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Atlantis No Longer: Koolan Island Iron Mine Due to Restart
Mount Gibson Iron’s two-year reconstruction and dewatering effort is coming to a positive end, with sales due to recommence in the March quarter of 2019.
After almost four years underwater, the Koolan Island iron ore project in Western Australia is projected to recommence iron ore sales during the March quarter of 2019.
The island mine was flooded after a seawall collapse at the end of 2014 opened the pit to the Indian Ocean, halting all production and causing the immediate layoff of 300 workers.
In its financial year report, owner Mount Gibson Iron (ASX:MGX) said it expects iron ore sales from the mine to start during the March 2019 quarter after a two-year, AU$100-million reconstruction effort.
According to a 2017 feasibility study, the restart efforts were worth the trouble. It showed that the mine had a mineral reserve of 12.8 million tonnes grading 66 percent iron. But even better, in April this year that ore reserve was increased by 8 million tonnes, to 21 million tonnes grading 65.5 percent iron.
At the time the restart efforts were announced, CEO Jim Breyer said that Koolan Island was “a very high-grade operation, and very exciting for us.”
Speaking with local media, he said that the task of rebuilding the seawall and recommencing operations was “a lot of work, and nothing of value comes cheap as they say … but in this particular case, we have been able to keep the restart costs of the island mine under AU$100 million.”
As of Wednesday (August 15), the company is currently pumping seawater back out of the mine at a rate of 1,500 liters a second with the task set to be complete by the end of December.
“We are now dewatering at a rate equivalent to emptying an olympic-sized swimming pool every half hour,” said Breyer.
The seawall that collapsed has been replaced by a new one with a concrete seepage barrier installed in mid-July to hopefully prevent a repeat of 2014’s disaster.
The company is in a hurry to capitalize on demand for higher-grade iron, with Breyer saying that high-grade iron is attracting “a premium in excess of 33 percent relative to the 62 percent iron benchmark.”
Commencement of sales from Koolan will come along just in time for Mount Gibson, which in its yearly report said that its Mid-West operations, also in Western Australia, will wind down, with final shipments expected in the same quarter that Koolan kicks off.
On the Australian Securities Exchange, Mount Gibson was trading at AU$0.495 as of market close on Wednesday — a jump of 8.79 percent.
Image courtesy of Mount Gibson Iron.
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Securities Disclosure: I, Scott Tibballs, hold no direct investment interest in any company mentioned in this article.
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Scott has a Master's Degree in journalism from the University of Melbourne and reports on the resources industry for INN.
Scott has experience working in regional and small-town newsrooms in Australia. With a background in history and politics, he's interested in international politics and development and how the resources industry plays a role in the future.
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Scott has a Master's Degree in journalism from the University of Melbourne and reports on the resources industry for INN.
Scott has experience working in regional and small-town newsrooms in Australia. With a background in history and politics, he's interested in international politics and development and how the resources industry plays a role in the future.
Learn about our editorial policies.