Foamed Slag Concrete Additive from Japan
Fine foamed slag powder incorporated into lightweight concrete mixes for improved insulation. Covered by HTS 6806.20.00.00 as expanded mineral intermixture component. Reduces concrete density by 20-30%.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Particle size analysis (fineness modulus) required for concrete additive verification
• POZZLAN reactivity test results for supplementary cementitious material claims
• Dry storage requirements during transit to prevent premature hydration