2621.90.00.00/Kelp Seaweed Ash/Mexico

Kelp Seaweed Ash from Mexico

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 — Mexico → United States

10%

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
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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

Kelp Seaweed Ash from Mexico — Import Duty Rate | HTS 2621.90.00.00