Construction Grade Gypsum from Canada
High-purity gypsum lumps selected for wallboard manufacturing. HTS 2520.10.00.00 covers this crude form before calcining into stucco. Essential raw material for drywall production.
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
• Color and whiteness index testing to meet construction specs without reclassifying as colored plaster
• Quarry origin certificates for supply chain traceability in green building certifications
• Avoid accelerators; even small quantities shift to plaster subheadings