October 4, 2007

Dear Valued Metals Customers,

As a result of customer demand, the CME Group metals complex will continue to trade on eCBOT through June 2008. Details of a longer term solution will be provided at a later date.

We will continue to fully support the trading, clearing, marketing and customer support for the 100 oz. gold, mini-sized gold, 5,000 oz. silver and mini-sized silver futures and options on futures contracts.

CME Group is the only exchange to offer a straight-thru clearing platform through its electronic vault receipt program as well as to provide for directed fungibility of its mini-sized gold and silver futures contracts with its full-size counterparts.

We value your business and look forward to continuing and growing our relationship with you.

Sincerely,

Robert D. Ray, 
Managing Director, Commodities, Equities and International Sales 
CME Group Products and Services