Hexamethylenetetramine with Anti-Caking Agent from Japan
Hexamine powder treated with 0.15% silica anti-caking agent for free-flowing properties. Allowed under HTS 2933.69.5000 per Chapter 29 note (f) as stabilizer necessary for transport.
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 exact anti-caking percentage; >1% risks 3824 classification as mixture
• Silica type (precipitated vs fumed) affects food contact approval status
• Particle size distribution (90% through 20 mesh) important for resin blending