3103.19.00.00 - Other

This HTS classification covers phosphatic fertilizers that fall under the category of superphosphates but do not meet the specific criteria for the sibling category. Specifically, it encompasses superphosphates containing less than 35 percent by weight of diphosphorous pentaoxide (P2O5). These are typically single superphosphate (SSP) products, which are a common form of phosphate fertilizer derived from treating phosphate rock with sulfuric acid.

The key distinguishing factor for this "Other" classification is the P2O5 content. Unlike superphosphates with 35 percent or more P2O5 (which would fall under 3103.11.00.00), these products have a lower concentration of the essential nutrient. Classification here relies on laboratory analysis to determine the precise percentage of diphosphorous pentaoxide present in the fertilizer product.

As this is a leaf node, there are no further subcategories within this specific HTS code. Therefore, the classification is final and does not require further subdivision. Importers and exporters should ensure accurate declaration of the P2O5 content to correctly classify these superphosphate fertilizers.