1% to 3% impact through carbon tax = storm in tea cup.
As gold circles in on $2k an ounce by the end of the year the carbon tax issue completely irrelevant.
If anything gold exploration/production in Oz could be curtailed somewhat as a result of the carbon tax putting further pressure on the current supply/demand shortfall. NCM should be surging on the Wafi/golpu news - this dip will be bought...