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Clifford Sosnow Ottawa Lawyer

Clifford Sosnow *

Partner Fasken
Whether its sanctions, export controls, national security reviews or bribery and corruption at the border and beyond, companies realize they must pay extra care to each of these potentially disruptive obstacles to smooth and predictable cross-border transactions or face the real possibility of increased costs, denied investments, lost business and reputational damage.
Jurisdiction Ontario, 1987
Language(s) English, French
Office(s) Toronto, Ottawa
Contact
*practising through a professional corporation
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Overview

Clifford Sosnow is the Chair of Fasken’s International Trade and Investment Group. He is an internationally recognized trade, investment and anti-bribery law advisor, strategist and advocate. He is ranked among the best of the best, a leading trade law practitioner by Canadian and international directories on anti-bribery law, export/import licensing compliance, national security reviews, controlled goods requirements and audits, economic sanctions, Cuba blocking law, dumping/countervail investigations and customs issues.

Clifford is recognized as a leading trade lawyer in numerous directories including Chambers Global and Chambers Canada (Band 1), Who’s Who Legal 100, Legal 550 for International Trade, Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada, Best Lawyers in Canada, Expert Guides Best of the Best, and is recognized by Legal 500 for Public Procurement.

Clifford Sosnow leverages an immense depth of experience, both in government and as a private practitioner, to assist clients with a range of trade queries and issues. 
 (Chambers and Partners Canada Guide 2023)
Clifford Sosnow is a master of international trade regulation.
 (Chambers and Partners Canada Guide 2022)

Clifford leverages his rankings as a leading practitioner to provide strategic advice to corporations, governments and industry associations. He is a seasoned advocate before Canadian trade regulators, government agencies and departments, and NAFTA and WTO arbitrators, but also issues opinions on complex cross-border matters including sanctions, export control and anti-bribery law and conducts anti-bribery, export control, national security and sanctions due diligence of sophisticated, high profile and high value M&A transactions. Clifford also regularly counsels clients to minimize their enforcement risk through sanctions and export control compliance audits and the development of best practice anti-bribery and trade controls internal policies.

Clifford Sosnow has over three decades of experience in advising clients on several of the key criteria Canadian regulators examine in conducting national security reviews of proposed acquisitions. These include the transfer of sensitive technology, the involvement of Defence Production Act and other controlled goods and technology and Canada’s defence capabilities and interest. Clifford has been invited to speak at conferences on the subject and has participated in proposed acquisitions raising Canadian national security issues.

Having previously clerked at the Federal Court of Canada, acted as in-house counsel with the Department of Foreign Affairs International Trade and Development (Global Affairs Canada), and the Canadian International Trade Tribunal, Clifford leverages this experience and understanding of Canadian government to minimize enforcement risk including the strategic use of voluntary disclosures and requests for sanctions permits.

Clifford advises Canadian businesses (operating both inside and outside of Canada), on how to best manage the risk of human rights impacts in their operations and supply chains, as well as guiding them on corporate reporting obligations, including those under Canada’s new Fighting Against Forced Labour and Child Labour in Supply Chains Act.

Clifford is a thought leader. His acknowledged practice has earned coverage across media and print outlets including National Public Radio, the Canadian Press, Bloomberg TV, The Globe and Mail, National Post and the Canadian Broadcasting Corporation. He is the chair of the American Bar Association’s International Law Section, and holds executive positions in many business associations including as Vice-Chair of the Responsible Business Conduct (ESG) Committee of the Paris-based OECD business advisory committee (BIAC).

In addition to engaging in an active speaking and moderating schedule at legal and business conferences around the world, Clifford also writes extensively on international trade and bribery issues, and for the past several years sits on the Editorial board of the Kluwers Global Trade and Customs Journal.

Clifford received the Queen Elizabeth II Diamond and Queen Elizabeth II Golden Jubilee medals.

Achievements

  • Recognized nationwide as a Leading Individual in International Trade , The Legal 500 Canada 2021 to 2026
  • Recognized nationwide in International Trade/WTO, Chambers Canada 2016 to 2026
  • Recognized in the Canadian Legal Lexpert Directory in White Collar Defense & Investigations, Lexpert 2015 to 2026
  • Recognized in the Canadian Legal Lexpert Directory in International Trade Regulation, Lexpert 2015 to 2026
  • Recognized in International Trade and Finance Law in Toronto, The Best Lawyers in Canada 2012 to 2026
  • Recognized nationwide in Canada in International Trade/WTO, Chambers Global 2006 to 2026
  • Recognized in the Canadian Legal Lexpert Directory in Commodity Tax/Customs, Lexpert 2026
  • Recognized as a Global Elite Thought Leader and as Recommended in Trade & Customs, Lexology Index 2021 to 2025
  • Recognized nationwide in Canada in International Trade/WTO, Chambers Global 2017 to 2025
  • Recognized for Public Procurement Law in Toronto, The Best Lawyers in Canada 2009 to 2022

