2908.99.80.00 - Products described in additional U.S. note 3 to section VI

This HTS classification, 2908.99.80.00, pertains to halogenated, sulfonated, nitrated, or nitrosated derivatives of phenols or phenol-alcohols that are not specifically enumerated in preceding subheadings within the 2908 chapter. The "Products described in additional U.S. note 3 to section VI" designation signifies that these compounds fall under a residual category for such derivatives, typically when they don't fit into more narrowly defined classifications based on specific functional groups or chemical structures already detailed in the tariff schedule. This often includes complex or less common substituted phenol derivatives.

The key distinguishing factor for this category, compared to its sibling 2908.99.90.00 ("Other"), is that 2908.99.80.00 specifically applies to those derivatives explicitly listed or referenced within additional U.S. note 3 to Section VI. This additional note provides specific criteria or examples that direct classification to this particular subheading, differentiating it from other "other" categories within the broader classification of phenol derivatives. Classification hinges on meticulous adherence to the specifications outlined in this note, rather than general similarity to other unscheduled phenol derivatives.

As this HTS code is a leaf node, it does not have further subcategories. Therefore, importers and exporters must carefully review the precise chemical structure and the criteria laid out in additional U.S. note 3 to Section VI to ensure correct classification. This often involves consulting chemical documentation, such as Certificates of Analysis or Material Safety Data Sheets, to verify the presence and type of halogen, sulfonate, nitrate, or nitroso groups, and confirm that the compound is indeed a derivative of a phenol or phenol-alcohol that aligns with the conditions specified in the note.