2916.39 - Other:

This HTS category, 2916.39, encompasses "Other" aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids, and their derivatives not specifically enumerated in preceding subheadings within 2916.3. It serves as a residual category for aromatic carboxylic acid derivatives that do not fit into more precisely defined classifications such as benzoic acid and its salts/esters (2916.31), benzoyl peroxide and benzoyl chloride (2916.32), or phenylacetic acid and its salts (2916.34). The key distinguishing factor for goods classified here is their aromatic monocarboxylic acid structure and the absence of a more specific HTS heading.

The subcategories within 2916.39 provide further granular detail for classification purposes. For instance, specific examples like cinnamic acid, ibuprofen, and various chlorinated or nitrated benzoic acid derivatives are explicitly listed. These subdivisions address common or commercially significant compounds that are structurally similar to the sibling categories but require a distinct classification. The inclusion of specific names and chemical structures within these subcategories is crucial for accurate tariff application, ensuring that goods are correctly identified and duty rates are applied appropriately. The final "Other:" designation within the subcategories signifies a further residual classification for any aromatic monocarboxylic acid derivatives that do not fit even these more specific subdivisions.