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6903.90.00/Cupel for Fire Assay/Japan

Cupel for Fire Assay from Japan

Magnesia ceramic cupel absorbing lead in precious metal fire assay analysis. Specifically named in HTS 6903.90.00 refractory goods for metallurgical testing. Bone ash-magnesia fired composition.

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

• Assay lab certification; small size doesn't change refractory status

• Common issue: classified as Chapter 38 chemicals

Cupel for Fire Assay from Japan — Import Duty Rate | HTS 6903.90.00