HS Code for Heavyweight unbleached kraft paper

The classification of heavyweight unbleached kraft paper under HS code 4804.51 is based on the chemical wood pulp process (kraft process) and the substantial weight of the material. This code applies to paper and paperboard that is uncoated and unbleached, with a weight of 225g/m2 or more. It is distinguished from other paper products by its high strength and durability, which are characteristic of the kraft process. This specific subheading excludes papers intended for writing, printing, or graphic purposes (heading 4802) and household or sanitary papers (heading 4803). The "heavyweight" designation at 225g/m2 or more places this material in the category of paperboard rather than standard paper. It is primarily used for industrial applications, such as the production of heavy-duty shipping sacks, protective floor coverings during construction, or as a base material for further conversion into specialized industrial products. The absence of bleaching agents ensures the maximum retention of fiber strength, which is why this material is preferred for load-bearing or high-stress packaging environments.

Products Included

• Unbleached kraft paperboard over 225g/m2
• Heavy-duty industrial kraft wrapping
• Uncoated kraft linerboard (virgin pulp)
• Thick unbleached kraft sheets for construction protection
• Kraft paperboard for heavy-duty tube winding

Common Misclassification

A common misclassification occurs with HS code 4804.11, which is specifically for kraftliner. While kraftliner can be heavyweight, 4804.51 is the "other" category for non-liner kraft paperboard. It is also confused with HS code 4804.41, which covers unbleached kraft paper weighing between 150g/m2 and 225g/m2. If the paper is made from recycled fibers, it should be classified under heading 4805.

FAQ

What is the HS code for heavyweight unbleached kraft paper?

The HS code for uncoated, unbleached kraft paper and paperboard weighing 225g/m2 or more is 4804.51.

Can this code be used for recycled paper?

No, heading 4804 is specifically for paper and paperboard where at least 80% of the fiber content is obtained by the chemical sulfate or soda (kraft) process, usually implying virgin fibers.