Electrolytic Manganese Dioxide (EMD) from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide electrolytic production process certificates to distinguish from natural MnO2 and support 'chemically defined' status
• Comply with TSCA import requirements for new chemical substances if purity exceeds standard battery grades
• Avoid common pitfalls by ensuring particle size specs are documented to prevent reclassification as a micronized preparation