Michael Shor is co-head of the firm's International Trade practice group. He has over 35 years' experience successfully representing private parties and foreign governments in international trade disputes and negotiations, international investment disputes, and in counseling companies on customs compliance. He has defended scores of unfair trade investigations, in the United States as well as in China and Mexico, representing companies or governments in Canada, China, Chile, Colombia, Germany, India, Indonesia, Japan, Korea, Turkey, and the United States. He has had notable success in obtaining novel solutions for industries and products requiring departures from traditional agency methodologies, and in crafting creative settlements to trade disputes.

He has been lead counsel in some 40 appeals of US international trade decisions before US courts and North American Free Trade Agreement (NAFTA) panels. He has worked with both foreign governments and private parties in World Trade Organization (WTO) panel and appellate body proceedings.

Mr. Shor also has acted as lead counsel in multiple investor-state arbitrations, obtaining the largest award to date in any NAFTA investment dispute, through settlement.

Mr. Shor also represents clients in customs investigations and audits, and advises importers on routine compliance issues, including the requirements of NAFTA and other duty preference regimes, tariff classification, valuation, and country of origin marking.


  • Representing medical equipment importer and manufacturer in 2015 customs penalty investigation.
  • Represented large non-ferrous metal importer in successful 2012 CBP focused assessment.
  • For Jeyes Inc., in 2011, obtained a CBP ruling overturning prior practice concerning the dutiability of previously imported articles exported for inclusion in sets with other foreign articles. Successful 2007 NAFTA verification audit for Glencore Canada’s copper refinery in Montreal. 
  • Successful 2010 protest on classification of reject copper anodes.
  • Advise several pharmaceutical and medical device companies on country of origin issues both for product labeling and eligibility for government contracting under TAA.

  • Handled scores of advance ruling requests, prior disclosures, and CBP requests for information, for full range of customs compliance issues, for importers of flowers, electronics, graphic arts, luxury goods, medical devices, metals, pharmaceuticals, and tobacco.
  • Lead counsel in customs classification trial before U.S. Court of International Trade.


Best Lawyers
International Trade and Finance Law (2006-2020)
The Legal 500 US
International Trade (2008-2019)
Chambers USA
International Trade: Trade Remedies & Trade Policy (Nationwide) (2005-2019)


  • JD, Harvard Law School, 1983
  • AB, Dartmouth College, 1980
  • District of Columbia
  • US Court of Appeals for the Federal Circuit
  • US Court of International Trade

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