3102 - Mineral or chemical fertilizers, nitrogenous:

This HTS category, 3102, encompasses a broad range of nitrogenous mineral or chemical fertilizers. These are primarily synthetic compounds designed to provide nitrogen to plants, a crucial nutrient for growth. The scope includes pure nitrogenous compounds as well as mixtures where nitrogen content is a defining characteristic for their use as fertilizer. Examples include substances like urea and ammonium sulfate, vital for agricultural productivity.

Distinguishing 3102 from its siblings at the root level (Chapter 01) is straightforward. While sibling categories in Chapter 01 deal with live animals, Chapter 31, and specifically this node, focuses entirely on chemical products intended for agricultural fertilization, not living organisms. The parent context, Section VI, further reinforces this distinction by grouping all chemical products, including fertilizers, separately from live animals or other chapters.

Within HTS 3102, further subdivisions exist to classify specific nitrogenous fertilizers based on their chemical composition and form. These subcategories allow for precise identification of products such as pure urea (3102.10), ammonium sulfate, double salts, and mixtures involving ammonium nitrate (3102.20 onwards), sodium nitrate (3102.50), and various combinations of these compounds. The intent behind these subdivisions is to differentiate based on the primary nitrogen source and the presence of other inorganic materials, which can influence their agricultural application and value.