2833.29.10.00/Cobalt Ammonium Sulfate/Japan

Cobalt Ammonium Sulfate from Japan

Double salt of cobalt and ammonium sulfate (CoSO4·(NH4)2SO4·6H2O) used in analytical labs and plating. Falls under HTS 2833.29.10.00 as a sulfate of cobalt, with complex salts directed by Chapter notes.

Duty Rate — Japan → United States

1.4%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Confirm if simple mixture or true double salt via X-ray diffraction for accurate heading 2833 classification

• Include molecular formula on commercial invoice to avoid disputes over complex salt status

• Segregate from organic-stabilized versions that may fall under excluded preparations