Product classification
HS code for Smoked molluscs: 0307.99
Molluscs, n.e.c. in heading 0307, whether in shell or not, dried, salted, in brine, or smoked, cooked or not before or during the smoking process.
Classification of smoked molluscs under HS 0307.99
The classification of smoked molluscs under HS code 0307.99 is determined by the specific structure of Chapter 3 of the Harmonized System. Heading 0307 is dedicated to molluscs, whether in shell or not, and covers various states including live, fresh, chilled, frozen, dried, salted, or in brine. Crucially, it also includes smoked molluscs. The subheading 0307.99 is a residual or "other" category. This means it is used for species of molluscs that do not have their own specific six-digit subheading within the 0307 group. While oysters, scallops, mussels, cuttlefish, squid, octopus, and clams have dedicated subheadings, other edible molluscs like abalone, whelks, or cockles fall into 0307.99 when they are smoked. The General Rules for the Interpretation (GRI) require that products be classified in the most specific heading possible; however, when a species is not named, the residual "other" category is the correct legal classification. A vital aspect of this classification is that the smoking process may involve cooking before or during the smoking, which is an exception to the general rule that cooked seafood belongs in Chapter 16. If the molluscs are further prepared—for example, by being preserved in oil, vinegar, or a prepared sauce—they would transition to Chapter 16.
- Covers
- Smoked abalone
- Smoked cockles
- Smoked whelks
- Smoked limpets
- Smoked sea urchins (if classified as molluscs in specific jurisdictions)
- Smoked razor clams
- Also under 0307.99
- Dried Whelk (Korean market)
- Salted Razor Clam (Portuguese cuisine)
- Smoked Cockles (Spanish delis)
- Brined Periwinkles (French specialty).
Codes often confused with 0307.99
Common mistake. Smoked molluscs are frequently misclassified under heading 1605, which covers prepared or preserved crustaceans and molluscs. The distinction lies in the degree of processing. If the molluscs are simply smoked, they remain in 0307.99. However, if they are canned in oil or prepared with sauces, they move to 1605.90. Additionally, specific species must be classified under their own codes, such as smoked oysters (0307.19) or smoked mussels (0307.39), rather than the residual 0307.99.
Top exporters and importers of HS 030799 (the code used for smoked molluscs), 2025
In 2025, the largest exporter of HS 030799 (the code used for smoked molluscs) in UN Comtrade data was Canada, with 22% of world exports; the largest importer in UN Comtrade data was Italy, with 12% 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 030799, not only smoked molluscs.
Top exporters 2025 · share of world exports
- 1 Canada $8.7M 22% of world exports
- 2 Senegal $7.6M 19% of world exports
- 3 Spain $6.5M 17% of world exports
World total: $39M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Italy $3.9M 12% of world imports
- 2 Hong Kong $3.9M 12% of world imports
- 3 Canada $3.7M 11% of world imports
World total: $33M 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 smoked molluscs
Brazil classifies smoked molluscs under NCM 0307.99.00: HS 0307.99 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about smoked molluscs
What is the HS code for Smoked molluscs?
The HS code for Smoked molluscs is 030799 (Molluscs; n.e.c. in heading 0307, whether in shell or not, dried, salted, in brine, or smoked, cooked or not before or during the smoking process). The HS code for smoked molluscs not elsewhere specified is 0307.99. This includes species like smoked abalone or cockles.
How do I classify Smoked molluscs for customs?
Smoked molluscs is classified under HS code 030799 — Molluscs; n.e.c. in heading 0307, whether in shell or not, dried, salted, in brine, or smoked, cooked or not before or during the smoking process. This is a 6-digit subheading level code.
Can smoked molluscs be cooked?
Yes, according to the HS heading 0307, molluscs can be cooked before or during the smoking process and still retain this classification.
Which countries are the top exporters of smoked molluscs (HS 030799)?
In 2025, the top exporters of HS 030799 (the code used for smoked molluscs) in UN Comtrade data were Canada ($8.7M, 22% of world exports), Senegal ($7.6M) and Spain ($6.5M). World exports came to about $39M, 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 smoked molluscs (HS 030799)?
In 2025, the top importers of HS 030799 (the code used for smoked molluscs) in UN Comtrade data were Italy ($3.9M, 12% of world imports), Hong Kong ($3.9M) and Canada ($3.7M). World imports came to about $33M, 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 Smoked molluscs the same in all countries?
The base HS code 030799 for Smoked molluscs 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 smoked molluscs in Brazil?
In Brazil, smoked molluscs (HS 030799) is classified under NCM 0307.99.00.