4001.22.00.50 - Other

This HTS category, 4001.22.00.50, specifically designates "Other" forms of technically specified natural rubber (TSNR). It serves as a residual classification for TSNR that does not fit into the more precisely defined grades listed under its sibling categories. TSNR, in general, refers to natural rubber that has been processed and graded to meet specific technical specifications for properties such as viscosity, dirt content, and cure characteristics, enabling more consistent performance in manufacturing processes compared to standard natural rubber.

The distinction between this "Other" category and its sibling entries (e.g., Grade 5, Grade CV, Grade L, Grade 10, Grade 20) lies in the absence of a defined technical specification or grade name for the natural rubber falling under 4001.22.00.50. While the sibling categories represent clearly defined TSNR grades with established properties, this category is for TSNR that may possess unique or uncatalogued technical specifications, or for material where the specific grade designation is not readily available or applicable. The classification is therefore dependent on the material being natural rubber, processed to achieve technical specifications, but not aligning with the pre-defined graded categories.

As this is a leaf node within the HTS, there are no further subcategories to introduce. Classification under 4001.22.00.50 is the final determination for qualifying technically specified natural rubber that does not meet the criteria for any of the preceding sibling categories. Importers and exporters should ensure that any natural rubber classified here genuinely meets the broad definition of technically specified natural rubber, even if a specific grade cannot be identified.