HS 292151 Aromatic polyamines and their derivatives; salts thereof
Quick Answer: HS code 292151 covers aromatic polyamines and their derivatives, along with their salts. In plain language, this includes organic chemical compounds characterized by multiple amine groups attached to aromatic rings, such as diamines and triamines, and their chemically modified forms or ionic compounds. These are often intermediates in the production of polymers, dyes, and pharmaceuticals. Duty rates vary significantly by jurisdiction and specific product within the subheading. For example, the UK Trade Tariff shows rates ranging from 0.00% to 6.00% ad valorem. The EU TARIC system generally applies a 6.50% ad valorem duty. In the US, the general Most Favored Nation (MFN) rate is 6.5% ad valorem, though specific sub-classifications can be as high as 15.4¢/kg + 48.5%. Crucially, many US Free Trade Agreement (FTA) partners (e.g., Australia, Korea, Mexico) benefit from a 0.00% duty rate. Importers and customs brokers must verify the exact 10-digit classification and country of origin to determine the applicable duty and leverage potential preferential trade agreements.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2921511100 | 0.00 % | — | — |
| 2921511910 | 6.00 % | — | — |
| 2921511940 | 6.00 % | — | — |
| 2921511990 | 6.00 % | — | — |
| 2921510000 | — | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2921511900 | 6.50 % | — | — |
| 2921511910 | 6.50 % | — | — |
| 2921511940 | 6.50 % | — | — |
| 2921511990 | 6.50 % | — | — |
| 2921510000 | — | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2921511000 | 6.5% | Free (18 programs) | ["kg"] |
| 2921513000 | 6.5% | Free (18 programs) | ["kg"] |
| 292151 | — | — | — |
| 2921512000 | 6.5% | Free (17 programs) | ["kg"] |
| 2921515000 | 6.5% | Free (18 programs) | ["kg"] |
Special rates available under trade agreements including USMCA, KORUS, GSP.
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
Which Trade Agreements Reduce Duties for HS 2921.51?
Imports of Aromatic polyamines and their derivatives; salts thereof may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.
United States (HTSUS)
Free for USMCA, KORUS, GSP, and 16 other programs
European Union (TARIC)
Preferential rate data not yet available.
United Kingdom
Preferential rate data not yet available.
Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.
Data compiled by HSRates.
Which Preferential Rates Apply to Your Origin Country?
Select an origin country to see if preferential rates apply.
Preferential rates based on available trade agreements. Actual rates may vary.
How to Classify This HS Code?
What products does HS 292151 cover?
This subheading covers aromatic polyamines and their derivatives, as well as their respective salts. Specifically, it encompasses organic chemical compounds containing two or more amine functional groups directly attached to an aromatic ring system. Examples include m-phenylenediamine (MPDA), p-phenylenediamine (PPDA), and diaminodiphenylmethane (DDM), which are crucial intermediates in the production of polymers, dyes, and other specialty chemicals. The WCO Harmonized System Explanatory Notes for Heading 2921 further clarify that "aromatic" refers to compounds containing a benzene ring or other aromatic ring systems, and "polyamines" indicates the presence of multiple amine groups. This aligns with the definitions found in the USITC Harmonized Tariff Schedule of the United States (HTSUS) and the EU TARIC system.
What falls outside HS 292151?
The following products are excluded from HS 292151: aromatic monoamines and their derivatives, which are classified under HS 2921.41 through 2921.49 depending on the specific compound. For instance, aniline (a monoamine) is classified under HS 2921.41. Additionally, cyclic polyamines that are not aromatic, such as piperazine, fall under HS 2921.30. Polymers containing aromatic polyamine units, such as polyamides or polyurethanes, are classified in Chapter 39, even if the polyamine is a significant monomer. Furthermore, mixtures of aromatic polyamines with other substances, where the polyamine is not the predominant component, may be classified elsewhere based on the nature of the mixture and its essential character, often in Chapter 38 or 39.
What are common classification mistakes for HS 292151?
