CN to report, review second-quarter 2008 financial results on July 21, 2008 CN to report, review second-quarter 2008 financial results on July 21, 2008

MONTREAL, July 21, 2008 — CN (TSX: CNR) (NYSE: CNI) will issue its second-quarter and first-half 2008 financial and operating results today, July 21, 2008, shortly after 4 p.m. Eastern time (ET). CN's senior officers will review the results and the railway's outlook in a conference call/webcast this afternoon starting at 4.30 p.m. ET.

Parties interested in participating in, or listening to, the presentation and following question-and-answer period by telephone should dial 1-866-542-4239 or 416-641-6114 by 4.20 p.m. ET July 21.

E. Hunter Harrison, president and chief executive officer of CN, will lead the conference call; he will be joined on the call by Claude Mongeau, executive vice-president and chief financial officer, and James Foote, executive vice-president, Sales and Marketing.

CN will webcast the presentation live and furnish slides supporting the officers' remarks via the Investors' section of its website, www.cn.ca/investors. The slides will be posted shortly after 4 p.m. ET July 21 under Earnings Release. CN will archive the webcast and slides on its website until Aug. 20, 2008.