Isekelwe eCaliforniaumenzi usimende Brimstone izinhleloukukhiqiza i-alumina yezinga lokuncibilika lase-US ngo-2030. Ngakho kunciphisa ukuncika kwe-US ku-alumina ne-bauxite engenisiwe. Njengengxenye yenqubo yayo yokukhiqiza usimende, i-portland Cement kanye ne-auxiliary cementing tious (SCM) nazo zikhiqizwa njengemikhiqizo ekhiqizwayo.

I-Brimstone engu-$8.7 wezigidi zamaRandi ayizigidi ezingu-189 eminikelo yezindleko zenhlangano evela eMnyangweni Wezamandla. Izoqala ukusebenza kwecala ngo-2025, futhi ihlela ukuvula izigidi ezingama- $ 378imboni yombukiso wezohwebo e2030, qinisa uchungechunge lokuhlinzekwa kwe-alumina yasekhaya futhi adale namathuba emisebenzi.