Experience

  • Smiths Group PLC acquires Wattco, [Deal - Smiths Group PLC], Acquisition of Wattco by Smiths Group PLC.
  • Tru Tech Corporation acquired by ODL, Incorporated, [Deal - Tru Tech Corporation], Canadian leader in exterior door manufacturing acquired by prominent American building products supplier
  • IAMGOLD Corporation completes sale of its interest in Rosebel Gold Mines to Zijin Mining for approximately US$360 million in cash and release of US$41 million in liabilities, [Deal - IAMGOLD Corporation], Canadian gold mining company sells interest in one of the largest in-production gold mines in South America
  • Motion Metrics International Corp sold for C$150 million, [Deal - Motion Metrics International Corp.], Scottish engineering firm acquires Canadian mining technology firm, a leading developer of innovative AI and 3D rugged machine vision technology used in mines worldwide.
  • Arsenal and Seal for Life announce acquisition of Canusa, [Deal - Arsenal Capital Partners and Seal For Life Industries], Leading private equity firm specializing in investments in specialty industrials and healthcare companies acquires global leading manufacturer of pipeline coatings.
  • Sale of Ridley Terminals Inc. by Canada Development Investment Corporation on behalf of the Government of Canada for C$350,000,000, [Deal - Canada Development Investment Corporation], The transaction is the first Canadian privatization where local First Nations obtained an equity interest as part of the disposition. The First Nation participation will position the RTI transaction as one of the most important for 2019 and have lasting significance for comparable transactions in the future. The transaction resulted in one of the first joint ventures between US private equity and First Nations. Given the uncertainties associated with acquisitions of infrastructure, project and natural resource-based assets in Canada, this transaction can be used as a model of how to manage and structure similar private-sector acquisitions.
  • Kraft Heinz Co’s C$1.62 billion sale of its Canadian natural cheese business to Parmalat SpA, [Deal - Kraft Heinz Canada Inc.], On Tuesday, July 2, 2019 Kraft Heinz Canada Inc. completed the previously announced C$1.62 billion sale of its Canadian natural cheese business to Parmalat Canada Inc. The transaction followed a competitive bidding process, and included the sale of well-known natural cheese brands Cracker Barrel,...
  • Windsor-Detroit Bridge Authority achieves financial close Gordie Howe International Bridge Project, [Deal - Windsor-Detroit Bridge Authority], On September 28, 2018, Windsor-Detroit Bridge Authority, a Crown corporation of the Government of Canada, reached financial close with Bridging North America General Partnership (a partnership indirectly held by ACS Infrastructure Canada Inc., Fluor Canada Ltd. and Aecon Concessions, a division o...
  • Catalyst Capital Group US$290 million sale of its portfolio company, Therapure Biopharma, [Deal - Therapure Biopharma]

Career & Education

Education

  • LLB University of New Brunswick
  • BSc, Neurobiology McGill University

Memberships & Affiliations

  • Chair, American Bar Association International Law Section
  • Vice-Chair, Business and Industry Advisory Committee (BIAC) to the Organisation for Economic Co-operation and Development (OECD), Responsible Business Conduct Committee
  • Past Chair,  Business and Industry Advisory Committee (BIAC) to the Organisation for Economic Co-operation and Development (OECD), Trade Committee     
  • Past Co-Chair, Canadian Chamber of Commerce, International Affairs Committee
  • Editorial Board, Kluwer Law International's Global Trade and Customs Journal
  • Transparency International (Canada), Legal Committee
  • Member, Prospectors and Developers Association of Canada
  • Member, Customs and International Trade Bar Association
  • Past Chair, Canadian Bar Association, International Law Section
  • Chair Emeritus, Inter-Pacific Bar Association, International Trade Law Committee
  • Past Vice-Chair, Canadian Association of Importers and Exporters
  • Board Member, Ontario Division, Multiple Sclerosis Society, 2010-2012

Knowledge

  • Canada Introduces New Bill to Strengthen Importation Ban, 6/19/2026
  • USTR Finds Canada’s Forced Labour Enforcement Insufficient: Key Considerations for Canadian Businesses, 6/9/2026
  • US Initiates Investigations of Canada and Other Trade Partners Over Failure to Prohibit Forced Labour Imports, 4/1/2026
  • 2026 ESG Disclosure Study, 3/3/2026
  • US Supreme Court Rejects IEEPA Tariffs: Key Takeaways for Canadian Businesses, 2/24/2026
  • Looking Ahead to 2026: A New Era of International Trade, 1/15/2026
  • New Measures to Protect Canada’s Steel and Lumber Industries: Key Takeaways for Businesses, 12/2/2025
  • Changes to Canada’s Retaliatory Tariff Regime: Key Takeaways for Importers, 9/3/2025
  • US Imposes Tariffs on Copper Products: Key Takeaways, 7/31/2025
  • New US Tariffs and Canada’s Retaliatory Surtax: What Canadian Importers/Exporters Need to Know, 3/5/2025

