8001.20.00.90 - Containing, by weight, more than 25 percent of lead

This HTS category, 8001.20.00.90, specifically classifies unwrought tin alloys that contain a significant proportion of lead, defined as exceeding 25 percent by weight. These materials, while primarily tin, are modified with a substantial amount of lead to alter their physical properties, such as melting point or hardness, for specific industrial applications. This often includes use in solders, bearing metals, or other specialized alloys where lead is a key alloying element.

It is crucial to distinguish this classification from its siblings. Category 8001.20.00.10 covers tin alloys with a very low lead content, up to 5 percent by weight. Furthermore, category 8001.20.00.50 addresses alloys with an intermediate lead content, ranging from more than 5 percent up to and including 25 percent by weight. Therefore, the determining factor for classification under 8001.20.00.90 is the precise lead content exceeding the 25 percent threshold.

As this is a leaf node within the HTS structure, there are no further subcategories for this specific classification. The classification is definitive once the lead content criterion of greater than 25 percent by weight is met for unwrought tin alloys. All other criteria, such as the material being unwrought and principally tin, are implicitly covered by the broader parent categories.