Long-term steel supply agreements between European buyers and non-EU producers are facing additional contractual requirements as CBAM introduces carbon-related costs that cannot necessarily be established when a shipment is delivered. The final economic value of imported steel increasingly depends on verified embedded emissions, the applicable EU ETS-linked certificate price and adjustments reflecting the phase-out of free allocation.
Under the mechanism, importers may face financial obligations determined months after physical delivery, particularly where emissions verification or the final certificate requirement is established later. This is making the allocation of carbon liabilities, responsibility for emissions documentation and contractual price adjustments increasingly important elements of international steel trade.
Emissions documentation and supplier responsibilities
One of the central contractual issues is the responsibility of steel producers for providing the information required to calculate embedded emissions. Although the EU importer remains responsible for the relevant CBAM declaration, the producing installation holds many of the operational records needed to establish the carbon intensity of its products.
Supply agreements should therefore identify the manufacturing installation, production route, applicable reporting methodology, expected verification status and documentation requirements for relevant precursor materials.
Contracts also need to establish deadlines for submitting emissions information and procedures for correcting inaccurate or delayed declarations after customs clearance. Without clearly assigned responsibilities, importers may face compliance exposure arising from information controlled by overseas producers.
Emissions performance warranties represent another important contractual consideration. An exporter may offer steel manufactured through a lower-emissions production route, but the buyer requires calculations that comply with the applicable CBAM methodology.
Where verified embedded emissions exceed the level guaranteed when the purchase agreement was concluded, the contract should establish how the resulting additional carbon obligation is allocated. Possible arrangements include supplier compensation, shared liability or renegotiation of the purchase price.
Such warranties need clearly defined boundaries. General statements about carbon neutrality do not necessarily establish the emissions figure relevant to the payable CBAM calculation.
CBAM certificate prices require transparent contractual indexation
Carbon-price movements are creating another source of potential disputes between steel suppliers and European importers.
For 2026 imports, the EU applies a published quarterly CBAM certificate price, while weekly pricing applies from 2027. Contracts can link the carbon component of the transaction to these official reference periods instead of relying on an unrelated EU Allowance (EUA) futures quotation.
Separating the different elements of the transaction is equally important. Agreements should identify the base steel price, transportation charges, customs duties and carbon-related payments independently, allowing importers to reconcile commercial invoices with their eventual CBAM compliance costs.
This approach also provides a clearer basis for allocating the financial consequences of changes in the applicable carbon-price reference between the time of contracting and the completion of the compliance process.
Verification rights must balance compliance and industrial confidentiality
Access to emissions documentation can create tensions between regulatory requirements and the protection of commercially sensitive manufacturing information.
European buyers may need evidence suitable for examination by an accredited verifier or competent authority. However, this does not automatically justify unrestricted access to a steel mill’s production formulas, customer information or cost structure.
Contracts can establish controlled data-sharing arrangements through secure data rooms, authorised recipients, defined information-retention periods and protected transfer procedures.
The involvement of intermediary traders adds another contractual layer. Where a trading company purchases steel from a mill and subsequently resells it to an EU importer, emissions warranties and documentation obligations need to remain enforceable throughout the transaction chain.
Back-to-back contractual guarantees can ensure that information promised by the intermediary to the importer is supported by corresponding commitments from the actual producing installation.
Agreements should also establish procedures for resolving disagreements over emissions allocation and reporting inconsistencies. A defined correction mechanism and access to an independent technical expert can provide a framework for resolving disputes without automatically treating every discrepancy as a conventional product-quality claim.
Regulatory changes introduce uncertainty into long-term agreements
The evolving EU regulatory framework creates additional considerations for contracts covering several years of steel deliveries.
The European Commission has proposed changes to the EU ETS free-allocation phase-out schedule and an extension of CBAM to selected downstream products. These remain proposals and should not be treated as adopted legislative requirements when calculating existing contractual obligations.
Nevertheless, long-term supply agreements need provisions addressing potential changes to covered product categories, emissions benchmark methodologies and the timetable for withdrawing free allocation.
Contracts should distinguish between ordinary movements in market prices and additional costs resulting from regulatory amendments. Clearly defined adjustment mechanisms can prevent either party from reopening the entire steel price without an objective contractual basis.
The treatment of future regulatory changes is particularly relevant where agreements cover products or supply arrangements that could become subject to additional CBAM requirements.
Credit exposure extends beyond conventional steel receivables
Financial arrangements also need to reflect the additional liabilities created by emissions warranties and certificate obligations.
Steel exporters may be required to provide bank guarantees covering their contractual commitments concerning emissions data. Importers, meanwhile, may need financing for CBAM certificates purchased in 2027 in respect of 2026 transactions.
Credit departments therefore need to monitor contingent carbon-related claims alongside conventional trade receivables and payment obligations.
Where intermediary traders operate between overseas mills and European buyers, financing arrangements must preserve the contractual chain of emissions evidence and liability. The transfer of ownership through successive sales should not interrupt the ability to obtain the information or enforce the warranties required for CBAM compliance.
For international steel transactions, contractual certainty will increasingly depend on clearly identified emissions inputs, recognised carbon-price references, allocated responsibilities and procedures for correcting discrepancies. These provisions provide the basis for determining the final carbon-related cost of imported steel across the supply chain.
