3904.21.00.00 - Nonplasticized

This HTS category, 3904.21.00.00, specifically covers poly(vinyl chloride) (PVC) that is not plasticized. This means the material has been processed without the addition of plasticizers, which are substances added to polymers to increase their flexibility and workability. Consequently, non-plasticized PVC typically exhibits a more rigid and brittle character compared to its plasticized counterpart. Examples of goods that might fall under this classification include rigid PVC pipes and fittings, window profiles, and certain types of sheets or films where flexibility is not a primary requirement.

The key distinction for this category lies in the absence of plasticizers. Its sibling category, 3904.22.00.00, covers plasticized poly(vinyl chloride). Therefore, when classifying PVC resins or articles, the determining factor at this level is whether plasticizers have been incorporated into the polymer formulation. This difference in composition directly impacts the physical properties and ultimate applications of the PVC material.

As this is a leaf node within the HTS, there are no further subdivisions under 3904.21.00.00. The classification is complete at this level, based on the identification of non-plasticized poly(vinyl chloride) in its primary forms or as articles thereof. Classification within this code requires a confirmation that plasticizers are not present in the material, adhering to the strict definitions and requirements of Chapter 39 of the Harmonized Tariff Schedule.