Section 05 Mineral products 27 Mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes 27 11 Petroleum gases and other gaseous hydrocarbons Commodity Code Description 27 11 11 Natural gas 27 11 12 Propane 27 11 13 Butanes 27 11 14 Ethylene, propylene, butylene and butadiene 27 11 19 Other 27 11 21 Natural gas 27 11 29 Other
