Polystyrene Foam Underlayment Sheets from Mexico
EPS foam sheets used as flooring underlayment for sound and thermal insulation beneath laminate tiles. Classified 3921.11.00.00 as cellular styrene polymer plates. Moisture-resistant grade.
Duty Rate — Mexico → United States
15.3%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Certify compressive strength and R-value specs
• Avoid classification as finished flooring under 3918
• Check dimension limits per heading US note