Kelp Seaweed Ash from China

Ash produced from burning dried kelp seaweed, rich in potash and minerals, used in fertilizers. Falls under HTS 2621.90.00.00 as 'other slag and ash, including seaweed ash (kelp)', separate from municipal waste.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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)

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Import Tips

• Label as 'seaweed ash' clearly to distinguish from 2621.10 if not pure kelp

• Test for iodine and alkali content; provide certificates for agricultural use

• Avoid bulk packaging that mimics industrial slag, leading to 2620 misclassification