It is probable that by then there will be an increasing substitution of iron ore by more energy-intensive materials, such as aluminium, silicon, titanium and plastics, provided there is sufficient energy available.
Mhlawumbi ngoko kwakube ulwando olungenelelayo lwentsimbi yimichako enamandla ezinjenge; alumini; isikoni; isiqalelo esithile neplastiki ngaphandle kokuba kukho amandla awoneleyo.