One dead in Mosaic potash mine incident at Sask. facility near Esterhazy

The Mosaic Company has confirmed that an employee died Monday at its K3 potash facility near Esterhazy.

In response to an inquiry, the company directed the Regina Leader-Post to a prepared statement posted to its website.

“The Mosaic Company is deeply saddened to report that early this morning on Monday, December 15, 2025, a fall of ground incident occurred at the K3 underground mine in Esterhazy, Saskatchewan, resulting in a fatal injury to one employee,” the statement reads.

Fall of ground is typically defined as a collapse of rock, earth or other material in an underground mine.

The statement adds that no further injuries were reported.

The company states its “Emergency Response Team” was “activated” following the incident.

“The site has now been secured and all mining activity has been temporarily halted. A full investigation is underway and Mosaic is working closely with all regulatory authorities,” the statement reads.

It adds that support services are being provided through “the company’s Employee and Family Assistance Program.”

The unattributed statement offers condolences and asks “that the family be given privacy at this difficult time.”

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