2820.10.00.00/Synthetic Manganese Dioxide (EMD)/China

Synthetic Manganese Dioxide (EMD) from China

Electrolytic Manganese Dioxide (EMD) is a high-purity synthetic form of manganese dioxide produced via electrolysis, used primarily as a cathode material in alkaline and zinc-carbon batteries. It falls under HTS 2820.10.00.00 as it is chemically defined manganese dioxide, distinct from natural ores. This powder form ensures consistent performance in dry cell batteries.

Duty Rate — China → United States

29.7%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)

9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Verify purity and chemical composition via lab analysis to confirm classification as synthetic manganese dioxide, avoiding misclassification as natural mineral products

• Obtain Material Safety Data Sheets (MSDS) and ensure packaging complies with UN regulations for oxidizers during transport

• Declare battery-grade specifications if applicable, as end-use documentation may be required for customs valuation