Potash Corp - Cassidy Lake | mine

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Potash and salt were discovered in the Salt Springs area by the New Brunswick Department of Natural Resources in 1973. Subsequent exploration and development rights were granted to International Minerals & Chemical Corporation (Canada) Ltd. (IMC). IMC sold the property to Denison Mines Limited in 1978.

Denison proceeded with the mine and mill development phase of the project. In 1980, a 40% interest in the property was assigned to the Potash Company of Canada Limited (Potacan) and the operation became known as Denison-Potacan. Denison was to relinquish its interest in the property to its Potacan partners in 1991. The name of the facility was subsequently changed to the Potacan Mining Company (PMC).

With a rated annual production capacity of 1.3 million tonnes of KCl product, PMC was New Brunswick’s largest potash operation. Disaster struck in 1996, when an unmanageable water inflow penetrated the underground workings eventually forcing permanent closure of the mining operations. In March 1998, PMC’s assets were acquired by the Potash Corporation of Saskatchewan Inc. The facility was renamed Potash Corporation of Saskatchewan Inc. (Cassidy Lake Division).

Up until 2005, the mill and related infrastructure was used to upgrade standard KCl product from PCS operations in western Canada to a higher-value granular product. The division presently serves as a holding and disposal site for excess salt brine trucked daily from PCS