4810.13.70 - Other

This HTS category, 4810.13.70, encompasses paper and paperboard that is coated on one or both sides with kaolin (China clay) or other inorganic substances. Crucially, these papers and boards should not have any other coating beyond the inorganic substance, though they may be surface-colored, decorated, or printed. They are presented in rolls or sheets and are intended for writing, printing, or other graphic purposes. The key distinction here is that these papers and boards do not predominantly feature fibers obtained through mechanical or chemi-mechanical processes; if such fibers are present, they must not exceed 10 percent of the total fiber content by weight.

This classification is distinct from its sibling category, 4810.13.60.00, which specifically covers basic paper intended for sensitization in photographic applications. While both fall under coated paperboards for graphic purposes, 4810.13.70 excludes paper specifically prepared for photographic processes, focusing instead on a broader range of graphic arts applications.

The subcategories within 4810.13.70 provide further refinement based on fiber composition. 4810.13.70.20 is designated for products that contain a significant proportion of cotton fiber, specifically 25 percent or more by weight. The remaining products that do not meet this cotton fiber threshold are classified under 4810.13.70.40, "Other," thus ensuring a precise classification based on the material makeup of the coated paper or paperboard.