HS 293339 Other
Quick Answer: HS code 293339, "Other," encompasses a diverse range of heterocyclic compounds with nitrogen hetero-atom(s) only, not elsewhere specified within heading 2933. This includes various complex organic chemicals, often intermediates for pharmaceuticals, agrochemicals, or specialty polymers. Due to its "Other" nature, classification requires careful analysis of the chemical structure and intended use. Duty rates vary significantly: the UK Trade Tariff generally applies a 0.00% ad valorem rate, while the EU TARIC typically imposes a 6.50% ad valorem duty. The US Harmonized Tariff Schedule shows a broader range, from Free to specific rates like 15.4¢/kg + 52% or 6.5% ad valorem, depending on the specific chemical. Importers and customs brokers must meticulously verify the precise chemical identity against national tariff schedules to ensure accurate classification and duty assessment, as misclassification can lead to penalties.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2933390000 | — | — | — |
| 2933392000 | 0.00 % | — | — |
| 2933391000 | 0.00 % | — | — |
| 2933392500 | 0.00 % | — | — |
| 2933394000 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2933399927 | 6.50 % | — | — |
| 2933399928 | 6.50 % | — | — |
| 2933399931 | 6.50 % | — | — |
| 2933399932 | 6.50 % | — | — |
| 2933399933 | 6.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2933390800 | Free | — | ["kg"] |
| 2933392100 | 6.5% | Free (17 programs) | ["kg"] |
| 2933391000 | Free | — | ["kg"] |
| 2933392000 | 5.8% | Free (18 programs) | ["kg"] |
| 2933392300 | 6.5% | Free (17 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 2933.39?
Imports of Other 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 17 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 Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 293339 cover?
This subheading covers heterocyclic compounds with nitrogen hetero-atom(s) only, specifically those containing an unfused pyridine ring (whether or not hydrogenated) in the structure, but which are not otherwise specified in subheadings 2933.31 through 2933.32. This includes a broad range of organic chemical compounds that possess a pyridine ring system and do not fall under the more specific provisions for pyridine and its salts (2933.31) or piperidine and its salts (2933.32). The WCO Harmonized System Explanatory Notes for Heading 2933 provide further guidance, emphasizing the presence of the nitrogen hetero-atom within the ring structure. Examples include various substituted pyridines and their derivatives not elsewhere specified, as defined by the USITC Harmonized Tariff Schedule and EU TARIC.
What falls outside HS 293339?
The following products are excluded from HS 293339: pyridine and its salts, which are specifically classified under HS 2933.31. Similarly, piperidine and its salts are excluded, falling under HS 2933.32. Furthermore, compounds containing other hetero-atoms in addition to nitrogen, or those with nitrogen hetero-atoms but not containing an unfused pyridine ring, would be classified elsewhere within Heading 2933 or other appropriate headings in Chapter 29. For instance, compounds with a quinoline ring system, which is a fused pyridine ring, would typically fall under 2933.49. Alkaloids, even if containing a pyridine ring, are generally classified in Heading 2939, unless specifically provided for elsewhere.
What are common classification mistakes for HS 293339?
A common error is misclassifying specific pyridine derivatives that have their own dedicated subheadings, such as pyridine (2933.31) or piperidine (2933.32), into the residual "Other" category of 2933.39. Importers sometimes overlook the precise chemical structure and the specific provisions within the HS, leading to incorrect application of General Interpretative Rule (GRI) 1, which states that classification is determined according to the terms of the headings and any relative section or chapter notes. Another mistake involves classifying compounds with fused pyridine rings or those containing additional hetero-atoms within 2933.39, when they should be classified in other subheadings of 2933 or even other headings of Chapter 29, based on their complete chemical structure and functional groups.
How should importers classify products under HS 293339?
