A pair of 100-tonne tipper trucks operate at Atlas Iron's Wodgina mine, about 100 km (62 miles) south of Port Headland in Western Australia in this June 23, 2010 file photo. Australia ended a damaging dispute with global miners on July 2, 2010, by dumping its "super profits" tax for a lower resources rent tax regime backed by key global miners, freeing the way for an early election. Picture taken June 23, 2010. REUTERS/Tim Wimborne/Files (AUSTRALIA - Tags: ENERGY POLITICS BUSINESS)