4804.42.00.40 - Base stock for packaging

This HTS classification covers base stock for packaging, specifically uncoated kraft paper and paperboard. These materials are characterized by their kraft process origins, being bleached uniformly throughout the mass, and consisting of more than 95 percent by weight of wood fibers obtained through a chemical process. Crucially, these products fall within a specific weight range, exceeding 150 g/m² but not exceeding 225 g/m².

The distinction between this subcategory and its sibling, 4804.42.00.50, lies in the precise nature of the "Other" classification. While 4804.42.00.50 represents a residual category for other types of bleached, chemical wood-fiber kraft paper and paperboard within the specified weight range, this category is for a more narrowly defined subset that fits specific end-use criteria as base stock for packaging. The parent categories emphasize the weight and bleaching process, while this level focuses on the intended application as a foundational material for creating various packaging products.

As this node is a leaf node, there are no further subcategories to explore. Therefore, classification within 4804.42.00.40 is definitive for qualifying paper and paperboard that meets all preceding criteria and is intended for use as a primary material in the manufacturing of packaging. Examples of such base stock would include materials used for the production of paper bags, wrapping paper for industrial goods, or liners for corrugated boxes where the inherent strength and chemical properties of bleached kraft paper are paramount for the packaging's integrity.