</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2528.00.00.05/Calcined Sodium Borate Flux Grade/Canada

Calcined Sodium Borate Flux Grade from Canada

This calcined concentrate of natural sodium borates is processed for use as a flux in glassmaking and enameling industries. HTS 2528.00.0005 covers it explicitly as calcined natural sodium borates from mineral sources, not brine. It lowers melting points in high-temperature applications.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Calculate with your customs valueVerify classification with AI

Import Tips

• Include calcination temperature logs in documentation; test for heavy metal contaminants per import standards

• Use heat-sealed packaging to prevent moisture reabsorption

Calcined Sodium Borate Flux Grade from Canada — Import Duty Rate | HTS 2528.00.00.05