Makampani amigodi kuphatikiza migodi & zitsulo (beneficiation + smelting) ali ndi zofunika kwambiri mavavu pansi pamikhalidwe yovuta kwambiri mumayendedwe amchere ndi smelting.Sing'anga nthawi zambiri imakhala ndi tinthu tating'onoting'ono tating'onoting'ono, kuuma kwakukulu, kukhuthala kwakukulu, asidi amphamvu ndi alkali, ndi zina zotere. Vavu iyenera kukhala yosagwira, yosagwirizana ndi dzimbiri, komanso kuyendetsa bwino kwambiri posankha valavu.HIVAL® imaphatikizapo mavavu a zipata za mpeni, ma valve okhala ndi zitsulo okhala ndi zitsulo, ma valve agulugufe awiri/katatu, omwe nthawi zambiri amakhala opangidwa ndi chitsulo chosapanga dzimbiri, chitsulo cha kaboni, chitsulo chosapanga dzimbiri, ndi zina zotero.