SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE                                          Code-006261
Commitments of Traders - Futures Only, March 18, 2008                  
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     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
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     :          : (CONTRACTS OF 25 U.S. EPA SO2 EMMISSION                                    :
     :          :                                                                            :
All  :    27,310:     9,677      4,393        982     16,449     21,571     27,108     26,946:       202        364
Old  :    27,310:     9,677      4,393        982     16,449     21,571     27,108     26,946:       202        364
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 11, 2008                       :
     :     3,019:       151      1,676        122      2,685      1,000      2,958      2,798:        61        221
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      35.4       16.1        3.6       60.2       79.0       99.3       98.7:       0.7        1.3
Old  :     100.0:      35.4       16.1        3.6       60.2       79.0       99.3       98.7:       0.7        1.3
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        30:         9          8          8         11         12         24         24:
Old  :        30:         9          8          8         11         12         24         24:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 65.2       77.9       85.9       88.2       37.9       44.6       48.0       50.9
Old  :                 65.2       77.9       85.9       88.2       37.9       44.6       48.0       50.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
 

Updated March 21, 2008