U.S. imports of Flounder Fillets, Skinned, Frozen Blocks Over 4.5 kg (For Mincing or Grinding) (HS 0304831020) totaled $154K in August 2026, imported from 3 countries.
Importers of Flounder Fillets, Skinned, Frozen Blocks Over 4.5 kg (For Mincing or Grinding) paid $19K in duties in August 2026, an average duty rate of 12.50% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataFrozen skinned flounder fillet blocks classified under HTS 0304831020 serve the seafood ingredient and further-processing sector, where the bulk block format enables efficient mincing, grinding, or precision portioning for value-added products. Flounder is a broad commercial category encompassing multiple species across the Paralichthyidae and Pleuronectidae families, so species-level identification on entry documentation is important both for classification accuracy and for FDA seafood labeling compliance. Importers should be aware that FDA requires acceptable market names on commercial documents, and 'flounder' must correspond to a recognized species. All imported fish fillets are subject to FDA HACCP-based seafood safety requirements.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Average import price $5.20/kg · 2 import shipments a month
This line covers flounder fillets not specifically provided for elsewhere in the HTS. Sole, which is a related flatfish, has its own dedicated line (0304831015), and Greenland halibut/turbot has a separate provision. If a species is commercially marketed as flounder but is taxonomically a sole or halibut, the correct classification depends on the species' accepted trade name and HTS chapter notes.
FDA's seafood HACCP regulations and the agency's Seafood List of acceptable market names both apply. The commercial invoice and eventual consumer label must use an FDA-recognized market name for the specific flounder species. Importers should verify the species name with their supplier before entry to avoid detention or refusal at the port.
Statistical number 6 of 13 in subheading 030483
Statistical number 0304831020 · $154K of $10.6M
Imports · August 2026
origin
China and Indonesia together supply 100% of it.
customs district
None recorded for this period.
destination
Census publishes state breakdowns to the 6-digit level only. See HS 030483 for those.
entry
Census publishes port breakdowns to the 6-digit level only. See HS 030483 for those.
rate provision · imports
None recorded for this period.
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Imports
Imports
$154KYoY · free account
Low of 8 reported months · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026 · imports 8 of 12 months reported. Source: U.S. Census Bureau.