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About Us

The Resolution Copper project is a proposed underground mine 60 miles east of Phoenix, Arizona, near the town of Superior. The Arizona project is a joint venture owned by two global companies, Rio Tinto (55%) and BHP (45%).

The ore deposit lies nearly 7,000 feet below the earth’s surface. It represents one of the most significant untapped copper deposits today, with an estimated copper resource of 1.787 billion metric tonnes at an average grade of 1.5% copper.

We have strong community and regional support for the project, which has the potential to become one of the largest copper mines in America, add $1 billion a year to Arizona’s economy, and create thousands of local jobs in a region where mining has played an important role for more than a century.

The Resolution Copper mine is vital to securing America’s energy future and infrastructure needs with a domestic supply of copper and other critical minerals. The project is advancing through the federal permitting process. In April 2025, the U.S. Forest Service issued a 60-day notice of its intent to republish the Final Environmental Impact Statement (FEIS) and Draft Record of Decision (DROD), marking an important step forward. Public input remains a key component of the review process.

Resources

Our Work

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Resolution Copper and United Association Local 469 Enter into Master Supply Agreement Supporting Operations in Arizona

Resolution Copper has entered into a Master Supply Agreement with Johnson Controls Inc. and the United Association Local 469 (U.A. Local 469), establishing a framework for ongoing facility maintenance and operational support services at the project site.
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Opinion: Copper mine is a critical investment in Arizona

After over a decade, the path forward for Resolution Copper and the benefits it will bring are clear. The critics had their say — in federal permitting, in courtrooms, in Congress, and in the press — and lost at every turn. Now comes the important part for Superior, Arizona, our state’s economy, and our country’s future.
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How Environmental Stewardship is Shaping the Future of Responsible Mining

Learn how Resolution Copper is advancing environmental stewardship through land reclamation, responsible mine planning, and community partnership.
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Town of Superior Approves Historic Water Agreement with Resolution Copper

The Town of Superior Town Council has unanimously approved a landmark water agreement with Resolution Copper, securing a long-term, more than $20 million water mitigation commitment designed to protect and enhance the community’s water future.
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Resolution Copper’s Funding of Globe High School Robotics Lab Prepares Students for Competitive Careers

In the small town of Globe, Arizona, with a population of just over 7,000 people, big ideas for the future are brewing among high school students.
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Copper Strong: April Community Impact Across Arizona

Across Arizona, students explored future careers, volunteers served neighbors in need, families gathered at community events, and local partnerships continued creating real impact.
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Resolution Copper employee Bryan Seppala awarded 2026 AAED Member of the Year

The Arizona Association for Economic Development (AAED) honored Resolution Copper employee Bryan Seppala, AZED Pro, with the prestigious Member of the Year award.
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New Water Recycling System Reduces Annual Use by One Million Gallons

A new Potable Water Recycling System is now operating on site, reducing water use by an estimated one million gallons per year. The system captures clean analyzer water and returns it to the plant for reuse, replacing water that was previously discharged onto the ground.
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Reflecting on His Past, Bryan Mines a New Future

Bryan’s family is no stranger to mining. Born and raised in Globe, Bryan grew up watching his father and uncles work at the Magma Copper Mine. The industry was volatile at the time, and Bryan’s father was laid off three different times. Wanting a more stable path for his son, Bryan’s father encouraged him to do anything else for a living. Bryan followed that advice and decided to enroll at the University of Arizona, where he earned his Bachelor of Science degree in economic development.