Mining Production
Copper Costs Turn Negative for Southern, Vale as Gold and Silver Byproducts Soar
For copper miners Southern Copper Corp. and Vale SA, surging prices of byproducts like gold and silver are creating an unusual situation: The cost of producing the red metal has turned negative.
Tickers: SILV
For copper miners Southern Copper Corp. and Vale SA, surging prices of byproducts like gold and silver are creating an unusual situation: The cost of producing the red metal has turned negative.