2920.90.20.00 - Other

This HTS category, 2920.90.20.00, encompasses esters of other inorganic acids of nonmetals and their salts, as well as their halogenated, sulfonated, nitrated, or nitrosated derivatives, specifically those that are aromatic in nature and not classified elsewhere. These compounds are characterized by the ester linkage formed between an inorganic acid of a nonmetal and an organic radical, and the presence of an aromatic group. Examples may include aromatic phosphate esters, aromatic sulfite esters, and their respective salts, used in a variety of industrial applications.

This classification serves as a residual category for aromatic esters of inorganic acids that do not fall under more specific headings within Chapter 29. It is crucial to distinguish this category from its sibling, 2920.90.10.00, which is exclusively dedicated to pesticides. Therefore, if an aromatic ester of an inorganic acid of a nonmetal is intended for use as a pesticide, it would be classified under the sibling category. This heading, 2920.90.20.00, covers those aromatic compounds not primarily designed or marketed for pesticidal purposes.

As this is a leaf node, there are no further subcategories to introduce. Classification under this heading relies heavily on the chemical structure of the compound, particularly the presence of an aromatic moiety and an ester linkage with an inorganic acid of a nonmetal, while ensuring it is not specifically covered by more explicit classifications, such as pesticides. The absence of specific subheadings indicates that the range of qualifying aromatic compounds is broad, requiring careful examination of each product's chemical composition and intended use.