Claus Zimmermann
Claus Zimmermann

Claus Zimmermann

Partner and Global Head of International Trade

Brussels

Introduction

Bringing a distinctive dual perspective in economics and law, Claus counsels clients on trade compliance, trade defense / customs investigations as well as international trade disputes.

Claus Zimmermann advises governments, trade associations and enterprises from around the world on all aspects of EU foreign trade and regulatory law, general public international law as well as on international economic law, especially WTO law and free trade agreements. The main focus of his practice since 2011 has been to assist clients navigate geopolitical risks and the increasingly complex legal frameworks pertaining to market access and regulatory barriers, trade remedies (anti-dumping, anti-subsidy and safeguards), foreign-direct investment screening, and trade compliance, notably in the fields of customs, EU sanctions law and export controls. With well over a decade of experience advising on compliance with various EU sanctions regimes and export controls, Claus and his team have been at the forefront of this field. They are also adept at handling complex internal investigations and carrying out audits of internal compliance mechanisms.

Claus has many years of experience as litigation counsel in complex proceedings before the WTO (assisting clients at all stages of WTO dispute settlement, in over 20 distinct disputes, across a wide range of WTO agreements), the General Court and the Court of Justice of the European Union and various national courts. He also possesses rich experience representing clients in high-profile trade-remedy investigations before the European Commission, across a variety of industry sectors.

Claus holds an LL.M. from Yale Law School and doctorates in both public international law (University of Oxford) and economics (University Paris 1 "Panthéon-Sorbonne") and thus brings a sought-after dual perspective to his work. He is a regular speaker at international conferences, and his research has been published in leading journals such as the American Journal of International Law and the European Journal of International Law.

 


  • Andritz Group | Lead Partner | 2024-2026 | Comprehensive advice with respect to export controls and sanctions law issues affecting the technology and engineering sectors.
  • Kuwait Petroleum International (KPI) | Lead Partner | 2026 | Advice on multijurisdictional oil sanctions, including jurisdictional nexus and structuring considerations.
  • Asian gas conglomerate | Lead partner | 2026 | Advice on multijurisdictional energy sanctions, including risk mitigation strategies and licensing frameworks.
  • Petrochemical Company | Lead Partner | 2025-2026 | Legal Representation in an Indonesian anti-dumping investigation of imports of Polypropylene Homopolymer from, inter alia, Viet Nam.
  • Chang'an Automobile Group | Lead Partner | 2024-2025 | Legal representation in the EU anti-subsidy investigation of battery-electric vehicles from China and advice on subsequent regulatory developments.
  • Canadian Engineering Company | Lead Partner | 2024-2026 | Legal representation in compliance proceedings before the Belgian customs authorities, including a judicial appeal before the Belgian State Council, challenging alleged customs and sanctions violations with respect to exports to Iran.
  • Chinese chemicals company | Lead Partner | 2026 | Comprehensive due diligence and legal assessment under EU law and UN rules of its supply chain compliance systems in relation to forced labor.
  • Angola LNG Marketing | Lead Partner | 2024-2026 | Advice in relation to the implementation of the EU Methane Regulation and stakeholder engagement at the national and EU level.
  • Japanese Trading and Investment Company | Lead Partner | Lead Partner | 2024-2025 | Advice on various implementation aspects of the EU Carbon Border Adjustment Mechanism and on the EU Net Zero Industry Act
  • Hyundai Steel | Lead Partner | 2024-2026 | Weekly updates and advice on the EU Carbon Border Adjustment Mechanism and assistance with various public consultations in the EU legislative process.