Ruthenium on Alumina for Ammonia Synthesis Alternative from Japan
Promoted ruthenium on high-alumina support as lower-pressure alternative to iron-based Haber-Bosch ammonia synthesis catalysts. Classified HTS 3815.12.00 for precious metal supported catalyst. Used in small-scale fertilizer production and hydrogen economy applications.
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
• Declare alkali/earth metal promoters; high-pressure rating certification; potential fertilizer classification if complete formulation