4810.13.20 - Weighing more than 150 g/m²

This HTS category, 4810.13.20, specifically classifies paper and paperboard that is coated on one or both sides with kaolin (China clay) or other inorganic substances. Crucially, these papers must weigh more than 150 grams per square meter and are intended for writing, printing, or other graphic purposes, with limited inclusion (not more than 10% by weight) of mechanically or chemi-mechanically processed fibers. The material is supplied in rolls or rectangular sheets of any size.

The primary distinguishing characteristic of this category, as indicated by the "Weighing more than 150 g/m²" description, is its weight per unit area. This differentiates it from its sibling category, which covers similar coated papers weighing 150 g/m² or less. Therefore, accurate weight determination is a critical factor in correctly classifying goods under this heading.

Within this classification, further subdivisions exist to refine the description based on the coating. The subcategories 4810.13.20.10 and 4810.13.20.90 address whether the paper is coated on one side only or otherwise, providing more granular detail for customs purposes. This allows for precise identification of the specific type of coated paper being imported or exported.