Foamed Slag Sound Absorbing Panels from Canada
Rigid panels produced from expanded foamed slag aggregates for industrial noise control in factories and machinery enclosures. High-density mineral structure provides superior sound dampening. HTS 6806.10.00.10 includes these as sound-insulating boards of foamed slag mineral materials.
Duty Rate — Canada → United States
13.9%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide chemical analysis of slag composition to distinguish from Chapter 69 ceramics
• Declare STC (Sound Transmission Class) ratings for industrial applications
• Separate from metal enclosures to avoid Chapter 73 or 94 classification as assemblies