Izintengo ze-tungsten e-China zahlala zingashintshile evikini eliphele ngoLwesihlanu zingama-8 Novemba 2019 ngenxa yokwehla kwezintengo zesibikezelo se-tungsten nokunikezwa okusha. Abathengisi banokuzimisela okuqinile ekusimamiseni amanani entengo emakethe yamanje, kodwa imakethe yayibuthakathaka futhi uhlangothi lwetheminali lwalungaphansi kwengcindezi.

Ngokuncishiswa kwenzuzo yezimboni ezincibilikisayo, ukuthengiselana ezimakethe bekunzima ukukhuphuka. Ngaphansi kwengcuphe yokuguqulwa kwentengo nokwenyuka kwezinhlu, izimboni zehlise ijubane umsebenzi wokukhiqiza ngomkhathi osindayo wokulinda nokubona. Abasebenzisi be-downstream abanazo izimfuneko zokusebenzisa izinto zokusetshenziswa, futhi abathengi badinga amanani aphansi omkhiqizo. Umehluko wamanani entengo yengqondo phakathi kwabathengi nabathengisi uye wanda, futhi amadili ezinsizakusebenza abe nzima kakhulu. Wonke amanani emakethe abesesimweni sokwehla.