Pre-consumer scrap is emerging as a significant issue in negotiations to strengthen the EU’s Carbon Border Adjustment Mechanism (CBAM) for steel and aluminium. The central question is how embedded carbon should be attributed to material returned to production before reaching the end user, while recognising recycling without allowing emissions to be shifted between products or countries.
The European Commission’s downstream expansion proposal, followed by the positions adopted by the Council and European Parliament, addresses scrap more explicitly than the original framework. Lawmakers are seeking a more consistent approach to pre-consumer material alongside safeguards against circumvention. However, the final methodology remains unsettled, making the proposed changes a planning signal rather than a rule for 2026 calculations.
Scrap classification could affect aluminium’s carbon position
For aluminium remelters, the eventual treatment of scrap could influence both the reported carbon advantage of recycled metal and the information required from suppliers. Pre-consumer scrap may originate in closely controlled manufacturing chains, whereas post-consumer scrap can have a different collection history, origin and traceability profile. Treating all scrap as a single, undifferentiated category may therefore prove insufficient under future CBAM accounting requirements.
Companies can prepare by improving material categorisation, supplier identification, mass-balance records, origin documentation and storage records. The objective is not to introduce emissions factors before the legislation establishes them, but to retain enough reliable information to apply the eventual methodology. Better traceability can also support quality assurance, circularity claims and responsible-sourcing requirements.
If the final framework recognises recycled inputs more clearly, secondary aluminium could become more competitive as CBAM requirements expand. However, additional documentation obligations could increase costs for informal or fragmented scrap supply chains. Recyclers able to provide both suitable material and auditable supporting data may be better positioned in EU-oriented supply chains.
Subcontracted processing must remain traceable
Outsourced transformation presents a related accounting risk. Where an in-scope process is performed by another company and the product subsequently returns to the principal operator, the associated emissions cannot simply be omitted from the calculation.
Contracts should establish access to relevant production data and cooperation with audits, while the principal operator maintains a consolidated map of the production route. This is particularly important for aluminium processors that subcontract heat treatment, coating or other specialised operations.
The same principle applies to scrap flows: the company must be able to connect the material received with its origin, processing history and subsequent use. Fragmented records across suppliers, subcontractors and production sites can make it harder to substantiate the treatment ultimately applied.
The 2028 horizon makes data readiness commercially relevant
The prospect of downstream expansion in 2028 gives precursor data practical value before the final rules are settled. A processor that already identifies its precursor installations, material quantities and product classifications can assess potential exposure more quickly if its finished goods enter CBAM scope. A company without those records may face higher implementation costs and greater dependence on default values.
South-East Europe has established metal-recycling flows and a manufacturing base that generates industrial scrap. Better documentation could help position this material as a more valuable feedstock for lower-carbon aluminium products. Conversely, weak provenance records could limit access to customers requiring verifiable information and leave some material competing in lower-value markets.
Remelters and recyclers should develop a scrap-data taxonomy and test whether suppliers can populate it consistently. Commercial agreements can require information on provenance, material category and quantities without assuming what the final emissions formula will be. This preserves flexibility as the legislative process continues.
Separate current compliance from proposed reform
For aluminium remelters, recyclers, scrap traders, processors and policymakers, the essential discipline is to distinguish the rules governing 2026 imports from the proposed changes under discussion. The Commission proposal and the respective Council and Parliament positions can inform scenario analysis and contract preparation, but should not be treated as operative requirements before the relevant amending legislation takes effect.
A two-scenario model—one based on current law and another on a plausible reform scenario—allows management to prepare data and consider optional contractual provisions without basing current compliance declarations on legislation that remains under negotiation.
The implementation test is whether a company can explain its calculation to both a verifier and a commercial manager using the same underlying records. CBAM documentation should connect purchasing, production, customs and finance rather than operate as a separate reporting exercise. Routine operational data, controlled assumptions and documented fallback methods make it easier to reflect changes in suppliers, processing routes, prices or legal requirements without rebuilding the calculation from scratch.
This approach also strengthens customer negotiations. A company can explain not only its reported carbon figure but also the operational evidence supporting it and the circumstances that could change the result.
Build an auditable decision file before transactions are locked
The practical test is whether the issue has been assessed before the relevant transaction or reporting period is finalised. A minimum decision file should link the precursor route, product classification, material flows and verified installation data, while identifying who approves each assumption. It should also specify a fallback treatment for cases where the preferred approach cannot be substantiated.
A fallback may produce a less commercially favourable result, but defining it in advance reduces the risk of discovering the company’s exposure only after a verifier, customs authority or authorised CBAM declarant challenges its position. As the financial implications of CBAM increase over time, avoidable evidence gaps risk becoming recurring costs.
The same documentation discipline can make later price adjustments, verification changes and management reporting easier to support. Integrating the evidence into normal business processes also helps ensure that information remains consistent across procurement, production and compliance teams.
Scrap is moving beyond its role as a recycling statistic and towards becoming a more explicitly regulated carbon input. Companies that can establish what material they hold, where it originated and how it was used will be better prepared for the next phase of CBAM.
