4805.91.90.00 - Weighing over 30 g/m²

This HTS category, 4805.91.90.00, encompasses various types of other uncoated paper and paperboard. These materials are supplied in rolls or sheets and have undergone no further processing beyond what is permitted by Note 3 to Chapter 48. Specifically, this subcategory covers paper and paperboard that weighs more than 30 grams per square meter (g/m²), but falls within the broader group of materials weighing 150 g/m² or less. The intended use or specific composition of these papers and paperboards can vary widely, as long as they meet the weight and uncoated criteria.

This classification distinguishes itself from its siblings based on precise weight per square meter. Unlike 4805.91.50.00, which covers materials weighing up to 15 g/m², and 4805.91.70.00, which includes materials weighing over 15 g/m² but not exceeding 30 g/m², this category is for products that are heavier than 30 g/m². This weight threshold is a primary determinant for proper classification within this section of the tariff schedule.

As this is a leaf node, there are no further subcategories within 4805.91.90.00. Therefore, classification at this level is final, relying solely on the defined weight parameters and the general description of "other uncoated paper and paperboard" within the specified weight range. Examples of goods that might fall here include certain types of specialty paper, thick writing paper, or lightweight cardboard sheets that meet the uncoated and weight specifications.