6907.30.90.51 - Other

This HTS category, 6907.30.90.51, encompasses "Other" glazed mosaic cubes and similar ceramic articles that are not specifically classified under subheading 6907.30.90.11. Essentially, it captures glazed mosaic pieces where the largest surface area of an individual piece is *capable of being enclosed in a square with a side exceeding 30 cm*. This includes a variety of decorative and functional ceramic elements intended for mosaic work and finishing applications.

To distinguish this category from its sibling, 6907.30.90.11, the primary criterion is the size of the individual mosaic unit. While 6907.30.90.11 is reserved for smaller mosaic pieces (largest surface area fitting within a 30 cm square), this category addresses larger-sized glazed mosaic cubes and similar items. The "Other" designation indicates that it serves as a residual category for glazed mosaic articles that do not fit more specific size-based or functional classifications within this part of the tariff schedule.

As this is a leaf node in the HTS structure, there are no further subcategories. Therefore, classification into this subheading hinges on meeting the definition of glazed mosaic cubes and the like, with the defining characteristic being that the largest surface area of each piece is larger than what would fit within a 30 cm square. Examples could include larger custom-cut mosaic tiles or irregularly shaped glazed ceramic pieces intended for decorative surfacing where the individual component size exceeds the threshold defined by its sibling.