Steve McCabe’s Nuton journey now inspires his Tribe’s next generation

Steve McCabe has a packed schedule. As a Senior Deployment Advisor at Nuton, a Rio Tinto venture, his job is to help bring the company’s groundbreaking heap leaching technology to life.


“It’s a lot of coordination,” Steve said, putting it simply.

From working with vendors and leading teams to building mobile labs, and analyzing materials, there’s no shortage of moving pieces ahead of Nuton’s first large-scale deployment at Johnson Camp Mine in Arizona.

Lately, Steve’s main focus has been on agglomeration, a critical step in Nuton’s process. In this phase, fine ore particles are bound together using a blend of additives and solutions, improving permeability and ensuring uniform leaching. This step is essential before the material is placed on heap leach pads, where the bio heap leaching process efficiently extracts copper.

Steve’s passion for his work is evident in his deep knowledge and expertise when discussing his daily responsibilities. He is acutely aware of his journey — from an engineer to a metallurgist to a deployment advisor —and he remains grateful for every step. As the first person in his family to attend college, he understands the significance of higher education.

“There are a lot of challenges that tribal students face,” said Steve, a member of the San Carlos Apache Tribe. For many students in his community, college may not seem likely—or even possible.  The reasons are multiple and complex. Some students may not know how to take the next step after high school, while others may feel overwhelmed and unsure of what to do if college is in their plans.

But having a role model—someone who’s been there—can change everything. Before joining Nuton, Steve dedicated years to his Tribe’s education department, assisting students navigate the college process. He continues to mentor high schoolers today, guiding them toward opportunities they might not have realized were within reach.

Steve understands their situation well. When Steve first stepped onto Arizona State University’s campus, he intended to become a nurse. However, after exploring different degree programs, he discovered a passion for chemical engineering. That decision changed his life.

Steve’s education has had a ripple effect—not just for him, but for his entire family. Two of his three children attended Stanford University, and the other recently enrolled at Yale. He doesn’t share this to boast, but to illustrate what’s possible.

“Many Tribal students underestimate themselves,” he explains. “They don’t see their potential. But with the right guidance, they can break through those mental barriers and start seeing what’s out there for them”.

Just like Nuton is working to change the future of copper mining, Steve is working to change the future for students in his community.