U.S. imports of Manganese Dioxide (HS 282010) totaled $2.0M in August 2026, imported from 9 countries.
Importers of Manganese Dioxide paid $17K in duties in August 2026, an average duty rate of 0.87% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Manganese Dioxide imports of $2.0M in August 2026 ran 12% above the year-to-date monthly average of $1.8M.
Last updated: August 2026 dataManganese dioxide (MnO₂) is the electrochemically active material in alkaline and zinc-carbon dry-cell batteries, making it a high-volume input for the consumer electronics and portable power supply industries. Colombia and Brazil are the leading US import sources under tariff line 2820100000, reflecting significant manganese ore processing capacity in South America. Electrolytic manganese dioxide (EMD) and natural manganese dioxide (NMD) are distinct commercial grades with different purity and electrochemical performance profiles, and buyers typically specify grade in purchase contracts. Japan is also a notable supplier, particularly for high-purity EMD grades used in lithium-ion battery cathode precursors.
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45 import shipments a month
Both EMD and NMD classify under HTS 2820.10 as manganese dioxide, but they differ substantially in purity and electrochemical activity. EMD is produced by electrolytic deposition and achieves higher purity levels required for alkaline battery cathodes. NMD is mined and processed ore used in lower-performance applications. While the HTS heading does not subdivide by grade, commercial contracts and technical specifications routinely distinguish them.
Because MnO₂ is a direct cathode material for alkaline batteries and a precursor in some lithium-ion chemistries, demand is closely tied to consumer electronics production cycles. Concentration of supply in a small number of South American and Asian sources means that logistics disruptions or export-policy changes in those regions can quickly affect US battery manufacturers' input costs and availability.
Subheading 1 of 2 in heading 2820
Subheading 282010 · $2.0M of $2.3M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2820100000 | Manganese Dioxide | $2.0M | 0.87% | 18.45% | $17K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2820100000 | Manganese Dioxide | $719K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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ImportsExports
Imports
$2.0MYoY · free account
Exports
$719KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $19.8M of Manganese Dioxide and exported $10.8M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Colombia and Greece together supply 95% of it.
customs district
entry
rate provision · imports
81.5% enters free of duty; duty collected equals 0.87% of imports for consumption.