Proposed adjustments to allowance supply, industrial free allocation and market-stability arrangements could affect both carbon prices and the certificate obligations facing European importers.
ANALYSIS
BRUSSELS — Changes to the European Union Emissions Trading System (EU ETS) are emerging as an important source of financial and regulatory uncertainty for companies subject to the Carbon Border Adjustment Mechanism (CBAM). Although importers must comply with CBAM obligations at the customs and declaration level, the financial exposure is closely connected to the wider EU carbon-market framework.
The EU ETS determines the reference price for CBAM certificates, while its free-allocation arrangements influence the calculation of the residual emissions liability associated with covered imports. Developments in either area can therefore change the cost of CBAM compliance.
Commission proposal puts EU ETS parameters under review
On 17 July 2026, the European Commission proposed a targeted revision of the EU ETS covering industrial competitiveness, free allocation, CBAM and the Market Stability Reserve (MSR).
The legislative process introduces uncertainty for importers assessing future carbon costs. Changes to the allowance market could influence expected EUA prices, while adjustments to free-allocation arrangements could affect the quantity of emissions subject to CBAM obligations.
These developments create two distinct channels through which EU ETS reform can affect importers: movements in the market price of carbon and changes in the regulatory calculation of certificate requirements.
Allowance supply changes can affect CBAM certificate prices
The first transmission channel concerns the price of EU emissions allowances (EUAs). Changes affecting the expected availability and scarcity of allowances can influence the forward carbon-price curve.
A tighter emissions cap or a faster reduction in allowance availability could increase the value of EUAs. Conversely, weaker industrial demand or additional allowance supply could exert downward pressure on prices.
Because CBAM certificate prices are linked to EU ETS auction prices, expectations about future allowance-market conditions also influence importers’ anticipated compliance expenditure.
This connection means that companies importing covered goods must monitor developments in the EU ETS even when their own commercial activities do not involve purchasing allowances directly.
Free-allocation adjustments influence the quantity of liability
The second transmission channel concerns the relationship between CBAM and free allocation for EU industrial producers.
The CBAM framework was designed to be phased in alongside the progressive reduction of free allowances allocated to covered sectors within the EU ETS. Consequently, an importer’s effective certificate obligation cannot be calculated simply by multiplying total embedded emissions by an expected EUA price.
The applicable free-allocation adjustment and the relevant benchmark methodology also influence the emissions quantity against which the CBAM obligation is determined.
This creates a separate regulatory exposure from movements in the carbon market itself. Even if the expected EUA price remains unchanged, modifications to the calculation of residual emissions subject to CBAM could alter an importer’s financial liability.
Financial hedging cannot eliminate legislative risk
The distinction between price exposure and regulatory exposure has direct implications for corporate treasury policies.
Companies can use EUA futures, options and swaps, as well as staged purchasing strategies, to manage expected carbon-price movements. However, these instruments cannot fully protect an importer against legislative changes that alter the quantity of emissions covered by its CBAM obligation.
This creates a basis risk between the financial hedge and the underlying regulatory liability.
Treasury departments therefore need to distinguish market risk from policy risk. Market exposure can be managed through established carbon-market instruments, while regulatory uncertainty requires contractual change-in-law provisions, regular reassessment of hedge ratios and exposure limits.
Companies should also avoid hedging excessive volumes before the applicable regulatory calculation and certificate requirements are sufficiently established.
Banks and traders need combined carbon-risk assessments
The same distinction is relevant to banks and commodity traders evaluating the creditworthiness of companies importing CBAM-covered goods.
A borrower may have hedged its expected EUA price exposure but remain vulnerable to changes in the methodology used to calculate its CBAM liability. A financial assessment based exclusively on the carbon-price hedge could therefore underestimate the borrower’s remaining exposure.
Credit analysis needs to combine EUA price stress tests with regulatory scenarios covering potential changes to free allocation, allowance supply and the CBAM calculation.
For lenders and commodity financiers, carbon exposure consequently involves both a market-price component and a legislative component. Treating the two as a single financial risk could leave important changes in future compliance costs outside the assessment.
