Tungsten foda, ammonium metatungstate (APT) da kuma ferro tungsten farashin a kasar Sin sun ci gaba da tashi a cikin makon da ya ƙare a ranar Juma'a 27 ga Satumba, 2019 a ƙarshen gwanjon hannun jari na Fanya da farashin jagora daga kamfanonin tungsten da aka jera.

Taimakawa ta hanyar ƙara samar da albarkatun ƙasa da tsadar samarwa, masana'antun da suka ƙi sayar da kayayyakinsu kuma sun ɗaga farashi. Kazalika masana’antun da ke narkewa sun daina samarwa ko rage yawan noma yayin da ake gabatowar hutun ranar kasa. A sakamakon haka, samar da APT ya kara tsanantawa kuma wasu farashin sun karya darajar $ 239.70 / mtu, amma ainihin ma'amaloli ba a ƙare ba. Don kasuwar foda tungsten, farashin ya haura zuwa $30.3/kg. Kamfanonin gami na ƙasa sun kasance da wahala don tsara samarwa kuma sun ba da tayi. Sun kasance da hankali sosai.