0304.89.50.91 - Other

This HTS classification, 0304.89.50.91, falls under "Other" frozen fillets of other fish, which are not minced. This category is a residual grouping for frozen fish fillets derived from species not specifically enumerated in preceding subheadings within the broader category of "Frozen fillets of other fish." It encompasses a wide array of fish species that do not have their own distinct tariff line at this granular level, provided they meet the general criteria for fish fillets and are preserved through freezing.

This designation distinguishes itself from sibling categories by its broad inclusiveness. While other subcategories at this level may detail specific species like Atlantic ocean perch, other ocean perch, ocean catfish, or orange roughy, 0304.89.50.91 serves as a catch-all for any other frozen fish fillet that does not fit into those more precise classifications. The primary criterion for inclusion here is the absence of a more specific tariff classification for the particular species of fish in its frozen fillet form.

As this is a terminal classification, there are no further subcategories. The classification relies on the user's ability to exhaust all more specific options within the HTS and then identify the product as belonging to this residual "Other" category. Classification within this code would hinge on ensuring the product is indeed a frozen fish fillet, not minced, and that the species of origin is not specifically listed elsewhere in the 0304.89 subheading.