Who We Are

Twin Metals Minnesota (TMM) is a Minnesota mining company committed to developing and operating a safe, 21st century underground copper, nickel, platinum group metals and cobalt mining project in the Iron Range of northeast Minnesota. Safe for workers and environmentally friendly. TMM will demonstrate it will meet and when possible exceed environmental standards through a rigorous government-led regulatory review process.

TMM offers an extraordinary opportunity for long-term, environmentally sound economic growth and significant family-supporting job creation in northeastern Minnesota. The TMM project will also support the growing demand for responsibly sourced copper, nickel, platinum group metals and cobalt in a worldwide green economy.

Twin Metals Minnesota is a subsidiary of Antofagasta plc, one of the top 10 copper producers in the world. Twin Metals Minnesota maintains offices in Ely and St. Paul, Minnesota.

Our Leadership Team

Kelly Osborne
Chief Executive Officer
Julie Padilla
Chief Regulatory Officer
Derek Heinecke
Vice President, Admin and Finance
Dean DeBeltz
Director, Operations and Safety
Glenn Barr
Vice President, Engineering
Erik Carlson
Manager, Environment and Sustainability
Kathy Graul
Manager, Public Relations
Charlie Knilans
Senior Project Engineer
David Ulrich
Communications Consultant