```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 08/10/10                         |
--------------------------------------------------------------| 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:       17,103
COMMITMENTS
  12,244        0        0    4,836   17,070   17,080   17,070       23       33

CHANGES FROM 08/03/10 (CHANGE IN OPEN INTEREST:          0)
       0      -33        0      -10        0      -10      -33       10       33

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    71.6      0.0      0.0     28.3     99.8     99.9     99.8      0.1      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       4        0        0        7       13       11       13
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
FUTURES ONLY POSITIONS AS OF 08/10/10                         |
--------------------------------------------------------------| 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:       19,880
COMMITMENTS
  14,419       81       26    5,396   19,773   19,841   19,880       39        0

CHANGES FROM 08/03/10 (CHANGE IN OPEN INTEREST:        223)
     277        0      -36      -27      263      214      227        9       -4

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    72.5      0.4      0.1     27.1     99.5     99.8    100.0      0.2      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       9        1        1       12       11       21       13
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 08/10/10                         |
--------------------------------------------------------------| 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:        2,405
COMMITMENTS
   2,266      454        0        0    1,950    2,266    2,404      139        1

CHANGES FROM 08/03/10 (CHANGE IN OPEN INTEREST:         -2)
       0        0        0        0        0        0        0       -2       -2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    94.2     18.9      0.0      0.0     81.1     94.2    100.0      5.8      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      18        2        0        0        2       18        4
```

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Updated August 13, 2010