The Siemens v. Argentina case reaffirmed investor protections under BITs, ruling Argentina’s termination of Siemens’ contract as unlawful expropriation. The ICSID tribunal awarded Siemens over $217 million, reinforcing fair treatment and state obligations in investment disputes.

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.