Collapse of PNG deep-sea mining venture sparks calls for moratorium

Papua New Guinea out of pocket $157m from failed attempt at mining material from deep-sea vents as opponents point to environmental risk

The "total failure" of PNG's controversial deep sea mining project Solwara 1 has spurred calls for a Pacific-wide moratorium on seabed mining for a decade.

The company behind Solwara 1, Nautilus, has gone into administration, with major creditors seeking a restructure to recoup hundreds of millions sunk into the controversial project.