Anti-dumping tariff on Chinese adipic acid 2026: what changes for importers

Key data

European importers of adipic acid from China and manufacturers using it as raw material have an immediate obligation: review and apply the corrected tariff rates published on May 8, 2026. The European Commission has published a correction to its Implementing Regulation (EU) 2026/913, which imposes definitive anti-dumping tariffs on this chemical compound of Chinese origin.

The correction adjusts technical aspects or material errors in the original text published just three days earlier, on May 5, 2026. Although it may seem like a minor procedure, any company that has applied the rates from the original regulation must verify whether the correction affects its customs settlements already made.

What does this regulation establish?

The Implementing Regulation (EU) 2026/913 established definitive anti-dumping tariffs on imports of adipic acid originating from the People's Republic of China, and ordered the definitive collection of the provisional tariff that was already in application. The correction published on May 8, 2026 modifies technical aspects or material errors in that original text.

Adipic acid is an industrial chemical compound used as raw material in the manufacture of:

• Nylon (polyamide 6,6)
• Polyurethanes
• Plasticizers
• Other industrial products in the chemical and technical materials sector

The EU's anti-dumping procedures are activated when it is detected that an imported product is sold below its production cost or the price in the market of origin, harming European industry. In this case, the European Commission determined that Chinese imports of adipic acid met those conditions and established a definitive tariff, which has now been subject to technical correction.

The correction does not introduce a new tariff policy: it adjusts the text already in force. However, the corrected tariff rates are those that have legal validity and those that must be applied in customs operations.

Economic and operational impact

The impact of this regulation occurs on two different levels:

For direct importers of adipic acid from China: The definitive anti-dumping tariff is added to the ordinary customs tariff applicable to the product. This increases the effective purchase price of Chinese adipic acid compared to suppliers from other origins not subject to anti-dumping measures. The correction published on May 8 requires verification that the types applied in customs are those of the corrected text, not those of the original from May 5.

For manufacturers using adipic acid as raw material: If their supply chain depends on Chinese suppliers, the increase in input costs is passed directly to their production costs. The most exposed sectors are the manufacture of nylon, polyurethanes and plasticizers. These manufacturers will need to evaluate whether to renegotiate prices with their suppliers, seek alternative sources or absorb the cost increase.

The fact that a correction was published so quickly after the original regulation (only three days later) indicates that there may be discrepancies between the text initially applied and the correct text. This is especially relevant if customs settlements have already been made or invoices have been issued based on the original rates.

Who does it affect?

• European importers of adipic acid of Chinese origin: Must apply the corrected tariff rates in their import declarations.
• Nylon manufacturers (polyamide 6,6): Adipic acid is one of their main inputs. If they buy from Chinese suppliers, their raw material cost is affected.
• Polyurethane manufacturers: Sector exposed to the increase in adipic acid imported from China.
• Plasticizer manufacturers: Same exposure as the above if they depend on Chinese origin.
• Operators in the chemical and technical textile sector: Any company using adipic acid as an input in its production processes.
• Customs agents and logistics operators: Must update the rates applied in their clients' customs declarations.
• Tax and foreign trade advisors: Must inform their clients about the correction and its implications for settlements already made.

Practical example

Suppose a Spanish nylon component manufacturer that imports adipic acid from China. Between May 5 and May 8, 2026, this company makes an import and applies the tariff rates from the original regulation (EU) 2026/913 published on May 5.

On May 8, the correction is published. If the corrected rates differ from the original ones, the company must verify whether the customs settlement already made is correct or whether it must be rectified. Depending on the difference between the original and corrected rate, there could be an additional customs debt or, conversely, an overpayment subject to refund.

Additionally, if this company has supply contracts with its customers with prices set before the definitive tariff came into force, it will need to evaluate whether it can pass on the additional cost or absorb it in its margin. This is the most common scenario for manufacturers of nylon, polyurethanes or plasticizers that have not anticipated the impact of the anti-dumping tariff on their cost structure.

What should companies do now?

1. Review the corrected text in EUR-Lex: Access the correction of Implementing Regulation (EU) 2026/913 published on May 8, 2026 and compare the tariff rates with those of the original text from May 5. Identify what technical aspects have been modified.
2. Verify customs settlements already made: If you made imports of Chinese adipic acid between May 5 and May 8 applying the original rates, check whether the correction affects those operations. Contact your customs agent.
3. Update internal import procedures: Ensure that your purchasing, logistics and administration department applies the corrected rates in all future customs operations.
4. Evaluate the impact on procurement costs: If you depend on Chinese adipic acid as raw material, quantify the additional cost that the definitive anti-dumping tariff represents and analyze alternative sources (European suppliers or other countries not subject to anti-dumping measures).
5. Review supply contracts and sales prices: Verify whether your contracts with customers or suppliers include adjustment clauses for tariff variations. If not, evaluate the need to renegotiate or include these clauses in future contracts.
6. Consult with a foreign trade specialist: If the volume of Chinese adipic acid imports is significant for your company, it is advisable to have a specialist advisor.