The company legally responsible for reporting emissions and surrendering Carbon Border Adjustment Mechanism (CBAM) certificates may be several transactions removed from the industrial buyer that ultimately uses imported material. That separation means import statistics alone cannot show who bears the carbon cost, or whether it can be passed through the supply chain.
A steel coil, for example, may be declared at an EU border by a trader, processed by a service centre, turned into vehicle components and sold to an original equipment manufacturer. The authorised CBAM declarant reports embedded emissions and surrenders certificates, but the economic cost may fall on another company.
Contracts can determine how that cost moves. An importer may be entitled to recover CBAM costs from its buyer, while a processor may pass some of the increase to a component manufacturer. But a firm may have to absorb the charge if it has fixed-price contracts, lagged indices or competing suppliers that constrain pass-through.
Tracing materials through processors and customers
In aluminium, European rolling mills and extruders turn primary metal or semi-finished products into sheet, profiles and components for automotive, packaging, aerospace and building markets. Novelis describes rolling and recycling operations in Germany serving automotive and beverage customers; Constellium and other processors publish selected customer relationships.
Those disclosures establish industrial linkages, but do not prove that a specific shipment recorded by customs came from a particular non-EU smelter and reached an identified customer. Corporate disclosures, customs data, shipping records and supply contracts each show only part of the chain. Customer relationships are not shipment-level evidence.
Responsibility and access to emissions records also depend on how material is procured. An importer may buy on its own account, use an indirect customs representative or procure material for an associated company; each arrangement affects who handles the declaration and can access emissions information.
A proposed market-intelligence approach would rank products and origin markets by value and mass, identify the firms physically handling the material, then establish which buyers depend on it and who has the contractual right to pass through a carbon surcharge. A useful register would connect the eight-digit CN code to the importing legal entity, non-EU installation, receiving warehouse, intermediate processor, documented customer and pricing terms. Without that sequence, a list of large manufacturers risks being presented without evidence as a list of CBAM importers.
