8108.20.00.10 - Sponge

This HTS category specifically covers unwrought titanium in sponge form. Titanium sponge is produced through a chemical process, typically the Kroll process, resulting in a porous, metallic mass. This material is a primary form of titanium, intended for further metallurgical processing into alloys, ingots, or other mill products. Its porous structure is a defining physical characteristic that distinguishes it from other unwrought forms.

Distinguishing this category from its sibling "Other" unwrought titanium is crucial. The "Other" designation would encompass unwrought titanium in forms not specifically defined as sponge, such as ingots, bars, or rods that have been melted and solidified, but not yet subjected to further shaping or fabrication into finished articles. Therefore, the defining factor for this category is the specific physical state and production method characteristic of titanium sponge.

As this is a leaf node, there are no further subcategories. Classification under 8108.20.00.10 is therefore solely dependent on the material being unwrought titanium and its presentation in sponge form. It is important to ensure that the imported material is indeed titanium and has been processed to achieve the characteristic porous sponge structure, differentiating it from scrap or processed forms.