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Jones Day

Sébastien Champagne

Work +32 2 645 15 20
Jones Day

Work Department

Global Disputes; Antitrust Civil Investigations & Litigation


Sébastien Champagne, Partner, focuses on domestic and cross-border litigation. He has represented clients in complex commercial disputes, trade practice and product liability disputes, as well as in telecom-related and competition disputes. Sébastien regularly represents and advises major national and international corporations in pretrial negotiations and in litigation before judicial and administrative courts. His clients are active in various sectors, including the telecom, engineering and supply of industrial equipment, IT, automotive, and pharmaceutical industries. He also is experienced in the drafting and negotiation of commercial and telecom-related agreements.


Dutch, English French.


Admitted to the Brussels Bar.


New York University (M.C.J. 1994); Catholic University of Louvain, Belgium (Law Degree 1993).


Competition: Belgian law

Within: Competition: Belgian law

Jones Day's clients benefit from the synergies between the competition practice and the firm's strengths in litigation, corporate and M&A, and regulatory matters. Co-led by Alexandre Verheyden and Bernard Amory, the competition team covers major Belgian-level mergers, investigations and litigation centred on alleged abuse of dominant positions/cartels, and state aid cases . In the competition litigation arena, clients benefit from the experience of Michèle Grégoire, who is one of only 20 lawyers to be a member of the Belgian Supreme Court Bar. The firm's excellent practice generates work from a mix of Belgian and global clients; Verheyden, Sébastien Champagne and associate Laurence N. Van Mullem are representing BT, Colt and Verizon in three separate damage claims in relation to an alleged abuse of dominance by Belgacom Mobile concerning low on-net tariffs. Further showcasing the firm's strengths in the telecoms sector, Yvan Desmedt has been advising Telenet/Liberty Global on a requirement to provide access to competitors to the cable market in Belgium. Elsewhere, the group stands out in matters involving other industries, such as transportation, consumer goods, energy and resource management, and financial services. Laurent De Muyter and Charles de Navacelle recently made partner.

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Dispute resolution

Within: Dispute resolution

At Jones DaySébastien Champagne heads a team noted for its expertise in handling arbitration, competition law issues, cross-border disputes and product liability matters. Key contacts in the group include Michèle Grégoire, who has established expertise in representing clients before the Belgian Supreme Court, and Vanessa Foncke, who has notable experience in domestic and international arbitration.

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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

Legal Developments in Belgium

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