2517.10.00.15 - Pebbles and gravel

This HTS category, 2517.10.00.15, specifically classifies "Pebbles and gravel." These are naturally occurring or processed fragments of rock and mineral material, typically characterized by their rounded or irregular shapes and varying sizes. The primary use for goods classified here is as aggregate materials for construction purposes, including their application in concrete mixes, as material for road surfaces (metalling), and for railway or other ballast. The key defining factor is the form and function of the material as loose, granular stone.

This classification is distinct from its sibling category, 2517.10.00.20, which covers "Limestone, except pebbles and gravel." While limestone can be found in pebble or gravel form, the sibling category is broader and captures various forms of limestone not specifically identified as pebbles or gravel, likely including larger, broken, or crushed pieces or more processed limestone products. Furthermore, 2517.10.00.55, "Other," serves as a residual category for any pebbles, gravel, broken or crushed stone, shingle, or flint that do not fit into the more specific subheadings within heading 2517.10.

As a leaf node, 2517.10.00.15 does not have further subdivisions. Therefore, the classification hinges on the accurate identification of the material as pebbles and gravel, intended for the specified aggregate uses. Any deviation in form, such as significantly larger crushed stone pieces or materials not primarily intended for use as aggregates (e.g., ornamental stones), would likely fall under a different subheading or category.