Nkomati has a substantial resource base represented by disseminated copper-nickel sulphide ores with several major ore bodies. The Main Mineral Zone (MMZ) is comprised of a solid sulphide ore body with a relatively high nickel content. The field also contains a Peridotite Chromite Mineralisation Zone (PCMZ) with a lower metal content vs MMZ and a relatively high chromium content.
Norilsk Nickel Nkomati has MMZ Concentrator with an installed capacity of 375 ktpm (up to 410 ktpm) and PCMZ Concentrator with an installed capacity of 250 ktpm (up to 300 ktpm). Concentrators process the feedstock produced by open-pit and underground mining using the method of sulphide floatation. The produced concentrate is then further processed at Boliden and Kola MMC.
Nkomati is the only nickel concentrate producer in South Africa. Apart from nickel, the concentrate produced by Nkomati contains copper, cobalt, chromium and PGM.
|Average metal content in ore, %|
|Nornickel’s attributable share in the total ore mined, mt||2.8 (average nickel content — 0.37%)|
|Nornickel’s attributable share in the total output of nickel concentrate, kt||8.5|