Synthetic Manganese(IV) Oxide for Ceramics
Synthetic MnO2 used as a colorant and flux in ceramic glazes and tiles, providing black-brown hues. It is classified in HTS 2820.90.00.00 as other manganese oxides, fitting Chapter 28 for inorganic metal oxides. Not excluded as a luminophore or glass frit per chapter notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If prepared as inorganic pigments for paints
Chapter 28 excludes luminophores or pigments of heading 3206; finished colorants shift there.
If natural earths containing manganese oxides
Natural mineral products like manganese ore are in Chapter 25, not synthetic oxides in Chapter 28.
If blended with binders for ready-to-use glazes
Prepared mixtures or pastes for retail or industrial use fall under chemical preparations in 3824.
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Import Tips & Compliance
• Label packages with intended end-use (ceramic colorant) to prevent misclassification as a pigment preparation under 3206
• Ensure COA shows >90% MnO2 content to qualify as chemically defined, avoiding 3824 mixtures
• Watch for EU REACH authorizations on manganese oxides; prepare downstream user notifications for US entry
Related Products under HTS 2820.90.00.00
Manganese Dioxide (MnO2) Powder
High-purity manganese dioxide powder used in the production of dry-cell batteries like alkaline and zinc-carbon types. It falls under HTS 2820.90.00.00 as an 'other' manganese oxide, chemically defined as a metal oxide in Chapter 28. This inorganic compound serves as a depolarizer in battery cathodes.
Electrolytic Manganese Dioxide (EMD)
Electrolytic manganese dioxide (EMD), a high-purity form produced via electrolysis, primarily for lithium-ion and alkaline battery cathodes. Classified under HTS 2820.90.00.00 as other manganese oxides, it is a chemically defined inorganic compound per Chapter 28 Note 1. Its gamma crystal structure enhances battery performance.
Manganese Oxide Nanoparticles
Nano-sized manganese dioxide particles (<100nm) for catalysts in chemical reactions and water treatment. Falls under HTS 2820.90.00.00 as other manganese oxides, chemically defined despite nanoscale form. Used in advanced oxidation processes for pollutant degradation.
Trimanganese Tetraoxide (Mn3O4) Powder
Mn3O4, or trimanganese tetraoxide, used in ferrites for magnetic applications and as a sintering aid. Classified under HTS 2820.90.00.00 as other manganese oxides, a mixed-valence inorganic compound in Chapter 28. Provides magnetic properties in soft ferrites.