Ngokusho kwedatha ye-International Aluminium Association, ngoMeyi 2021, ukuphuma kwe-alumina yomhlaba wonke kwakungamathani ayizigidi ezingu-12.166, ukwanda kwe-3.86% ngenyanga;Ukukhula konyaka nonyaka ngo-8.57%.Kusukela ngoJanuwari kuya kuMeyi, ukukhiqizwa kwe-alumina emhlabeni wonke kufinyelele amathani ayizigidi ezingama-58.158, okuwukunyuka konyaka...
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