I-tungsten powder kunye ne-ammonium metatungstate (APT) amaxabiso e-China agcina uzinzo xa ifandesi ye-ammonium paratungstate stocks evela kwi-Fanya yokutshintshiselana ngentsimbi ebhangayo ihlala ingacacanga.

Amaqhina kuqoqosho lwamazwe ngamazwe kunye norhwebo nawo akwisiphithiphithi, ngoko ke yonke imarike ibanjwe kukulinda-ubone umoya kunye norhwebo olulinganiselweyo. Imarike ye-molybdenum concentrate inamaxabiso kodwa akukho ntengiso, ixhaswa ngeendleko eziphezulu kunye nokunyuka kwengqondo yabathengisi. Ukongeza, iitshekhi zokusingqongileyo zaseTshayina zenza unikezelo lwempahla ekrwada luqinile. Iifektri zokunyibilikisa zihlala ziphantsi izinga lokusebenza kwimarike ye-APT echatshazelwa yimfuno ebuthathaka kunye neengozi zokuguqulwa kwamaxabiso.