U.S. imports of Prepared or Preserved Clams, Cockles & Arkshells (HS 160556) totaled $4.0M in August 2026, imported from 15 countries.
Importers of Prepared or Preserved Clams, Cockles & Arkshells paid $893K in duties in August 2026, an average duty rate of 22.25% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Prepared or Preserved Clams, Cockles & Arkshells imports of $4.0M in August 2026 ran 33% above the year-to-date monthly average of $3.0M.
Last updated: August 2026 dataVietnam and China together account for the bulk of US imports of prepared and preserved clams, cockles, and arkshells, reflecting the large-scale aquaculture and processing capacity in Southeast and East Asia. The US tariff schedule is notably granular for this heading: razor clams in airtight containers (1605561000), whole or chopped boiled clams not over 680 grams gross weight (1605561500), and clams in airtight containers not elsewhere specified (1605562000) each carry their own 10-digit lines, making precise product specification essential for correct classification. Cockles and arkshells are classified separately from clams throughout the schedule. FDA prior notice and seafood HACCP compliance are mandatory for all entries; consult a licensed customs broker or FDA to confirm admissibility requirements for specific product forms.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
149 import shipments a month
The US schedule distinguishes razor clams in airtight containers, clams boiled whole or chopped and salted in packages not over 680 grams gross weight, and clams in airtight containers generally — each at a separate 10-digit line. Getting the container type, processing method, and package weight wrong can result in misclassification, so importers should confirm these specifications with their supplier before filing entry.
No. While all three fall under HS6 heading 160556, cockles and arkshells are separated from clams at the 10-digit level (1605560090 and 1605566000), and composite products containing fish meat or prepared meals have their own line (1605560500). Accurate species and product-form identification is necessary to select the correct tariff line.
Subheading 9 of 18 in heading 1605
Subheading 160556 · $4.0M of $310.9M
ImportsExports
Imports
$4.0MYoY · free account
Exports
$204KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $36.4M of Prepared or Preserved Clams, Cockles & Arkshells and exported $3.7M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 1605562000 | Clams in Airtight Containers, NESOI | $1.6M | 21.73% | 100.00% | $351K |
| 1605563000 | Clams, Prepared or Preserved, NESOI | $1.3M | 21.25% | 100.00% | $276K |
| 1605561500 | Clams Boiled Whole/Chopped/Salted Nov 680grams Gw | $377K | 32.35% | 100.00% | $122K |
| 1605561000 | Razor Clams in Airtight Containers | $301K | 21.82% | 100.00% | $66K |
| 1605566000 | Cockles & Arkshells, Prepared or Preserved, NESOI | $212K | 25.15% | 100.00% | $53K |
| 1605560500 | Clam, Cockle, Etc, Products W/ Fish Meat; Prep Meals | $209K | 12.02% | 100.00% | $25K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 1605560010 | Clams, Prepared or Preserved | $161K |
| 1605560090 | Cockles and Arkshells, Prepared or Preserved | $44K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Vietnam and China together supply 81% of it. China pays 37.5% duty; Spain 5.6%.
customs district
destination
entry
rate provision · imports
duty collected equals 22.25% of imports for consumption.
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