Dear CME Globex Customers,

On Saturday, June 3, 9:30 a.m. - 12:00 p.m. Central time, CME is hosting a mock trading session to prepare for the June 11 launch of NYMEX products on the CME Globex platform. Participants must meet the following requirements before the mock trading session begins. All customers who meet the following requirements are welcome to participate.

• Participants' trading applications must be configured to receive NYMEX market data from the CME Globex platform. The configuration information is available in Section 3.0, "Market Data Dissemination", in the NYMEX Products on the CME Globex Platform Client Impact Assessment.
• Participants' clearing firms must be permissioned to trade NYMEX products via the CME Globex platform.

During the mock trading session, please call the conference bridge number at 866.548.4703 and enter passcode 584529. For technical or market issues during the session, please contact the CME Globex Control Center (GCC) at 312.456.2391.

More information on this mock trading session is available online, including the formal mock trading scripts in Appendix 1.

For questions about this mock trading session, contact CME Globex Account Management at 312.648.3736; or at +44.207.623.2550 in Europe.

Thank you,

CME