Sidley Austin LLP

Arnoud R Willems

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Arnoud Willems leads the EU trade and customs team and co-founded Sidley’s office in Brussels. He represents the interests of multinational companies in high-profile trade matters and advises clients on strategies for solving market access problems.

A key aspect of Arnoud’s practice involves counseling companies on how to improve their competitiveness and financial performance through the application of WTO rules, EU rules and treaty (trade) provisions. He also helps companies capitalize on opportunities as trade disagreements rise from national to EU to WTO level, guiding clients through negotiations, administrative proceedings and court challenges.

Most recently, Arnoud has been advising clients on various aspects of the legal and policy implications of Brexit.

Since 1995, Arnoud has been a leading advocate of companies challenging EU anti-dumping regulations, with an exceptional success rate in such cases before the European Courts.

Arnoud has a deep understanding of how trade rules shape global flows of capital, investment, goods, technology and services. He is recognized as a thought leader on the harmonization of trade and customs procedures and methodologies, as well as on competitiveness, the application of WTO rules to the energy sector, climate change and the impact of the new EU energy regulation.