In 2014 , M&M completed the Caval Ridge coal mine in Queensland .
In 2014 , M&M began operations at Escondida 's OLAP copper cathode project , which consisted of a new dynamic leaching pad and a mineral handling system .
In 2014 , M&M completed the Caval Ridge coal mine in Queensland , and began operations at Escondida 's OLAP copper cathode project , which consisted of a new dynamic leaching pad and a mineral handling system .