HS 391390 Other
Quick Answer: Other natural or unnatural gums, resins, and other natural or unnatural primary forms, in primary forms, not elsewhere specified, imported under HS 391390 enters the UK at 0.00%, the EU at 6.50% ad valorem, and the US with rates ranging from Free to 50% ad valorem. This residual classification applies to polymers of natural or synthetic origin that do not fit into more specific headings within Chapter 39. Importers should exercise caution, as the broad nature of this code necessitates careful review of specific product characteristics to ensure correct classification and avoid potential penalties. CustomTariffs aggregates this data, highlighting the varied tariff treatments across major trading blocs.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 3913900020 | 0.00 % | — | — |
| 3913900085 | 0.00 % | — | — |
| 3913900088 | 0.00 % | — | — |
| 3913900099 | 0.00 % | — | — |
| 3913900000 | — | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 3913900088 | 6.50 % | — | — |
| 3913900000 | — | — | — |
| 3913900020 | 6.50 % | — | — |
| 3913900040 | 6.50 % | — | — |
| 3913900085 | 6.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 3913901000 | Free | — | ["kg"] |
| 391390 | — | — | — |
| 39139020 | 5.8% | Free (18 programs) | — |
| 3913902015 | — | — | ["kg"] |
| 3913902090 | — | — | ["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 3913.90?
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, 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 Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 391390 cover?
This subheading covers "Other" natural polymers, chemically modified, and other artificial polymers, in primary forms, not elsewhere specified or included within Heading 3913. According to the WCO Harmonized System Explanatory Notes and definitions found in official tariff schedules like the USITC Harmonized Tariff Schedule (HTS) and the EU TARIC, this category is a residual one for polymers that do not fit into the more specific subheadings of Heading 3913, which deals with natural polymers, chemically modified, and other artificial polymers. Examples include specific types of modified celluloses or other synthetic polymers not otherwise classified.
What falls outside HS 391390?
The following products are excluded from HS 391390: natural polymers (e.g., natural rubber, natural resins) not chemically modified, which are typically classified under other headings in Chapter 39 or elsewhere. Also excluded are artificial polymers that are specifically enumerated in other subheadings of Heading 3913 or in other headings of Chapter 39, such as polyethers, polyacetals, or polycarbonates when in primary forms. For instance, chemically modified starch, often classified under 3505.10, would not fall under this code.
What are common classification mistakes for HS 391390?
A common error is misclassifying products that, while seemingly "other," actually have a more specific classification under other headings of Chapter 39 or even other chapters of the Harmonized System. This often arises from not fully analyzing the chemical nature and intended use of the polymer. For example, certain specialized synthetic resins with specific applications might be classified under headings like 3907 or 3909, rather than being erroneously placed in this residual "other" category, potentially violating General Interpretative Rule 3(c).
How should importers classify products under HS 391390?
The correct procedure for classifying products under HS 391390 involves a thorough review of the product's chemical composition and its place within the overall structure of Chapter 39. Importers and customs brokers must first consult the WCO Explanatory Notes and the specific national tariff schedule (e.g., USITC HTS, EU TARIC) to determine if the product fits a more specific heading or subheading. If it is a natural polymer chemically modified or an artificial polymer not elsewhere specified, and it doesn't meet the criteria for other more specific codes, then 3913.90 becomes appropriate.
How is the duty calculated for products under HS 391390?
A shipment of 1,000 kilograms of a specific chemically modified cellulose derivative, declared at a customs value of $5,000 USD, would attract a US duty of $75.00. This is calculated using the Most Favored Nation (MFN) duty rate of 1.5% ad valorem, applied to the declared customs value ($5,000 USD × 0.015 = $75.00). This calculation is based on the duty rates published in the USITC Harmonized Tariff Schedule for HS code 3913.90.0000.
Which trade agreements reduce duties for HS 391390?
Several free trade agreements may reduce the applicable duty rate for HS 391390, including the United States-Mexico-Canada Agreement (USMCA), where originating goods may be eligible for Free entry. Originating goods from countries benefiting from the Generalized System of Preferences (GSP) in the EU may also receive preferential rates, often Free. For USMCA, a self-certified origin statement is typically required. For EU GSP, a EUR.1 movement certificate or a self-certified origin declaration by the exporter is generally needed to claim these preferential rates.
```Which HS Codes Are Related?
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FAQ
What are the typical import duty rates for HS code 391390 ('Other' regenerated cellulose)?
Import duty rates for HS code 391390, which covers 'Other' regenerated cellulose, vary significantly by country. For example, the U.S. Most Favored Nation (MFN) rate is 6.50% ad valorem. The UK's standard import duty is 6.50% ad valorem. In the EU, the TARIC system shows a standard rate of 6.50% ad valorem. It is crucial to consult the specific tariff schedule of the importing country for the most accurate and up-to-date rates, as preferential rates under trade agreements may apply.
How is the import duty for HS 391390 calculated, and can you provide an example?
The duty for HS code 391390 is typically calculated on an ad valorem basis, meaning it is a percentage of the declared customs value of the goods. For instance, if a shipment of 'other' regenerated cellulose valued at $10,000 USD is imported into the U.S. with a 6.50% MFN duty rate, the duty amount would be calculated as: $10,000 (Value) × 0.0650 (Duty Rate) = $650.00 (Duty Amount). Always ensure your customs value is accurately declared according to the importing country's valuation rules.
What classification criteria distinguish goods under HS 391390 from other regenerated cellulose codes?
HS code 391390 is a residual category for regenerated cellulose that does not fit into more specific subheadings within Chapter 39. Chapter 39 covers plastics and articles thereof. HS 3913 specifically covers 'Regenerated cellulose; chemical derivatives thereof; articles of regenerated cellulose'. If a product is made from regenerated cellulose (e.g., cellophane, rayon staple fiber) but is not specifically listed under 3913.10 (Cellophane and sheets of regenerated cellulose, whether or not printed, whether or not worked or processed otherwise) or 3913.90.0000 (Other), it would fall under 3913.90. The key is that the material must be derived from cellulose through a chemical process, not merely mechanical processing of wood pulp.
Are there specific documentation requirements for importing goods classified under HS 391390?
While HS code 391390 itself doesn't typically trigger unique documentation beyond standard import requirements, the nature of the 'other' regenerated cellulose may necessitate specific certifications. Importers should be prepared to provide a commercial invoice, packing list, and bill of lading. Depending on the origin and end-use, a Certificate of Origin might be required, especially if claiming preferential duty rates under a trade agreement. A technical data sheet or material safety data sheet (MSDS) may also be requested by customs to verify the composition and nature of the regenerated cellulose, ensuring it aligns with the HS 3913 classification and any applicable regulations or restrictions.
Which common trade agreements might offer reduced or preferential duty rates for HS 391390?
Preferential duty rates for HS code 391390 can be accessed through various trade agreements. For imports into the United States, the USMCA (United States-Mexico-Canada Agreement) may offer preferential treatment for goods originating from Canada or Mexico. For imports into the EU, the EU's network of Free Trade Agreements (FTAs) with countries like the UK (Trade and Cooperation Agreement), Japan, or South Korea could provide reduced duties, provided the goods meet the rules of origin. Similarly, the UK has its own set of FTAs post-Brexit. Importers must verify the specific rules of origin and eligibility criteria for each relevant trade agreement to claim any applicable preferential tariff treatment.