ma KaleponiʻO nā papahana Brimstone mea hana simae hana i ka alumina smelting-grade US ma 2030. Pela e hoemi ai i ka hilinai ana o ka US i ka alumina a me ka bauxite i laweia mai. Ma ke ʻano he ʻāpana o kāna kaʻina hana decarbonization cement, ua hoʻopuka ʻia ʻo portland cement a me auxiliary cementing tious (SCM) e like me nā huahana.

ʻO Brimstone $8.7 miliona o ka $189 miliona i nā hāʻawi kālā federal mai ka 'Oihana o Energy. E hoʻomaka i nā hana hoʻokolokolo ma 2025, a hoʻolālā e wehe i kahi $ 378 milionamea kanu hoikeike kalepa ma2030, hoʻoikaika i ke kaulahao lako alumina home a hana i nā hana.