ASI certifies Nemak México S.A. facilities against Performance Standard V3.1

11 May 2026

Nemak S.A.B de C.V has achieved ASI Performance Standard V3.1 (2023) for manufacturing and associated supply chain activities across Nemak México, S.A. facilities in Nuevo León, México, including Plants 1 & 2, Plants 3 & 4, and the HPDC, Machining and EMC facilities. These combined production processes, operational activities, and supply chain management support the manufacture of high-quality aluminium components for the automotive industry.

Aluminium Stewardship Initiative (ASI) today announced that four Nemak México S.A. facilities have been certified against the ASI Performance Standard V3.1 (2023). The Certification covers multiple integrated production units manufacturing aluminium automotive components for e-mobility, structural and chassis, and internal combustion engine applications, including engine blocks, structural components, and battery trays. Across the certified units, activities include high-pressure die casting, melting, machining, and electric mobility manufacturing, with a combined annual output of approximately 14.8 million Aluminium components. The Certifications encompass Plants 1 & 2, Plants 3 & 4, Plants 5 & 6, the High-Pressure Die Casting plant, the Machining Plant, the Electric Mobility Centre, and the Melting Centre operating as a coordinated production system.

The ASI Certification program was developed through an extensive multi-stakeholder consultation process and is the only comprehensive voluntary sustainability standard initiative for the aluminium value chain. The ASI Performance Standard V3 and ASI CoC Standard V2 were launched in May 2022 following a multi-year revision process. The ASI Performance Standard V3 defines 11 principles and 62 criteria under three sustainability pillars – Environment, Social, and Governance – with the aim to address pressing sustainability issues in the aluminium value chain, such as biodiversity, Indigenous Peoples rights, circularity, and greenhouse gas emissions. The 2022 Standards and related documents underwent a minor update in 2023, accounting for editorial changes, correction of minor errors and for general clarification, culminating in the release of Performance Standard V3.1 (2023) and Chain of Custody Standard V2.1 (2023).

The independent, third-party audits of the Nemak México facilities were carried out by DNV Business Assurance Services UK Ltd. A full listing of audit findings is available in the summary audit reports, linked below. No non-conformances were identified during the audit of Nemak México, S.A. HPDC. Two major non-conformances were identified during the audit for Nemak México, S.A. Machining and Nemak México, S.A. EMC, Nemak México, S.A. Plants 3 & 4 and Nemak México, S.A. Plants 1 & 2 under the Criteria 5.3a GHG Emissions Reduction Plans and 5.4 GHG Emissions Management. Nemak México S.A. has been approved for an exemption relating to its GHG emissions performance under Criteria 5.3a and 5.4. Under this exemption, major non-conformances will not count towards Provisional Certification status. During the Certification Period, Nemak will be implementing a corrective action plan, which will be verified in follow-up audits.

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