Product classification

HS code for Chilled oysters: 0307.11

Molluscs, oysters, whether in shell or not, live, fresh or chilled.

Classification of chilled oysters under HS 0307.11

Chilled oysters are classified under HS code 0307.11. This classification is determined by the product's biological nature as a mollusc and its state of preservation. Chapter 3 of the Harmonized System encompasses all aquatic invertebrates, and heading 0307 specifically addresses molluscs. The subheading 0307.11 is designated for oysters that are live, fresh, or chilled. In international trade, "chilled" refers to products that have been cooled to a temperature generally between 0°C and 4°C to maintain freshness without ice crystals forming in the tissue. This code applies to oysters regardless of whether they are presented in their shells or have been shucked (removed from the shell). The classification is strictly for raw products; any heat treatment or advanced preservation method would necessitate a different code. The consistency of this classification ensures that customs authorities can apply appropriate sanitary and phytosanitary (SPS) measures, which are particularly stringent for live and fresh bivalve molluscs.

Covers
  • Live oysters in the shell (various species)
  • Shucked fresh oyster meat on ice
  • Chilled oysters in half-shells for immediate consumption
  • Fresh oysters packed in containers with chilled seawater
  • Raw oysters maintained at refrigerated temperatures
Also under 0307.11
  • Kumamoto Oysters (live)
  • Pacific Oysters (live)
  • Belon Oysters (live)
  • Bluepoint Oysters (live)
  • Sydney Rock Oysters (live)

Codes often confused with 0307.11

Common mistake. A frequent misclassification occurs with HS code 0307.12, which is reserved for frozen oysters. Importers must ensure that the temperature logs confirm the product never reached freezing temperatures. Another error involves HS code 1605.51, which covers prepared or preserved oysters, including those that are smoked, canned, or breaded. If the oysters are preserved in vinegar or oil, they are also excluded from 0307.11. Finally, oyster spat (seed oysters) for cultivation is also included in 0307.11, though some regional tariffs may provide specific sub-lines for them.

0307.12Molluscs; oysters, whether in shell or not, frozen1605.51Mollusc preparations; oysters, prepared or preserved

Top exporters and importers of HS 030711 (the code used for chilled oysters), 2025

In 2025, the largest exporter of HS 030711 (the code used for chilled oysters) in UN Comtrade data was France, with 37% of world exports; the largest importer in UN Comtrade data was the United States, with 19% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Figures cover everything classified under HS 030711, not only chilled oysters.

Top exporters 2025 · share of world exports

  1. 1 France $140M
  2. 2 Canada $55M
  3. 3 Ireland $42M

World total: $380M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $64M
  2. 2 France $48M
  3. 3 Italy $45M

World total: $344M Reported figures on UN Comtrade ↗

How these figures are built

109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).

Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.

Brazil NCM code for chilled oysters

Brazil classifies chilled oysters under NCM 0307.11.00: HS 0307.11 with 00 added.

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about chilled oysters

What is the HS code for Chilled oysters?

The HS code for Chilled oysters is 030711 (Molluscs; oysters, whether in shell or not, live, fresh or chilled). The HS code for chilled oysters is 0307.11, which includes live, fresh, and chilled oysters, whether in the shell or shucked.

How do I classify Chilled oysters for customs?

Chilled oysters is classified under HS code 030711 — Molluscs; oysters, whether in shell or not, live, fresh or chilled. This is a 6-digit subheading level code.

Are shucked oysters classified differently than those in the shell?

No, HS code 0307.11 covers oysters "whether in shell or not," meaning both shucked meat and whole oysters share the same code.

Which countries are the top exporters of chilled oysters (HS 030711)?

In 2025, the top exporters of HS 030711 (the code used for chilled oysters) in UN Comtrade data were France ($140M, 37% of world exports), Canada ($55M) and Ireland ($42M). World exports came to about $380M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Which countries are the top importers of chilled oysters (HS 030711)?

In 2025, the top importers of HS 030711 (the code used for chilled oysters) in UN Comtrade data were the United States ($64M, 19% of world imports), France ($48M) and Italy ($45M). World imports came to about $344M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.

Is the HS code for Chilled oysters the same in all countries?

The base HS code 030711 for Chilled oysters is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.

What is the NCM code for chilled oysters in Brazil?

In Brazil, chilled oysters (HS 030711) is classified under NCM 0307.11.00.