Izintengo ze-tungsten zase-China zibikezelwa ukuthi zizozinza ngaphambi kweholide lonyaka omusha ekupheleni kukaJanuwari. Kodwa abahlanganyeli bemakethe bayaqhubeka nokwesaba umthelela wokungaqiniseki kwezepolotiki kanye nomthelela wako ekuthuthukisweni komnotho womhlaba kanye nokulandela isidingo esibonakalayo namanani. Izimakethe ze-tungsten zomhlaba wonke kungenzeka zibuyele esimweni esihle engxenyeni yesibili ka-2020 njengoba ukunikezwa kanye nesidingo sisondela ebhalansini uma kuqhathaniswa nonyaka odlule, kodwa ukuntengantenga kwezombusazwe kanye nokungezwani kwezohwebo emnothweni omkhulu wezimboni kungakhawulela ukukhula kwesidingo.