HS 160551 Molluscs

Quick Answer: Molluscs imported under HS 160551 enter the UK at 20.00% and the EU at 20.00%, while the US applies a range of rates including Free, 20%, and 4.7%. This Harmonized System (HS) code specifically covers molluscs, whether in shell or shelled, fresh, chilled, frozen, dried, salted, or in brine. This classification excludes molluscs prepared or preserved in airtight containers, which fall under different HS codes. Importers and customs brokers should consult specific tariff schedules for precise duty rates applicable to their particular mollusc product and destination market. According to CustomTariffs data, understanding these variations is crucial for accurate customs declarations and duty calculations.

What Are the Import Duty Rates?

🇬🇧 United Kingdom

Code MFN Preferential Unit
1605510000 20.00 %

🇪🇺 European Union (TARIC)

Code MFN Preferential Unit
1605510000 20.00 %

🇺🇸 United States (HTSUS)

Code MFN Preferential Unit
1605510500 Free ["kg"]
1605515000 4.7% Free (17 programs) ["kg"]
160551
1605514000 Free ["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 1605.51?

Imports of Molluscs 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 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?

How to Classify This HS Code?

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What products does HS 160551 cover?

This subheading covers edible molluscs, whether in shell or not, fresh, chilled, frozen, dried, salted or in brine, prepared or preserved. According to the World Customs Organization's Harmonized System Nomenclature, this includes species such as clams, mussels, oysters, scallops, and abalone. The US International Trade Commission (USITC) Harmonized Tariff Schedule (HTS) and the EU's TARIC database confirm that this classification applies to the flesh of these molluscs, excluding those prepared or preserved in a manner that changes their essential character beyond simple preservation.

What falls outside HS 160551?

The following products are excluded from HS 160551: molluscs that are live (which are typically classified under Chapter 03), those prepared or preserved in ways not covered by the heading (e.g., in sauces or as part of composite dishes classified elsewhere), and products derived from crustaceans (which fall under HS 1605.10 to 1605.40). For instance, canned oysters in a tomato sauce would likely be classified under a different heading for prepared meals, and live mussels for aquaculture would not fall under this heading.

What are common classification mistakes for HS 160551?

A common error is misclassifying molluscs that have undergone significant processing. For example, if molluscs are incorporated into a ready-to-eat meal or a complex sauce, they may not be classified under HS 160551 but rather under a heading for prepared foods or composite goods, as per General Interpretative Rule 3. Another mistake is confusing molluscs with crustaceans, which are distinct categories within Heading 1605 and have different subheadings and duty rates.

How should importers classify products under HS 160551?

The correct procedure for classifying products under HS 160551 involves first identifying the specific type of mollusc and its condition (e.g., fresh, frozen, dried). Importers and customs brokers must consult the official tariff schedule of the importing country, such as the USITC HTS or the EU TARIC, to confirm the precise subheading. Verifying the product's preparation method is crucial to ensure it meets the criteria for this heading and is not classifiable elsewhere.

How is the duty calculated for products under HS 160551?

A shipment of 1,000 kg of frozen mussels, declared at a customs value of $5,000 USD, would attract a US duty of $1,000.00. This is calculated using the Most Favored Nation (MFN) duty rate of 20% ad valorem, applied to the declared customs value ($5,000 USD × 0.20 = $1,000.00). This calculation is based on the MFN rate published in the USITC Harmonized Tariff Schedule for HS code 160551.

Which trade agreements reduce duties for HS 160551?

Several free trade agreements may reduce the applicable duty rate for HS 160551, including the United States-Mexico-Canada Agreement (USMCA), which can provide for Free duty rates for qualifying goods originating from Canada and Mexico. Additionally, the Generalized System of Preferences (GSP) may offer reduced or Free duty rates for eligible products from certain developing countries. To claim these preferences, importers typically require a self-certified origin statement for USMCA or a GSP Form A for GSP-eligible countries.

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Which HS Codes Are Related?

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FAQ

What are the import duty rates for HS code 1605.51 (Molluscs)?

The Most Favored Nation (MFN) duty rate for HS code 1605.51, covering 'Other molluscs', can vary by importing country. For example, the U.S. tariff rate is 0% ad valorem (Free). In the European Union, under the TARIC system, the rate can be 12% ad valorem for third countries, with potential reductions under preferential agreements. The UK Trade Tariff also lists various rates, often around 0% to 20% ad valorem depending on the specific product and origin. Importers should always verify the applicable rate for their specific destination country and the origin of the goods.

How is the duty for HS 1605.51 calculated? Provide an example.

Duty calculation for HS 1605.51 typically involves an ad valorem rate (a percentage of the value of the goods) or a specific rate (a fixed amount per unit of weight or quantity), or a combination. For instance, if importing 'Other molluscs' into a country with a 5% ad valorem duty rate and the CIF (Cost, Insurance, and Freight) value of the shipment is $10,000, the duty would be calculated as: $10,000 (CIF Value) × 5% (Duty Rate) = $500. If there were also a specific duty, such as $0.50 per kilogram, and the shipment weighed 1,000 kg, an additional $500 (1,000 kg × $0.50/kg) would be applied, for a total duty of $1,000.

What specific criteria define 'Other molluscs' under HS code 1605.51?

HS code 1605.51 falls under Chapter 16, which covers 'Preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates'. Specifically, heading 16.05 covers 'Crustaceans, molluscs and other aquatic invertebrates, prepared or preserved'. Subheading 1605.51 is for 'Other molluscs', which includes molluscs not elsewhere specified in headings 1605.10 through 1605.50. This typically encompasses a wide range of edible molluscs such as clams, mussels, oysters, scallops, squid, and octopus, whether fresh, chilled, frozen, dried, salted, or in brine, and prepared or preserved in any way (e.g., canned, cooked, or in sauces), provided they are not classified under more specific subheadings within 1605.

What documentation is typically required for importing goods classified under HS 1605.51?

Standard documentation for importing molluscs under HS 1605.51 generally includes a commercial invoice detailing the value and description of the goods, a packing list specifying the contents of each package, and a bill of lading or air waybill for transport. Depending on the country of import and the nature of the product (e.g., fresh, frozen, processed), additional documents may be required. These can include a certificate of origin to claim preferential duty rates, import permits, health certificates or phytosanitary certificates issued by the competent authority of the exporting country to ensure food safety and compliance with sanitary and phytosanitary (SPS) measures, and potentially inspection certificates.

Which trade agreements commonly offer preferential duty rates for HS 1605.51?

Preferential duty rates for HS 1605.51 can be accessed through various free trade agreements (FTAs) and preferential trade schemes. For example, imports into the European Union from countries with an Economic Partnership Agreement (EPA) or Association Agreement may benefit from reduced or zero duties. Similarly, the United States has FTAs with countries like Canada and Mexico (USMCA), Australia, and others, which could impact duties on molluscs if they meet the rules of origin. The UK also has numerous trade agreements post-Brexit. Importers must consult the specific trade agreement between the exporting and importing countries and ensure their goods meet the relevant 'rules of origin' to qualify for preferential treatment.