Activated Alumina Desiccant from Mexico
Porous aluminum oxide beads activated for moisture adsorption in gas drying and water purification. Classified under HTS 2818.20.00.00 as chemically defined aluminum oxide, excluding artificial corundum used for abrasives.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include surface area specs (typically 200-400 m²/g) in documentation to prove adsorbent properties
• Avoid shipping in consumer packaging to prevent retail set classification under heading 3824
• Confirm no artificial corundum processing via manufacturing process declaration