1521.90.40.00 - Other

This HTS category, 1521.90.40.00, encompasses "Other" vegetable waxes, other insect waxes, and spermaceti, which have not been classified under more specific headings within Chapter 15. It serves as a residual classification for these types of waxes when they are not specifically refined, colored, or identified as bleached beeswax. The scope extends to include these materials regardless of whether they have undergone refinement processes or have been artificially colored.

This "Other" designation is crucial for distinguishing these waxes from their sibling category, 1521.90.20.00, which specifically covers "Bleached beeswax." Therefore, any vegetable wax, other insect wax, or spermaceti that is not bleached beeswax and does not fit into another more defined subcategory will fall under this heading. The key distinguishing factor is the absence of a specific bleaching process or other defining characteristic that would place it in a separate, more granular HTS classification.

As this is a leaf node within the HTS structure, there are no further subcategories for this specific code. Classification decisions at this level will hinge on determining whether the product is indeed a vegetable wax, other insect wax, or spermaceti and whether it fits the residual criteria of not being otherwise specified or possessing characteristics of a more specific classification. Practical application will require an examination of the material's origin, physical and chemical properties, and the absence of distinct refinements or colorations covered elsewhere.