Vanadium Boride SCR Catalyst Promoter from Mexico
VB2 used as promoter in selective catalytic reduction (SCR) systems for NOx control. Inorganic vanadium compound accelerates ammonia-SCR reactions under HTS 3815.90.1000. Enhances low-temperature activity.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• NOx conversion efficiency curves proving SCR promoter function
• Distinguish from cutting tool materials through application specifications
• Thermal stability data (>600°C) confirming catalyst-grade specifications