4016.10.00.00 - Of cellular rubber

This HTS classification, 4016.10.00.00, specifically pertains to articles manufactured from cellular rubber, also commonly referred to as foamed or sponge rubber. These items are characterized by their inherent porous or spongy structure, achieved through the inclusion of gas-producing agents during the vulcanization process. Examples include cushioning materials, gaskets, seals, insulation, and various flexible components where compressibility and shock absorption are key functional requirements. The cellular structure is a defining characteristic that distinguishes these articles from those made from solid vulcanized rubber.

This category is distinct from other categories within Chapter 40, particularly those that deal with articles of solid vulcanized rubber or hard rubber. While all fall under the umbrella of vulcanized rubber articles, the presence and nature of the cellular structure are the primary differentiators for classification under 4016.10. This means that if an article is made of vulcanized rubber but does not possess a discernible cellular or foamed structure, it would be classified elsewhere.

As this is a leaf node, there are no further subcategories within this specific HTS code. Therefore, classification under 4016.10.00.00 is determined solely by the material composition (cellular rubber) and the fact that the article is made of vulcanized rubber. Importers and exporters should focus on confirming the cellular nature of the rubber component when making classifications within this code.