Ms. Tracy Robinson reports

CN TO REPORT THIRD-QUARTER 2023 FINANCIAL AND OPERATING RESULTS ON OCTOBER 24, 2023

CN will issue its third-quarter 2023 financial and operating results after the market close on Oct. 24, 2023.

CN's senior officers will review the results and the railway's outlook in a conference call starting at 4:30 p.m. Eastern Time on Oct. 24. Tracy Robinson, CN president and chief executive officer, will lead the call.

Parties wishing to participate via telephone may dial 1-800-715-9871 (Canada/United States), or 1-647-932-3411 (international), using 1819110 as the pass code. Participants are advised to dial in 10 minutes prior to the call.

CN will webcast the presentation live and furnish slides supporting the officers' remarks via the investors section of its website. A webcast replay will be available after the call ends.

About Canadian National Railway Company

CN is a world-class transportation leader and trade enabler. Essential to the economy, to the customers and to the communities it serves, CN safely transports more than 300 million tons of natural resources, manufactured products and finished goods throughout North America every year. CN's network connects Canada's eastern and western coasts with the U.S. South through an 18,600-mile rail network. CN and its affiliates have been contributing to community prosperity and sustainable trade since 1919. CN is committed to programs supporting social responsibility and environmental stewardship.