LKAB is in every sense a high-tech processing industry. The iron ore from the underground mines in Kiruna and Malmberget is upgraded step-by-step in a long process. LKABís main product range, iron ore pellets, is produced from finely ground highly concentrated iron ore mixed with additives (one or more of dolomite, olivine, quartzite and limestone) and a binder before rolled into 10-15mm balls prior to oxidizing sintering at 1250įC.