Mitengo ya tungsten yaku China idakhazikika sabata yomwe idatha Lachisanu Januware 3, 2020 yokhudzidwa ndi tchuthi cha Chaka Chatsopano komanso kufunikira kofunda pamsika.Nyerere zambiri zomwe zimagwira nawo msika zikuyang'anitsitsa kukhazikitsidwa kwa ndondomeko zosiyanasiyana komanso kutulutsidwa kwa maulosi atsopano a mtengo wa tungsten kuchokera ku makampani otchulidwa a tungsten.

Pamsika wokhazikika wa tungsten, ogulitsa anali ndi chiyembekezo chothandizira mfundo ndikugwiritsa ntchito tchuthi ikatha, komanso kuchepa kwamakampani panyengo ya Chikondwerero cha Spring, msika udakwera kwambiri, koma kugulitsa kwamitengo yayikulu sikunamalizidwebe.Msika wa APT unkathandizidwa ndi ndalama zambiri zakuthupi.Mafakitole osungunula adakhalabe otsika kwambiri chifukwa amakumana ndi zovuta kuchokera kumbali yofunikira.Ponena za msika wa ufa wa tungsten, unakhalanso wokhazikika mogwirizana ndi msika wonse.