2513.10.00.80 - Other

This HTS category, "Other," under pumice stone, serves as a residual classification for pumice that does not fit the more specific criteria of its sibling category. It encompasses pumice in any form not explicitly described as crude or in irregular pieces, including crushed pumice. This can include pumice that has undergone processing beyond simple crushing, such as sieving into specific particle sizes or being presented in a manner that doesn't strictly qualify as "crude."

The primary distinction of this category lies in its exclusion of the specifically defined "Crude or in irregular pieces, including crushed pumice" found under 2513.10.00.10. Therefore, if a pumice product is not considered raw or broken into rough fragments, but rather has been further refined, sorted, or manufactured into a more specific form, it would likely fall into this "Other" classification.

As this is a leaf node in the HTS structure, there are no further subcategories to introduce. Classification decisions within this category rely on carefully evaluating the physical state and processing of the pumice against the definition of its sibling, ensuring that it does not meet the criteria for crude or irregular forms.