SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 01/29/08                         |
--------------------------------------------------------------| 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:       13,092
COMMITMENTS
   6,329    1,644      244    5,997   11,169   12,570   13,057      522       35

CHANGES FROM 01/22/08 (CHANGE IN OPEN INTEREST:        691)
     263      -83      -11      -37      776      215      682      476        9

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    48.3     12.6      1.9     45.8     85.3     96.0     99.7      4.0      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       8        9        6       11       11       21       24
 

Updated February 1, 2008