Castillo Copper Reports Findings From Three Australian Prospects

By Christian Moess Laursen

Castillo Copper said Wednesday that preliminary metallurgical test-work findings from the Fence Gossan, Reefs, and Tors Tanks prospects in New South Wales, Australia, show total rare earth element and yttrium grades ranging from 227 to 1.632 parts per million.

The Australia and Zambia-focused mining company said…