2833.29.40.00/Chromium Ammonium Sulfate/Japan

Chromium Ammonium Sulfate from Japan

Chromium ammonium sulfate serves as a precursor in catalyst production and analytical standards. Classified in HTS 2833.29.40.00 as chromium sulfate, though ammonium complexes border 2842. It's a green crystalline material meeting Chapter 28 purity standards.

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

• Provide ammonium content analysis (<10%) to maintain 2833 classification vs 2842

• Lab-grade imports need NIST traceability certificates