2805.19.10.00 - Strontium

This HTS category, 2805.19.10.00, specifically covers strontium, a metallic element. Strontium, as defined here, refers to the pure element in its various forms, such as ingots, powders, or castings, when it is not alloyed with other metals. Its primary applications often involve its use in pyrotechnics for red color, in specialized glass manufacturing, and in the production of certain magnets.

Within the broader category of "Alkali or alkaline-earth metals," this classification distinguishes strontium from its direct siblings, primarily barium (2805.19.20.00). While both are alkaline-earth metals, they are distinct elements with different chemical properties and industrial uses. The "Other" category (2805.19.90) serves as a residual for any other alkaline-earth metals not specifically enumerated at this level.

As this is a leaf node, there are no further subcategories. The classification of strontium at this specific code depends on its identity as the element strontium, distinct from alloys or compounds. The decision to classify an item under 2805.19.10.00 hinges on its composition being primarily strontium, unbound by other metals or incorporated into chemical compounds, which would fall under different HTS chapters.