The European Commission has proposed extending the Carbon Border Adjustment Mechanism (CBAM) to downstream products. The proposal would bring carbon compliance closer to finished industrial goods, shifting responsibilities from primary metal producers toward manufacturers of machinery, equipment and components. From 2028, companies exporting products to the EU could become directly subject to CBAM if their product codes are included in the final legislation, including cases where those products are made from steel already covered by the mechanism.
The proposed downstream extension is separate from current CBAM obligations. The Commission’s proposal covers 180 downstream steel- and aluminium-intensive products, while positions adopted by the Council of the EU and the European Parliament envisage broader coverage. The stated policy objective is to reduce the risk of production relocating from the EU to jurisdictions with lower carbon costs, particularly where basic metals remain within CBAM but downstream manufacturing does not.
The final product list and calculation methodology are still under negotiation. Companies are therefore advised to distinguish between rules governing 2026 imports and possible requirements tied to a future downstream extension. The Commission proposal and the Council and Parliament positions can be used for scenario analysis, investment planning and contract drafting, but they should not be treated as binding requirements for current declarations before any amending legislation takes effect.
Separate planning for current CBAM and a potential downstream reform
A two-scenario approach is presented as a way to prepare without assuming that proposed changes are already law. One model should reflect current CBAM requirements, while a second estimates exposure under a potential reform. This approach is intended to support preparation of data systems and optional contractual provisions without basing present compliance positions on an unsettled legislative outcome.
For machinery manufacturers, the data challenge differs from that faced by steel mills. A machinery plant may purchase dozens or hundreds of steel components from multiple suppliers, and embedded emissions in those inputs may outweigh the plant’s own direct emissions. If downstream products are brought into CBAM, compliance would require more than tracking fuel consumption and emissions at the manufacturing site.
Linking covered inputs to finished product families under MRV
Companies would need reliable bills of materials, supplier information, emissions values and consistent allocation methods connecting covered inputs to finished product families. Manufacturers should be able to identify quantities of covered steel used in each product family, the installations supplying those materials, and relevant emissions data. Where one precursor contributes to multiple outputs, allocation must follow a consistent and auditable methodology.
Enterprise resource planning (ERP) systems and procurement master data are identified as important elements for monitoring, reporting and verification (MRV). Product-level accounting is also described as relevant for investment decisions for both steel producers and downstream manufacturers. The approach would focus on carbon costs at the product and production-process level rather than relying only on corporate-average targets.
Under CBAM methodology, improvements within the regulated boundary may change calculated liability, while other decarbonisation measures could improve wider environmental performance without producing the same immediate effect on CBAM costs. A documented link between an engineering measure and its potential certificate impact is described as a way for management to compare investments. Benefits should be assessed separately to avoid double-counting emissions reductions.
Supplier data needs could affect make-or-buy decisions
The distinction between corporate figures and product-level outcomes matters when comparing production routes, suppliers and capital expenditure. A lower corporate emissions figure does not automatically translate into a corresponding reduction in CBAM liability for every product. A downstream extension could also change relative economics of manufacturing inside and outside the EU.
European producers already facing carbon costs under the EU Emissions Trading System (EU ETS) may gain additional protection against imports of carbon-intensive components. Non-EU manufacturers using lower-emission steel could remain competitive if they supply robust emissions evidence. Reliance on default values may become more commercially disadvantageous if applicable mark-ups increase from 2028.
Suppliers with product-specific data and verifiable production records could be better positioned to demonstrate emissions performance to EU customers. For purchasing teams, supplier selection could increasingly depend on substantiating origin, quantity, production route and emissions of steel incorporated into a product. Carbon data quality could therefore become part of supplier qualification and commercial negotiations.
Industrial records and traceability across business functions
The control system described relies on established industrial records wherever possible, including heat numbers, production orders, warehouse movements, fuel-meter readings and ERP material issues. A separate CBAM spreadsheet may support calculations but should not be treated as the sole record for how material quantities and emissions have been allocated. Reported figures need to connect to underlying commercial and production evidence so that verifiers can trace claims through relevant records and calculation methodology.
The same information should support purchasing, production, customs, finance and compliance functions. Maintaining disconnected datasets increases the risk that changes in supplier details, production routes, prices or regulatory treatment lead to inconsistent figures across a business. Western Balkan manufacturing is described as closely integrated with EU automotive, electrical equipment and machinery supply chains.
Western Balkans exporters face broader downstream exposure
Extending CBAM downstream could affect a wider group of exporters than primary steel and aluminium producers alone. Companies with high metal content, narrow margins and customers able to switch suppliers quickly may be particularly exposed. Preparation is described as beginning with screening relevant CN codes, ranking products by EU sales and metal intensity, and requesting CBAM-ready data from strategic steel suppliers.
Investment in data architecture is described as remaining useful even if the final list of covered downstream products ends up narrower than proposed. EU customers are also described as increasingly seeking comparable information through procurement requirements and product-carbon programmes. This creates reasons to strengthen material traceability beyond any single regulatory change.
Evidence gaps addressed before reporting deadlines
A practical implementation test is whether a company can explain the same emissions result to both a verifier and a commercial manager using the same underlying records. The minimum decision file should connect CN code, precursor, process boundary, production record and verified emissions value while identifying who approves each assumption. The file should also define a documented fallback where preferred accounting cannot be substantiated.
This fallback alternative may be less commercially attractive but establishing it in advance is described as reducing risk if actual exposure is discovered only after a verifier review or customs authority challenge involving an authorised CBAM declarant. As financial implications develop through the decade, unresolved evidence gaps could become recurring costs tied to price adjustments, changes in verification requirements and management reporting. The key planning question is whether exposure has been assessed before the relevant transaction or reporting period is finalised.