SUPERIOR, Ariz., Nov. 5, 2025 /PRNewswire/ -- Resolution Copper has reached a major milestone with the completion of its multi-year, $200 million rehabilitation and deepening of the historic No. 9 ...

SUPERIOR, Ariz., Oct. 6, 2025 /PRNewswire/ -- As Resolution Copper continues to invest in developing one of the most significant copper projects in the United States, Sturgeon Electric, based in Miami ...

April 19 (Reuters) - Mining giant Rio Tinto Plc has tried for more than a quarter century to launch Arizona's Resolution copper project, which would be one of the world's largest underground mines.

Multi-year agreement comes at a critical time when there is a record demand for food in the Copper Triangle, among Tribal Communities, and in the East Valley SUPERIOR, Ariz., Feb. 6, 2026 /PRNewswire/ ...

TUCSON, Ariz.— A new public opinion poll released today by the Center for Biological Diversity shows that 67% of likely Arizona voters oppose the proposed Resolution Copper mine, which would destroy ...