Zinc Phosphite from Japan
Zinc phosphite (ZnHPO3) functions as a corrosion inhibitor and flame retardant in coatings. It is a phosphonate under HTS 2835.10.00.00 as a zinc salt meeting inorganic base criteria. The white powder disperses well in polymer matrices.
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
• TSCA registration needed; specify particle size in specs; test for soluble zinc limits