Product classification
HS code for Frozen fish livers: 0303.91
Fish, frozen, livers, roes and milt.
Classification of frozen fish livers under HS 0303.91
Frozen fish livers are classified under HS code 030391 because they fall within Chapter 3 of the Harmonized System, which covers fish and crustaceans, molluscs, and other aquatic invertebrates. Specifically, heading 0303 applies to fish that are frozen, excluding fish fillets and other fish meat of heading 0304. Subheading 030391 is a specific designation for the edible livers, roes, and milt of fish. The classification is determined by the state of the product (frozen) and the specific anatomical part (liver). Since these are intended for human consumption and have not been processed beyond freezing, they remain in this primary category. The Harmonized System prioritizes the preservation method and the specific part of the fish when determining the six-digit code. This ensures that nutrient-dense organs like livers are tracked separately from standard muscle meat, which is critical for both nutritional statistics and trade regulations.
- Covers
- Frozen cod livers
- Frozen halibut livers
- Frozen salmon livers
- Frozen tuna livers
- Frozen skate livers
- Also under 0303.91
- Frozen Norwegian Cod Roe
- Frozen Ikura (salmon roe)
- Frozen Tobiko (flying fish roe)
- Frozen Masago (capelin roe)
- Frozen Lumpfish Roe
Codes often confused with 0303.91
Common mistake. Frozen fish livers are frequently confused with HS code 030291, which is the code for fresh or chilled fish livers. The distinction rests entirely on the method of preservation. Another common error is classifying them under 150410, which is reserved for fish-liver oils and their fractions. If the liver has been processed to extract oil, it moves from Chapter 3 to Chapter 15. Additionally, if the livers are prepared or preserved (e.g., canned in brine or smoked), they may fall under 160420.
Top exporters and importers of HS 030391 (the code used for frozen fish livers), 2025
In 2025, the largest exporter of HS 030391 (the code used for frozen fish livers) in UN Comtrade data was the United States, with 43% of world exports; the largest importer in UN Comtrade data was Japan, with 54% 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 030391, not only frozen fish livers.
Top exporters 2025 · share of world exports
- 1 United States $535M 43% of world exports
- 2 Russia* ~$272M 22% of world exports · partner records ↗
- 3 China $79M 6.3% of world exports
World total: $1.2B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Japan $652M 54% of world imports
- 2 China $129M 11% of world imports
- 3 Taiwan* ~$102M 8.6% of world imports · partner records ↗
World total: $1.2B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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. UN Comtrade records Taiwan as "Other Asia, not elsewhere specified". Saudi Arabia's exports under that code are left out: they are far too large to be trade with Taiwan, so mostly undisclosed partners. 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 codes for frozen fish livers
Brazil splits HS 0303.91 into 2 NCM codes. Pick the one that matches your product:
- 0303.91.10Frozen mullet roe
- 0303.91.90Other frozen fish livers, roes and milt
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about frozen fish livers
What is the HS code for Frozen fish livers?
The HS code for Frozen fish livers is 030391 (Fish; frozen, livers, roes and milt). The HS code for frozen fish livers is 030391, which covers frozen fish livers, roes, and milt.
How do I classify Frozen fish livers for customs?
Frozen fish livers is classified under HS code 030391 — Fish; frozen, livers, roes and milt. This is a 6-digit subheading level code.
Does this code include livers from all fish species?
Yes, 030391 is a general category for frozen livers from any fish species, provided they are fit for human consumption and have not been further prepared.
Which countries are the top exporters of frozen fish livers (HS 030391)?
In 2025, the top exporters of HS 030391 (the code used for frozen fish livers) in UN Comtrade data were the United States ($535M, 43% of world exports), Russia (about $272M) and China ($79M). World exports came to about $1.2B, 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 frozen fish livers (HS 030391)?
In 2025, the top importers of HS 030391 (the code used for frozen fish livers) in UN Comtrade data were Japan ($652M, 54% of world imports), China ($129M) and Taiwan (about $102M). World imports came to about $1.2B, 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 Frozen fish livers the same in all countries?
The base HS code 030391 for Frozen fish livers 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 frozen fish livers in Brazil?
Brazil splits HS 030391 into 2 NCM codes, so the right one for frozen fish livers depends on the product's details: 0303.91.10 (Frozen mullet roe), 0303.91.90 (Other frozen fish livers, roes and milt).