The Chicago Board of Trade (CBOT^®) is extending, through July 31, 2007, the current exchange transaction fee waiver for fee categories 1 through 4 for CBOT full-sized and mini-sized gold and silver futures and for all fee categories for options on metals futures contracts.  For more information about the CBOT’s metals complex, please visit www.cbot.com/metals or call Business Development at 312-341-7955.