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Jones Day

Thomas De Muynck

Work +32 2 645 14 11
Jones Day

Work Department

Mergers & Acquisitions; JV & Strategic Alliances; Antitrust Civil Investigations & Litigation


Thomas De Muynck, Partner, focuses on M&A transactions and joint ventures. He represents EU, U.S., and Japanese companies in corporate, commercial, and other matters in Europe and Japan. He has been with Jones Day since 1999 and has worked in the Firm's Brussels, Tokyo, and New York offices. Having lived and worked in Japan for more than three years, Thomas has developed a particular focus on representing Japanese clients in cross-border transactional and compliance matters. He has been involved in projects for Toyota, including JVs in Europe and South America, and multiple EU acquisitions for Bridgestone Corporation and Sumitomo Bakelite. Other Japanese clients include Hino Motors, Konica-Minolta, Pioneer, and Zeon Corporation. Major U.S. clients Thomas has represented on M&A and commercial matters include Diebold, Lubrizol, MasterCard, PepsiCo, The Riverside Company, Textron, and WL Ross & Co. He has advised EU clients such as BNP Paribas, Lagardere Services, and Total and Belgian companies including BASE, RHJI, and Van Hool. In the venture capital sector, Thomas has recently advised Alven Capital Partners, Inside Secure SA, and XAnge Private Equity on equity investments in Belgium. Thomas is a member of the Legal & Tax Committee of the Belgium-Japan Association.


Thomas De Muynck has been a lawyer at Jones Day since 1999 and a partner since January 2010.


English, Dutch, French, German, Japanese.


Brussels Bar, New York State Bar.


Columbia University (LL.M. 2002; Harlan Fiske Stone Scholar); University of Leuven, Belgium (J.D. magna cum laude 1998); Göttingen University, Germany (1997).


Commercial, corporate and M&A

Within: Commercial, corporate and M&A

The corporate and M&A team at Jones Day is acknowledged for 'investing in understanding its clients' companies and providing tailored legal advice'. The team was instructed by UPL to lead on the European aspects of its subsidiary UPL Corporation's $4.2bn acquisition of Arysta LifeScience. Practice head Thomas De Muynck provides 'excellent legal support' and assisted Hexagon with its acquisition of Luciad, a provider of 5D visualisation and analysis solutions, from GIMV. The group also acts for HeidelbergCement, for which a team led by Matthieu Duplat advised both on the acquisition of the remaining shares of Beton Baguette Marcel and the sale of a ready-mixed concrete plant.

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Industry focus: IT and telecoms

Within: Industry focus: IT and telecoms

Jones Day has 'deep knowledge of the telecom industry and regulatory framework' with its cross-departmental team attracting praise for its 'proactive assistance'. The group represented BT, Colt, and Verizon in three separate damage claims brought by Belgacom Mobile pertaining to abuse of dominance allegations. In another recent work highlight, a team acted for Fortino Capital Partners on its €2.2m investment in Dobco Medical Systems. The department also assists Broadband Belgium and Broadband Portugal with regulatory advice. Alexandre Verheyden is 'highly recommended for regulation and competition in the field of telecoms' and heads the group alongside M&A partner Thomas De Muynck and recently promoted partner Jörg Hladjk, who specialises in cybersecurity, privacy and data protection.

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Legal Developments by:
Jones Day

  • US rules regarding offshore accounts

    The Hiring Incentives to Restore Employment Act 2010, enacted on 18 March 2010, imposes a new US withholding tax and reporting regime, known as the Foreign Account Tax Compliance Act (FATCA). The FATCA regime applies generally to payments made after 31 December 2012, except on obligations (to be defined in future guidance) outstanding on 18 March 2012. Substantial effort is required by foreign entities to bring their worldwide operations and policies into compliance with the FATCA rules as of the effective date.

    - Jones Day

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