3201.90.25.00 - Extracts of canaigre, chestnut, curupay, divi-divi, eucalyptus, gambier, hemlock, larch, mangrove, myrobalan, oak, sumac, tara, urunday or valonia

This HTS category, 3201.90.25.00, specifically classifies extracts derived from a particular list of vegetable sources, including canaigre, chestnut, curupay, divi-divi, eucalyptus, gambier, hemlock, larch, mangrove, myrobalan, oak, sumac, tara, urunday, and valonia. These extracts are primarily utilized for their tanning properties, playing a crucial role in the leather industry and other applications requiring the conversion of animal hides into durable materials. The defining characteristic for classification under this code is the origin of the extract from one of the enumerated plant species.

This classification is distinct from its sibling category, 3201.90.10.00, which covers tannic acid that contains 50 percent or more by weight of tannic acid. While tannic acid is a type of tannin, this subcategory 3201.90.25.00 focuses on a broader range of vegetable extracts where the specific identity of the plant source is the primary determinant, rather than a precise chemical concentration of tannic acid. The "Other" category, 3201.90.50.00, serves as a residual classification for tanning extracts of vegetable origin not covered by the more specific codes.

As a leaf node in the HTS classification system, there are no further subcategories branching from 3201.90.25.00. Therefore, the classification is considered final at this level. Importers and exporters should ensure that the product in question is indeed an extract from one of the specified plant materials, as opposed to pure tannic acid above the 50% threshold or other unlisted vegetable tanning extracts, to correctly apply this HTS code.