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    CBAM Preparation: Supplier Perspective

    Key issues suppliers exporting to Europe need to pay attention to for CBAM.

    Founder, SBTi Certified Expert15 June 2025
    Supply chain and export

    CBAM Preparation: Supplier Perspective

    The EU Carbon Border Adjustment Mechanism (CBAM) is a regulation that requires declaration of carbon content and payment of carbon price for imports of certain products into the European Union. CBAM is an important component of the EU's European Green Deal and "Fit for 55" package.

    For exporters in Turkey and other non-EU countries, CBAM means new reporting requirements and potential cost impacts. In this article, we cover CBAM scope, timeline, calculation methodology, and preparation steps.

    Products Covered by CBAM

    CBAM covers certain carbon-intensive sectors. These sectors are under EU ETS and carry carbon leakage risk.

    Covered product categories

    Steel and iron:

    • Pig iron and steel
    • Iron and steel products (pipes, profiles, plates)
    • Ferroalloys

    Aluminum:

    • Primary aluminum
    • Aluminum products

    Cement:

    • Clinker
    • Cement

    Fertilizers:

    • Ammonia
    • Nitric acid
    • Urea
    • Mixed fertilizers

    Electricity:

    • Direct electricity imports

    Hydrogen:

    • Hydrogen and hydrogen-based products

    CN Codes (Customs Tariff Numbers)

    Each product category is defined by specific CN (Combined Nomenclature) codes. Exporters should determine under which codes their products are classified.

    Example CN codes:

    • 7206-7229: Iron and steel products
    • 7601-7609: Aluminum products
    • 2523: Cement
    • 2814, 3102, 3105: Fertilizers

    Transition Period Timeline

    CBAM is being implemented in phases.

    Transition period (October 1, 2023 - December 31, 2025)

    Only reporting is mandatory during this period. No financial obligation.

    Reporting requirements:

    • Submission of quarterly CBAM report
    • Quantity of imported products
    • Embedded emissions of products
    • Carbon price paid in country of origin (if any)

    Reporting dates:

    • Q4 2023 report: By January 31, 2024
    • Subsequent reports: Within one month after each quarter end

    Full implementation period (after January 1, 2026)

    Financial obligations begin. CBAM certificate purchase linked to EU ETS carbon price is required.

    Phased transition: CBAM obligation increases as free allocations decrease in EU ETS. Starts at 2.5% in 2026, reaches 100% in 2034.

    Embedded Emission Calculation Methods

    Embedded emissions are greenhouse gas emissions occurring during product manufacturing.

    Direct emissions

    Emissions directly occurring in the production process.

    Sources:

    • Fuel combustion (natural gas, coal, fuel oil)
    • Process emissions (chemical reactions)
    • Process gas use

    Calculation: Direct emissions = Fuel consumption × Emission factor + Process emissions

    Indirect emissions

    Emissions from production of purchased electricity and heat.

    Electricity emissions:

    • Electricity consumption (MWh) × Grid emission factor (tCO2/MWh)

    Heat/steam emissions:

    • Heat consumption (GJ) × Heat production emission factor

    Note: Inclusion of indirect emissions in CBAM varies by product category. Only direct emissions are reported for some products.

    Default values vs actual data

    CBAM offers two different data approaches.

    Default values:

    • Reference values published by the EU Commission
    • Can be used when actual data cannot be provided
    • More flexible use during transition period
    • Limitations will apply in full implementation period

    Actual (specific) data:

    • Facility's own measurements and calculations
    • More accurate and potentially lower values
    • May require verification
    • Should be preferred in the long term

    Flexibility during transition period: Default values or alternative methodologies can be used in initial reporting periods. However, actual data expectation will increase over time.

    Precursor (Predecessor Product) Emissions

    A precursor is an intermediate product used in the production of a CBAM-covered product.

    Precursor concept

    Example: In steel production, there is a chain: iron ore → pig iron → steel. Pig iron is a precursor for steel.

    CBAM approach: Precursor emissions must be included in the embedded emissions of the final product.

