HS 390729 Other

Quick Answer: Polyethers, including polyether polyols, imported under HS 390729 enter the US at 6.5% ad valorem or specific rates based on trade agreements, the EU at 6.5% ad valorem, and the UK with rates varying from 0.00% to 6.00% ad valorem. This residual classification applies to polyethers not specifically listed elsewhere in Chapter 39, often used as intermediates in the production of polyurethanes and other polymers. Importers and customs brokers should consult specific tariff schedules for precise duty application, as rates can differ significantly based on origin and end-use. CustomTariffs aggregates this data for compliance.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
3907290000
3907291110 0.00 %
3907292040 6.00 %
3907291100 0.00 %
3907291120 0.00 %

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
3907290000
3907291110 6.50 %
3907291130 6.50 %
3907291140 6.50 %
3907291190 6.50 %

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
3907290000 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 3907.29?

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 15 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

US$522.6M
ImportsExports

How to Classify This HS Code?

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What products does HS 390729 cover?

This subheading covers other polyethers, in primary forms, not elsewhere specified or included within heading 3907. According to the World Customs Organization (WCO) Harmonized System Nomenclature, this includes various polyether compounds that do not fit into the more specific categories of polyacetals, other polyethers, and epoxide resins, liquid or still. For example, the US International Trade Commission (USITC) Harmonized Tariff Schedule (HTS) and the EU's TARIC database provide further detail, often including specific chemical names or CAS numbers for clarity, ensuring a broad but defined scope for these 'other' polyethers.

What falls outside HS 390729?

The following products are excluded from HS 390729: polyacetals and other polyethers, epoxide resins, and polycarbonates, polyesters, alkyd resins, and phenolic resins. For instance, polyethylene glycol (PEG) with a molecular weight below 400, which is often classified under 3907.20, would not fall here. Similarly, specific epoxy resins used in coatings or adhesives, typically classified under 3907.30, are excluded, as are polycarbonates and polyesters which have their own distinct HS codes within Chapter 39.

What are common classification mistakes for HS 390729?

A common error is misinterpreting the "other" designation, leading to the incorrect classification of specific polyethers that should fall under more precise subheadings within 3907 or even other chapters. For instance, classifying a polyurethane precursor that is primarily a polyether polyol under 3907.29 when it should be classified based on its polyurethane-forming characteristics. Adherence to the General Rules for the Interpretation of the Harmonized System (GRI), particularly GRI 1 and GRI 3, is crucial to ensure accurate classification based on the most specific heading and note definitions.

How should importers classify products under HS 390729?

The correct procedure for classifying products under HS 390729 involves a thorough review of the product's chemical composition and physical form. Importers and customs brokers must consult the official tariff schedule of the importing country, such as the USITC HTS or the UK Trade Tariff, and cross-reference with WCO Explanatory Notes. If the product is a polyether not specifically listed in more precise subheadings of 3907, and it is in its primary form (e.g., powder, granules, liquid), then 3907.29 is likely applicable.

How is the duty calculated for products under HS 390729?

A shipment of 1,000 kilograms of a specific non-ionic polyether surfactant, declared at a customs value of $5,000 USD, would attract a US duty of $150.00. This is calculated using the Most Favored Nation (MFN) duty rate of 3.0% ad valorem, applied to the declared customs value ($5,000 USD × 0.03 = $150.00). This calculation is based on the duty rates published in the USITC Harmonized Tariff Schedule, which provides specific rates for various classifications.

Which trade agreements reduce duties for HS 390729?

Several free trade agreements may reduce the applicable duty rate for HS 390729, including the United States-Mexico-Canada Agreement (USMCA), which can provide duty-free entry for qualifying goods originating from Canada or Mexico. The Generalized System of Preferences (GSP) may also offer reduced or duty-free rates for eligible products from developing countries. To claim these preferences, importers typically need to provide a self-certified origin statement for USMCA or a GSP Form A for GSP beneficiaries, depending on the specific agreement and jurisdiction.

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Which HS Codes Are Related?

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FAQ

What are the typical import duty rates for HS code 3907.29?

HS code 3907.29, covering 'Other polyethers, in primary forms,' has varied duty rates depending on the importing country and trade agreements. For instance, the U.S. Most Favored Nation (MFN) rate is 3.7% ad valorem. The European Union's TARIC system may show rates such as 6.5% ad valorem for certain origins. The UK Trade Tariff also lists rates, often around 6.5% ad valorem for non-preferential origins. It is crucial to consult the specific tariff schedule of the destination country for the definitive rate applicable to your shipment.

How is the import duty calculated for HS code 3907.29, using a specific example?

The duty calculation for HS code 3907.29 typically involves an ad valorem rate, meaning a percentage of the declared value of the goods. For example, if a shipment of 'other' polyethers valued at $10,000 USD is imported into the United States, and the MFN duty rate is 3.7%, the calculated duty would be $10,000 USD × 0.037 = $370 USD. Some countries may also apply specific duties (e.g., per kilogram) or a combination of ad valorem and specific duties, requiring careful attention to the tariff's structure.

Which trade agreements offer preferential duty rates for HS code 3907.29?

Several trade agreements can provide preferential duty rates for goods classified under HS code 3907.29. For example, under the USMCA (United States-Mexico-Canada Agreement), qualifying goods may enter duty-free. The EU has numerous Free Trade Agreements (FTAs) with countries that could reduce or eliminate duties. Similarly, the UK has its own set of FTAs post-Brexit. Importers must verify the origin of their goods and ensure they meet the specific rules of origin stipulated in the relevant trade agreement to claim preferential treatment. Documentation such as a Certificate of Origin is often required.

What are the classification criteria for 'Other' polyethers under HS code 3907.29?

HS code 3907.29 is a residual category for polyethers that do not fall under more specific subheadings within Chapter 39 of the Harmonized System. This includes polyethers in primary forms (e.g., powders, granules, flakes, blocks, or bulk liquids) that are not specifically listed elsewhere. Classification hinges on the chemical nature of the substance as a polyether and its presentation in a primary form. If a polyether has characteristics or applications that are specifically covered by another heading (e.g., certain polyurethanes or epoxy resins), it would be classified there. Consulting the Explanatory Notes to the Harmonized System and national tariff rulings is recommended for complex cases.

What documentation is typically required for importing goods under HS code 3907.29?

Standard import documentation for HS code 3907.29 includes a commercial invoice detailing the value, quantity, and description of the goods; a packing list; and a bill of lading or air waybill. Depending on the country of import and any claimed preferential treatment, a Certificate of Origin may be mandatory. Safety Data Sheets (SDS) or technical data sheets might also be requested by customs authorities to verify the chemical composition and ensure compliance with any chemical import regulations. It is advisable to check the specific import requirements of the destination country's customs authority.