SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED 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:       30,732
COMMITMENTS
   8,309    4,131    4,672   17,386   21,783   30,367   30,585      365      147

CHANGES FROM 02/12/08 (CHANGE IN OPEN INTEREST:      2,944)
     115     -447      840    1,909    2,592    2,864    2,985       81      -41

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.0     13.4     15.2     56.6     70.9     98.8     99.5      1.2      0.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
      11        8       11       12       12       26       28


Updated February 22, 2008