The correct procedure for classifying products under HS 293339 involves a meticulous review of the chemical structure to confirm the presence of an unfused pyridine ring and the absence of other hetero-atoms. Importers and customs brokers should first consult the WCO Harmonized System Explanatory Notes for Heading 2933 to understand the scope. Next, they must systematically check if the compound is specifically named in any other subheading within 2933.31 or 2933.32. If it is not specifically named and meets the criteria of containing an unfused pyridine ring with nitrogen as the only hetero-atom, then 2933.39 is the appropriate classification. Always cross-reference with the latest USITC Harmonized Tariff Schedule or EU TARIC for specific national implementations and binding rulings, ensuring compliance with GRI 1 and GRI 6 for subheading classification.
Which HS Codes Are Related?
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FAQ
What is the Most Favored Nation (MFN) import duty rate for products classified under HS 2933.39 in key markets?
The MFN import duty rates for HS 2933.39 ('Heterocyclic compounds with nitrogen hetero-atom(s) only; N-heterocycles, other') vary significantly by importing country. For example, the United States (under HTSUS 2933.39.9000) applies a general MFN duty rate of 6.5% ad valorem. The European Union (under TARIC 2933.39.9900) generally applies a 6.5% ad valorem duty. In contrast, the United Kingdom Global Tariff (UKGT) for 2933.39.00.00 also specifies a 6.5% ad valorem duty. It is crucial for importers to verify the specific duty rate applicable to their destination country using the official tariff databases like the USITC HTS, EU TARIC, or UK Trade Tariff, as rates can be subject to change or specific subheadings.
What are the primary classification criteria for assigning a product to HS 2933.39, especially given its 'Other' designation?
HS 2933.39 is a residual subheading within Chapter 29, specifically for 'Heterocyclic compounds with nitrogen hetero-atom(s) only; N-heterocycles, other.' The primary classification criteria, as per the Harmonized System Explanatory Notes (HSENs) for heading 29.33, involve confirming that the compound is a heterocyclic compound containing only nitrogen as the hetero-atom(s) in the ring structure. The 'other' designation means that the compound does not fall into any of the more specific subheadings under 2933.11 through 2933.99 (e.g., compounds of pyridine, piperidine, pyrimidine, or other specified structures). Importers and customs brokers must ensure the chemical structure precisely matches the definition, and that it is not more specifically provided for elsewhere in Chapter 29 or other chapters. A Certificate of Analysis (CoA) or chemical structure diagram is often essential for accurate classification.
Are there any common preferential duty rates or free trade agreements that might reduce duties for HS 2933.39?
Yes, preferential duty rates are often available for products classified under HS 2933.39, depending on the country of origin and the importing country's network of Free Trade Agreements (FTAs) or preferential schemes. For instance, the United States offers 'Free' duty rates under various FTAs (e.g., USMCA, CAFTA-DR, KORUS) and preferential programs like the Generalized System of Preferences (GSP) for eligible developing countries. Similarly, the EU and UK have extensive FTA networks (e.g., with Japan, Canada, South Korea) that can grant duty-free access or reduced rates. Importers must ensure they meet the Rules of Origin (RoO) specified in the relevant agreement and provide proper documentation, such as a Certificate of Origin, to claim preferential treatment. Failure to meet RoO or provide correct documentation will result in the application of the MFN duty rate.
What documentation is typically required by customs authorities for the import of chemical products under HS 2933.39?
For chemical products under HS 2933.39, customs authorities typically require standard import documentation, including a commercial invoice, packing list, and bill of lading or air waybill. Additionally, due to the chemical nature of the goods, specific technical documentation is often crucial for classification and regulatory compliance. This may include: a Certificate of Analysis (CoA), Safety Data Sheet (SDS) outlining chemical properties and hazards, and a detailed chemical structure diagram. Depending on the specific compound and its end-use, further regulatory compliance documents related to chemical control laws (e.g., TSCA in the US, REACH in the EU/UK, K-REACH in Korea) may be necessary. Importers should consult with their customs broker and the relevant national chemical regulatory agencies to ensure all documentation is complete and accurate prior to shipment.