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Subheading 14 of 43 in heading 0303
Subheading 030339 · $874K of $79.9M
U.S. exports of frozen flatfish (nesoi), whole or dressed — except fillets, livers & roes (HS 030339) totaled $21.1M in July 2026.
Importers of Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes paid $28K in duties in July 2026 — an effective duty rate of 13% on $212K in dutiable value, based on actual customs collections rather than the published tariff schedule. Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes imports of $874K in July 2026 ran 222% above the year-to-date monthly average of $272K.
Last updated: July 2026 dataFrozen flatfish not elsewhere specified — including flounder, rock sole (Pleuronectes bilineatus), and yellowfin sole (Pleuronectes asper) — are classified across five 10-digit lines under this HS6 heading: 0303390110 (flounder NESOI), 0303390120 (rock sole), 0303390130 (yellowfin sole), 0303390160, and 0303390195. Canada and South Korea are the leading suppliers, with Iceland, Panama, and Vietnam also significant sources, reflecting both North Pacific wild-capture fisheries and re-export trade flows. Species-level documentation is critical because the NESOI basket is a common destination for misclassified flatfish, and CBP may challenge entries lacking scientific-name support. FDA admissibility review, HACCP compliance, and prior notice requirements apply to all lines; consult a licensed customs broker or FDA compliance specialist before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
28 shipments/mo
Each 10-digit line under 030339 is species-specific where named (flounder at 0303390110, rock sole at 0303390120, yellowfin sole at 0303390130), with the remaining NESOI lines (0303390160 and 0303390195) capturing other flatfish not covered by a named provision. Importers should classify by the scientific species name confirmed in supplier documentation; a mixed-species shipment may require separate line entries or a ruling request from CBP.
Panama's appearance among top suppliers likely reflects transshipment or re-export activity rather than domestic flatfish production, since Panama is a major logistics hub. Importers sourcing through Panama should ensure country-of-origin documentation traces back to the actual harvest nation, as CBP scrutinizes origin claims for seafood routed through transshipment points.
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Supplier Network
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 0303390110 | Flounder, Frozen Except Fillet, Liver & Roe, NESOI | $676K | 0.89% | 8.72% | $6K |
| 0303390195 | Flat Fish, Frzn, Except Fillet, Liver & Roe, NESOI | $198K | 11.22% | 76.99% | $22K |
| 0303390120 | Rock Sole, Frozen, Except Fillets, Livers and Roes | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$874KYoY · Pro
Exports
$21.1MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
China and Korea, South together take 86% of it.
customs district
origin
entry
rate provision · imports
75.8% enters free of duty; the effective duty rate is 3.23%.