As a reminder, the CME and SIMEX will co-launch their new Mutual Offset System (MOS) after the AM cycle on Thursday, August 24, 2000. This system allows a CME or SIMEX firm to allocate an MOS trade and to have their respective party in Singapore or Chicago accept, reject or modify the trade. More detailed information about the system was provided in the SLG memo that was released on July 21, 2000. The purpose of this memo is to query the firms about two items related to the new MOS system; TREX MQM confirmation records and Auto-Acceptance of transactions. Please respond to the questions listed below and return your completed form via fax or e-mail as noted.

DOES YOUR FIRM WANT TO RECEIVE MOS TREX CONFIRMATION RECORDS? __YES __NO?

If yes, which confirm records do you want? Please specify:

1. __ Confirm Offsets (The SIMEX firm has accepted a CME executed trade).

2. __ CME Confirmations (The CME firm has accepted a SIMEX execution).

3. __ CME Memo Adds (The CME firm has memo added a trade to be allocated to SIMEX That was not "marked" as SIMEX at the time of trade submission.).

4. __ CME Delete (A CME transaction was deleted).

5. __ SIMEX Execute (SIMEX has allocated a pending trade to a CME firm).

WILL YOUR FIRM USE THE AUTO-ACCEPT FEATURE?__YES __ NO

The CME Confirmation�Auto Acceptance Parameters screen allows a firm to specify all of the foreign firms from which they will automatically accept MOS trades. Firms may specify acceptance by foreign account number, first and last time of day, quantity, default account, origin, CTI and Clearing Fee Data.

Firm Name:

Firm Number:

Contact Name:

Contact Phone Number:

Please fax or e-mail this form to: (312) 930-8158 - foweimrin@cme.com

THANK YOU!