```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/13/10          |
--------------------------------------------------------------| 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:       18,227
COMMITMENTS
  12,389      431       64    5,722   17,709   18,175   18,205       51       22

CHANGES FROM 04/06/10 (CHANGE IN OPEN INTEREST:      3,218)
   1,592      195       41    1,667    3,039    3,300    3,275      -82      -57

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    68.0      2.4      0.4     31.4     97.2     99.7     99.9      0.3      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       6        3        2       10       13       16       18
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/13/10          |
--------------------------------------------------------------| 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:       25,362
COMMITMENTS
  20,715    6,894      175    4,390   18,270   25,280   25,339       82       23

CHANGES FROM 04/06/10 (CHANGE IN OPEN INTEREST:        118)
     846       14     -216     -565      302       65      100       53       18

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    81.7     27.2      0.7     17.3     72.0     99.7     99.9      0.3      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       7        3        2       13       14       21       18
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/13/10          |
--------------------------------------------------------------| 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:        3,966
COMMITMENTS
   2,667      463      995       54    2,450    3,717    3,908      249       59

CHANGES FROM 04/06/10 (CHANGE IN OPEN INTEREST:         -2)
     -11       19        1        0      -22      -10       -2        9        1

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    67.3     11.7     25.1      1.4     61.8     93.7     98.5      6.3      1.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
      20        2        7        2        2       24        9
```

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Updated April 16, 2010