Hokona te wheketere utu nui te konupora parakore teitei i hangaia i Haina. Harvest Enterprise he High Purity Calcium Metal kaihanga me te kaiwhakarato i roto i China.Calcium Metal te kaupapa matua o te konupūmā konganuku ko ki te tukatuka ki matūriki konupūmā konganuku, a ka hanga konupūmā rino waea konupūmā parakore waea konupūmā ranei, e te mutunga whakamahia i roto i te para o te rino me maitai. Ko tana mahi ko te whakaheke me te whakaheke me te whakanui ake i te rere o te rino whakarewa me te whakatairanga i te tere tere o nga whakaurunga i roto i te rino whakarewa, i te nuinga o te waa e whakamahia ana mo te hanga o te maitai-kounga teitei. Ka whakamahia te konupūmā konukawata hei kaihoko whakaheke wai ki te whakaputa waipiro korewai me whakamahia hei desulfurizert i roto i te ahumahi hinu , whakamahia ki te deoxidize desulfurize ranei i roto i te ahumahi whakarewa.Heoi, he tino whanui nga whakamahinga o te konupūmā, ina koa i roto i te ahumahi hanga.
