Overview
- Mexico published a Secretaría de Economía agreement in the Diario Oficial de la Federación on June 22, 2026, formally adding the United Kingdom to its CPTPP tariff schedule so customs can apply preferential rates to qualifying UK‑origin goods.
- Preferential treatment requires CPTPP rules of origin and proper documentation, and some tariff lines become duty‑free immediately while others follow phase‑out timetables that end between 2027 and 2033.
- The DOF modification updated product‑specific appendices and codes, affecting items such as dairy and processed foods and giving customs authorities the legal basis to apply the new preferences.
- Mexican officials say the move aims to boost high‑value sectors like automotive, aerospace and pharmaceuticals by encouraging investment and technology transfer, though imports must still meet Mexican Official Standards, permits and customs rules.
- The CPTPP now covers 12 economies with the UK as the first European member, and reporting noted minor discrepancies in 2025 Mexico–UK trade baselines (reported as about $5.69 billion and $6.29 billion) used to gauge potential impact.