HS Code for Kelp ash

Kelp ash is classified under HS code 2621.90. This classification is found within Chapter 26, which encompasses ores, slag, and ash. Heading 2621 is a broad category for other slag and ash, including seaweed ash, which is specifically mentioned in the Explanatory Notes to the Harmonized System for this heading. Kelp ash is the residual substance remaining after the combustion of seaweed (kelp). Historically, this ash was a primary source of soda ash and iodine. The classification is based on the fact that the product is a residue of incineration rather than a primary vegetable product or a chemically defined compound. General Interpretative Rule 1 applies here, as the product fits the specific description of seaweed ash provided in the nomenclature. It is distinct from processed seaweed used for food or fertilizers, as the chemical and physical state has been fundamentally altered by burning, resulting in a mineral-rich residue used in industrial processes or as a raw material for chemical extraction.

Products Included

• Seaweed ash (Kelp ash)
• Incinerated marine vegetation residue
• Kelp residue for iodine extraction
• Industrial kelp ash

Common Misclassification

Kelp ash is often confused with HS code 1212.21, which covers fresh, chilled, frozen, or dried seaweed and other algae. The critical distinction is that 1212.21 applies to the plant matter itself, even if ground, whereas 2621.90 applies only to the ash remaining after burning. It may also be misclassified under HS code 3101.00 as an animal or vegetable fertilizer. However, because it is an ash residue, it is specifically directed to Chapter 26 by the HS nomenclature.

FAQ

What is the HS code for kelp ash?

The HS code for kelp ash (seaweed ash) is 2621.90, which covers other slag and ash.

One more relevant question

Is dried kelp classified under the same code? No, dried kelp is classified under HS code 1212.21. Only the ash resulting from the incineration of kelp is classified under 2621.90.