Nautilus produces clean high-grade copper from PNG seafloor

Nautilus Minerals has announced it has been able to produce clean high-grade copper concentrate from its sea-floor site in Papua New Guinea. Nautilus is hoping to become the first company in the world to begin commercial mining of the sea-bed and is moving ahead fast in other Pacific Island countires with exploration well underway in Tonga, and licence applications lodged in Fiji and Solomon Islands….more at Radio Australia