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HSChapter 03
U.S. imports of frozen flatfish nesoi (flounder, rock sole, yellowfin sole & others, excluding fillets, livers & roes) (HS 030339) totaled $203K in April 2026, traded with 5 countries.
Importers of Frozen Flatfish NESOI (Flounder, Rock Sole, Yellowfin Sole & Others, Excluding Fillets, Livers & Roes) paid $3K in duties in April 2026 — an effective duty rate of 2.0% on $140K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataThe residual flatfish heading captures commercially important species not covered by the plaice, sole, halibut, or turbot headings, with the US schedule breaking out flounder (0303390110), rock sole (0303390120), and yellowfin sole (0303390130) as distinct 10-digit lines alongside two NESOI catch-all lines. Yellowfin sole and rock sole are significant Bering Sea fishery products, making Canada and South Korea — both major processors of North Pacific flatfish — leading suppliers. Importers should pay close attention to species-level documentation, as the line between NESOI flatfish and the named species (plaice, sole) is a frequent classification audit point.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Classification turns on the biological species: plaice (Pleuronectes platessa) goes to 030332; true sole (Solea spp.) goes to 030333; halibut and Greenland turbot go to 030331. All other flatfish — including flounder, rock sole, yellowfin sole, and species not elsewhere specified — fall under 030339. The commercial invoice must identify the species by scientific name to support the correct line selection; a licensed customs broker can assist with borderline cases.
Certain flatfish imports from China may be subject to Section 301 tariffs depending on the specific 10-digit line. Importers sourcing from China should verify the current Section 301 status of the applicable HTS code with a licensed customs broker before shipment, as applicability and rates can change.
Supplier Network
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | -- | $6.7M | +$6.7M |
| NETHERLANDS | -- | $1.7M | +$1.7M |
| INDONESIA | -- | $814K | +$814K |
| THAILAND | -- | $738K | +$738K |
| INDIA | -- | $398K | +$398K |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 0303390110 | FLOUNDER, FROZEN EXCEPT FILLET, LIVER & ROE, NESOI | $197K | 1.66% | $2K |
| 0303390195 | FLAT FISH, FRZN, EXCEPT FILLET, LIVER & ROE, NESOI | $5K | 10.20% | $553 |
FLOUNDER, FROZEN EXCEPT FILLET, LIVER & ROE, NESOI
FLAT FISH, FRZN, EXCEPT FILLET, LIVER & ROE, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 0303390130 | YELLOWFIN SOLE, FROZEN, EXC FILLET, LIVER AND ROE | $4.2M |
| 0303390120 | ROCK SOLE, FROZEN, EXCEPT FILLETS, LIVERS AND ROES | $4.1M |
| 0303390160 | FLAT FISH EXCL FILLETS/LIVERS/ ROES; FROZEN, NESOI | $3.2M |
YELLOWFIN SOLE, FROZEN, EXC FILLET, LIVER AND ROE
2.4M kg
ROCK SOLE, FROZEN, EXCEPT FILLETS, LIVERS AND ROES
2.2M kg
FLAT FISH EXCL FILLETS/LIVERS/ ROES; FROZEN, NESOI
1.5M kg
SHRIMPS AND PRAWNS, FROZEN, NESOI
HS 030617
PACIFIC, ATLANTIC, DANUBE SALMON FILLET FRESH/CHLL
HS 030441
CRABS, INCLUDING IN SHELL, FROZEN
HS 030614
ATLANTIC SALMON AND DANUBE SALMON FRESH OR CHILLED
HS 030214
PACIFIC, ATLANTIC AND DANUBE SALMON FILLETS FROZEN
HS 030481
FISH FILLETS, FROZEN, NESOI
HS 030489
| State | Imports | Exports | Balance |
|---|---|---|---|
| Alaska | -- | $8.7M | +$8.7M |
| Washington | $11K | $2.5M | +$2.5M |
| Texas | $4K | $140K | +$136K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| ANCHORAGE, AK | -- | $10.9M | +$10.9M |
| SEATTLE, WA | -- | $278K | +$278K |
| HOUSTON, TX | -- | $140K | +$140K |