Dylan, a senior associate in Mayer Brown's International Trade group in Brussels, advises clients on a wide range of global trade issues. His practice focuses on international dispute settlement, trade defence measures, customs rules, trade negotiations, sanctions, and export controls. Dylan represents clients in WTO dispute settlement proceedings and proceedings before the Court of Justice of the European Union. He is recognized by The Legal 500 as a “Key Lawyer” in 2023, as well as by Who’s Who Legal (WWL) in 2022 as “Recommended: Trade & Customs.”

Dylan is experienced in advising and representing both multinational companies and sovereigns in respect of proceedings before WTO panels and the Appellate Body. In addition, he assists clients across industries in trade remedy investigations, such as anti-dumping and safeguard investigations. In this context, he has been involved in several cases before the Court of Justice of the European Union.

On a daily basis, Dylan advises on the interpretation of rules and procedures impacting trade in goods and services. This includes the provision of advice on customs matters such as rules of origin, tariff classification, customs valuation, and the applicability of special custom procedures. In this regard, he regularly counsels clients in respect of proceedings before customs and other relevant authorities of EU Member States.

Dylan regularly advises on the implications of the EU’s export control regime in relation to certain dual-use goods and other sanctioned items. In addition, he guides clients in respect of their day-to-day sanctions compliance efforts under the EU sanctions regimes, as well as with respect to the implementation of sanctions imposed by the United Nations.

Dylan also regularly advises on novel regulatory issues, including ESG-related matters such as supply chain due diligence, forced labour, and environmental issues including deforestation, the EU’s Carbon Border Adjustment Mechanism (CBAM) and Emissions Trading Scheme (ETS), as well as EU instruments adopted or negotiated as part of the push for “Strategic Autonomy”, such as the FDI Screening Regulation, the Foreign Subsidies Regulation, and the Anti-Coercion Instrument.

In 2022, Dylan was appointed as Professor of International Trade and Investment Law at the University of Antwerp. He is a Member of the Academic Board of the ELSA John H Jackson Moot Court Competition on WTO Law and of the Society of International Economic Law (SIEL). Dylan regularly speaks at international conferences, such as the SIEL Global Conference and the BIICL Annual Conference on WTO law. His research has been published in the Journal of International Economic Law, the World Trade Review, the Journal of World Trade, and the Global Trade and Customs Journal.

Prior to joining Mayer Brown in 2015, Dylan was a PhD candidate at KU Leuven (Belgium). His doctoral dissertation entitled “Accession to the World Trade Organization: A Legal and Normative Analysis” was published in 2018 by Edward Elgar Publishing. In early 2016, Dylan gained valuable experience in the Appellate Body Secretariat of the WTO. Earlier in his career, he served at the Ministries of Foreign Affairs and Economic Affairs of The Kingdom of The Netherlands as a trade policy advisor based at the Permanent Representation of the Kingdom of the Netherlands to the WTO in Geneva.

Dylan is fluent in English and German in addition to his native Dutch.

Spoken Languages

  • Dutch
  • English
  • German


  • Assistance to multinationals and sovereigns in several major WTO disputes, involving quota, trade defence measures, trade in services, trade-related aspects of intellectual property rights (“TRIPs”), and the basic non-discrimination principles
  • Assistance to various stakeholders, such as exporting producers, importers and industry associations, in EU trade defence investigations (dumping, anti-subsidy, and safeguard)
  • Assistance to clients in customs proceedings before the domestic courts of EU member states
  • Advice to chemical companies on EU export control legislation, notably in respect of dual-use items
  • Representation of US and Indonesian clients before the Court of Justice of the European Union in cases against regulations imposing anti-dumping measures
  • Advice to several multinational companies on customs classification matters, including the review of the Harmonized System (“HS”) nomenclature in the World Customs Organization (“WCO”)


University of Antwerp, Professor of International Trade and Investment Law

Maastricht University, LLM

Maastricht Graduate School of Governance, MSc

KU Leuven, PhD


  • Brussels Bar (Nederlands Orde van Advocaten, balie Brussel)


  • Professor of International Trade and Investment Law at the University of Antwerp
  • Associate Fellow of the Leuven Centre for Global Governance Studies (GGS)
  • Visiting Lecturer at KU Leuven and University of Eastern Finland (UEF)
  • Member of the Academic Board of the ELSA Moot Court Competition on WTO Law (EMC2)
  • Member of the Society of International Economic Law (SIEL)
  • Legal 500 – Key Lawyer (2023)
  • Who’s Who Legal (WWL) – Recommended: Trade & Customs (2022)