Magnesium Borate Hydrate from Mexico
Magnesium borate hydrate serves as a lubricant additive and anti-corrosion agent. It falls under HTS 2840.20.00.00 as other borates, being a chemically defined inorganic magnesium salt. Used in drilling fluids and ceramics.
Duty Rate — Mexico → United States
13.7%
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
• Section VI note excludes pure MgO; prove borate dominance
• API specs required for oilfield chemical imports
• Biodegradability claims need substantiation