3102.10.00.10 - Solid urea

This HTS category, 3102.10.00.10, specifically classifies solid urea intended for use as a nitrogenous fertilizer. Urea is a simple organic compound that is a primary source of nitrogen for plant growth, making it a critical component in agricultural applications. This classification applies to urea in any solid form, such as granules, prills, or powder, as long as its intended use is for fertilization.

The distinction of this subcategory lies in its specificity towards solid urea, differentiating it from other forms of urea or nitrogenous fertilizers. While the parent category encompasses all nitrogenous fertilizers, and a sibling category might cover "Other" nitrogenous fertilizers (which could include synthetic organic compounds or mixtures), this particular code targets the solid form of urea exclusively. The preceding level of classification addresses urea in general, whether solid or in aqueous solution, making this HTS code a precise designation for the solid fertilizer product.

As this is a leaf node, there are no further subcategories under 3102.10.00.10. The classification is complete at this level, focusing on the physical state and intended purpose of the urea. Therefore, the practical classification criteria revolve around confirming the material is urea and that it is presented in a solid form for fertilization purposes.