6907.21.90 - Other

This classification covers ceramic flags and paving, hearth, or wall tiles that are not mosaics and possess a water absorption coefficient by weight not exceeding 0.5%. These tiles are further distinguished by their glazed finish. The critical criterion for inclusion here is this low water absorption rate, indicating a dense, non-porous ceramic body, making them suitable for applications requiring resistance to moisture and staining.

The sibling category focuses on a different characteristic: the largest surface area of the tile being capable of being enclosed in a square with a side less than 7 cm. This current node, however, does not impose such a size restriction but rather defines the product based on its water absorption and glazing. Therefore, tiles meeting the low water absorption and glazed finish criteria, regardless of their surface area dimensions (unless they fall under specific exclusions like mosaic cubes or finishing ceramics), will be classified here.

Within this category, two subcategories exist to further refine the classification based on size. The first subcategory (6907.21.90.11) specifically addresses tiles where the largest surface area can be enclosed within a square with sides of 30 cm or less. The second subcategory (6907.21.90.51), designated as "Other," encompasses all remaining glazed tiles that meet the initial criteria of low water absorption but do not fit the size parameters of the preceding subcategory. This allows for detailed tracking of different tile sizes within this specific product group.