9902.10.90 - 1-Propene, 1,1,2,3,3,3-Hexafluoro-, oxidzed, polymd., reduced, hydrolized reaction products with ammonia (CAS No. 370097-12-4) (provided for in subheading 3904.69.50)

This HTS category, 9902.10.90, covers a specific set of reaction products derived from the chemical modification of 1-propene, 1,1,2,3,3,3-hexafluoro-. The process involves oxidation, polymerization, and reduction, followed by a reaction with ammonia. The resultant chemical substance, identified by CAS No. 370097-12-4, is subject to temporary legislation and special classification provisions. It is specifically provided for under subheading 3904.69.50, indicating its relationship to fluorinated synthetic polymers.

Given that this is a leaf node, there are no further subcategories to introduce. Its distinctiveness from sibling categories lies in its highly specific chemical composition and manufacturing process. Unlike broad categories for raw materials or general polymers, this classification is reserved for this particular complex chemical product. It highlights the HTS system's ability to account for specialized substances through unique codes within the temporary and special provisions chapters.

The scope of Chapter 99, where this code resides, is dedicated to temporary legislation, modifications to trade agreements, and restrictions imposed under specific agricultural acts. Therefore, classification within 9902.10.90 signifies that the goods are subject to these special import rules, which may differ from the standard classification and duties applicable under other chapters of the HTS. Importers should consult relevant trade agreements and proclamations for the specific regulations applicable to this product.