Activated Manganese Dioxide from Mexico
Activated manganese dioxide is a porous form of MnO2 used as a catalyst in organic synthesis and water purification filters. It is classified in HTS 2820.10.00.00 as chemically defined manganese dioxide, activated through thermal or chemical treatment to increase surface area. This distinguishes it from natural pyrolusite.
Duty Rate — Mexico → United States
4.7%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include activation method and BET surface area specs in import docs to justify classification
• Ensure REACH or TSCA compliance for chemical registrations in target markets
• Avoid bulk packaging pitfalls by using anti-static liners for powder shipments