Steel processors supplying the European Union face a growing need to account for material utilisation when calculating embedded emissions under the Carbon Border Adjustment Mechanism (CBAM). European Commission guidance clarifies that, for steel products manufactured from CBAM precursors, the emissions calculation uses the precursor mass before cutting, rather than only the mass retained in the finished product.
Cutting falls outside the relevant CBAM system boundary for iron and steel transformation, but discarded material cannot simply be excluded from the precursor calculation. The full mass entering the production process remains the basis for allocating embedded emissions, meaning lower conversion yields can increase emissions per tonne of saleable output without the cutting operation itself adding counted emissions.
Material losses affect emissions per tonne of finished steel
The distinction has direct implications for steel fabricators outside the EU. A facility using 1.10 tonnes of steel precursor to manufacture one tonne of finished product cannot remove the emissions associated with the remaining 0.10 tonnes of material trimmed away from its CBAM calculation.
The emissions embodied in the full quantity of precursor entering production must still be accounted for under the applicable CBAM methodology. Consequently, material utilisation becomes relevant not only to metal costs but also to the embedded emissions allocated to each tonne of finished output.
For Serbian, Turkish and other Southeast European processors, cutting plans, nesting efficiency, scrap recovery and enterprise resource planning (ERP) records are therefore relevant to CBAM preparation. Evidence must establish both the quantity of precursor entering production and the quantity of CBAM-covered output generated from it.
Certificate prices add a financial dimension to conversion efficiency
The implications arise as Europe’s steel market undergoes changes linked to trade restrictions, investment and carbon costs. On 13 October 2026, EUROFER reported that approximately 10 million tonnes of European crude steelmaking capacity had resumed production during 2026.
The industry group also reported at least EUR 3.4 billion in investment decisions, with a further EUR 2.4 billion expected by the end of the year. EUROFER linked the recovery to the EU’s tighter trade framework, which limits tariff-free imports and applies a 50% tariff to imports exceeding the quota.
The carbon-cost implications of precursor allocation can be illustrated using the Q3 2026 CBAM certificate reference price of EUR 82.32 per tonne of CO₂ equivalent. At that reference price, differences in the emissions allocated to finished products can create measurable landed-cost differences across high-volume supply contracts.
The final payable amount also depends on the applicable free-allocation adjustment and any eligible carbon price effectively paid in the country of origin. Nevertheless, the underlying production and material-flow data determine the starting emissions position.
Procurement decisions increasingly depend on material utilisation
For EU buyers comparing otherwise similar suppliers, conversion yield can become an additional procurement consideration. Better material utilisation can reduce metal costs while also lowering the quantity of precursor emissions allocated to each tonne of saleable finished product.
The relevant operational evidence extends beyond furnace emissions to include precursor quantities, cutting losses, output volumes, scrap recovery and the records linking these figures. For steel suppliers seeking to demonstrate their emissions performance under CBAM, reliable production data must support the calculation throughout the manufacturing process.
As CBAM-related costs become part of import economics, material yield and carbon intensity are increasingly connected variables in the competitiveness of steel processors supplying the EU market.
