Electronic Grade Phosphoric Acid 99.999% from Mexico
Ultra-high purity phosphoric acid (99.999% H3PO4) for semiconductor etching and wafer cleaning in electronics manufacturing. Falls under HTS 2809.20.00 as chemically defined phosphoric acid, with impurities controlled to parts-per-billion levels per Chapter 28 standards.
Duty Rate — Mexico → United States
10%
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
• Require supplier certificates showing metal impurities <1ppb for cleanroom compatibility
• Use hermetic packaging documentation to prevent contamination claims during transit