Section 05 MINERAL PRODUCTS 26 ORES, SLAG AND ASH 26 20 SLAG, ASH AND RESIDUES (OTHER THAN FROM THE MANUFACTURE OF IRON OR STEEL) 26 20 30 OTHER SLAG, ASH & RESIDUES CONT. MAINLY COPPER Commodity Code Description 26 20 30 00 OTHER SLAG, ASH & RESIDUES CONT. MAINLY COPPER