7005.21.10 - Measuring less than 10 mm in thickness

This HTS category, 7005.21.10, encompasses sheets of float glass or surface ground/polished glass that are colored throughout the mass, opacified, flashed, or merely surface ground. These characteristics distinguish them from clear glass. Crucially, this specific classification applies to such glass sheets that measure less than 10 millimeters in thickness. The "not otherwise worked" condition in the parent category signifies that further processing like cutting to shape, drilling, or tempering is not included here.

The primary distinction from its sibling category, 7005.21.20.00, lies solely in the thickness of the glass. While this subcategory covers glass under 10 mm, the sibling category specifically addresses glass measuring 10 mm or more in thickness. Both categories share the common traits of being non-wired, colored throughout, opacified, flashed, or surface ground.

To further refine classification within this category, two subcategories exist based on more precise thickness measurements. 7005.21.10.10 covers glass measuring less than 5 mm in thickness, while 7005.21.10.30 applies to glass that is 5 mm or more but less than 10 mm in thickness. These subdivisions allow for a more granular identification of the specific glass product being imported or exported, based on precise dimensional criteria.