Technical Grade Boric Acid Flakes from Mexico
Technical grade boric acid flakes are produced by dehydration of borax and used in ceramics, fertilizers, and as a pH buffer in pools. Classified under HTS 2810.00.00.00 as boric acid, meeting Chapter 28's chemically defined criteria. Purity typically 99.5% minimum for industrial use.
Duty Rate — Mexico → United States
11.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Declare exact water content to prevent confusion with anhydrous forms or hydrated borates
• Obtain EPA approvals if intended for pesticide use post-import to avoid seizure
• Use DOT-compliant packaging for corrosive classification during transport