The SD Myers v. Canada case set key precedents in NAFTA arbitration, clarifying national treatment, minimum standard of treatment, and damages in non-expropriation cases. The Tribunal found Canada's PCB export ban discriminatory, awarding SDMI CAN$6 million in compensation.

Metalclad v. Mexico highlights indirect expropriation under NAFTA, where regulatory actions deprived an investor of economic use. The tribunal ruled in favor of Metalclad, awarding $16.5M, but a Canadian court partially annulled the decision, limiting its scope.