• by: Robb M. Stewart • From: The Wall Street Journal • January 05, 2013 12:00AM o • • A SHARP rise in iron-ore prices is girding Australia's mining sector.
The spot price for Australia's biggest export by value has soared to almost $150 a tonne, up more than 70 per cent in the past four months.
For miners that took a cautious line in 2012, higher prices and fatter margins make production more economical.
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