8112.99.91.00 - Other

This HTS classification, 8112.99.91.00, encompasses "Other" articles of base metals not specifically enumerated within the preceding subheadings of heading 8112. This heading broadly covers beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium, and niobium (columbium), as well as articles made from these metals, including their waste and scrap. Consequently, this residual subheading serves as a catch-all for any products made from these specific base metals or alloys thereof that do not fit into more narrowly defined categories.

The primary distinction of this "Other" category lies in its residual nature, contrasting it with its siblings that explicitly name specific metals. For instance, while 8112.99.10.00 is dedicated to Germanium and 8112.99.20.00 to Vanadium, this subheading captures articles fabricated from any of the *other* metals listed in heading 8112 that are not otherwise specified. Therefore, classification into 8112.99.91.00 hinges on the absence of a more precise classification for articles made from metals such as beryllium, chromium, hafnium, rhenium, thallium, cadmium, gallium, indium, or niobium.

As a leaf node, this category does not have further subcategories to introduce. Its practical application requires a thorough examination of the material composition of the imported article. If an article is confirmed to be made from one of the base metals listed in heading 8112 and does not fall under the specific enumerations for germanium or vanadium at the 8112.99 level, then it will be classified under this "Other" designation. This ensures that all articles made from these specific uncommon base metals find an appropriate place within the tariff schedule.