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U.S. Investors filed a NAFTA claim against the United Mexican States alleging that Mexico had breached Article 1105 (Minimum Standard of Treatment) and Article 1110 (Expropriation and Compensation) as a result of Pemex’s (a Mexican state-owned oil company) alleged breach and termination of certain contracts.

U.S. Article 1128 Submission [455 KB] (Accessible version [654 KB])

Find further information and documents concerning this claim  

U.S. Department of State

The Lessons of 1989: Freedom and Our Future