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Esterhazy is home to our flagship potash site and mines one of the best ore deposits in the world. Mosaic’s Esterhazy Complex is now the world’s largest potash operation, with a nameplate capacity of 7.8 million tonnes. The K1 and K2 sites have previously supplied potash to global customers for decades, and the new K3 mine was completed in 2022. All three are named after the element symbol for potassium, ‘K’.


Leadership Team

Located in the South East corner of Saskatchewan, approximately 1,200 people work below or above ground to deliver millions of tonnes of potash to our global customers. As one of our low-cost-producers, Esterhazy is a key potash asset for the company.

Our Food Story

Automation and technology is a driving force in Esterhazy.  Our talented workforce is looking to the future and finding ways to increase safety, efficiency and connection across our immense operating footprint-- building a ‘digital mine’ to power us into the future.

Esterhazy processes its potash into a variety of products including Ag White, Crystal, Granular and Standard MOP (muriate of potash) products.  Our performance product, Aspire® is also part of their portfolio.

Our Food Story

About Esterhazy K3

Our $3 billion-dollar Esterhazy K3 Project, which is Saskatchewan’s first new underground potash mine in over a half-century, was completed in 2022. With two headframes rising 375 feet above the land of living skies, to a shaft sinking 3,350 feet below – the new K3 mine signifies the future of potash for the area and our company.

Our Food Story

The project, which kicked off in 2009, has brought significant capital investment and contract work to the area as the first new underground shaft to be sunk in the Province. In 2011, shaft sinking began and continued into 2017 when the potash ore body was reached. Potash ore was hoisted for the first time from the North headframe in December 2018 and from the South headframe in October 2021.

Our Food Story

Esterhazy K3: Start-to-Finish

The K3 project signifies our commitment to the long-term sustainability of our operations, Esterhazy, the Province, and the vision we have for our future North America Business.

K3 Project News


Esterhazy K3: A Quick Look Back

April 14, 2022
After more than 12 years, close to 13 million workhours and billions of dollars in capital investment – Esterhazy K3 is nearly complete. Take a quick look back at how the
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Esterhazy K3: The Future is Here

Esterhazy K3: The Future is Here  

December 20, 2021
As of December 8, Esterhazy K3’s newly completed south shaft headframe is operating at full hoisting capacity. Production officially began November 8 following successful commissioning of the
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Readying K3’s South Shaft Headframe for Production

November 4, 2021
The future of Esterhazy is taking shape. Rich potash ore continues to be hoisted up K3’s completed north shaft at an average rate of more than 30,000 tons per day, and final work is underway to
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