The European Commission’s CBAM Update of 17 December 2025

On 17 December 2025, the European Commission published an important update under the Carbon Border Adjustment Mechanism (CBAM). The updated roadmap, together with 24 newly released official documents, clearly demonstrates that CBAM has evolved from a transition framework into a fully operational system as it moves toward full implementation.

This development makes it clear that, particularly for companies exporting to the European Union, CBAM is no longer merely a regulation to be monitored, but a process that must be actively managed.

What is CBAM?

CBAM (Carbon Border Adjustment Mechanism) is a regulatory instrument of the European Union designed to account for the embedded carbon emissions of imported goods and to assign a cost to those emissions.

Its main objectives are:

• Preventing carbon leakage

• Ensuring fair competition for EU-based producers

• Encouraging low-carbon production

• Establishing an external trade framework aligned with the EU Emissions Trading System (EU ETS)

CBAM therefore goes beyond climate policy and directly impacts trade structures and cost management.

Implementation Phases of CBAM

CBAM is implemented in two main phases:

Transitional Phase (1 October 2023 – 31 December 2025)

• Emissions data for imported goods must be reported

• No financial obligation applies

• Focus on data collection, system setup and preparedness

Definitive System (from 1 January 2026)

• Mandatory purchase of CBAM certificates corresponding to reported emissions

• Certificate prices linked to EU ETS carbon prices

• Incomplete or incorrect reporting may result in significant penalties

The update of 17 December 2025 clearly confirms that the transition to the definitive system is irreversible.

Sectors Covered by CBAM

In its initial phase, CBAM focuses on carbon-intensive sectors:

• Iron and steel

• Aluminium

• Cement

• Fertilisers

• Electricity

• Hydrogen

Products from these sectors require installation-based emissions calculations using standardized methodologies. The updated documents provide greater clarity and practicality, particularly for sector-specific calculation methods.

What Does the 17 December 2025 Update Bring?

The newly published document package by the European Commission clarifies several key areas of the CBAM process:

Emissions Calculation Methodologies

• Clear distinction between direct and indirect emissions

• Defined conditions for the use of default values

• Priority given to actual installation-level data

Reporting and Digital Infrastructure

• Technical guidance for the use of the CBAM Registry

• Standardised reporting templates and data formats

• Requirements for digital system compatibility

Allocation of Responsibilities

• Obligations of EU importers

• Data provision responsibilities of non-EU producers

• Increased importance of transparency across the supply chain

These documents underline that CBAM is no longer a theoretical framework, but a measurable, verifiable and enforceable system.

Implications for Companies in Türkiye

As one of the EU’s key trading partners, Türkiye is among the countries directly affected by CBAM.

Under the new regime:

• Companies without reliable emissions data face significant trade risks

• Carbon costs become part of product pricing

• Carbon management becomes an element of financial planning

For this reason, companies need to:

• Establish emissions measurement infrastructures

• Generate verifiable and traceable data

• Implement digital carbon management systems

The CO2 Manager Approach

CBAM compliance is not limited to reporting obligations.
The real value lies in managing data correctly.

The CO2 Manager approach aims to:

• Systematically collect emissions data

• Ensure regulatory-compliant reporting

• Make carbon costs predictable

• Provide reliable data for strategic decision-making

Conclusion

The CBAM update of the European Commission dated 17 December 2025 clearly demonstrates that the mechanism has entered its full implementation phase.

CBAM is:

• Not merely an environmental obligation

• But a commercial reality

• A cost management issue

• And a competitive factor

When managed with the right data, systems and strategy, CBAM becomes an advantage rather than a risk for companies.

 

Source
European Commission – Carbon Border Adjustment Mechanism

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