Capstone Copper Corp. announced the results of a feasibility study (FS) for its Mantoverde Optimized brownfield expansion project (?MV Optimized? or ?MV-O?). Mantoverde (70%-owned by Capstone Copper and 30%-owned by Mitsubishi Materials Corporation) is an open-pit copper-gold mine located in the Atacama region of Chile. Since the 1990s, Mantoverde operated as an oxide mine producing copper cathodes from its 60,000 tonnes per annum capacity SX-EW plant. Last year in 2023, Capstone Copper completed construction of the Mantoverde Development Project (?MVDP?) that enabled the mine to process its copper sulphide reserves, in addition to existing oxide reserves. The MVDP involved the addition of a sulphide concentrator (nominal 32,000 ore tonnes per day (?tpd?)) and tailings storage facility, and the expansion of the existing desalination plant and other minor infrastructure.