Attention Business Editors:

Thomson Reuters to Report Second-Quarter 2008 Results on August 12, 2008

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    Webcast Scheduled for 10:00 a.m. EDT; 3:00 p.m. BST

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    NEW YORK, July 24 /CNW/ -- Thomson Reuters (NYSE: TRI; TSX: TRI; LSE:
TRIL; Nasdaq: TRIN) today announced it will report its second-quarter 2008
results on August 12, 2008.  A webcast will be held on that day at 10:00 a.m.
EDT, 3:00 p.m. BST; details follow:

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    Who:    CEO Thomas H. Glocer and EVP & CFO Robert D. Daleo
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    What:   Presentation and Discussion of Second-Quarter 2008 Results for
            Thomson Reuters
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    When:   Tuesday, August 12, 2008 @ 10:00 a.m. EDT; 3:00 p.m. BST
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    Where:  www.thomsonreuters.com
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    How:    Live over the Internet -- To participate in the webcast, visit
            www.thomsonreuters.com and click on "Investor Relations" at the
            top of the page and then "News & Events" at the left side of the
            page.
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    Contacts:  Frank Golden, Senior Vice President, Investor Relations
               203-539-8470, frank.golden@thomsonreuters.com
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               Fred Hawrysh, Global Director, Corporate Affairs
               203-539-8314, fred.hawrysh@thomsonreuters.com
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               Victoria Brough, Head of Corporate Communications, EMEA
               +44 (0) 207 542 8763, victoria.brough@thomsonreuters.com
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    The Webcast will be archived at www.thomsonreuters.com.
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    (Logo:  http://www.newscom.com/cgi-bin/prnh/20080424/NYTH069LOGO )
    Thomson Reuters
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    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, scientific, healthcare 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.
    (Minimum Requirements to listen to broadcast): The Windows Media Player
software, downloadable free from http://www.microsoft.com/windows/default.mspx
and at least a 28.8Kbps connection to the Internet.  If you experience
problems listening to the broadcast, send an email to
webcastsupport@tfprn.com.)

For further information: Frank Golden, Senior Vice President, Investor
Relations, +1-203-539-8470, frank.golden@thomsonreuters.com, or Fred Hawrysh,
Global Director, Corporate Affairs, +1-203-539-8314,
fred.hawrysh@thomsonreuters.com, or Victoria Brough, Head of Corporate
Communications, EMEA, +44(0)207-542-8763, victoria.brough@thomsonreuters.com,
all of Thomson Reuters Web Site: http://www.thomsonreuters.com