0304.89.10 - Skinned, whether or not divided into pieces, and frozen into blocks each weighing over 4.5 kg, imported to be minced, ground or cut into pieces of uniform weights and dimensions

This HTS category, 0304.89.10, specifically classifies frozen fish fillets and other fish meat, not minced, that have been skinned and are imported in blocks exceeding 4.5 kg. Crucially, these products are intended for further processing such as mincing, grinding, or cutting into pieces of uniform weights and dimensions. This means the frozen blocks are not considered finished products but rather intermediate goods for subsequent manufacturing or preparation.

Distinguishing this category from its sibling, 0304.89.50 "Other," is the explicit requirement for the frozen fish meat to be in blocks over 4.5 kg and destined for specific processing. The "Other" category would encompass similar frozen fish meat that does not meet these precise processing or packaging criteria.

Within this category, further subdivisions exist to identify specific types of fish. For instance, subcategories exist for "Ocean catfish (wolf fish)," "Pickerel," and "Sauger." A general "Other" subcategory is also present for types of fish not otherwise enumerated, allowing for comprehensive classification of frozen fish meat in blocks meeting the defined processing criteria.