Coquina Building Stone Blocks from Canada
Coquina, shell-derived calcareous limestone, trimmed into rectangular blocks for coastal architecture and monuments. Density ≥2.5 qualifies it under HTS 2515.20.00.00 as other calcareous building stone.
Duty Rate — Canada → United States
13%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Fossil content documentation helps prove natural calcareous origin
• Saltwater exposure history may require cleaning certificates
• Measure bulk density accurately; porous varieties might fall below 2.5 threshold