Thomson Reuters to Redeem US$600 Million of Debt Securities

NEW YORK, NY - Thomson Reuters (TSX: TRI; NYSE: TRI), the world’s leading source of intelligent information for businesses and professionals, today announced it will exercise its right to redeem approximately US$600 million of outstanding debt securities. Three separate series of securities will be redeemed. Thomson Reuters plans to finance the redemptions through the issuance of new debt securities and/or cash balances.

In October 2009, Thomson Reuters will redeem the following securities:

* All C$400,000,000 of its outstanding 6.85% medium term notes (MTNs) due June 1, 2011 (CUSIP No. 88490Z AA2),
* All US$250,000,000 of its outstanding 4.75% notes due May 28, 2010 (CUSIP No. 884903 AU9), and
* All US$75,000,000 of its outstanding 7.74% notes due December 22, 2010, which were issued in a private placement.

Redemption prices include applicable early repayment premiums as well as accrued and unpaid interest through the redemption dates. The approximately US$600 million of outstanding debt securities to be redeemed reflects the amount expected to be paid by Thomson Reuters after termination of applicable cross currency interest rate swap agreements.

Non-registered holders (banks, brokerage firms or other financial institutions) of the C$400,000,000 6.85% MTNs due 2011 and the US$250,000,000 4.75% notes due 2010 that maintain their interests through CDS Clearing and Depository Services Inc. (CDS) should contact their CDS customer service representative with any questions about the redemptions. Alternatively, beneficial holders with any questions about the redemptions should contact their respective brokerage firm or financial institution which holds interests in the securities on their behalf.

When available, Thomson Reuters will provide the specific total redemption prices for each series of notes in the “Investor Relations” section of its website, wwww.thomsonreuters.com.

This news release is for informational purposes only and is not an offer to buy any securities of Thomson Reuters.