HS code · 6-digit subheading

HS Code 0304.42 – Fish fillets; fresh or chilled, trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster)

HS code 0304.42 is the 6-digit subheading for fish fillets, fresh or chilled, trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster). It is used for rainbow trout fillets, brown trout fillets, steelhead trout fillets, golden trout fillets and brook trout fillets.

What HS 0304.42 covers

This HS code pertains to fresh or chilled fillets of various trout species, including Rainbow, Brown, Steelhead, Golden, Brook, Gila, and Apache trout. Trout fillets are a popular choice in many markets, often positioned as a more accessible and sustainable alternative to salmon. The trade is largely supported by extensive aquaculture operations, particularly for rainbow trout, which are farmed globally. These fillets are valued for their delicate flavor and tender texture, making them a favorite in European and North American cuisines. Importers include supermarkets, specialty food stores, and restaurants seeking fresh, high-quality fish. Exporters are typically countries with well-developed freshwater aquaculture industries. Key considerations for trade involve maintaining the cold chain, ensuring product freshness, and increasingly, meeting certifications for sustainable farming practices, as consumers become more environmentally conscious about their seafood choices.

Covers
  • Rainbow trout fillets
  • Brown trout fillets
  • Steelhead trout fillets
  • Golden trout fillets
  • Brook trout fillets
  • Gila trout fillets
Examples
  • Danish Rainbow Trout Fillets
  • Idaho Rainbow Trout Fillets
  • Scottish Brown Trout Fillets
  • Clear Springs Trout Fillets

Codes often confused with 0304.42

Common mistake. Can be confused with 030482 (frozen trout fillets) if the product is frozen, or with 030221-030229 if the trout is whole and not filleted.

0304.82Fish fillets; frozen, trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster)0302.21Fish; fresh or chilled, halibut (Reinhardtius hippoglossoides, Hippoglossus hippoglossus, Hippoglossus stenolepis), excluding fillets, fish meat of 0304, and edible fish offal of subheadings 0302.91 to 0302.990302.29Fish; fresh or chilled, flat fish, n.e.c. in item no. 0302.2, excluding fillets, fish meat of 0304, and edible fish offal of subheadings 0302.91 to 0302.99

Top exporters and importers of HS code 030442, 2025

In 2025, the largest exporter of HS code 030442 in UN Comtrade data was Norway, with 38% of world exports; the largest importer in UN Comtrade data was the United States, with 55% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.

Top exporters 2025 · share of world exports

  1. 1 Norway $93M
  2. 2 Chile $41M
  3. 3 Poland $36M

World total: $246M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 United States $132M
  2. 2 Japan $20M
  3. 3 Canada $18M

World total: $239M 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 0304.42

Brazil does not split HS 0304.42: its NCM code is 0304.42.00.

  1. 0304.42.00 Fresh or chilled trout filletsTrutas (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache e Oncorhynchus chrysogaster)

All Brazil NCM codes in heading 03.04 →

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.

Questions about HS 0304.42

What is HS code 030442?

HS code 030442 is a 6-digit subheading in the Harmonized System that covers: Fish fillets; fresh or chilled, trout (Salmo trutta, Oncorhynchus mykiss, Oncorhynchus clarki, Oncorhynchus aguabonita, Oncorhynchus gilae, Oncorhynchus apache and Oncorhynchus chrysogaster). This HS code pertains to fresh or chilled fillets of various trout species, including Rainbow, Brown, Steelhead, Golden, Brook, Gila, and Apache trout. Trout fillets are a popular choice in many markets, often positioned as a more accessible and sustainable alternative to salmon. The trade is largely supported by extensive aquaculture operations, particularly for rainbow trout, which are farmed globally. These fillets are valued for their delicate flavor and tender texture, making them a favorite in European and North American cuisines. Importers include supermarkets, specialty food stores, and restaurants seeking fresh, high-quality fish. Exporters are typically countries with well-developed freshwater aquaculture industries. Key considerations for trade involve maintaining the cold chain, ensuring product freshness, and increasingly, meeting certifications for sustainable farming practices, as consumers become more environmentally conscious about their seafood choices.

What products fall under HS code 030442?

Rainbow trout fillets, Brown trout fillets, Steelhead trout fillets, Golden trout fillets, Brook trout fillets, Gila trout fillets

What are common misclassifications for HS code 030442?

Can be confused with 030482 (frozen trout fillets) if the product is frozen, or with 030221-030229 if the trout is whole and not filleted.

Which countries are the top exporters of goods under HS code 030442?

In 2025, the top exporters of HS code 030442 in UN Comtrade data were Norway ($93M, 38% of world exports), Chile ($41M) and Poland ($36M). World exports came to about $246M, 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 goods under HS code 030442?

In 2025, the top importers of HS code 030442 in UN Comtrade data were the United States ($132M, 55% of world imports), Japan ($20M) and Canada ($18M). World imports came to about $239M, 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.

How is HS code 030442 structured?

HS code 030442 is a 6-digit subheading under the Harmonized System. The first 2 digits (03) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (42) specify the subheading. This code is standardized globally by the World Customs Organization.

What is the Brazil NCM code for HS code 030442?

In Brazil, HS code 030442 is NCM 0304.42.00. The last two digits are 00 because Brazil does not split this HS code further.