The Hottest Property in Gold Mining Is Copper

ADELAIDE, Australia—Gold miners not too long ago celebrated the valuable steel fetching its highest worth ever. They are reinvesting a lot of that windfall in copper.

From central Mexico to the Australian Outback, gold producers led by Newmont and Barrick Gold are elevating bets on copper by offers and different investments that may give them extra affect over a commodity important to the worldwide power transition. Copper is important for constructing electrical autos, wind generators and solar-power techniques.