The distinction rests on whether the seaweed or algae is fit and intended for human consumption. Edible varieties presented for food use—such as nori or wakame—fall under 121221, while algae destined for industrial uses such as agar production feedstock or agricultural applications fall under 121229. Presentation and accompanying documentation help establish intended use.

No. Subheading 121293 covers fresh, dried, or frozen sugar cane as an agricultural raw material, not the extracted juice, raw sugar, or molasses derived from it. Processed sugar products are classified in a separate chapter covering sugars and sugar confectionery.