4008.29 - Other:

This HTS category, 4008.29, encompasses articles of vulcanized rubber, other than hard rubber, that are in the form of plates, sheets, strip, rods, and profile shapes, but are not specifically classified as "Plates, sheets and strip" under 4008.21.00.00. It focuses on rubber articles with distinct three-dimensional geometries and cross-sections that are not flat and continuous like sheets or strips. The key characteristic is their non-cellular rubber composition, meaning the rubber material itself is solid and dense, rather than containing voids or cells.

The distinction from the sibling category 4008.21.00.00 is crucial; while both deal with vulcanized rubber in certain forms, 4008.29 specifically excludes the flat, planar articles covered by 4008.21. This node captures more complex cross-sectional forms or dimensions that are not typically described as simple plates, sheets, or strips. For instance, rubber rods or pre-formed shapes designed for specific applications would fall here.

Within 4008.29, further subdivisions clarify the precise nature of these rubber articles. The subcategory 4008.29.20.00 addresses "Profile shapes," which are typically extruded or molded rubber articles with a defined, non-uniform cross-section, often designed for sealing, cushioning, or structural purposes. The remaining items that do not fit the definition of profile shapes are classified under 4008.29.40.00, under the residual "Other" designation, ensuring all non-cellular vulcanized rubber articles of these forms are accounted for.