8101.94.00.00 - Unwrought tungsten, including bars and rods obtained simply by sintering

This HTS category, 8101.94.00.00, specifically covers unwrought tungsten. This includes tungsten in its primary metallic form, such as powders, lumps, or irregular shapes that have not undergone further substantial working beyond their initial production. Notably, this classification also encompasses bars and rods that are obtained simply by sintering tungsten powder, implying they have been compacted and heated to form a solid mass but have not been subjected to processes like drawing, rolling, or extrusion that would fundamentally alter their form into more finished products.

It is important to distinguish this category from its siblings. 8101.96.00.00 pertains exclusively to tungsten wire, a product that has been drawn through dies to achieve a specific filamentary form. 8101.97.00.00 is designated for waste and scrap tungsten, material that is no longer usable in its original intended form and is destined for reprocessing. The residual sibling, 8101.99, is a broad "other" category for tungsten articles not otherwise specified, which would typically involve more fabricated or processed items than the unwrought forms classified here.

As this HTS code represents a leaf node, there are no further subcategories under 8101.94.00.00. The classification is therefore focused on the precise definition of unwrought tungsten and sintered bars/rods as raw or semi-raw materials, before they are transformed into more specialized forms or products covered by other HTS subheadings within Chapter 81.