    Precursor emission calculation

    Formula: Total embedded emissions = Direct emissions + Indirect emissions + Σ(Precursor emissions × Usage quantity)

    Data sources:

    • Specific data from precursor supplier
    • Default precursor emission values

    Reporting Requirements and Forms

    CBAM report content

    General information:

    • Importer identification information
    • Reporting period
    • Country of origin

    Product information:

    • CN code and product description
    • Import quantity (tons)
    • Embedded emissions (tCO2e/ton product and total tCO2e)

    Production facility information:

    • Facility name and location
    • Production process description
    • Calculation methodology used

    Carbon price:

    • Carbon tax or ETS cost paid in country of origin (if any)

    EU Commission transitional registry

    The EU Commission has established a transitional registry for CBAM reporting. Reports are submitted through this system.

    Verification Expectations

    During transition period

    Third-party verification is not mandatory during the transition period. However, data reliability is important and audit risk exists.

    Full implementation period

    After 2026, verification of embedded emission declarations by accredited verifiers can be expected.

    Verification requirements:

    • Compliance with ISO 14064-3 or similar standards
    • Accredited verification body
    • Annual verification cycle

    Supply Chain Communication

    CBAM requires data sharing throughout the supply chain.

    Importer-exporter communication

    EU importers will request embedded emission data from their suppliers.

    Requested information:

    • Product-specific emission value (tCO2e/ton)
    • Calculation methodology explanation
    • Production facility information
    • Energy sources used

    Data sharing format

    The EU Commission is developing standard data sharing templates. Exporters should comply with these formats.

    Confidentiality considerations

    Emission data may contain production process details. Confidentiality agreements and aggregated data sharing should be considered.

    Cost Impacts

    Direct costs (after 2026)

    CBAM certificate cost: CBAM certificate price is linked to EU ETS carbon price. As of 2024, EU ETS price is in the 60-90 EUR/tCO2 range.

    Example calculation:

    • Product embedded emissions: 2 tCO2/ton product
    • EU ETS price: 80 EUR/tCO2
    • Unit CBAM cost: 2 × 80 = 160 EUR/ton product

    Deduction: Carbon tax or ETS cost paid in country of origin can be deducted.

    Indirect costs

    Data collection and reporting:

    • Internal resource time
    • Consulting services
    • Software and systems

    Verification:

    • Third-party verification fee

    Process improvement:

    • Emission reduction investments
    • Energy efficiency projects

    Preparation Timeline Recommendations

    Immediate steps (now)

    1. Identify products covered by CBAM
    2. Assess current emission data status
    3. Monitor requests from EU customers
    4. Inform internal stakeholders

    Short-term (3-6 months)

    1. Conduct product-based emission calculations
    2. Establish data collection procedures
    3. Determine customer communication format
    4. Compare with default values

    Medium-term (6-12 months)

    1. Document calculation methodology
    2. Improve data quality
    3. Collect data from precursor suppliers
    4. Evaluate emission reduction opportunities

    Long-term (12+ months)

    1. Transition to specific data use
    2. Prepare for verification
    3. Reflect carbon price impact in pricing
    4. Plan low-carbon production investments

    Turkey Perspective

    Turkey-EU trade relationship

    Turkey has a Customs Union relationship with the EU. There is significant export volume in products covered by CBAM.

    Main export items:

    • Steel and iron products
    • Aluminum products
    • Cement

    Carbon pricing in Turkey

    There is no ETS or carbon tax in implementation in Turkey yet. This means CBAM deduction cannot be made and full cost burden applies.

    Potential developments:

    • Turkey ETS preparations are ongoing
    • Carbon pricing aligned with EU could enable CBAM deduction

    Competitive impact

    CBAM may create cost disadvantage for Turkish exporters. On the other hand, companies capable of low-carbon production may gain competitive advantage.

    Conclusion

    CBAM is bringing new reporting and cost requirements for non-EU producers. The transition period provides an opportunity for preparation.

    Critical steps for suppliers:

    • Conducting scope assessment to determine which products are affected
    • Developing embedded emission calculation capacity
    • Establishing data sharing format with EU customers
    • Planning transition to specific data use in the long term

    Early preparation strengthens customer relationships and enables management of cost impacts after 2026. Low-carbon production capacity can translate into competitive advantage in the CBAM environment.

    Tags

    CBAM
    tedarikçi
    ihracat
    emisyon verisi

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