Cobalt(II,III) Oxide (Co3O4) from China
Cobalt(II,III) oxide, or tricobalt tetraoxide, is an olive-black powder used in battery cathodes and pigments. Classified under HTS 2822.00.00 as a cobalt oxide meeting Chapter 28's chemically defined criteria.
Duty Rate — China → United States
25.1%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Provide assay reports showing >99% Co3O4 to distinguish from commercial oxides
• Battery-grade requires REACH compliance docs if from EU; watch for anti-dumping on Chinese origins
• Label as 'not for alloy use' to prevent shift to Chapter 81