Mining Crushed Pumice Fines from Canada
Coarse fines from pumice quarry crushing operations, irregular pieces under 5 cm retaining natural porosity, not screened or graded for uniformity. Falls under HTS 2513.10.00.10 as crushed pumice in crude state, distinct from powdered forms. Applied in horticulture soil amendment and lightweight concrete.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Distinguish 'crushed' from 'powdered' via particle analysis; retain lab sieve tests showing irregular sizing
• Density declarations critical for freight classing; under申报 risks audit penalties
• Eco-certifications boost value—declare if sustainably mined to access green import lanes