Skinned Alaska pollock fillets packed in frozen blocks weighing more than 4.5 kg each and destined for mincing, grinding, or cutting into uniform portions occupy this dedicated tariff line, reflecting their distinct commercial role as a bulk industrial input. This format is the standard supply form for surimi producers, fish cake manufacturers, and large-scale breaded seafood processors. Accurate classification hinges on confirming all three statutory conditions — skinned, block weight over 4.5 kg, and intended further processing — since failure to meet any one shifts the product to a different line within the heading. FDA prior notice and SIMP harvest documentation are required at entry.

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