A common error is misclassifying aromatic monoamines as polyamines, or vice versa, leading to incorrect duty rates and compliance issues. Importers sometimes confuse compounds like toluidines (monoamines) with phenylenediamines (polyamines) due to similar chemical structures. Another frequent mistake involves classifying polymers or preparations containing aromatic polyamines under HS 292151, when they should be classified in Chapter 39 or Chapter 38, respectively, according to General Interpretative Rule (GRI) 3(b) which addresses mixtures and composite goods. It is crucial to distinguish between pure chemical compounds and their polymeric or formulated forms to ensure accurate classification and avoid penalties for misdeclaration.
How should importers classify products under HS 292151?
The correct procedure for classifying products under HS 292151 involves a thorough review of the chemical structure and functional groups present. Importers and customs brokers should first verify that the compound is indeed an amine and contains an aromatic ring system. Next, confirm the presence of two or more amine groups to distinguish it from monoamines. Consulting the Chemical Abstracts Service (CAS) number and the full chemical name is highly recommended. Cross-referencing with the WCO Harmonized System Explanatory Notes, the USITC HTSUS, or the EU TARIC system for specific product examples and legal notes is essential. If uncertainty persists, obtaining a binding ruling from the relevant customs authority (e.g., CBP in the US) is the most prudent course of action to ensure compliance and mitigate risk.
Which HS Codes Are Related?
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FAQ
What are the Most Favored Nation (MFN) duty rates for HS code 2921.51 in key markets?
The MFN (Most Favored Nation) duty rates for products classified under HS 2921.51 ('Aromatic polyamines and their derivatives; salts thereof') vary by importing country. For example, the United States generally applies a duty rate of 6.5% ad valorem. The European Union's TARIC database indicates a common MFN duty rate of 6.5% ad valorem. The UK Global Tariff also lists a 6.5% ad valorem rate. It is crucial for importers to verify the current MFN rate directly with the customs authority of the importing country (e.g., USITC Tariff Database, EU TARIC, UK Trade Tariff) as rates can be subject to change.
What are the key classification criteria for products under HS 2921.51?
HS 2921.51 specifically covers 'Aromatic polyamines and their derivatives; salts thereof'. The primary classification criteria revolve around the chemical structure: the presence of multiple amine (-NH2) functional groups, at least one of which is directly attached to an aromatic ring system. Derivatives include substances where the hydrogen atoms of the amine groups have been substituted, provided the fundamental aromatic polyamine structure remains identifiable. Salts of these compounds are also included. Importers should ensure their product's chemical name, CAS number, and structural formula clearly demonstrate these characteristics. For complex mixtures or derivatives, a chemical analysis report may be necessary to support classification.
Which preferential trade agreements offer duty reductions or exemptions for HS 2921.51, and what documentation is required?
Many preferential trade agreements offer reduced or zero duty rates for HS 2921.51, provided the goods meet the specific Rules of Origin (ROO) of the agreement. For the United States, examples of agreements providing 'Free' duty rates (0.00% ad valorem) include those with Australia (AU), Bahrain (BH), Chile (CL), Colombia (CO), Israel (IL), Jordan (JO), Korea (KR), Panama (PA), Peru (PE), and Singapore (SG). Similar preferential rates exist under agreements like the EU's Generalized Scheme of Preferences (GSP) or various Free Trade Agreements (FTAs). To claim preferential duty rates, importers must typically provide a valid Certificate of Origin (e.g., Form A for GSP, specific FTA certificates) or an origin declaration, demonstrating that the product originates in a qualifying country as per the agreement's ROO. Customs brokers should verify the specific origin criteria and documentation requirements for each applicable agreement.
Are there any specific documentation requirements or regulatory considerations for importing aromatic polyamines under HS 2921.51?
Beyond standard customs entry documentation (commercial invoice, packing list, bill of lading/airway bill), specific regulatory considerations for importing aromatic polyamines under HS 2921.51 may apply depending on the country and the specific chemical. Importers should be aware of potential requirements under chemical control laws such as the Toxic Substances Control Act (TSCA) in the United States, REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) in the European Union, or similar regulations in other jurisdictions. This may involve pre-market notification, registration numbers, or safety data sheets (SDS). While not directly a customs tariff requirement, compliance with these regulations is essential for lawful importation and may be checked by partner government agencies at the border. Customs brokers should advise importers to confirm all relevant chemical regulations prior to shipment.