BHP is clearly over paying for OZL , the other copper stocks mentioned SFR , AIS , 29M are well down. As usual BHP has overpaid for all its acquisitions. BHP share price is not far from 2008 and 2011 prices so it's a crap manager of shareholder returns. I'm surprised BHP hasn't yet overpaid to get into Lithium. Watch this space as it makes a play for PLS at the next peak in lithium prices.