Acoustic Bitumen-Impregnated Fiberboard Panels from Canada
Fiberboard panels with bitumen impregnation for sound absorption, density controlled at 0.35-0.5 g/cm³, not mechanically worked. Precisely matches HTS 4411.94.00.10 definition for low-density impregnated fiberboard. Used in studio and theater ceiling applications.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Certify acoustic performance doesn't require surface perforations (would exclude from classification)
• Maintain import records showing resin binder <3% if questioned on organic substances
• Test for NRC ratings if marketing as acoustic product