0304.83.10.20 - Flounder

This classification covers frozen fillets of flat fish, specifically those intended for further processing into minced, ground, or uniformly cut pieces. The key defining characteristic here is that these fillets are skinned, may be divided into portions, and are frozen into blocks weighing more than 4.5 kilograms. The intended use—mincing, grinding, or cutting into uniform weights and dimensions—is crucial for this specific classification.

This category is distinguished from its sibling categories by the type of flat fish and its specific preparation. While 0304.83.10.10 covers Greenland turbot, and 0304.83.10.15 refers to sole, this category encompasses other types of flat fish that meet the specified processing and packaging criteria. The "Other" designation signifies that it includes flat fish not explicitly listed in the preceding sibling categories.

As this is a leaf node within the HTS, there are no further subcategories under 0304.83.10.20. The classification is definitive at this level, provided the goods meet all the described criteria: being fillets of flat fish (excluding Greenland turbot and sole), skinned, potentially divided, frozen into blocks exceeding 4.5 kg, and imported for the purpose of being minced, ground, or cut into uniform weights and dimensions.