Section 05 Mineral products 26 Ores, slag and ash 26 20 Ash and residues containing metals ormetallic compounds 26 20 99 Ash and residues from the incineration of municipal waste 26 20 99 10 Ash and residues from the incineration of municipal waste Commodity Code Description 26 20 99 10 00 Ash and residues from the incineration of municipal waste