William Pellerin

Partner at McMillan LLP

William Pellerin is a leading Canadian lawyer with extensive experience in international trade law, trade disputes, and customs compliance. Based in Ontario, William stands out as one of the few attorneys in private practice to appear before the WTO Appellate Body and dispute settlement panels, highlighting his advanced expertise in high-stakes international legal matters.

His practice focuses on litigating trade remedy cases, offering strategic advice on trade and customs compliance, and providing deep insights into international trade policy and government procedures. In 2022 alone, William represented clients in 16 distinct normal value reviews or re-investigations before the CBSA, demonstrating a market-leading level of activity and commitment to client success.

William is a recognized co-leader of McMillan LLP’s sanctions specialty, spearheading one of Canada’s busiest and most reputable economic sanctions practices. He is also at the forefront of advising on Canadian laws related to supply chains and forced labour, ensuring clients remain compliant with evolving regulations.

Prior to joining McMillan LLP, William served as deputy director for trade remedies and North America trade at Global Affairs Canada, where he managed Canada’s responses to international trade disputes and appeals. As former counsel at the Government of Canada’s Trade Law Bureau, he played a key role in litigating the prominent softwood lumber dispute against the US, one of the most significant trade cases globally.

Year Call to Bar: 2013 (ON)

Phone: (613) 691-6150

Email: [email protected]

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