2517.10.00.55 - Other

This HTS category, 2517.10.00.55, specifically addresses "Other" materials within the broader heading of pebbles, gravel, broken or crushed stone, shingle, and flint. It is designed to capture items that fit the general description of being commonly used for concrete aggregates, road construction, or railway ballast, but do not fall into the more specific subcategories provided. This designation ensures that all qualifying stones and stone-like materials not otherwise classified are correctly accounted for.

Crucially, this "Other" category differentiates itself from its sibling, 2517.10.00.15 (Pebbles and gravel), and 2517.10.00.20 (Limestone, except pebbles and gravel). While those categories are reserved for distinct types of material based on their form and specific mineral composition, 2517.10.00.55 serves as a residual classification. It is for materials that meet the general use criteria but are not exclusively pebbles, gravel, or specifically identified limestone.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. The classification at this level hinges on the fundamental nature of the material and its intended application. Therefore, precise identification of the stone's origin, size, shape, and its role in construction or infrastructure projects is paramount to correctly assigning goods to this "Other" classification rather than a more specific sibling category.