July 25, 2011

CN declares third-quarter 2011 dividend

MONTREAL, July 25, 2011 /PRNewswire/ - CN (TSX: CNR) (NYSE: CNI)
announced today that its Board of Directors has approved a
third-quarter 2011 dividend on the Company's common shares outstanding.
A quarterly dividend of thirty-two and one-half cents (C$0.325) per
common share will be paid on Sept. 30, 2011, to shareholders of record
at the close of business on Sept. 9, 2011.

CN - Canadian National Railway Company and its operating railway
subsidiaries - spans Canada and mid-America, from the Atlantic and
Pacific oceans to the Gulf of Mexico, serving the ports of Vancouver,
Prince Rupert, B.C., Montreal, Halifax, New Orleans, and Mobile, Ala.,
and the key metropolitan areas of Toronto, Buffalo, Chicago, Detroit,
Duluth, Minn./Superior, Wis., Green Bay, Wis., Minneapolis/St. Paul,
Memphis, and Jackson, Miss., with connections to all points in North
America. For more information on CN, visit the Company's website at www.cn.ca.