McEwen is currently contemplating an expansion to the Fox Complex.

MMG has been hunting for copper assets for more than a year, amid a surge in demand for the metal needed in green energy transition.

Once complete, Coeur's landholdings outside the gold stream-encumbered areas will increase by nearly 20%.

Torex said it will invest somewhere between $390 million and $440 million in Media Luna in 2023.

In the first five years of operations, the new project will produce 455,000 oz. of gold annually.

The news about the Caribou mine came in the form of a news release from Canadian Copper, which is advancing the early-stage Murray Brook West property nearby.