<prompt> Bheka isigaba esingezansi bese uphendula umbuzo olandelayo ngolimi olufanayo nesigaba: Isigaba: Izinhlamvu zemali zesikhumbuzo zethusi, zethusi, zethusi-nickel, zesiliva nezegolide ziye zakhishwa kusukela ngo-1986, kodwa azikaze zisetshenziswe ekujikelezeni.  <response>: Izinhlamvu zemali zesikhumbuzo 