Songnox 168 Phosphite Stabilizer for Polymers from Japan
Songnox 168 is a secondary phosphite antioxidant that synergizes with primary antioxidants to decompose peroxides in polypropylene during extrusion. It qualifies for HTS 3812.39.9000 as a compound stabilizer for plastics. Used in food packaging films and automotive parts.
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
• Include FDA compliance letters if destined for food-contact plastics
• Test for phosphite content to distinguish from general phosphate chemicals
• Package in UN-approved drums; declare as non-hazardous if stabilized