6907.23.90.51 - Other

This HTS category, 6907.23.90.51, covers "Other" glazed ceramic flags, paving, hearth, or wall tiles that have a water absorption coefficient by weight exceeding 10 percent. This means the ceramic material itself is porous, allowing it to absorb a significant amount of water. These tiles are designed for decorative or functional purposes in construction and are distinguished by their glazed finish, which provides a non-porous outer surface that can be varied in color, texture, and pattern.

The key differentiator for this subcategory is its exclusion from more specific sibling classifications based on size. While sibling category 6907.23.90.11 specifically enumerates tiles where the largest surface area can be enclosed by a square with sides of 30 cm or less, this category encompasses all other glazed ceramic tiles meeting the water absorption criteria that do not fit into that specific size-based exclusion. Therefore, it captures larger-format glazed tiles or those with irregular shapes that do not conform to the specified dimensional limits of its sibling.

As this is a terminal node within the HTS structure, there are no further subcategories to introduce. The classification ends at this point, signifying that the described glazed ceramic tiles, characterized by high water absorption and not falling into the smaller size category of their sibling, have been fully defined and categorized for customs purposes.