By MALUM NALU
Nautilus Nautilus
Minerals, which is set to start revolutionary underwater mining at Solwara 1 in the Bismark Sea between
East New Britain and New Ireland provinces in 2013, has already secured a
Chinese buyer for its first three years of operation, The National reports.
This was
confirmed by Nautilus country manager Mel Togolo at a mining and petroleum
workshop for PNG media at the Gateway Hotel in Port Moresby last Friday.
He said indicated resource was one metric tonne at 7.2% copper and 5 grammes/tonne gold while inferred resource was 1.5 metric tonnes at 8.1% copper
and 6.4 g/t gold.
The material will be treated by conventional grinding
and flotation and
will produce a copper concentrate of 25-30% with recoveries
of between 85-90%.
Fifty per cent of the gold
will be recovered in the copper concentrate.
“We have recently signed
a landmark offtake agreement with Tongling Nonferrous Metals Group Co for a period of three
years commencing upon the first delivery of product from Solwara 1,” he said.
“So in the first phase
there will be no treatment at site, no tailings and minimal shore based
infrastructure required.
“We currently estimate
the operating cost to bring material from the seafloor and get it to shore will
be approximately US$80/tonne, and then on
top of that there will be shipping and processing costs.
“We have not produced a
feasibility full feasibility study outlining the project economics, but our
competitors are producing copper at a cost of around $1 per pound and we would
expect to be very competitive.”
Togolo said based on current metal prices, a tonne of Nautilus material
currently was worth about US$, 1,000.
“We expect to produce
around 1.3 million tonnes per year, leading to production of 80,000 tonnes of copper and 150,000 ounces of gold a year.
“So there will be a
healthy margin, giving us a payback of about a year to 18 months.
“The capital cost of the
seafloor production system will be $407 million, including a $50 million
contingency.
“The government will
contribute 30% of that.”
Togolo said in phase two of the
project, Nautilus could then look at potentially constructing its own concentrator facility to enable it to capture more of the
value from the
project.
Nautilus now controls an area in PNG, Vanuatu, Fiji, Tonga,
New Zealand and the Solomon Islands of over 600,000 square kilometres, about the size of France, “which makes
Nautilus one of the largest landowners in the world”.
“Our exploration success
to date has identified 19 prospects in the Bismarck Sea and a further 16 prospects in Tonga,” Togolo said
“Already in 2012 Nautilus
has been out on the water in the Bismarck conducting further exploration
activities over our tenements in the Bismarck with a drilling campaign
scheduled for later in 2012.”
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