Mining Method

The most viable way to recover the ore body is by a well-established underground mining method called block caving. Block caving is safe, environmentally sound, and cost-effective for mining a large, deep orebody.

In block caving, a large section of ore is initially undercut by drilling and blasting, causing it to collapse under its weight. The blasted ore breaks apart and falls into a series of pre-constructed funnels and access tunnels to form ore extraction drawpoints. From the drawpoints, ore will pass through a series of handling systems to an initial crushing circuit underground before transferring to the above surface Concentrator Complex.

Concentrating

In the second step of the production process, we convert the ore from a low-grade material into a concentrate of high-grade copper inside the Concentrator Complex.

The technique all begins with a wet grinding process that turns the crushed ore into a slurry and transports it to flotation cells. When mixed with water, reagents, and air, the copper minerals produce a bubbly froth. The bubbles with copper are skimmed and filtered to produce copper concentrate.

The concentrate, which contains about 29-31% copper, will then be sent to customers for further processing.

Smelting and Refining

When the concentrate leaves our facility, it will complete the smelting and refining phases to separate the copper from other metals. The final result is a 99.999% pure copper cathode, which is an essential raw material for the processing industry. Copper originating from 7,000 ft below the surface will eventually find its way into electrical wiring, electronics, power generation and transmission, automotive applications, and antimicrobial medical products.

Our Work

Cookies, Copper & Curiosity: Sparking STEM Learning

At Resolution Copper, we believe education is one of the most powerful tools to support and strengthen our communities—and we’re all in. Our latest Reading and Discovery Educational Initiative brought that belief to life in classrooms across the Copper Triangle.

Resolution Copper Welcomes Inclusion in Federal Transparency Initiative

Resolution Copper welcomes the White House’s announcement designating the Resolution project as part of the Federal Permitting Improvement Steering Council’s list of critical mineral “transparency projects.”

USFS Issues 60-Day Notice of Final Environmental Impact Statement Republication for Resolution Copper Project

Today, the United States Forest Service issued a legally required 60-day notice of the agency’s intent to republish a Final Environmental Impact Statement (FEIS) for the Resolution Copper project.

Geologist’s Perspective – The Resolution Ore Body

When Adam Schwarz first arrived at Resolution Copper in 2005, he didn’t need much convincing. One look at the core samples coming out of the ground—shimmering with high-grade copper minerals—and he was hooked. “That was the moment,” Adam recalls. “I knew this was where I wanted to be.”

Resolution Copper Presenting Partner of the annual Phoenix Global Forum

Resolution Copper, a prominent mining company, has announced its commitment as a presenting partner of the 2025 Phoenix Global Forum. It joins the City of Phoenix for the second-annual event, scheduled for April 8-9 at the Phoenix Convention Center.

Celebrating the Women Shaping the Future of Mining

At Resolution Copper, we know that mining isn’t just about extracting minerals — it’s about the people who power our work every day. This International Women’s Day, we’re proud to celebrate the incredible women of Resolution Copper and the wider mining industry who are breaking barriers, driving innovation, and leading the way for future generations.

Big Hearts, Bigger Impact 2024 Volunteer Highlights

Every hour counts, and at Resolution Copper, our employees proved just how powerful volunteering can be. In 2024, 116 employee volunteers dedicated 1,358 hours to initiatives across the Copper Triangle. From career fairs to environmental restoration, their efforts left a mark on the community.

Building a Stronger Copper Corridor

At Resolution Copper, we know that the work we do goes far beyond mining. It's about the people, the land, and the communities we serve. No one embodies that better than Anthony Castaneda, Environmental Advisor and a native of the Globe-Miami area, whose mining roots run generations deep.

Anthony’s Mining Roots and Environmental Stewardship

At Resolution Copper, we know that the work we do goes far beyond mining. It's about the people, the land, and the communities we serve. No one embodies that better than Anthony Castaneda, Environmental Advisor and a native of the Globe-Miami area, whose mining roots run generations deep.