Carbon Border Adjustment Mechanism and Emissions Trading System: ESG BROADCAST shares key takeaways.
The European Union is set to transition the Carbon Border Adjustment Mechanism (CBAM) from its current transitional phase into a full-scale definitive phase starting January 1, 2026. This landmark regulation serves as a cornerstone of the EU’s “Fit for 55” package, designed to align the carbon price of imported goods with those produced within the EU under the Emissions Trading System (ETS). By creating a level playing field, the European Commission aims to prevent carbon leakage, where production shifts to countries with less stringent climate policies. The transition marks a shift from simple emissions reporting to a mandatory financial obligation for importers.
Under the definitive regime, the procedural requirements for businesses will intensify significantly. Starting in 2026, only “authorized CBAM declarants” will be permitted to import in-scope goods—including cement, iron, steel, aluminum, fertilizers, electricity, and hydrogen—into the EU customs territory. To secure this status, importers must apply to national competent authorities. While reporting becomes annual, the first full year of emissions data for 2026 must be submitted by May 31, 2027. Furthermore, the European Commission has expanded the scope to include 180 downstream products, such as specific steel and aluminum-intensive machinery and appliances, to close loopholes in the industrial supply chain.
The financial core of the Carbon Border Adjustment Mechanism involves the purchase and surrender of CBAM certificates. The price of these certificates will track the weekly average auction price of EU ETS allowances. Importers must ensure that they hold certificates covering at least 50% of the embedded emissions in their imported goods at the end of each quarter throughout the year. However, the first actual surrender of certificates will not occur until 2027, covering the 2026 reporting period. To ensure data integrity, the regulation now mandates independent third-party verification of all embedded emissions, moving away from the flexible default values allowed during the transition.
To support small and medium enterprises, the Commission recently adopted a de minimis threshold. Importers bringing in less than 50 tonnes of Annex I goods annually are exempt from the full reporting and certificate surrender obligations, though this exemption does not apply to hydrogen or electricity. Additionally, the mechanism allows for deductions if a carbon price has already been paid in the country of origin, provided verifiable evidence is supplied. This ensures that international producers who have already invested in decarbonization are not unfairly penalized, effectively encouraging the global adoption of carbon pricing systems.
Strategic significance lies in the fact that the Carbon Border Adjustment Mechanism fundamentally alters the cost structure of global trade for carbon-intensive commodities. For businesses, compliance now requires deep visibility into supplier emissions and a robust internal system for certificate procurement and financial planning. Companies must treat carbon as a new variable in their procurement costs, as the gradual phase-out of free ETS allowances through 2034 will steadily increase the financial burden of CBAM. This shift prioritizes low-carbon suppliers and compels international manufacturers to accelerate their own green transitions to remain competitive in the European market.
Image Credit: World Cement Association
