Section 05 Mineral products 26 Ores, slag and ash 26 20 Ash and residues containing arsenic, or their metallic compounds 26 20 60 Containing arsenic, mercury, thallium or their mixtures, of a kind used for the ..... 26 20 60 00 Containing arsenic, mercury, thallium or their mixtures, of a kind used for the ..... Commodity Code Description 26 20 60 00 000 Containing arsenic, mercury, thallium or their mixtures, of a kind used for the .....