9902.10.63 - Acid washed beta zeolite powder composed of mixtures of aluminum, silicon and sodium oxides, tetraethylammonium-hydroxide, and organic compounds (CAS No. 1318-02-1) (provided for in subheading 3824.99.92)

This HTS code, 9902.10.63, pertains to a specific type of acid-washed beta zeolite powder. This material is characterized by its composition of aluminum, silicon, and sodium oxides, along with tetraethylammonium-hydroxide and organic compounds. Its designated CAS Number is 1318-02-1. Crucially, this classification falls under Chapter 99, which signifies temporary legislation, modifications proclaimed under trade agreements, or additional import restrictions enacted pursuant to Section 22 of the Agricultural Adjustment Act. This means that while the material itself might otherwise be classified under a different chapter, its importation is subject to these specific, temporary provisions.

Distinguishing this category from its siblings within the HTS database is straightforward due to the distinct nature of Chapter 99. Unlike the sibling categories that primarily cover live animals (Chapters 01), this code addresses a specific chemical product with unique import regulations. The "99" prefix immediately signals that the primary classification considerations are not the inherent characteristics of the substance as a standalone chemical compound, but rather the specific trade policies and restrictions applied to it at a given time.

As this is a leaf node, there are no further subcategories within 9902.10.63. This indicates that the classification is highly specific, and any further breakdown of this particular item would likely involve a reclassification under a different HTS code or a more detailed description of its intended use or origin under separate regulatory frameworks. The focus for importers and exporters is therefore on understanding the specific conditions and requirements associated with the importation of this acid-washed beta zeolite powder under the purview of Chapter 99.