Amaxabiso e-tungsten eTshayina aqikelelwa ukuba aza kubamba uzinzo phambi kweholide yenyanga entsha ekupheleni kukaJanuwari.Kodwa abathathi-nxaxheba beemarike bayaqhubeka besoyika impembelelo yokungaqiniseki ngokwelizwe kunye nefuthe lako kuphuhliso loqoqosho lwehlabathi kwaye emva koko kwimfuno ebonakalayo kunye namaxabiso.Iimarike ze-tungsten zehlabathi kulindeleke ukuba ziphinde zibuyele kwisiqingatha sesibini sika-2020 njengoko unikezelo kunye nemfuno zisondela kwibhalansi xa kuthelekiswa nonyaka ophelileyo, kodwa ukungazinzi kwezopolitiko kunye neengxabano zorhwebo kuqoqosho olukhulu lwemizi-mveliso kunokunciphisa ukukhula kwemfuno.