```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 08/17/10                         |
--------------------------------------------------------------| 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:       17,104
COMMITMENTS
  12,244        0        0    4,831   17,070   17,075   17,070       29       34

CHANGES FROM 08/10/10 (CHANGE IN OPEN INTEREST:          1)
       0        0        0       -5        0       -5        0        6        1

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    71.6      0.0      0.0     28.2     99.8     99.8     99.8      0.2      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 08/17/10                         |
--------------------------------------------------------------| 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:       20,037
COMMITMENTS
  14,534       81       22    5,444   19,934   20,000   20,037       37        0

CHANGES FROM 08/10/10 (CHANGE IN OPEN INTEREST:        157)
     115        0       -4       48      161      159      157       -2        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    72.5      0.4      0.1     27.2     99.5     99.8    100.0      0.2      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       9        1        1       13       10       22       12
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 08/17/10                         |
--------------------------------------------------------------| 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:        2,411
COMMITMENTS
   2,266      448        0        0    1,956    2,266    2,404      145        7

CHANGES FROM 08/10/10 (CHANGE IN OPEN INTEREST:          6)
       0       -6        0        0        6        0        0        6        6

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    94.0     18.6      0.0      0.0     81.1     94.0     99.7      6.0      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      18        2        0        0        2       18        4
```

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Updated August 20, 2010