Calidus Resources, an ASX-listed gold miner, has collapsed with its main financier, Macquarie, calling in receiver KordaMentha at the weekend.

It remains unclear why Macquarie called time on the company, which runs the Warrawoona mine near Marble Bar and was working with SQM, one of the world’s largest lithium miners, to develop the Pirra lithium project in the Pilbara.