```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/25/10          |
--------------------------------------------------------------| 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:       16,919
COMMITMENTS
  12,404      367        0    4,485   16,549   16,889   16,916       30        3

CHANGES FROM 05/18/10 (CHANGE IN OPEN INTEREST:         60)
      16       16        0       29       46       46       62       14       -2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    73.3      2.2      0.0     26.5     97.8     99.8    100.0      0.2      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       4        2        0        9       16       13       18
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/25/10          |
--------------------------------------------------------------| 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:       31,239
COMMITMENTS
  21,975    6,825      311    8,741   23,966   31,027   31,102      212      137

CHANGES FROM 05/18/10 (CHANGE IN OPEN INTEREST:        -62)
    -216     -241      246     -227     -188     -197     -183      135      121

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    70.3     21.8      1.0     28.0     76.7     99.3     99.6      0.7      0.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       9        2        2       17       14       27       17
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/25/10          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 METRIC TONS CCX C02)             OPEN INTEREST:        3,903
COMMITMENTS
   2,650      448    1,001       35    2,394    3,686    3,842      217       61

CHANGES FROM 05/18/10 (CHANGE IN OPEN INTEREST:         46)
      45        4       -2        1       45       44       47        2       -1

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    67.9     11.5     25.6      0.9     61.3     94.4     98.4      5.6      1.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
      20        2        7        2        2       24        9
```

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Updated May 28, 2010