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2830.90.90.00/Copper(I) Sulfide Powder/Japan

Copper(I) Sulfide Powder from Japan

Copper(I) sulfide (Cu2S) powder employed in mineral flotation and as a semiconductor material. Classified in HTS 2830.90.90.00 as other chemically defined sulfides.

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%
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Import Tips

• Include spectroscopic analysis to distinguish Cu2S from CuS (covellite)

• Comply with copper import quotas if applicable; declare purity level

• Avoid retail packaging that might trigger consumer product headings