A bucket wheel reclaimer collects ore at the BHP Billiton iron ore loading facility in Port Hedland, north of Perth, Australia in this May 26, 2008 file photo. Top global miner BHP Billiton slashed its interim dividend by 75 percent on February 23, 2016, abandoning a long-held policy of steady or higher payouts as it braces for a longer-than-expected commodities downturn. (Photo by Tim Wimborne/Reuters)
