Thomson Reuters Business Acquisition Report

NEW YORK, NY - May 15, 2008 - Thomson Reuters (NYSE: TRI; TSX: TRI; LSE: TRIL; NASDAQ: TRIN) today announced that it has filed a business acquisition report in connection with the recent acquisition of Reuters Group PLC. The business acquisition report includes historical audited financial information related to Reuters Group PLC and pro forma financial information which estimates the performance of the Thomson Reuters business as if The Thomson Corporation acquired Reuters on January 1, 2007.

The business acquisition report is available at www.thomsonreuters.com within the "Investor Relations" - "Regulatory Filings" section of the website.  The report has also been filed with the Canadian securities regulatory authorities and is available on the SEDAR website at www.sedar.com, and it has also been furnished to the U.S. Securities and Exchange Commission through EDGAR on Form 6-K and is available at www.sec.gov.  

About 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, 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.

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