SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/10/08          |
--------------------------------------------------------------| 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:       42,386
COMMITMENTS
  11,006    2,850    4,432   26,686   34,833   42,124   42,115      262      271

CHANGES FROM 06/03/08 (CHANGE IN OPEN INTEREST:        295)
     118      504      271     -130     -538      260      238       36       58

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.0      6.7     10.5     63.0     82.2     99.4     99.4      0.6      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       38)
      13       10       13       15       15       36       30


Updated June 13, 2008