Natural Perlite Rock from Canada
Crude perlite ore, a glassy volcanic rock in unexpanded form, suitable for expansion into lightweight aggregates. Falls under HTS 2530.90.8050 as unexpanded perlite per chapter notes, distinct from processed or expanded forms. Used in filtration, insulation, and horticulture after further processing.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify particle size distribution in documentation to confirm unexpanded status; use dust-suppression packaging for fine particulates; check for radioactivity certificates from volcanic sources