Thomson Reuters Schedules First-Quarter 2009 Earnings Announcement and Webcast for Thursday, May 7, 2009

NEW YORK, NY - Thomson Reuters (NYSE: TRI; TSX: TRI; LSE: TRIL; NASDAQ: TRIN), announced today that its first-quarter 2009 earnings will be issued via news release before 9:30 a.m. EDT (2:30 p.m. BST) on Thursday, May 7, 2009.

Thomas H. Glocer, chief executive officer, and Robert D. Daleo, executive vice president and chief financial officer, will host a conference call and simultaneous webcast that morning at 10 a.m. EDT (3 p.m. BST). Discussions may include forward-looking information.

You can access the webcast by visiting www.thomsonreuters.com and clicking on “Investor Relations” at the top of the page and then “Earnings Webcasts” on the left side of the “Investor Relations” page. Registration for the webcast will begin April 24. Additionally, an archive of the webcast will be available in the “Investor Relations” section of the Thomson Reuters website.

Thomson Reuters

Thomson Reuters is the world’s leading source of intelligent information for businesses and professionals. We combine industry expertise with innovative technology to deliver critical information to leading decision makers in the financial, legal, tax and accounting, healthcare and science and media markets, powered by the world’s most trusted news organization. With headquarters in New York and major operations in London and Eagan, Minnesota, Thomson Reuters employs more than 50,000 people in 93 countries. Thomson Reuters shares are listed on the New York Stock Exchange (NYSE: TRI); Toronto Stock Exchange (TSX: TRI); London Stock Exchange (LSE: TRIL); and Nasdaq (NASDAQ: TRIN). For more information, go to www.thomsonreuters.com.

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