Potassium Hexametaphosphate from Japan
Potassium hexametaphosphate is a cyclic polyphosphate used as a sequestrant in water softening and corrosion inhibition. It qualifies for HTS 2835.39.10.00 as 'other' polyphosphates of potassium under Chapter 28. This compound is valued for its ability to bind metal ions.
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
• Use precise nomenclature like 'potassium polymetaphosphate' to match HTS description
• Include end-use declaration if for food grade to avoid fertilizer misclassification
• Watch for anti-dumping duties on phosphate imports from certain origins