Against the backdrop of increasingly stringent compliance supervision under the EU Carbon Border Adjustment Mechanism (CBAM), the accuracy of carbon emission data monitoring and reporting is the foundation for enterprises trading with the EU to fulfill their CBAM obligations.

Attention to detail in data reporting directly determines whether carbon emission reports meet EU regulatory requirements, and is also a critical step where enterprises are prone to misunderstandings in practice.

Based on official CBAM compliance requirements and practical scenarios, this article summarizes three high-frequency errors in data reporting, providing a reference for enterprises to standardize reporting and avoid compliance risks.

Following the simplified regulation updates in late 2025, the lifecycle of a CBAM certificate is defined by four key phases:

Different raw material suppliers (such as steel mills) have obvious differences in energy structure and smelting technology. Even for the same type of raw material, core indicators such as direct carbon emission intensity and electricity consumption per unit product vary, so they cannot be accounted for under a unified standard.

If an enterprise uses raw materials from different suppliers in production, it is strictly prohibited to combine the data of raw materials from different suppliers in carbon emission statistics and CBAM reporting.

Enterprises shall separately list the consumption and corresponding carbon emission data of raw materials for each supplier to ensure full traceability and verifiability of carbon emissions for each batch, in full compliance with CBAM traceability rules.

Accounting for raw material losses in production and processing is one of the most error-prone parts of CBAM data reporting.

Waste is inevitably generated during cutting and processing, resulting in finished product weight being lower than initial input weight. Many enterprises face data distortion due to inconsistent statistical scope.

CBAM has clear accounting rules for such situations: raw material consumption shall be fully counted based on actual input, product emission intensity shall be calculated based on final finished products, and losses during production shall be included in total carbon emissions.

For example, if 10 tons of raw materials are processed into 5 tons of finished products, raw material consumption shall be reported as 10 tons, and emission intensity shall be calculated based on 5 tons of finished products to ensure no omission of carbon emissions from losses, meeting data integrity requirements.

In practice, some enterprises receive requests from customers for carbon emission data of single batches or shipments, which can easily lead to inconsistent accounting methods.

It should be clarified that CBAM calculation and submission of carbon emissions for single batches do not require enterprises to conduct independent accounting for individual orders.

The correct method is: enterprises first calculate the Specific Emission Intensity (SEE) of each product under the unified CBAM methodology, then multiply this standardized intensity by the actual export quantity of the batch to obtain total carbon emissions for the order.

This conversion method complies with CBAM standardized accounting requirements, ensures consistent data口径 across batches and orders, and avoids data deviations caused by separate calculations.

CBAM compliance requirements continue to tighten. Detailed control over traceability, loss accounting, and batch statistics is essential to ensuring the compliance of carbon emission data.

As a professional team focused on CBAM compliance services, SKYCO2 provides policy interpretation, data accounting guidance, and efficient solutions for reporting challenges. We help enterprises accurately meet statistical standards, respond to EU carbon border regulations, reduce long-term carbon cost pressures, and strongly support compliant reporting.