2805.19.90.90 - Other 🖩

This HTS category, 2805.19.90.90, encompasses alkali or alkaline-earth metals not specifically enumerated elsewhere within the 2805.19 provision. Following the general heading for alkali or alkaline-earth metals, and then the "Other" subheadings, this classification serves as a residual category for such metals when they do not fit into more specific sub-classifications. Essentially, it captures alkali or alkaline-earth metals that are not lithium, which is provided for under the sibling category 2805.19.90.10.

The defining characteristic for inclusion in this category is the metallic nature of the element, belonging to the alkali metal group (Group 1 of the periodic table, excluding hydrogen) or the alkaline-earth metal group (Group 2 of the periodic table). These metals are typically highly reactive and are often found in compounds rather than in their pure elemental form in commerce. The "Other" designation signifies that these are metals from these groups that have not been carved out for separate tariff treatment.

As this is a leaf node, there are no further subcategories within 2805.19.90.90. Therefore, classification into this code relies on the exclusion from the more specific lithium classification. Examples of metals that could potentially fall here, depending on their specific presentation and context, include sodium (Na) and potassium (K) from the alkali metals, or calcium (Ca) and magnesium (Mg) from the alkaline-earth metals, when imported in a form not covered by more precise classifications elsewhere in the tariff.