9902.10.69 - Silane, ethenyltrimethoxy-, reaction products with 1-butene-ethylene-propene polymer (CAS No. 832150-35-3) (provided for in subheading 3902.30.00)

HTS Code 9902.10.69 specifically covers reaction products of ethenyltrimethoxy silane with a 1-butene-ethylene-propene polymer, identified by CAS No. 832150-35-3. This classification falls under Chapter 99, which is reserved for temporary legislation, temporary modifications to trade agreements, and additional import restrictions, particularly those enacted under Section 22 of the Agricultural Adjustment Act. The primary purpose of this provision is to regulate the importation of specific chemical compounds that might otherwise fall under different HTS chapters based on their material composition.

This classification is distinct from broader categories within the HTS, such as those for basic polymers (e.g., subheading 3902.30.00, which is noted as the parent classification for this temporary provision). While the reaction product is derived from a polymer, the temporary nature of HTS 9902.10.69 indicates a specific trade or agricultural policy reason for its separate classification, overriding the standard material-based classification. Unlike the general animal categories listed as siblings (e.g., HTS 0101 to 0105), which deal with live animals, this code addresses highly specialized chemical products.

As HTS Code 9902.10.69 is a leaf node, there are no further subcategories. All goods meeting the precise description of the ethenyltrimethoxy silane reaction product with the specified polymer are classified directly under this code. The classification hinges entirely on the exact chemical identity and the temporary legislative context under which it is being controlled, rather than further subdivisions based on application or physical form.