SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 01/29/08          |
--------------------------------------------------------------| 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:       22,061
COMMITMENTS
   6,328    3,059    3,171   12,041   15,796   21,539   22,026      522       35

CHANGES FROM 01/22/08 (CHANGE IN OPEN INTEREST:      2,302)
     238    1,080      266    1,322    1,155    1,826    2,501      476     -198

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    28.7     13.9     14.4     54.6     71.6     97.6     99.8      2.4      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
      10        9       11       12       11       27       26


Updated February 1, 2008