A ranar 31 ga Disamba, 2021, farantin ƙarfe 9Ni mai ƙarancin zafi don tankunan ajiya na LNG (mai ɗauke da iskar gas) wanda Hyundai Steel ta samar ya wuce takardar shaidar duba inganci ta KOGAS (Kamfanin Gas na Koriya ta Kudu). Kauri na farantin ƙarfe 9Ni shine 6 mm zuwa 45 mm, kuma matsakaicin faɗin shine mita 4.5, wanda a halin yanzu shine mafi faɗi a duniya. Amincewar wannan takardar shaidar ta ƙara haɓaka gasa a kasuwar Hyundai Steel a Koriya ta Kudu.
An ruwaito cewa domin a samu wannan takardar shaidar, kamfanin Hyundai Steel da kamfanin Hyundai General Metals Co., Ltd. sun fahimci inda aka sanya dukkan kayan walda. Kamfanin Hyundai Steel ya ce wurin da aka sanya kayan walda zai iya adana kusan kashi 30% na kudin idan aka kwatanta da amfani da kayan da aka shigo da su daga waje.
Farantin ƙarfe mai kauri na 9Ni samfurin farantin ƙarfe ne mai matuƙar aiki wanda ake amfani da shi don tabbatar da amincin tankunan ajiya na LNG na ruwa da na ƙasa. Babban fasalullukansa sune babban abun ciki na nickel da tsarki mai yawa. Tare da riƙe ƙarfi mai yawa da ƙarfin tasiri mai kyau, yana ɗaya daga cikin manyan kayan da ake amfani da su don ƙera manyan tankunan ajiya na LNG.