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Millboard Felt Paper from Japan

Thick, dense felted paperboard known as millboard, used for insulating panels, bookbinding, and gaskets. HTS 4805.50.00.00 covers this uncoated felt paperboard in sheets or rolls, produced by felting wood or rag fibers without chemical coatings. Typically 500-1000 g/m² with high compressive strength.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Submit fiber content analysis (wood/rag percentages) to distinguish from pressed board under 4803; mislabeling causes delays

For gasket end-use, provide specs showing no impregnation, preventing shift to 4811 or rubber composites

Ensure no embossing or printing, as chapter notes direct printed felts to chapter 49 if motifs are primary