Industrial Policy & Trade Monitor· 2663 actions· ✨ 89 recent

Decree reforming various tariff fractions of the General Import and Export Duties Tariff (TIGIE), published in the Diario Oficial de la Federación on 29 December 2025 and in force 1 January 2026. The reform, approved by Congress as a statutory amendment to the LIGIE (Chamber of Deputies and Senate, Dec 2025) and signed by President Claudia Sheinbaum, raises MFN import duties to between 5% and 50% ad valorem on 1,463 tariff lines covering more than 20 chapters of the TIGIE, spanning automotive, auto parts, textiles, apparel, footwear, steel, aluminum, plastics, paper, leather, furniture, glass, toys, appliances and cosmetics. The increases apply only to goods originating in countries without a free trade agreement with Mexico — principally China, South Korea, India, Vietnam, Thailand, Brazil, Indonesia, Chinese Taipei, the UAE, and South Africa. The decree formalises at statutory level the September 2024 Sheinbaum executive order placing a 50% duty on finished passenger vehicles from non-FTA states and is framed by the Secretaría de Economía and SHCP as the operational tariff instrument of Plan México (2025-01-21).

On 20 April 2022 Mexico's Diario Oficial de la Federación published a reform to the Ley Minera (Mining Law) declaring lithium "patrimonio de la Nación" (national patrimony) and of public utility, adding Article 5 Bis to state that no further concessions, licenses, contracts, permits or authorizations for lithium exploration, exploitation, benefit or use will be granted to private parties — reserving the entire value chain exclusively to the State (Articles 1, 9 and 10 also amended). On 23 August 2022 a follow-on decree created "Litio para México" (LitioMx), a decentralized public agency governed by a board of five cabinet secretaries (Energy as chair, plus Finance, Economy, Interior and Environment) and technically supported by the Mexican Geological Service, holding exclusive rights to explore, exploit and commercialize Mexico's lithium deposits. The law was subsequently upheld as constitutional by Mexico's Supreme Court in March 2026 (Acción de Inconstitucionalidad 78/2022, filed separately).

Mexico's Ley de Comercio Exterior (Foreign Trade Act, LCE), published in the Diario Oficial de la Federación on 27 July 1993 and entering into force 28 July 1993, is the foundational statute governing Mexico's entire external trade regulatory architecture. The LCE establishes the legal authority for the SECOFI/SE-administered antidumping (AD), countervailing duty (CVD), and safeguard investigation regime (Titles V–VII); the TIGIE tariff-schedule and tariff-classification framework; the IMMEX maquila and PROSEC sectoral-promotion programs; rules of origin for USMCA and other preferential trade agreements; and Mexico's export- licensing and strategic-material restriction framework. The LCE has been amended repeatedly through 2021 and remains the overarching parent authority for all Mexican trade-remedy proceedings administered by UPCI (Unidad de Prácticas Comerciales Internacionales) under the Secretaría de Economía.