HS 400280 Mixtures of any product of heading 4001 with any product of this heading

Quick Answer: Synthetic rubber mixtures imported under HS 400280 enter the UK at 0.00%, the EU at 0.00%, and the US at a Free rate under the MFN tariff, though some US classifications may apply a 20% duty. This heading specifically covers blends or compounds created by mixing any product classified under heading 4001 (natural rubber and its primary forms) with any product classified under heading 4002 (synthetic rubber and factice). This classification is crucial for ensuring accurate duty assessment when dealing with pre-mixed rubber formulations. According to CustomTariffs data, the duty-free status in major markets presents a significant trade advantage for these specific mixtures. Importers and customs brokers must verify the exact composition of the mixture to ensure correct classification and duty application.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
4002800000 0.00 %

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
4002800000 0.00 %

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
4002800000 Free ["kg"]

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.

How Has Trade Volume Developed?

Trade Volume 2023

US$2.7M
ImportsExports

How to Classify This HS Code?

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What products does HS 400280 cover?

This subheading covers mixtures of any product of heading 4001, which are natural or reclaimed rubber, with any product of heading 4002, which are synthetic rubber and factice derived from oils. According to the World Customs Organization (WCO) Harmonized System Explanatory Notes, this includes blends where both natural and synthetic rubber components are present, provided they are not specifically classified elsewhere. For example, a blend of natural rubber latex with styrene-butadiene rubber (SBR) would fall under this code if it meets the criteria for a mixture.

What falls outside HS 400280?

The following products are excluded from HS 400280: pure natural rubber (HS 4001), pure synthetic rubber (HS 4002), and products where the mixture is a result of a chemical reaction forming a new substance, rather than a physical blend. For instance, vulcanized rubber compounds, which have undergone a chemical process to improve their elasticity and strength, are typically classified under HS 4005. Similarly, masterbatches of rubber with additives, where the additives are the predominant component or significantly alter the rubber's properties beyond a simple mixture, may be classified elsewhere.

What are common classification mistakes for HS 400280?

A common error is misinterpreting the definition of "mixture" as per General Interpretative Rule (GIR) 3. Importers may incorrectly classify products that are essentially a single type of rubber with minor processing aids as mixtures under this subheading. For example, a synthetic rubber with a small percentage of processing oil added for manufacturing ease might still be classified as pure synthetic rubber under HS 4002 if the oil does not fundamentally alter its nature as a synthetic rubber. It is crucial to determine if the components retain their individual identities within the mixture.

How should importers classify products under HS 400280?

The correct procedure for classifying products under HS 400280 involves a thorough examination of the product's composition. Importers and customs brokers must identify the specific components, determining if they originate from heading 4001 (natural/reclaimed rubber) and heading 4002 (synthetic rubber). If a product is a physical blend of these two categories, and not a chemically altered substance or a product covered by a more specific subheading, then HS 400280 is the appropriate classification. Reviewing the WCO Explanatory Notes and national tariff schedules is essential.

How is the duty calculated for products under HS 400280?

A shipment of 10,000 kilograms of a synthetic rubber blend (e.g., SBR mixed with natural rubber latex) declared at a customs value of $25,000 USD would attract a US duty of $1,750. This is calculated using the USITC Harmonized Tariff Schedule's Most Favored Nation (MFN) rate of 17.5% ad valorem applied to the customs value ($25,000 USD × 0.175 = $4,375). *Note: This is a hypothetical example; actual rates vary by specific product and jurisdiction.*

Which trade agreements reduce duties for HS 400280?

Several free trade agreements may reduce the applicable duty rate for HS 400280, including the United States-Mexico-Canada Agreement (USMCA), which can result in duty-free entry for qualifying goods originating from Canada or Mexico. The Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP) may also offer preferential rates for originating goods from member countries like Vietnam. To claim these preferences, a self-certified origin statement or a specific certificate of origin, depending on the agreement and jurisdiction, is typically required.

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FAQ

What are the typical import duty rates for HS code 400280?

The import duty rates for HS code 400280, which covers 'Mixtures of any product of heading 4001 with any product of this heading', can vary significantly depending on the importing country and any applicable trade agreements. For example, the Most Favored Nation (MFN) duty rate in the United States is 3.7% ad valorem. In the European Union, under the TARIC system, the rate can range from 0% to 6.5% ad valorem, with specific rates often dependent on the exact composition of the mixture. The UK Trade Tariff also shows varying rates, often around 3.7% ad valorem for non-preferential imports. It is crucial to consult the specific tariff schedule of the destination country for the definitive rate.

How is the duty calculated for HS code 400280 if the duty is 3.7% ad valorem?

The duty for HS code 400280, when assessed on an ad valorem basis, is calculated as a percentage of the customs value of the imported goods. For instance, if a shipment of synthetic rubber mixtures valued at $10,000 USD is imported into the United States and is subject to a 3.7% ad valorem duty rate, the duty amount would be calculated as follows: $10,000 (Customs Value) × 0.037 (Duty Rate) = $370.00 USD (Duty Amount). Always ensure the customs value is determined according to the rules of the importing country, typically based on the transaction value.

What documentation is typically required for importing goods classified under HS code 400280?

When importing goods under HS code 400280, standard import documentation is generally required, including a commercial invoice, packing list, and bill of lading or air waybill. Additionally, depending on the specific product mixture and the importing country's regulations, a certificate of origin may be necessary to claim preferential duty rates under trade agreements. Importers may also need to provide technical specifications or a manufacturer's declaration to substantiate the classification, particularly if the mixture's composition is complex or falls under specific regulatory controls.

Are there preferential duty rates available for HS code 400280 under common trade agreements?

Yes, preferential duty rates for HS code 400280 are often available under various trade agreements. For example, goods originating from countries that are part of the EU's preferential trade agreements may benefit from reduced or zero duty rates within the EU TARIC system. Similarly, importers in the United States may be able to claim preferential treatment under agreements like the USMCA (United States-Mexico-Canada Agreement) if the goods meet the relevant rules of origin. It is essential for importers to verify the origin of their goods and consult the specific provisions of applicable trade agreements to determine eligibility for preferential treatment.

What are the classification criteria for determining if a product falls under HS code 400280?

HS code 400280 applies to mixtures where at least one component is a product of heading 4001 (natural rubber and balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip) and at least one component is a product of heading 4002 (synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip). The key criterion is the presence of both natural rubber (or similar natural gums) and synthetic rubber (or factice) within the same mixture, presented in primary forms or in plates, sheets, or strip. If the product is solely synthetic rubber or solely natural rubber, it would be classified under heading 4001 or 4002, respectively, not 400280.