8506.30.50.00 - Other

This HTS code, 8506.30.50.00, falls under the broader category of mercuric oxide primary cells and batteries, specifically those not covered by the preceding sibling category. While the primary classification for mercuric oxide batteries is determined by their physical dimensions, this "Other" subcategory encompasses mercuric oxide primary cells and batteries that do not meet the volumetric criteria of the sibling entry (i.e., those with an external volume exceeding 300 cm³).

Therefore, this classification serves as a residual category for mercuric oxide batteries, ensuring that all such items are accounted for within the HTS. It captures larger mercuric oxide primary cells and batteries that are not specifically classified under the 8506.30.10.00 code, which is reserved for those with a smaller external volume. This distinction is crucial for accurate customs declarations and the application of appropriate tariffs.

As this is a leaf node in the HTS structure, there are no further subcategories to introduce. The classification is complete at this level, and the focus remains on correctly identifying mercuric oxide primary cells and batteries that fall outside the scope of the sibling entry based on their physical size.