Antofagasta and Atalaya Mining lead gains as copper hits new high

Mining stocks powered higher on Wednesday morning, led by Atalaya Mining Copper (LSE:ATYM) and Antofagasta PLC (LSE:ANTO), as copper prices climbed almost 2% to new record highs.  Precious metals miners Hochschild Mining PLC (LSE:HOC), Fresnillo PLC (LSE:FRES) and Endeavour Mining PLC (LSE:EDV were also among the top risers, despite little moves from gold and silver prices on the day.