Long-term supply contracts for steel and aluminium components are facing additional pricing uncertainty as the EU negotiates a wider scope for the Carbon Border Adjustment Mechanism (CBAM). Suppliers and buyers are being asked to consider how changes in product coverage could affect orders priced today but delivered under different regulatory conditions.
In CBAM compliance, the legal obligation rests with the relevant EU authorised CBAM declarant. Contract terms may allocate economic costs and information duties between parties, but they do not automatically shift that statutory role to an overseas manufacturer.
Failure to separate regulatory responsibility from contractual cost allocation can lead to disputes involving compliance, documentation, and payment. The drafting approach is therefore focused on aligning contractual mechanisms with the responsibilities tied to CBAM declarations.
Product coverage and CN codes in carbon clause drafting
A robust carbon clause begins by identifying the relevant products and their Combined Nomenclature (CN) codes. Contract language should specify whether it covers obligations already within CBAM scope, products later added to that scope, or both categories.
Broad references to carbon-related costs can capture expenses unrelated to the supplied components. That can leave neither side with a reliable basis for pricing the agreement, particularly when determining which shipments could trigger additional costs.
The contract should also distinguish between obligations under the current framework and exposure linked to proposed downstream additions. Future changes should be handled without treating proposals as if they were already final law.
Cost-adjustment methods for CBAM-related pricing changes
Pricing provisions are expected to specify the evidence and calculation method used for any CBAM-related adjustment. Variables that may be referenced include the recognised embedded-emissions value, the applicable certificate price, and adjustments required under the relevant methodology.
Where final calculations cannot be completed at the time contract prices are agreed, parties may use a provisional estimate followed by reconciliation. Such clauses typically define supporting documents, settlement timing, and how discrepancies are treated.
The mechanism should also prevent duplicate cost recovery. Any adjustment needs to distinguish the actual cost being allocated from amounts already included in the purchase price or recovered through another contractual mechanism.
Emissions data warranties and verification responsibilities
Emissions data warranties require detailed drafting on what records must be provided and by when. A supplier can undertake to deliver specified documentation by an agreed deadline and cooperate with reasonable verification requests.
The supplier should avoid guaranteeing a regulatory outcome that depends on upstream producers, actions by the EU declarant, or future changes to calculation methodology. The contract should identify which information must be provided, its required format, the reporting period, and procedures for correcting errors.
This structure helps distinguish between missing documentation deadlines and materially inaccurate emissions information. It also sets out how issues are handled when upstream data are delayed, unavailable, or when an emissions declaration is incorrect.
Supplier substitution controls and allocation of verification costs
Changes in metal sourcing can alter emissions information associated with a component. Even technically equivalent material from another mill may carry a different emissions profile or different supporting documentation.
Supplier-substitution clauses can set notice and approval procedures that allow buyers to manage exposure while still enabling operational changes during temporary shortages. The procedure should clarify which substitutions require prior approval and what information must accompany a proposed alternative.
Verification expenses should be allocated expressly in contracts. Terms need to specify who commissions and pays for verification work, which records may be shared, and how commercially sensitive operating information is protected.
Change-in-law clauses for downstream CBAM expansion
Change-in-law clauses are described as a framework for responding to proposed downstream expansion without assuming final scope or implementation details. Such clauses can trigger review when a supplied product enters applicable CBAM scope or when material changes in calculation rules affect the agreed pricing basis.
The clause should set a timetable for exchanging information and negotiating any adjustment. It should also define consequences if the parties cannot reach agreement.
For multi-year manufacturing programmes, these provisions can be as important as initial purchase price terms. Contracts that leave carbon-cost allocation, evidence requirements, and future regulatory changes unresolved may become difficult to perform once covered shipments enter the EU market.