41

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    39.2      8.9      8.8     50.3     81.6     98.2     99.3      1.8      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
      11        7        7       11       11       23       24
 

Updated February 22, 2008