4810.19.20.90 - Other

This HTS category, 4810.19.20.90, encompasses paper and paperboard that is coated on both sides with kaolin (China clay) or other inorganic substances. These papers and paperboards are intended for writing, printing, or other graphic purposes and do not contain significant amounts of mechanically or chemi-mechanically processed fibers, with no more than 10 percent by weight of the total fiber content being of such origin. Crucially, the material classified here must weigh more than 150 grams per square meter and have a coating applied to both surfaces.

This classification distinguishes itself from its sibling category, 4810.19.20.10, which specifically covers paper and paperboard coated on one side only. Therefore, to fall under 4810.19.20.90, the inorganic coating must be present on both the recto and verso surfaces of the paper or paperboard. The "Other" designation within this sub-heading signifies that the material meets the criteria for being coated on both sides and weighing over 150 g/m², differentiating it from any other specific sub-classifications within this broader group.

As this is a leaf node, there are no further subcategories. Classification into this specific code therefore relies entirely on meeting all the preceding criteria: being coated on both sides with inorganic substances, suitable for graphic purposes, with a low mechanical fiber content, and exceeding a weight of 150 g/m². Examples might include certain types of heavy-weight coated art paper or specialty printing boards designed for high-quality reproduction where both sides require a smooth, receptive surface.