Harmonized System
U.S. exports of Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes (HS 030339) totaled $9.1M in August 2026.
Importers of Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes paid $15K in duties in August 2026, an average duty rate of 4.23% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes imports of $347K in August 2026 ran 23% above the year-to-date monthly average of $281K.
Last updated: August 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.
13 import shipments a month
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.
Subheading 7 of 43 in heading 0303
Subheading 030339 · $9.1M of $339.8M
Trade Directory
List your company under HS 030339 — Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 0303390195 | Flat Fish, Frzn, Except Fillet, Liver & Roe, NESOI | $167K | 3.91% | 100.00% | $7K |
| 0303390110 | Flounder, Frozen Except Fillet, Liver & Roe, NESOI | $166K | 3.23% | 63.76% | $5K |
| 0303390130 | Yellowfin Sole, Frozen, Exc Fillet, Liver and Roe | $7K | 37.69% | 100.00% | $3K |
| 0303390120 | Rock Sole, Frozen, Except Fillets, Livers and Roes | $6K | 0.00% | 100.00% | -- |
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
$347KYoY · free account
Exports
$9.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $4.7M of Frozen Flatfish (NESOI), Whole or Dressed — Except Fillets, Livers & Roes and exported $187.6M.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
China and Italy together take 72% of it.
customs district
origin
entry
rate provision · imports
17.3% enters free of duty; duty collected equals 4.23% of imports for consumption.