Please be advised that TMX will be conducting an Internal Disaster Recovery Test on Saturday, Mar 25, 2023. The purpose of the Internal tests is to validate the failover of TMX's primary trading and feed delivery systems.

All post-test validation will be completed by TMX and no validation activity is required by TMX Clients.

Clients will experience a loss of network connectivity for circuits to 3500 Steeles Avenue, Markham data centre during the test. Any alerts generated should be ignored. Network connectivity is anticipated to be restored at approximately 11 PM ET on Saturday, March, 2023.

A notice will be sent to the street when the DR test is over and normal operations have resumed.

Additional Disaster Recovery (DR) tests for 2023:

• The Internal Connectivity Disaster Recovery (DR) test is scheduled for Saturday, June 3, 2023.
• The External Connectivity Disaster Recovery (DR) test is scheduled for Saturday, September 23, 2023.
• The External Functionality Disaster Recovery (DR) test is scheduled for Saturday, October 14, 2023.

Further communication regarding DR testing will be communicated closer to the testing date.

Please direct any questions, comments or requests for additional information to our Market Operations

Best Regards,

Market Operations

Toll-free: 1-877-588-8489

Telephone: 514-871-7872

Email: derivative.operations@tmx.com