The new PEA states that the lack of initial capital costs is due to the company having already built a heap leach pad and extraction circuit last year.
Brazilian oceanographer Leticia Carvalho has been elected the next secretary-general of the ISA, a leadership change that could slow the rush to strip-mine deep sea ecosystems.
At a time when most copper projects are struggling with soaring capital costs, Marimaca expects its eponymous oxide project in Chile’s Atacama Desert to break the mould with a low capital cost of $205 million.