The European Commission’s proposal to extend the Carbon Border Adjustment Mechanism (CBAM) to 180 downstream goods remains unsettled, leaving importers to separate products covered by current rules from those that may be added later. The proposed extension would primarily cover steel- and aluminium-intensive products and take effect in January 2028.
In Brussels, the Commission made the proposal in December 2025. The Council adopted its position in June 2026, while the European Parliament voted on amendments in September and proposed a broader perimeter. Negotiations between the two institutions have not settled the annex specifying which products would be covered.
For importers, the distinction matters now: the binding, code-by-code product scope relevant to a 2026 declaration is separate from proposed coverage that could affect future supplier contracts or investment decisions. Products on the proposed list should not be treated as creating a current CBAM certificate liability.
Product codes set the boundary
CBAM obligations attach to goods identified under the applicable customs nomenclature and regulatory conditions, not automatically to every product used by a covered industry. A product’s eight-digit customs identity can determine its treatment more directly than the sector buying or using it.
Classification depends on a product’s objective characteristics and the tariff rules applied when it enters the EU, rather than solely on its material content or the manufacturer’s internal product category. The same metal can arrive as semi-finished stock, a machined component or part of a complex assembly, with different possible customs classifications.
A shipment of pipe fittings, a coated coil and a completed pump assembly may therefore require different carbon files even if each contains substantial steel. An item marketed as a machine spare could still be classified as a metal article, while a complete machine could fall under a different tariff heading. Disputed classifications should be reviewed by an experienced customs professional, rather than inferred from metal content.
EU buyers can link purchase-order lines to CN classifications, supplier installation data, origin, volumes and responsibility for declarations. They should distinguish emissions data from origin documents, technical specifications and certificates of conformity, because those records establish different facts. A factory product carbon footprint may not follow the prescribed CBAM methodology and may therefore be unsuitable for a formal declaration.
Purchasing controls and cost tracking
A classification-first review could begin with a purchasing dataset containing a thousand active items. Items can be ranked by annual import value, likely metal content, customs uncertainty and the consequences of a price correction. Ambiguous components can be referred for binding or specialist customs classification, while goods clearly outside the current schedule can be placed in a monitoring category.
This approach is intended to avoid using scarce technical resources to calculate emissions for products that do not create a present declaration duty. A change to a part number, manufacturer or processing route should trigger a review of the goods code and evidence file in the purchasing system.
Finance teams can reconcile declared import volumes with required certificate purchases, while engineering teams check whether material substitutions change the underlying production route. These controls are especially relevant to framework contracts where successive deliveries may come from different factories. Integrating classification into engineering, procurement and customs work can help companies identify potential future price changes earlier than sector-wide descriptions do.
For goods already covered, buyers should estimate emissions under the applicable rules, apply the free-allocation adjustment and recognise eligible carbon prices paid abroad. For goods on a proposed future list, they can model a shadow carbon cost, but should not record it as a current certificate liability.
Finished products outside CBAM’s scope can still be affected indirectly by costs under the EU Emissions Trading System (EU ETS) borne by domestic suppliers of metal, heat and electricity. Combining costs for goods already covered, proposed future coverage and indirect EU ETS effects can distort margin analysis and prompt unjustified supplier price demands.
Cross-border production adds another classification question. If a casting is made in one country, machined in a second and the final component imported from a third, the importer needs a defensible record of what crossed the EU border and how it was classified there. Trade diversion or superficial processing intended to evade a charge can raise anti-circumvention concerns, but legitimate transformation cannot automatically be treated as evasion; the factual production route matters.
The recommended first practical step is a customs-and-carbon register for the highest-value purchased products, rather than a generic supplier questionnaire about CBAM compliance. For companies with complex supply chains, the record needs to connect the imported product to its classification and supporting evidence at the point it crosses into the EU.