Aluminium importers face a combination of financial exposures that extend beyond the metal price itself. A single shipment may involve a US dollar-denominated London Metal Exchange (LME) reference, a euro-denominated CBAM liability and a recognised foreign carbon payment made in a third-country currency. Managing these components requires coordination between procurement, carbon compliance and treasury.
Multiple currency and carbon exposures in one shipment
The interaction creates several distinct sources of basis risk. An importer that hedges its LME exposure may remain vulnerable to an adverse EUR/USD movement. A currency hedge does not protect against an increase in the EU Emissions Trading System (EU ETS) allowance price, which influences the CBAM certificate cost.
Hedging the EUA component also leaves another exposure: the value of an eligible foreign carbon payment when converted into euros. If the local currency depreciates against the euro, the recognised deduction may become smaller in euro terms. Changes to the amount or eligibility of the foreign payment can further alter the deduction available under CBAM rules.
Building the hedge around the full import cost
The starting point for risk management is a breakdown of the complete transaction economics. Treasury teams should identify the metal reference price, regional physical premium, freight, carbon liability and any eligible foreign carbon-price deduction as separate components.
Each line needs its own currency exposure and settlement timeline. This allows the importer to distinguish the risks that can be hedged through metal and foreign-exchange markets from those linked to the carbon-price calculation and the applicable CBAM rules.
The timing mismatch is particularly important for long-term supply agreements. LME and foreign-exchange exposures may be fixed several months before the carbon reference applicable to the eventual import period is established. A hedge placed when the purchase contract is signed can therefore leave the importer exposed to subsequent changes in the carbon price.
Banks and integrated hedging structures
Banks can address these exposures through multi-asset structures combining LME instruments, foreign-exchange derivatives and EUA products. Such arrangements can reduce the number of separate mismatches an importer must monitor and manage.
The objective is operational risk reduction rather than financial complexity for its own sake. A coordinated structure can align the metal, currency and carbon components more closely with the underlying purchase and its expected CBAM liability.
Carbon cost attribution in financial reporting
Internal accounting systems must reflect the same separation. When the carbon component is embedded in the physical invoice, companies may struggle to identify whether a deterioration in trading margins resulted from metal prices, currency movements or CBAM costs.
Recording each component separately makes it possible to assess hedge performance, identify the source of cost changes and improve the accuracy of future import quotations.
For aluminium buyers, currency management is consequently becoming an integral part of CBAM exposure management. The euro value of the carbon liability and any eligible foreign carbon-price deduction can change independently of the dollar metal price, making an integrated approach to commodity, foreign-exchange and carbon risk increasingly important.
