4810.19.20 - Weighing more than 150 g/m²

This HTS category, 4810.19.20, specifically covers paper and paperboard that are coated on one or both sides with kaolin (China clay) or other inorganic substances, with or without a binder, and no other type of coating. These papers can be surface-colored, decorated, or printed, and are supplied in rolls or sheets. Crucially, the defining characteristic of this particular subdivision is that the material weighs *more than* 150 grams per square meter (g/m²).

This classification distinguishes itself from its sibling category, which covers similar coated papers weighing *not more than* 150 g/m². Therefore, the weight threshold is the primary differentiating factor at this level. Both categories fall under the broader heading for coated papers suitable for writing, printing, or other graphic purposes, provided they do not excessively utilize mechanically or chemi-thermally processed fibers.

Within this category, two subcategories exist to further refine the classification based on the coating application. These are "Coated on one side only" (4810.19.20.10) and "Other" (4810.19.20.90), the latter typically encompassing papers coated on both sides or those with more complex coating arrangements not specifically described by the former. This allows for more precise identification based on the specific manufacturing and finishing of the paper product.