Flame-Retardant PS Foam Sheets from China
Cellular polystyrene sheets with chemical modification for fire resistance in building/construction. Still 3921.11.00.00 as base styrene polymer per subheading note (c). Self-extinguishing.
Duty Rate — China → United States
42.8%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Import Tips
• Document flame retardant as modification not changing base polymer
• UL certifications speed clearance
• Avoid 'Other' subheading confusion