Silver Chicago comex - Jeff Press 1

For COMEX (a division of
CME Group), the main Chicago phone number for general inquiries is +1 312 930 1000 (switchboard) for the CME Group. For specific regulatory questions, use +1 312 341 7970, and for clearing member audit questions, call +1 312 930 3230.

http://s.barthakur.com/szz6a