Ithimba lethu liqukethe ikakhulukazi onjiniyela bokucutshungulwa kwezimbiwa kanye nonjiniyela bemishini, abahlonyiswe ngamalabhorethri asezingeni eliphezulu, singenza ukuhlola nokucwaninga ngenqubo yobuchwepheshe yezitshalo zokucubungula izimbiwa, okuhlanganisa ukuhlolwa kokuhlomula kwe-ore, ukuhlolwa komshayeli;Ukuhlaziywa kwebanga le-ore yamaminerali ajwayelekile kufaka phakathi i-Pb, i-Zn, i-Fe, i-Cu, i-Li, i-S, i-P ukuhlaziywa, njll.