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

Key data

European importers of Chinese-origin adipic acid face a new mandatory cost structure from 4 May 2026. The Commission Implementing Regulation (EU) 2026/913 establishes definitive anti-dumping duties on this product, with immediate effect and retroactive consolidation of the provisional duties that were already being applied.

Adipic acid is an essential raw material in the manufacture of nylon, polyurethanes and plasticizers. Any company that imports it from China—or uses it in its production chain—must review its supply contracts and margins right now.

What does this regulation establish?

Regulation 2026/913 introduces two simultaneous effects on the trade of Chinese adipic acid in the EU:

• Definitive anti-dumping duty: A permanent tariff is established on imports of adipic acid originating from China. This duty seeks to correct the competitive distortion generated by artificially low prices from Chinese exporters, which harmed European producers of the same product.
• Retroactive consolidation of provisional duties: The provisional duties that had already been collected before the definitive tariff came into force are definitively retained. There is no refund possible for importers who already paid them.

The affected product is adipic acid, a chemical compound with wide industrial use, key in the synthesis of nylon (polyamide 6,6), polyurethanes and plasticizers. Its declared origin as the People's Republic of China is the determining criterion for the application of the tariff.

This measure is part of the European regulation on EU trade defense against dumping practices, that is, the export of products at prices below their actual production cost to gain market share unfairly.

Economic and operational impact

The impact occurs at two differentiated levels:

For direct importers: The cost of each import operation of Chinese adipic acid increases by the amount of the definitive anti-dumping tariff. This additional cost must be absorbed, passed on to the customer or compensated by changing suppliers. Additionally, importers who already paid provisional duties will not recover those amounts.

For user industries: Companies that use adipic acid as a raw material in the manufacture of nylon, polyurethanes and plasticizers will see their procurement costs increase if their suppliers are Chinese. This directly affects production margins in sectors such as automotive (nylon parts, polyurethane foams), textiles (synthetic fibers) and the chemical industry in general.

The measure also has a positive indirect effect for European adipic acid producers, who regain competitiveness against Chinese imports at artificially low prices.

Who does it affect?

• European importers of adipic acid that have suppliers in China: must pay the definitive anti-dumping tariff in each import operation.
• Chemical industry: manufacturers of plasticizers, resins and other derivatives that use adipic acid as an input.
• Textile industry: producers of synthetic nylon fibers (polyamide 6,6) that depend on adipic acid of Chinese origin.
• Automotive industry: manufacturers of nylon components and polyurethane foams for vehicles.
• Traders and distributors that act as intermediaries in the supply chain of this product from China to European buyers.
• European adipic acid producers: benefit indirectly by regaining competitiveness against Chinese imports.

Practical example

A Spanish company manufacturing nylon components for the automotive industry regularly imports adipic acid from China as its main raw material.

Until the entry into force of Regulation 2026/913, its import operations were subject only to provisional duties. From 4 May 2026, each batch imported from China carries the associated definitive anti-dumping tariff, which is added to the ordinary customs duties already in place.

If this company had supply contracts signed with Chinese suppliers before the measure came into force, without price revision clauses for tariff changes, it will have to absorb that additional cost until the contract is renewed. Depending on the annual purchase volume, the impact can be significant on its bottom line.

The immediate alternative is to explore suppliers of adipic acid in other countries not subject to the anti-dumping measure (such as European producers or third countries without declared dumping), although this involves a homologation process and possibly higher market prices than artificially low Chinese ones.

What should companies do now?

1. Identify if you import adipic acid from China: Review your active customs declarations and supply contracts. If the origin is China, the definitive anti-dumping tariff already applies from 4 May 2026.
2. Quantify the cost impact: Calculate the additional tariff cost on your annual volume of Chinese adipic acid imports. Update your procurement cost models and review the margins of the final products that incorporate it (nylon, polyurethanes, plasticizers).
3. Review supply contracts: Check if your contracts with Chinese suppliers include price revision clauses for tariff changes. If they do not, evaluate renegotiation or the search for alternative suppliers.
4. Explore alternative suppliers: Analyze the feasibility of replacing Chinese procurement with European producers or other origins not affected by the anti-dumping measure, considering prices, homologation timelines and supply security.
5. Verify the status of provisional duties already paid: If your company paid provisional duties before 4 May 2026, note that Regulation 2026/913 consolidates them retroactively. There is no refund: those amounts are definitively retained.
6. Transfer the analysis to the value chain: If you are a user manufacturer (textiles, automotive, chemicals), communicate the impact to your finance department and evaluate if the