Alex Wang – Senior Quality & Compliance Engineer at Welle Inspection, with 8+ years of experience in EU carbon regulations and CBAM compliance. Alex has successfully guided over 150 EU importers and China-based suppliers through CBAM reporting and emissions data collection, making him one of the most experienced practitioners in the field.
For EU importers, CBAM creates significant challenges: reporting accurate, site-specific carbon reporting from imported goods is complex, supplier data is often incomplete, and compliance mistakes can lead to fines, higher costs, and reduced competitiveness. Managing these requirements across multiple suppliers and product lines puts pressure on procurement, operations, and reporting teams.
Welle Inspection helps EU importers navigate these challenges by providing practical, supplier-focused CBAM compliance support services. We assist in collecting reliable CBAM data from Chinese suppliers, structuring it for reporting, and ensuring calculations are traceable and consistent—enabling importers to meet CBAM obligations efficiently while maintaining CBAM supply chain compliance and competitiveness.
What is CBAM (Carbon Border Adjustment Mechanism)
The Carbon Border Adjustment Mechanism (CBAM) is an EU regulation designed to put a fair price on the carbon emitted during the production of certain carbon-intensive goods imported into the EU. Its goal is to support the EU’s low-carbon transition and prevent carbon leakage.
CBAM functions effectively as a carbon tax or import duty, based on the embedded greenhouse gas emissions of imported goods. Importers of CBAM-covered products must report the emissions associated with their imports and, starting from 2026, purchase CBAM certificates 2026 linked to the carbon price under the EU ETS.
Key Facts:
1.Launch and Scope: CBAM was officially launched in May 2023, covering steel, cement, aluminum, fertilizers, electricity, and hydrogen.
2.Transitional Phase (Oct 1, 2023 – Dec 31, 2025):
- Importers must submit quarterly and annual emissions reports.
- No CBAM taxation applies during this phase.
- Importers require suppliers to provide accurate carbon emission data.
3.Taxation Phase (Starting Jan 1, 2026):
- Importers must purchase CBAM certificatescorresponding to emissions.
- Certificates are tradable, priced based on the average EU carbon market price from the previous week.
- Annual reporting continues, while CBAM payments replace transitional reporting-only obligations
In practice, CBAM is reshaping how EU companies evaluate suppliers, emphasizing traceable emissions, supply chain transparency, and data-driven compliance.
Why the EU introduced CBAM
Climate change is a global challenge requiring global solutions. As the EU raises its climate ambitions, differences in climate policies across countries create a risk of carbon leakage—where EU-based companies relocate carbon-intensive production abroad, or where imported goods with higher emissions replace EU products.
The Carbon Border Adjustment Mechanism (CBAM) addresses this risk by ensuring that a price is paid for the carbon embedded in imported goods, making it equivalent to the carbon cost of domestic production. This mechanism helps maintain the integrity of the EU’s climate objectives while remaining compatible with WTO rules.
CBAM is part of the EU’s broader Green Deal and climate strategy. By imposing a carbon price on certain energy-intensive imports, it levels the playing field between EU and non-EU producers and encourages cleaner production methods worldwide. Its primary goals are to prevent carbon leakage, incentivize low-carbon manufacturing globally, and protect European companies from competitive disadvantages caused by carbon-intensive imports.
Who Is Impacted by CBAM Regulations?
CBAM focuses on carbon-intensive commodities, which means that any business importing or exporting these goods to the EU will be affected, either directly or indirectly. EU importers will be required to declare the embedded emissions of these products, which in turn means that non-EU suppliers will need to provide accurate carbon data for the goods they sell.
Currently, CBAM applies to aluminium, cement, electricity, fertiliser, hydrogen, iron, and steel, though its scope may expand over time. This casts a wide net across global supply chains. Examples include a German car manufacturer importing aluminium from China, a Danish offshore wind developer sourcing iron and steel from South Africa, a Brazilian fertiliser supplier exporting to Romania, an Algerian cement producer selling to French construction companies, and a Mexican company providing hydrogen to multiple EU customers.
