Kelp Seaweed Ash from Japan

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 — 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

• 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