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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

From Geology Roots to Modern Mining: Ginger’s Journey

For Ginger, mining isn’t just a career. It is a way to honor her father’s passion for geology and the Arizona landscape he loved. More than 30 years ago, her dad, a hydrogeologist, moved the family to Arizona drawn to the region’s geology, water systems, and the potential beneath the surface. He passed away 20 years ago, but his curiosity stayed with her. “Working at the Resolution Copper project would have been a dream job for him,” she says. “Every time I go underground, I think of him. It feels like I’m walking the path he never got to take.”

Building Stronger Communities Together: December 2025

At Resolution Copper, our mission is to responsibly develop one of the world’s largest copper resources while creating lasting benefits for the communities around us. That means investing in education, supporting local economies, and partnering on initiatives that improve quality of life. Community engagement is not an add-on to our work. It is central to who we are and how we operate.

Volunteering: Making Every Hour Count

126 employees. 1,650 hours. One community. That’s what impact looks like in the Copper Triangle. This year, our team showed up for food banks, flood cleanups, classrooms, and local events. They gave time, care, and heart. And it mattered.

2025 Year-End Review: Progress, Partnership, and Purpose

As 2025 comes to a close, Resolution Copper reflects on a year defined by progress, collaboration, and a shared commitment to doing things the right way. From major operational milestones underground to meaningful investments in local communities, this year marked another important step forward in responsibly advancing one of the most significant copper projects in the United States.

Breaking Ground for WMAT Youth Courts

On November 14, we joined the White Mountain Apache Tribe to celebrate the start of a project that came straight from community voices. WMAT leaders asked for more spaces where kids could safely play outside. We listened. Together we built a plan to rehabilitate three basketball courts. One in East Fork and two in Cibecue.

2025 Supplier Awards: The Partners Behind Every Shift

Once a year, we bring those stories into one room. Our Supplier Award Lunch is where we say thank you. Since 2019, this event has celebrated suppliers and community partners who live our values of care, courage, and curiosity. In 2025, we recognized six partners who quietly make a big difference for our teams, our project, and the Copper Triangle.

Resolution Copper Donates $10,000 to Support Superior Families This Holiday Season

As families across Arizona prepare for the Thanksgiving and Christmas holidays, Resolution Copper is proud to support the Superior Food Bank with an additional $10,000 gift to help keep shelves stocked and ensure Superior residents have access to essential food and supplies during this time of year.

Building Community Through Sports

In November, Resolution Copper partnered with the Arizona Diamondbacks Baseball Academy to host a free baseball clinic in Whiteriver. Held at Alchesay High School, the event brought together more than 65 young athletes from the White Mountain Apache Little League. Players ages 6–14 spent the day learning from official D-backs coaches through drills, skills stations, and on-field instruction.

From Service to Mining: Honoring Our Veterans

This Veterans Day, we honor the brave individuals who’ve served in the U.S. Armed Forces. At Resolution Copper, we’re proud to work alongside veterans whose leadership, discipline, and teamwork continue to strengthen our project and community.