Alumina Refining Soda Lye 48% from Mexico
48% high-strength aqueous sodium hydroxide for Bayer process in alumina extraction from bauxite ore. Classified HTS 2815.12.00.00 as liquid caustic soda, chemically defined per Note 1 Chapter 28. Critical for digesting aluminum oxides in mining operations.
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
• Bulk railcar imports require AAR certification for caustic service
• Test for iron content (<1 ppm) critical for alumina process; document accordingly