Section 05 Mineral products 26 Ores, slag and ash 26 21 Other slag and ash, including seaweed ash (kelp) 26 21 90 Crude potassium salts obtained in the sugar industry from residues of beet molasses 26 21 90 10 Crude potassium salts obtained in the sugar industry from residues of beet molasses Commodity Code Description 26 21 90 10 00 Other