Construction Grade Gypsum from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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