Arca formally agreed in November to work with BHP on the world’s first carbon dioxide (CO2) mineralization project using mine tailings at the Mount Keith nickel mine in Australia. The two had been testing the process since at least 2020. The startup has preliminary agreements with Vale (NYSE: VALE), Stillwater Critical Minerals (TSXV: PGE; US-OTC: PGEZF), IGO (ASX: IGO), EV Nickel (TSXV: EVNI) and Talon Metals (TSX: TLO).
“We leverage historical mine waste to remove atmospheric CO2 safely and permanently,” Arca CEO Paul Needham said in a release. “Our pathway has giga-tonne-scale potential, yet makes no new demands on land or precious water resources because we operate within existing industrial footprints.”
Carbon tax
Carbon capture is gathering steam among mining companies in Canada and elsewhere to meet their own net-zero commitments as concerns about the environment affect corporate images and deter large investors…


