Understanding CBAM: What Businesses Need to Know About the Carbon Border Adjustment Mechanism

Introduction

The Carbon Border Adjustment Mechanism, known as CBAM, is one of the main tools introduced by the European Union to connect climate policy with international trade. CBAM is closely linked to the EU Emissions Trading System, the EU ETS, through which certain European industries bear a cost for the greenhouse gas emissions generated by their activities. The mechanism was introduced to reduce the risk of carbon leakage, meaning the relocation of production to countries with less stringent environmental requirements while products continue to be sold in the European market.

For businesses, CBAM is not only an environmental measure. It is also an issue involving imports, customs classification, trade compliance, supply chain management, emissions data, reporting obligations, and operational compliance.

The First Check for Importers

One of the first points businesses should assess is whether the goods they import fall within the product categories currently covered by CBAM.

The products currently covered are primarily carbon-intensive raw materials and selected industrial goods, including:

• iron and steel;
• cement;
• aluminium;
• fertilizers;
• electricity;
• hydrogen.

However, CBAM does not apply simply because a finished product contains one of these materials. The scope of CBAM is determined by the customs classification of the imported product. To determine whether imported goods fall within CBAM scope, businesses should review the product categories and CN codes listed in Annex I of the applicable CBAM legislation. Annex II and the relevant implementing provisions should also be checked where applicable. Companies should also verify the relevant CN or TARIC codes through the EU customs classification tools, including the TARIC database.

This product-scope assessment is an essential operational step. A company should not rely only on a commercial description of the goods or on the general material composition of the final product. The assessment must be linked to the applicable customs classification.

What Is CBAM and Why Was It Introduced?

CBAM stands for Carbon Border Adjustment Mechanism. It is a European Union regulatory framework designed to ensure that certain goods imported into the EU are subject to carbon-related obligations comparable to those applied to goods produced within the Union. The objective is to create more balanced competitive conditions between EU and non-EU producers while encouraging lower-emission production methods across global supply chains. The European Union applies carbon pricing to many domestic industries through the EU ETS. Without a border adjustment mechanism, imported goods could gain a competitive advantage if produced in jurisdictions where carbon emissions are not priced or regulated to the same extent.

CBAM was introduced to:

• reduce the risk of carbon leakage;
• promote fair competition between EU and non-EU producers;
• encourage global industrial decarbonization;
• support the European Union’s climate and emissions reduction targets.

Why CBAM Matters for Importing Businesses

For companies importing goods into the European Union, CBAM may affect several operational areas, including:

• assessment of imported goods and product scope;
• customs classification and product codes;
• monitoring of import volumes and frequency;
• collection of emissions data from suppliers;
• preparation of reporting and compliance documentation;
• management of possible customs or authorization issues.

Import volumes are particularly important. Under the CBAM framework, importers or indirect customs representatives importing more than the single mass-based threshold of 50 tonnes of CBAM goods into the EU may be required to apply for the status of authorized CBAM declarant and comply with the related CBAM obligations.

For this reason, potentially affected companies should consider CBAM during import planning, not only at the time of customs clearance or reporting.

How CBAM Works for Importers

CBAM applies to selected imported goods entering the European Union. Importers are required to report the greenhouse gas emissions embedded in the production of those goods. Depending on the implementation phase and applicable requirements, importers may also be required to purchase CBAM certificates corresponding to those emissions.

In practical terms:

1. goods are produced outside the European Union;
2. embedded emissions associated with production are calculated;
3. goods are imported into the EU;
4. importers fulfil reporting obligations and, where applicable, bear the related carbon cost through CBAM certificates.

The mechanism is designed to mirror, to a certain extent, the carbon costs faced by EU producers under the EU ETS.

Product Code Matters More Than Product Composition

Whether a product is covered by CBAM is generally determined by the applicable customs classification code, such as the CN or TARIC code. This distinction is particularly important for importers.

For example:

• importing raw aluminium products may fall within CBAM scope;
• importing a finished vehicle that contains substantial amounts of aluminium does not automatically make the vehicle subject to CBAM if the customs classification of the finished product is not currently included within the mechanism’s scope.

Businesses should therefore assess imported goods based on customs classification rather than assuming applicability based solely on the materials contained in the final product.

This means that the correct starting point is not only asking whether a product contains aluminium, steel, iron, cement-related materials, fertilizers, hydrogen or electricity-related components. The key question is whether the imported product’s CN or TARIC code is included in the CBAM product scope.

Import Volumes, Emissions Data and Compliance Monitoring

In addition to product classification, businesses should carefully monitor the quantity and frequency of imported goods. Import volumes influence reporting responsibilities, internal processes, compliance planning, and the organization of documentation before importation. They are also relevant for assessing whether the 50-tonne threshold may be exceeded. Another key element is the availability of emissions data. Importers must obtain from suppliers the information required on the emissions embedded in the production of imported goods.

If data is insufficient, incomplete, or unavailable, the company may face difficulties in preparing CBAM reporting and managing CBAM obligations.

To reduce operational risk, companies should establish procedures to:

• identify whether imported goods are covered under CBAM;
• confirm the correct customs classification codes;
• check the relevant product codes in Annex I and, where applicable, Annex II and the implementing provisions;
• verify the applicable CN or TARIC codes through EU customs classification tools;
• monitor whether imports exceed the relevant 50-tonne threshold;
• obtain emissions data from suppliers;
• prepare reporting and compliance documentation before importation.

Operational Risks of CBAM Non-Compliance

Failure to comply with CBAM requirements may result in customs-related complications. The main issues companies should avoid include:

• incomplete reporting;
• insufficient emissions data;
• missing documentation;
• authorization issues;
• delays or difficulties in managing imports.

These risks show that CBAM requires preventive control over imported goods, customs classification codes, supplier data, reporting obligations, import volumes, and documentation available before importation.

CBAM Compliance Priorities for Importing Companies

Companies importing into the European Union goods that may be subject to CBAM should focus on several key steps:

• verify whether imported products fall within the covered categories;
• review Annex I of the applicable CBAM legislation for the list of CBAM goods and CN codes;
• check Annex II and the relevant implementing provisions where applicable;
• verify the applicable CN or TARIC customs classification codes, including through the EU TARIC database;
• avoid assuming CBAM applicability based only on materials contained in a finished product;
• monitor the quantity and frequency of imports;
• assess whether the 50-tonne threshold may be exceeded;
• collect emissions data from suppliers;
• prepare reporting and compliance documentation before importation;
• coordinate procurement, customs and trade compliance, supply chain operations, sustainability, finance, and reporting where necessary.

This coordination is important because CBAM combines customs, environmental, commercial, and documentary elements. Product classification may involve customs and trade compliance, emissions data requires supplier input and procurement support, import planning concerns supply chain operations, and reporting obligations or possible carbon-related costs may involve finance and reporting functions. Preparing in advance helps reduce administrative burden, avoid delays, and strengthen the company’s ability to manage CBAM obligations correctly.

Conclusion

CBAM represents a significant development in the relationship between climate policy and international trade. Rather than focusing solely on domestic emissions, it extends carbon accountability across global supply chains and seeks to align imported products with environmental standards applied within the European Union. For businesses, the key issue is to assess whether their imported products fall within CBAM scope and to manage the related obligations in an organized way. Correct customs classification, product-scope assessment, monitoring of import volumes, collection of emissions data, preparation of reporting and compliance documentation, and understanding applicable CBAM requirements are essential to reducing operational risks.

Companies that integrate CBAM into import planning can better manage compliance, avoid customs-related complications, reduce administrative burden, and maintain safer access to the European market.

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