Section 05 Mineral products 27 Mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes 27 13 Petroleum coke, bitumen and other residues of petroleum oils or bituminous minerals oils 27 13 12 Calcined 27 13 12 00 Calcined Commodity Code Description 27 13 12 00 000 Calcined