0304.89.50.40 - Other ocean perch

This classification, 0304.89.50.40, specifically covers "Other ocean perch" that are presented as frozen fillets or other fish meat. This designation is for ocean perch that do not fall under more specific subheadings within the broader category of frozen fish fillets. The inclusion of "other" signifies a residual category for this type of fish meat when it doesn't meet the criteria for other listed ocean perch varieties or similar species.

To differentiate, this category is distinct from sibling entries such as "Atlantic ocean perch" (0304.89.50.35), which would be classified under its specific identifier. Similarly, it is separate from other fish species like "Ocean catfish (wolf fish)" or "Dolphin (Mahi mahi)," each having their own designated HTS codes. This "other ocean perch" classification serves as a catch-all for frozen fillets or minced meat of ocean perch species not otherwise enumerated at this level of detail.

As this is a leaf node within the HTS, there are no further subcategories to introduce. Therefore, the primary classification criteria for goods falling under 0304.89.50.40 would revolve around the positive identification of the fish as a type of ocean perch, its presentation as frozen fillets or minced meat, and the exclusion from any more specific sibling classifications. Importers and exporters should ensure accurate species identification to facilitate correct customs processing.