Events

  • Canada and the World Under Pressure in Year Two of Trump 2.0, 4/9/2026
  • Sanctions and Tariffs: The Financial and Operational Risks Every Mining Executive Must Understand, 2/26/2026
  • 100+ Days Into Trump 2.0: Canada Finds Its Feet, 5/13/2025
  • U.S. Trade Barriers and Canada’s Response: Considerations for Canadian & U.S. Businesses, 3/26/2025
  • The Canadian Challenge Comes into Sharp Focus: 2025 and Beyond, 2/4/2025
  • The Impact on Canada of the Upcoming US Elections: Change is in the Air, 9/27/2024
  • Proxy Season Preview: Business & Human Rights and Preparing for Reporting Requirements and Climate Change & Climate Disclosure, 1/10/2024
  • Symposium 2023 - Understanding Canada’s New Fighting Against Forced Labour and Child Labour in Supply Chains Act, 11/16/2023
  • New federal legislation on the use of forced labour: your supply chain in the spotlight, 10/5/2023
  • Sanctions Law and the New Normal of International Business, 6/23/2022

News

  • Clifford Sosnow discusses the trade outlook for Canadian businesses in the coming year in the Financial Post, 1/16/2026
  • Clifford Sosnow analyzes a judicial ruling declaring many tariffs imposed by the Trump administration to be illegal in the Financial Post, 9/2/2025
  • Clifford Sosnow comments on Canada’s decision to remove retaliatory tariffs on certain American goods in the Financial Post, 8/26/2025
  • Clifford Sosnow comments on the challenges companies face when trying to certify their products are CUSMA compliant in the Financial Post, 8/12/2025
  • Clifford Sosnow comments on small companies’ efforts to comply with USMCA rules in a report by Reuters, 8/6/2025
  • Clifford Sosnow comments on the conditions Canada must meet for securing a new trade deal with the US on BNN Bloomberg, 6/16/2025
  • Clifford Sosnow comments on the importance of regional trade agreements for Canada in The Globe and Mail, 6/13/2025
  • Clifford Sosnow comments on the U.S.-U.K. trade deal and its possible effects on Canada in the Financial Post, 5/8/2025
  • Clifford Sosnow comments on Canadian companies' efforts to mitigate the impact of US tariffs in an article by Reuters, 5/6/2025
  • Fasken Welcomes the IBA to Toronto, 5/1/2025

Publications

  • Canada wants to give a Russian plane it seized to Ukraine. Is that legal?, 11/9/2023
  • Understanding Canada’s New Forced-Labour Law, 9/5/2023
  • The global march of sanctions, 3/4/2022
  • Implications from the Boardroom to the Courtroom, 12/31/2021
  • Forward: The OECD, World Customs Organization, and Member Country Leadership in Combatting Customs & Border Corruption, 9/1/2021
  • Where Does Canada’s Construction Industry Fit into Biden’s “Made in America” Infrastructure Plan?, 5/20/2021
  • How the Trump impeachment inquiry could suffocate the new NAFTA, 10/23/2019
  • The Brexit Vote: Its Impact on the Canada-EU, 3/1/2017
  • Whither CETA, TPP, NAFTA and Other Trade Agreements in 2017, 12/16/2016
  • CETA & Canada-UK Trade: What Brexit Means for Canadian Business, 10/1/2016

Speaking Engagements

  • Sanctions Risk in Everyday Legal Practice: Know Your Client and Gatekeeper Responsibilities, 6/12/2026
  • The Most Complex Multi-Jurisdictional Sanctions and Reporting Challenges: Concrete Examples of How to Work Through the Most Vexing Dilemmas, 2/26/2025
  • Supplier Circumvention and Your Screening Program: Monitoring Third-Party Intermediaries to Mitigate the Risk of Export and Sanctions Violations, 1/29/2025
  • Navigating Legal and Geopolitical Aspects of Cross Border Transactions, 12/10/2024
  • The Impact of the U.S. Elections on the Global Regulatory Environment, 10/9/2024
  • FINTRAC and the Canadian Sanctions Enforcement Landscape: Guidance on Brand New FINTRAC Reporting Obligations Related to Sanctions, 3/6/2024
  • Cybersecurity & Ransomware Attacks: Managing New, Emerging Export Controls and Economic Sanctions Compliance Risks, 1/27/2022
  • General Counsel Plenary: An Insider’s ESG Perspective, 2/11/2021
  • Technology Transfers and Export Compliance in Real-Life: A Complete Roadmap to Complying with Cloud Computing, Encryption, Email, Social Media and Foreign National Requirements, 1/25/2021
  • What Happens at the Border Trade Facilitation and Practical Questions, 6/24/2020
Speaker The Most Complex Multi-Jurisdictional Sanctions and Reporting Challenges: Concrete Examples of How to Work Through the Most Vexing Dilemmas Canadian Institute 9th Annual Canadian Forum on Global Economics Sanctions location location Toronto, ON
Speaker Supplier Circumvention and Your Screening Program: Monitoring Third-Party Intermediaries to Mitigate the Risk of Export and Sanctions Violations Canadian Institute/American Conference Institute 14th Annual Forum on U.S. Export and Reexport Compliance for Canadian Operations location location Toronto, ON