Standard International Trade Classification
U.S. imports of Prepared or Preserved Molluscs & Other Aquatic Invertebrates, N.E.S. (SITC 03722) totaled $26.1M in August 2026, imported from 37 countries.
Importers of Prepared or Preserved Molluscs & Other Aquatic Invertebrates, N.E.S. paid $4.2M in duties in August 2026, an average duty rate of 15.98% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataCanned clams, smoked oysters, prepared squid, octopus, sea urchin, and similar products fall within this residual heading, reflecting the broad commercial diversity of mollusc and aquatic invertebrate preparations traded globally. Certain species — notably queen conch and some giant clam species — are CITES-listed, requiring export permits and Fish and Wildlife Service documentation at US entry. FDA prior notice, seafood HACCP compliance, and paralytic shellfish poison (PSP) and other biotoxin controls are critical safety considerations, particularly for bivalve molluscs. Importers should verify that bivalve products originate from harvest areas approved under the National Shellfish Sanitation Program (NSSP) or an equivalent recognized foreign program.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
779 import shipments a month
The NSSP is an FDA-administered cooperative program that establishes sanitation standards for shellfish harvest, processing, and distribution. Imported bivalve molluscs (oysters, clams, mussels, scallops) must originate from countries with NSSP-equivalent programs recognized by FDA. Shipments from non-recognized countries or unapproved harvest areas are subject to refusal at the port of entry.
Yes. Queen conch (Strombus gigas) and several giant clam species (Tridacna spp.) are listed under CITES and require valid export permits from the country of origin plus US Fish and Wildlife Service documentation. Importers dealing in these species should secure CITES paperwork well in advance of shipment.
Basic heading 105 of 337 in section 0
Basic heading 03722 · $26.1M of $14.7B
Trade Directory
List your company and tag the 6-digit products you trade, so the companies trading them can find you. Be the first supplier listed.
Imports · August 2026
origin
China pays 37.5% duty; Spain 8.1%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
ImportsExports
Imports
$26.1MYoY · free account
Exports
$517KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $292.4M of Prepared or Preserved Molluscs & Other Aquatic Invertebrates, N.E.S. and exported $9.5M.
Through August 2026. Source: U.S. Census Bureau.