Tetrachloroauric Acid Solution from Mexico
Aqueous solution of tetrachloroauric acid (HAuCl4·3H2O) used in etching and nanoparticle synthesis. Classified in HTS 2843.30.00.00 as gold compound, even in solution form.
Duty Rate — Mexico → United States
15%
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
• Specify concentration (e.g
• 30% Au) on invoice to confirm compound status
• Corrosive liquid—use UN-approved bottles with proper labeling