Welcome to Michigan potash & salt company

Protecting a Critical Mineral for Future Generations

Michigan will be the nation’s leading source for a critical agricultural resource. Potash is an essential plant nutrient and critical ingredient for a successful agricultural industry. Currently, domestic supplies are running out and the US is 96% import reliant. There is no known substitute for natural potash, and the World’s highest grade potash ore resides in the United States corn belt within MPSC’s leasehold.

US Potash Project

Project

Developing the largest U.S. based potash fertilizer and food-grade salt co-production facility. Improving U.S. food security through domestic production of critical potash minerals for which the U.S. is 96% import reliant.

Potash & Salt

Products

High-grade potash for farm-direct fertilizer application and industrial KOH manufacturing. Food-grade salt for consumption, water softening, industrial, and road de-icing applications.

Global Food Supply

Sustainability

Helping American farmers grow healthy crops and steward water use through efficient manufacturing and closed-loop water recycling. Harnessing geothermal energy to create low-carbon potash and salt products. Creating sustainable economic growth for Evart and Osceola Counties, Michigan.

A Green Metal

Potassium

Potassium (from potash) is a critical enabling mineral for the energy transition: long duration battery technology, certain Direct Air Capture processes to reduce CO2; and powered primarily with non-carbon and Geothermal Energy sources.

Sustainable Economic Growth for Evart and Osceola County

Good for the Farmer, Good for the Community

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Agri-Business
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Evart-Fire-Dept Training
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MPSC

Shovel-Ready Potash Project

Largest U.S. potash reserve, 150-year lifespan

The project will extract potash and salt 8,000 feet below the surface in a water-cycling process, utilizing the earth’s natural geothermal energy. Potash will go toward fertilizer and industrial industries while reducing reliance on imports. Food-grade salt will go to serve the food, water, pool, softening, and deicing markets.

800 k

tons annual production

97 %

purity
  • Total Jobs: Construction 1,400; Ongoing operations 200
  • Long term economic growth while providing a communal need
  • Sustainable and environmentally smart with low impact on natural resources

MPSC geothermal potash extraction is a commercially proven technology, carrying clean energy efficiencies over competing potash sources

Geothermal Energy Savings

Geothermal Heat & Recycled Water

Geothermal energy reduces heating energy requirements by over 50% vs. standard, non-geothermal applications

Reduces Carbon Dioxide

Potassium is an enabling mineral

Potassium is an established battery mineral that supports new and emergent battery technologies and large scale grid storage. Potassium is also the catalyst that enables CO2 direct air capture, an emergent technology that removes CO2 directly from the atmosphere.

“It’s our responsibility to develop this resource wisely and in a way that moves Michigan forward.  Potash is critical for food security, and is a natural and critical crop nutrient.”

Recent announcements

Company News

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April 18 2025
Company News, In the Media

Trump Administration Advances First Wave of Critical Mineral Production Projects

Today, the Federal Permitting Improvement Steering Council (Permitting Council) announced increased transparency, accountability, and predictability for the permitting review process for the first wave of critical mineral production projects—with many more projects on the way—in response to President Trump’s Executive Order, Immediate Measures to Increase American Mineral Production.

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