On March 31, 2025, Thomson Reuters Corporation (TRC) and its wholly owned subsidiary, TR Finance LLC, filed a short form base shelf prospectus in Canada and a joint registration statement with the U.S. Securities and Exchange Commission to offer up to US$3 billion (approximately C$4.06 billion) in unsecured debt securities over a 25-month period. TRC Debt Securities will be senior unsecured obligations guaranteed by Thomson Reuters Applications Inc., Thomson Reuters (Tax & Accounting) Inc., and West Publishing Corporation. TR Finance Debt Securities will be jointly and severally guaranteed on a senior unsecured basis by TRC and the same subsidiaries.

Proceeds from any issuance under the shelf prospectus will be used for general corporate purposes, including potential debt repayment. Specific terms such as maturity, interest rates, and offering prices will be disclosed in prospectus supplements at the time of each offering.

Legal matters were handled by Torys LLP for TRC and TR Finance LLC (Canadian and U.S. law), Fredrikson & Byron P.A. for West Publishing Corporation (Minnesota law), and Holland & Knight LLP for Thomson Reuters (Tax & Accounting) Inc. (Texas law). Computershare Trust Company of Canada and Deutsche Bank Trust Company Americas will serve as trustees. The debt securities will not automatically be listed on any stock exchange, and liquidity will depend on future developments.