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3815.90.10.00/Vanadium Boride SCR Catalyst Promoter/Japan

Vanadium Boride SCR Catalyst Promoter from Japan

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 — 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%
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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