Sodium Thiophosphate from Canada
Sodium thiophosphate represents a salt of thiophosphoric acid (inorganic acid of phosphorus/sulfur), used in flotation agents and chemical synthesis. Falls under HTS 2920.90.51.00 per chapter notes for salts of organic/inorganic acid compounds. Mining industry application.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Water content analysis prevents misclassification as hydrated mixture
• Sulfur-phosphorus ratio certification confirms thiophosphate structure