Exhibit 99.1

Thomson Reuters Corporation

333 Bay Street, Suite 400

Toronto, Ontario M5H 2R2

Canada

Tel (416) 360-8700

January 17, 2013

British Columbia Securities Commission

Alberta Securities Commission

Saskatchewan Financial Services Commission, Securities Division

Manitoba Securities Commission

Ontario Securities Commission

Autorité des marchés financiers

New Brunswick Securities Commission

Nova Scotia Securities Commission

Superintendent of Securities, Prince Edward Island

Superintendent of Securities, Newfoundland and Labrador 

Superintendent of Securities, Yukon

Superintendent of Securities, Northwest Territories

Superintendent of Securities, Nunavut

Toronto Stock Exchange

CDS Clearing and Depository Services Inc.

The Depository Trust Company

Re: Thomson Reuters – Notification of Meeting and Record Date

Ladies and Gentlemen,

Pursuant to National Instrument 54-101, Communication with Beneficial Owners of Securities of a Reporting Issuer (NI 54-101), we advise the following:

Date of Meeting	May 8, 2013
Record Date for Notice and Voting	March 22, 2013
Beneficial Ownership Determination Date	March 22, 2013
Class of Securities Entitled to Receive Notice of and Vote at the Meeting	Common Shares
Whether the Meeting is a Special Meeting (as defined by NI 54-101)	Yes
CUSIP	884903105

Sincerely,

/s/ Paula R. Monaghan

Paula R. Monaghan

Assistant Secretary