0511.91.00.90 - Other

This HTS category, 0511.91.00.90, encompasses "Other" products derived from fish, crustaceans, mollusks, and other aquatic invertebrates that are dead and unfit for human consumption, and are not elsewhere specified within Chapter 5. Unlike the specifically listed sibling category for "Fertilized fish eggs" (0511.91.00.10), this residual classification applies to a broad range of dead aquatic animal matter that doesn't fit into more precise headings. Examples could include animal carcasses or parts of aquatic creatures that have not undergone significant processing and are not destined for human food use.

The scope of this subheading is intended to capture those dead aquatic animal products that are not otherwise categorized under more specific provisions within HTS Chapter 5. This might include, for instance, waste materials from fishing or aquatic processing that are not classified as fertilizer or as products for animal feed. The primary distinguishing factor from other categories is the "other" designation, meaning it serves as a catch-all for items that meet the general description of dead aquatic animals unfit for human consumption but lack a more specific HTS code.