For EU importers, this underscores the importance of collaborating with non-EU suppliers to gather site-specific emissions data and maintain traceable, reliable reporting. By doing so, businesses can reduce CBAM compliance risks, ensure accurate reporting, and support long-term supply chain transparency.
Why CBAM is a supply chain issue
Under EU CBAM regulation, emissions data must be linked to specific production sites and manufacturing installations, not just product categories. For imports such as steel, automotive components, machinery, and industrial parts, EU importers rely heavily on:
- CBAM data from Chinese suppliers
- Plant-level emissionsand installation-specific data
- Consistent CBAM calculation logic
When this data is missing or inconsistent, importers face higher compliance risk, reporting delays, and increased operational costs. CBAM readiness is therefore not just a regulatory requirement—it is a supply chain challenge.
Ripple effects across the EU value chain:
- CBAM-covered EU industries: Removing free allowances and reducing the EU ETS cap affects producers in covered sectors, lowering value added by ~1.06%. CBAM partially offsets (~0.85%) by improving domestic competitiveness.
- Downstream sectors: Industries relying on inputs from CBAM-covered sectors face higher input costs if supplier data is incomplete, reducing competitiveness, especially in machinery & electrical equipment.
- Aggregate effects: Across the EU economy, GDP impacts remain similar (-0.29%), as gains/losses balance.
In practice, data gaps at supplier sites in China directly translate into operational and financial challenges for EU importers. Accurate, plant-level emissions reporting is essential to manage compliance, avoid cost overruns, and maintain competitiveness.
Quickly Prepare Your CBAM Supply Chain Data
Typical CBAM Challenges for EU Importers
- Data Collection Challenges:Many suppliers cannot provide complete CBAM factory emissions China or production site emissions, including energy use, material consumption, and installation-specific data. This often forces importers to rely on CBAM default emission values, increasing compliance risk and reporting delays.
- Complex Calculation Methods: CBAM accounting rules are highly technical, covering direct and indirect emissions. Inconsistent plant-level emissions data or site-specific carbon reporting from Chinese suppliers can lead to miscalculations, triggering fines or audit queries.
- Talent Shortage: There is a lack of professionals skilled in carbon accounting, EU regulations, and CBAM data from Chinese suppliers, making it difficult for importers to process supplier emissions dataaccurately and on time.
- Verification Pressure: CBAM reports must be certified by EU-accredited auditors. Incomplete or inconsistent CBAM reporting China manufacturing data increases the risk of failed audits and delayed certificate purchase.
- Competitiveness Impact: Missing or high default emissions data, particularly for CBAM steel products from China or machined steel parts, raise CBAM costs, reduce price competitiveness, and risk lost market share to “greener” suppliers.
Typical CBAM challenges with China suppliers
EU importers often face several challenges when working with China-based suppliers to meet CBAM reporting requirements. These challenges highlight why structured, supplier-focused CBAM readiness is essential:
1. Limited understanding of CBAM regulations at factory level
Many Chinese manufacturers are unfamiliar with the full scope of CBAM in the EU context. Common gaps include:
- How CBAM affects export customers
- The level of documentationEU importers may request
- Requirements for installation-level emissions reporting
This lack of awareness can cause friction during CBAM reporting cycles, leading to delays or incomplete submissions.
2. Data gaps affecting CBAM calculation
Even when suppliers understand CBAM, data collection is often incomplete or inconsistent. Typical problems include:
- Missing energy usage databy production process
- Inconsistent production volume records
- Unclear assumptionsused in emissions calculations
Without accurate data, CBAM calculations are difficult to justify, increasing compliance risk for EU importers.
3. Difficulty meeting CBAM reporting requirements
When suppliers cannot provide usable data:
- CBAM reporting delaysoccur
- Default assumptions increase cost risks
- Internal compliance reviews become more complex
4. Implications for exporters to the EU
CBAM is pushing EU companies to decarbonise their supply chains, meaning non-EU suppliers are increasingly evaluated based on emissions intensity.
- Exporters will likely need to provide product-level emissions datato support EU customers’ reporting.
- Although exporters do not pay CBAM certificates directly, carbon-intensive products may become less competitivein the EU market.
