On February 27, 2026, a judicial precedent was published in the Federal Judicial Gazette (Semanario Judicial de la Federación), declaring that the provision of the Policies and Guidelines for the Development of Due Diligence in Petróleos Mexicanos, its Subsidiary Production Companies and, where applicable, Affiliated Companies, in matters of Corporate Ethics and Integrity (Políticas y Lineamientos para el Desarrollo de la Debida Diligencia en Petróleos Mexicanos, sus Empresas Productivas Subsidiarias y, en su caso, Empresas Filiales, en materia de Ética e Integridad Corporativa) (“Pemex’s Policies”), which prevented Pemex from entering into new contracts with individuals or companies that had a pending lawsuit against Pemex and its companies, is unconstitutional because it violates the principles of legality and legal certainty.