9902.10.88 - 1,1,2,2 Tetrafluoroethene, oxidized, polymerized (CAS No. 69991-61-3) (provided for in subheading 3904.69.50)

This HTS category, 9902.10.88, covers the specific product identified as 1,1,2,2 Tetrafluoroethene, oxidized, polymerized, bearing the CAS Number 69991-61-3. This specialized fluoropolymer is a product of chemical synthesis and is distinct from raw materials or other forms of fluorinated polymers. Its classification within Chapter 99 indicates it is subject to temporary legislation or modifications related to trade agreements or specific import restrictions, as outlined in Section XXII of the HTS.

As this is a leaf node within the HTS database, it has no further subcategories. Therefore, the primary classification focus for this entry is on the precise identification of the described chemical substance. Importers and exporters should ensure the product precisely matches the description "1,1,2,2 Tetrafluoroethene, oxidized, polymerized" to correctly utilize this tariff provision.

The classification of this item under 9902.10.88 is specifically provided for within subheading 3904.69.50, indicating that while it falls under the broad category of fluoropolymers, it is subject to specific temporary measures distinct from the general tariff treatment of similar materials. This means that while it is a polymerized tetrafluoroethene, its application of oxidation and polymerization process, along with its unique CAS number, necessitates its placement in this specialized chapter for administrative or policy reasons.