- To remain competitive, suppliers should minimise embodied emissionsand innovate by offering low-carbon, energy-efficient products.
By addressing these challenges, China-based suppliers can support EU importers in CBAM compliance, reduce reporting friction, and gain a competitive advantage in the EU market.
How Welle Inspection supports CBAM readiness
With deep expertise in supply chain data and emissions management, Welle Inspection helps EU importers and China-based suppliers prepare practical, site-specific emissions data for CBAM reporting. Our role is technical and advisory, focusing on supplier-level readiness rather than regulatory certification.
Practical support for CBAM compliance
We assist suppliers and importers in key areas, including:
- Factory-level process and data mapping – identifying production steps, energy use, and emissions sources
- Guidance for emissions data collection – helping suppliers capture accurate, installation-specific information
- Review of CBAM calculation logic (non-certification) – ensuring calculations are consistent, traceable, and explainable
- Structuring supplier data for importer use – preparing datasets for integration into CBAM reporting tools
- Acting as a technical bridge – facilitating smooth communication between EU compliance teams and non-EU suppliers
Enabling informed supply chain decisions
By improving data clarity, consistency, and explainability, Welle Inspection helps EU importers:
- Demonstrate reasonable professional effort in CBAM compliance
- Reduce reporting delays and compliance risks
- Engage suppliers effectively to ensure accurate emissions reporting
Through this practical, supplier-focused approach, importers gain confidence in their CBAM readiness while suppliers learn to provide traceable, reliable emissions data—all without over-promising regulatory outcomes.
Welle Inspection CBAM Services: What We Do and Don’t Do
What We Do | Customer Benefit | What We Do NOT Do |
CBAM data preparation at supplier level | Collect site-specific emissions data from non-EU suppliers, structured for EU reporting. ✅ Reduces compliance risk and reporting delays. | ❌ Provide official CBAM certification |
Improve transparency of production emissions | Analyze energy use, material consumption, and process emissions. ✅ Enables confident supplier assessment and traceable reporting. | ❌ Guarantee CBAM compliance outcomes |
Assist EU importers in interpreting supplier data | Review datasets for consistency and explain assumptions. ✅ Saves time, reduces audit risk, and ensures coherent reporting. | ❌ Replace EU-accredited verifiers |
Provide practical CBAM guidance | Advise on data collection, calculation logic, and reporting workflows. ✅ Helps maintain long-term CBAM readiness and supply chain transparency. | ❌ Assume legal or regulatory responsibility |
Note:Welle Inspection provides CBAM data preparation and carbon footprint reporting services.This service does not constitute official CBAM certification, nor does it involve purchasing CBAM certificates on behalf of the client.Responsibility for submission, compliance, and CBAM certificate procurement remains with the EU importer.
Frequently Asked Questions (FAQ) on CBAM
What is CBAM?
CBAM is an EU regulation that puts a price on the carbon emissions embedded in certain imported goods to support the EU’s low-carbon transition and prevent carbon leakage.
Does CBAM apply to finished goods?
Mostly to carbon-intensive raw and semi-finished materials. Finished goods may be affected if they contain CBAM-covered materials.
How is CBAM calculated?
Based on embedded emissions using either supplier data or EU default values. Methods include calculation-based (energy/fuel use) or measurement-based (direct emissions at the plant).
Is CBAM a tax?
Not exactly. From 2026, importers buy CBAM certificates for emissions, similar to a carbon price tied to the EU carbon market.
When does CBAM start?
Transitional phase: Oct 2023 – Dec 2025, reporting only.
Full phase: Jan 1, 2026, CBAM certificates required.
What penalties apply for non-compliance or misreporting under CBAM?
Under the 2025 simplification package, penalties may be reduced in cases of minor exceedances of the de minimis threshold (up to 10%) or when proven errors result from verified third-party data
Contact / discussion
If your team is increasing attention to CBAM, facing reporting challenges, or reviewing CBAM compliance risks, we are available for practical discussion and supply chain data support.
👉 Contact Welle Inspection, the company with the most CBAM compliance cases in China, to discuss CBAM readiness and supplier-side data preparation.