Mu cyumweru gishize, ejo hazaza h'icyuma cya ferrous cyerekanwe ko cyazamutse bitewe n’iterambere ry’isoko ryimigabane. Hagati aho, igiciro ku isoko nyirizina nacyo cyiyongereye mu cyumweru cyose, amaherezo bituma igiciro cy’izamuka ry’ibiciro bitagira umupaka ahanini mu karere ka Shandong na Wuxi.

Kubera ko ibarura ry'imiyoboro idafite umurongo ryahagaritse gukura nyuma y'ibyumweru 4 bikomeza kwiyongera, indi mirongo mike yo kubyara yashyizwe mubikorwa. Ariko, kuzamura ibikoresho bishobora nanone kugabanya inyungu zinganda zicyuma.

Dukurikije ibigereranyo, muri iki cyumweru igiciro cy’igishinwa kitagira kashe ku isoko cyakomeza kuguma gihamye kandi gishobora kuzamuka gato.