An Arizona land auction for a Canadian mining company's Copper World project faces opposition from residents and Pima County.

Fear sells. But seeing a headline about a copper shortage should excite investors, not scare them. Particularly, investors who have a long-term outlook for basic materials stocks, including mining ...

The Pima County Board of Supervisors voted unanimously Tuesday to oppose mining at Rosemont Ranch in the Santa Rita Mountains. The decision doesn't stop the mine. Canadian-based Augusta Resource Corp.

It will also be used to advance the adjacent Southwest Open Pit copper project The transaction was completed in Q2 of 2025 Kinterra expects Pumpkin Hollow to restart copper production within 24 months ...

The Canadian company’s mine in Arizona would produce copper and molybdenum concentrate. Developers of an ambitious open-pit copper mine in Arizona have now enlisted former Interior Secretary David ...

Copper Flat mine aims to resume operations in 2029, a move that could yield 628 million pounds of copper over 18 years ...