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%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
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