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The Doe Run Company released its 17th annual sustainability report, highlighting how the company balances its social, economic and environmental responsibilities while delivering a sustainable supply of critical minerals for today and future generations.
The report comes as the importance of domestic mineral production continues to grow. The U.S. Geological Survey’s final 2025 Critical Minerals List includes the three minerals Doe Run currently produces from its southeast Missouri mining operations: lead, zinc and copper. The list identifies 60 minerals considered vital to the U.S. economy and national security that face potential supply-chain risks.
“Our responsibility is to get the most value possible from the minerals in our care while protecting our employees, our communities and the environment,” said Matthew Wohl, president and CEO of Doe Run.
“The work covered in this report shows how innovation can help us do both. By improving how we recover and process minerals, we can reduce waste, improve efficiency, and potentially extend the life of our Missouri operations. Minerals are finite, and there is no better message for sustainability than making the most of them.”
A central focus of the report is Doe Run’s proprietary ACL HydroMet Process, designed to recover multiple minerals from mined material and recycled materials using a wet-chemical process that operates cleaner than a traditional furnace-based smelter, with lower air emissions and a smaller carbon footprint. The process can also recover valuable resources from what is currently considered waste, strengthening U.S. supply while supporting environmental cleanup.
Doe Run’s pilot work has shown it can recover critical minerals including cobalt, copper, germanium, nickel, zinc, lead, antimony, and tin. The technology is designed to process lower-grade bulk concentrates, reducing the need for sorting and separating underground, meaning less time and lower cost to bring material to the surface. By lowering costs and recovering more value from the same ore bodies, Doe Run can extend the life of its mines and sustain the jobs of the people who work them.
“Critical mineral supply is a national issue, but the solution can start in places like southeast Missouri,” added Wohl. “Our goal is to use technology to recover more of what is already in our mines and recycling streams, keep more of that value in the United States, and create a stronger, more resilient domestic supply of the minerals on which our economy depends.”
Since 2009, Doe Run has produced an annual sustainability report following Global Reporting Initiative (GRI) guidelines. The full 2025 Sustainability Report can be viewed here.
Source: The Doe Run Company
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