```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY 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:       16,259
COMMITMENTS
  12,334      367        0    3,909   15,882   16,243   16,249       16       10

CHANGES FROM 05/18/10 (CHANGE IN OPEN INTEREST:         46)
      15       16        0       31       32       46       48        0       -2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    75.9      2.3      0.0     24.0     97.7     99.9     99.9      0.1      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       4        2        0        8       15       12       17
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
FUTURES ONLY 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:       26,477
COMMITMENTS
  20,619    6,735       12    5,634   19,593   26,265   26,340      212      137

CHANGES FROM 05/18/10 (CHANGE IN OPEN INTEREST:       -146)
     -26     -129        7     -262     -145     -281     -267      135      121

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    77.9     25.4      0.0     21.3     74.0     99.2     99.5      0.8      0.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       8        1        1       13       10       21       12
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY 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:        2,536
COMMITMENTS
   2,353      581        0       30    1,954    2,383    2,535      153        1

CHANGES FROM 05/18/10 (CHANGE IN OPEN INTEREST:          0)
       0        0        0        0        0        0        0        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    92.8     22.9      0.0      1.2     77.1     94.0    100.0      6.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
      19        2        0        1        2       20        4
```

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Updated May 28, 2010