SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 09/02/08                         |
--------------------------------------------------------------| 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:       28,440
COMMITMENTS
  16,870    6,886    4,783    6,554   16,568   28,207   28,237      233      203

CHANGES FROM 08/26/08 (CHANGE IN OPEN INTEREST:     -1,203)
     325    1,037   -1,078     -486   -1,321   -1,239   -1,362       36      159

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    59.3     24.2     16.8     23.0     58.3     99.2     99.3      0.8      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
      14        9        8        8       10       25       24
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 09/02/08                         |
--------------------------------------------------------------| 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:        4,140
COMMITMENTS
   2,617    2,361    1,092        0      630    3,709    4,083      431       57

CHANGES FROM 08/26/08 (CHANGE IN OPEN INTEREST:       -530)
    -447     -245      -86        0     -120     -533     -451        3      -79

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    63.2     57.0     26.4      0.0     15.2     89.6     98.6     10.4      1.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      12        6        7        0        3       16       13
 

Updated September 5, 2008