Uncalcined Borax Ore (Tincal) from Canada
Tincal, or natural crude borax, is a sodium borate mineral concentrate extracted from evaporated lake deposits and used in metallurgy. It qualifies for HTS 2528.00.0005 as an uncalcined natural sodium borate concentrate from non-brine sources. This form is valued for its fluxing properties in welding.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Require supplier certificates of analysis for B2O3 content; ensure proper ventilation during shipping due to fine dust hazards
• Avoid classification disputes by documenting lack of chemical purification