Mark Warner Was Featured in an Article About Secondary Sanctions on Cuba, the Sale of Sherritt International and Canada’s Blocking Statute and Investment Review Law

Mark Warner was featured in an article about how the Trump administration’s expanded secondary sanctions against companies operating in Cuba led to the sale of Canadian mining company, Sherritt International to Gillon Capital — a family office based in Dallas, Texas, with primary holdings in high-end real estate, malls, and hotels and how the Foreign Extraterritorial Measures Act and Investment Canada Act could impact that. (June 17, 2026) Mr. Warner is a Canadian and U.S. lawyer who has practiced in Toronto, Washington, New York and Brussels and has advised governments on trade policy and trade negotiations. Mark also previously worked on trade and competition issues as counsel in the OECD Trade Directorate where he participated in the negotiations of the Multilateral Agreement on Investment and represented the OECD at meetings of the WTO Working Group on Trade and Competition Policy and the Working Group on Trade and Investment.

Mark provides international trade and investment law advice to natural resources clients on trade agreements, trade remedies, sanctions, export and import controls, anti-corruption, corporate social responsibility and compliance issues as a colleague at Pilot Law LLP which provides comprehensive legal services for developing resource businesses in the mining, energy and renewables sectors. He participated in an international arbitration relating to the expropriation of the assets of a U.S.-based oil company in Libya and related issues under applicable sanctions and foreign asset control rules.

As Legal Director of the Ontario Ministry of Economic Development & Trade, Mark led Ontario’s legal team for trade negotiations (including the Canada-EU Trade Agreement and the U.S. Agreement on Government Procurement), advised on trade disputes (including the Green Energy Act and softwood lumber) and various NAFTA Chapter 11 investor-state arbitration matters. He also led the Ontario’s legal team for the insolvency / restructuring of General Motors and Chrysler, and various grant and loan agreements to leading automotive and automotive parts companies, including to electric car battery manufacturer, Electrovaya and a Better Place demonstration centre and electric vehicle charging station network, and more recently has assisted with an electrical vehicle battery manufacturing contractual dispute.