Platinum Black Supported on Alumina from Japan
High-activity platinum black (finely divided Pt metal) on porous alumina for ammonia oxidation in nitric acid plants. HTS 3815.12.0010 due to platinum as active substance on inorganic support. Used in Ostwald process for industrial fertilizer production.
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
• Provide promoter metal analysis (e.g
• trace copper or iron) affecting classification stability
• High-value item—insure shipments and declare full replacement cost
• Thermal shock resistant packaging required for high-temperature process catalysts