Synthetic Manganese Dioxide (EMD)
Synthetic manganese dioxide (EMD) is a high-purity form of MnO2 produced via electrolysis, used primarily as a cathode material in alkaline and zinc-carbon batteries. It is a chemically defined compound of manganese, classifiable under Chapter 28 as a separate chemically defined compound, and is not excluded by Chapter 28 Note 3.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product contains other manganese oxides as impurities
Impure mixtures of manganese oxides are classified under other manganese oxides.
If the EMD is part of a battery cathode
Battery parts are classified under the battery heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the product is not doped with other elements, as doped forms may fall under other headings
• Keep records of the manufacturing process to demonstrate it is a pure MnO2 compound
• Check if the product requires a workplace hazardous materials information system (WHMIS) safety data sheet for import
Related Products under Tariff item 2820.10.00
Activated Manganese Dioxide
Activated manganese dioxide is a porous, high-surface-area form of MnO2 used as a catalyst in organic synthesis and in water purification filters. It is a chemically defined compound of manganese, meeting the criteria of Chapter 28 Note 1(a) as a separate chemically defined compound, and is not excluded by Chapter 28 Note 3.
Battery Grade Manganese Dioxide Powder
Battery grade manganese dioxide powder is a high-purity form of MnO2 specifically processed for use in primary battery cathodes, offering high discharge capacity and stability. It is a chemically defined compound of manganese, classifiable under Chapter 28 as a separate chemically defined compound, and is not excluded by Chapter 28 Note 3.
Electrolytic Manganese Dioxide for Zinc-Carbon Batteries
Electrolytic manganese dioxide for zinc-carbon batteries is a specialized form of MnO2 produced electrolytically from manganese sulfate solution, optimized for dry cell performance. It is a chemically defined compound of manganese, meeting Chapter 28 Note 1(a), and is not excluded by Chapter 28 Note 3.
Technical Grade Manganese Dioxide
Technical grade manganese dioxide is a moderately pure form of MnO2 used in the production of ferrites, ceramics, and pigments. It is a chemically defined compound of manganese, meeting Chapter 28 Note 1(a), and is not excluded by Chapter 28 Note 3, provided it does not contain added organic or other materials.