Resolution Copper – Potential to be the largest copper mine in the US.

Resolution Copper is Arizona copper, mined by Americans

The Resolution Copper mine is vital to securing America’s energy future, national security, and infrastructure needs with a domestic supply of copper and other critical minerals.

416

Employees/Contractors

$4,900,000

2024 Donations

37%

Budget Spent Locally

Why Our Project Matters

Our Work

Resolution Copper invests $144 million to advance next phase of development

November 5, 2026

SUPERIOR, Arizona (November 5, 2026) – Resolution Copper will invest $144 million1 to advance the next phase of development at the project in Arizona, one of the world’s largest untapped copper deposits and a potential major new source of domestically produced copper for the United States.

Meet Christian, An Electrical Engineer Helping Keep People Safe Through Innovation

November 3, 2026

Today, as an Electrical Engineer at Resolution Copper, Christian works on the systems that help keep the site powered, connected, and safe. His job touches a little bit of everything: electrical infrastructure, circuit breakers, relays, automation systems, maintenance planning, design reviews, and field troubleshooting. He helps make sure the electrical systems can do what the site needs them to do and that the people working around those systems are protected.

Meet Resolution Copper’s Mine Rescue Team

October 30, 2026

Dozens of volunteers. Twelve days of training a year. All on top of their regular jobs. Most days, they're working underground, maintaining equipment, managing teams and projects, studying rock formations, welding, turning wrenches or handling any number of jobs that keep things running at Resolution Copper.

Q3 2026 Scorecard: A Look at the Work Behind the Numbers

October 28, 2026

From local jobs and project spending to water management and community partnerships, here's a look at what has been happening at Resolution Copper.

Meet the People Behind the Core

October 21, 2026

There are jobs where you work with spreadsheets. Jobs where you work with heavy equipment. And then there are jobs where working with rocks is literally part of the assignment. Welcome to the Core Processing Facility.

Resolution in the Community: September 2026

October 13, 2026

Resolution Copper participated in 77 community engagements during September, bringing our 2026 total engagements to 556. Behind those numbers are teachers finding new ways to engage students, volunteers helping neighbors, community partners thinking about the future of the Copper Corridor and opportunities to learn directly from Tribal communities.

Teamwork Powers 46 Level Upgrade

October 8, 2026

Deep underground at Resolution Copper, crews recently completed a major upgrade to the 46 Level pump station, modernizing a critical system that helps manage water in the mine's underground workings.

A Decade of Showing Up

October 6, 2026

Since 2016, Resolution Copper has invested more than $20 million through more than 900 partnerships supporting rural Arizona communities.Those partnerships span education, health and wellbeing, culture and heritage, environmental stewardship, business development, recreation and community economic development.

More Than a Game: How Baseball Became a Classroom

September 30, 2026

Since 2012, Resolution Copper and the Arizona Diamondbacks have worked together to create opportunities for Arizona youth, educators and communities. What started with Science of Baseball has grown into teacher workshops, hands-on STEM experiences, youth baseball clinics, Tribal youth programming and community recreation.