4804.51.00.00/Unbleached Kraft Linerboard 300 gsm/Japan

Unbleached Kraft Linerboard 300 gsm from Japan

Unbleached kraft paperboard in rolls, weighing 300 g/m², made from at least 80% sulfate process wood fibers, used as the outer liner for corrugated boxes. It meets kraftliner specifications with high Mullen bursting strength suitable for heavy-duty packaging. Classified under 4804.51.00.00 as uncoated kraft paperboard over 225 g/m², unbleached, not qualifying as newprint under 4802/4803.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Verify fiber composition exceeds 80% sulfate/soda wood fibers via lab testing to confirm kraft status and avoid reclassification

• Provide mill test certificates showing weight ≥225 g/m² and unbleached status; common pitfall is misdeclaring bleached variants

• Ensure documentation distinguishes from heading 4802/4803 newprint base paper to prevent duty adjustments