SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 03/04/08                         |
--------------------------------------------------------------| 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:       20,820
COMMITMENTS
   9,493    2,849      658   10,590   17,292   20,741   20,799       79       21

CHANGES FROM 02/26/08 (CHANGE IN OPEN INTEREST:      1,288)
     759      779   -1,116    1,788    1,660    1,431    1,323     -143      -35

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    45.6     13.7      3.2     50.9     83.1     99.6     99.9      0.4      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
      10        7        5       11       10       22       21
 

Updated March 7, 2008