0303.89.00.52 - Monkfish (Lophius spp.)

This classification covers monkfish (Lophius spp.) that have been frozen. Monkfish are a type of marine fish known for their distinctive appearance, large mouths, and firm, white flesh. For customs purposes, the key characteristic here is the species *Lophius spp.*, and that the product is presented in a frozen state, excluding fillets and other fish meat classified under heading 0304.

This specific subheading distinguishes monkfish from other "other fish" within the broader category of frozen fish. While sibling categories at this level might include smelts, cusk, shad, sturgeon, and Atka mackerel, this node isolates monkfish for specific tariff treatment. The distinction is based on the distinct biological classification and economic value of monkfish compared to these other fish types.

As a leaf node in the HTS database, 0303.89.00.52 represents the most specific level of classification for frozen monkfish. Therefore, there are no further subcategories to introduce. Classification at this level is definitive for monkfish, ensuring consistent import and export duties are applied based on the species and its frozen presentation.