SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 02/26/08          |
--------------------------------------------------------------| 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:       29,366
COMMITMENTS
   8,039    3,403    5,550   15,555   20,357   29,144   29,310      222       56

CHANGES FROM 02/19/08 (CHANGE IN OPEN INTEREST:     -1,367)
    -270     -728      878   -1,832   -1,426   -1,223   -1,276     -143      -91

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.4     11.6     18.9     53.0     69.3     99.2     99.8      0.8      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       9       10       11       12       12       26       28


Updated February 29, 2008