November 1, 2023

Thomson Reuters Completes Acquisition of Westlaw Japan Business

Tokyo, November 1, 2023 Thomson Reuters (NYSE/TRI: TRI), a global content and technology company, announced today that Thomson Reuters K.K. (“Thomson Reuters Japan”) has closed its previously announced acquisition of the Westlaw Japan business, a leading provider of legal information services in Japan.

Westlaw Japan K.K. was formed in 2006 as a joint venture between Thomson Reuters and Shinnippon-Hoki Publishing Co., Ltd. (“Shin Nippon”). The organization, operating as Westlaw Japan, provided legal professionals in Japan access to the most extensive case database in Japan through its namesake solution. Following Thomson Reuters’ acquisition of the Westlaw Japan business, Shin Nippon remains a strategic partner to Thomson Reuters and is expanding the content it provides through the Westlaw Japan product.

The integration of the Westlaw Japan business and its customers into Thomson Reuters Japan supports Thomson Reuters’ strategy to offer Japanese legal professionals a best-in-class content technology platform and support their digital transformation ambitions.

Young Sun Bang, President and Representative Director of Thomson Reuters Japan, said: “Today marks an exciting day for Westlaw Japan employees and customers, and we are thrilled to welcome the Westlaw Japan team to Thomson Reuters Japan. The coming together of the two companies will allow us to accelerate Westlaw Japan’s evolution as the leading provider of legal content in the region and better address our customers’ digital transformation and content technology needs with Thomson Reuters Japan’s full solution suite.”

Thomson Reuters’ presence in Japan dates back to 1872, when the Reuters News Agency established its first office in the region, later followed by the founding of Thomson Corporate Japan Limited in 1989. Today, Thomson Reuters Japan offers its customers market-leading legal, tax and accounting, compliance and risk, and global trade information technology solutions.

Thomson Reuters

Thomson Reuters (NYSE / TSX: TRI) informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. The company serves professionals across legal, tax, accounting, compliance, government, and media. Its products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is the world’s leading provider of trusted journalism and news. For more information, visit


Certain statements in this news release are forward-looking, including but not limited to the company’s expectations about the expected closing date for the Proposed Transaction. The words “will”, “expect”, “believe” and similar expressions identify forward-looking statements. While the company believes that it has a reasonable basis for making forward-looking statements in this news release, they are not a guarantee of future performance or outcomes and there is no assurance that any of the other events described in any forward-looking statement will materialize. Forward-looking statements are subject to a number of risks, uncertainties and assumptions that could cause actual results or events to differ materially from current expectations. Many of these risks, uncertainties and assumptions are beyond our company’s control and the effects of them can be difficult to predict. You are cautioned not to place undue reliance on forward-looking statements which reflect expectations only as of the date of this news release. Except as may be required by applicable law, Thomson Reuters disclaims any obligation to update or revise any forward-looking statements.

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