```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 04/06/10                         |
--------------------------------------------------------------| 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:       14,468
COMMITMENTS
  10,763      213        0    3,595   14,153   14,358   14,366      110      102

CHANGES FROM 03/30/10 (CHANGE IN OPEN INTEREST:        128)
      51     -114        0       55      245      106      131       22       -3

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    74.4      1.5      0.0     24.8     97.8     99.2     99.3      0.8      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       6        2        0        8       13       14       15
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
FUTURES ONLY POSITIONS AS OF 04/06/10                         |
--------------------------------------------------------------| 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:       23,467
COMMITMENTS
  19,281    6,869      144    4,013   16,449   23,438   23,462       29        5

CHANGES FROM 03/30/10 (CHANGE IN OPEN INTEREST:     -1,335)
   1,401    1,332   -1,408     -972     -912     -979     -988     -356     -347

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    82.2     29.3      0.6     17.1     70.1     99.9    100.0      0.1      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       5        3        2       10       11       16       15
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 04/06/10                         |
--------------------------------------------------------------| 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:        2,467
COMMITMENTS
   2,245      573        0       51    1,893    2,296    2,466      171        1

CHANGES FROM 03/30/10 (CHANGE IN OPEN INTEREST:         39)
      40       10       -1        0       29       39       38        0        1

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    91.0     23.2      0.0      2.1     76.7     93.1    100.0      6.9      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
      19        2        0        1        2       20        4
```

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Updated April 9, 2010