The Liberal government of the province introduced an emergency plan setting up quotas and a price floor in 1969.

[citation needed] In the early 1980s the company struggled and lost money for several years accumulating an $800 million debt.

By March 2008, due to rising potash prices it had become one of the most valuable companies in Canada by market capitalization, valued at almost C$63 billion.

[12][13] The bid was ultimately rejected by the federal government under the Investment Canada Act, as it did not provide a net benefit to the country.

The company cited Uralkali's decision to break apart its joint venture with Belaruskali, and the impending threat of lower potash prices that would result, as having hampered its profits.

[19] In January 2016 price depression in the potash market combined with underground structural issues caused the firm to close its Sussex NB Piccadilly mining operation.

[20] On September 12, 2016, PotashCorp announced that it had agreed to merge with the Calgary-based firm Agrium, pending government approval.

[4] As a result of completing the transaction, Agrium and PotashCorp were dissolved and the assets formed the new company Nutrien.

[citation needed] A group of community members in Penobsquis, where PotashCorp has existing and planned potash mines, has launched an action against the mine for damages relating to lost wells, subsidence, noise, light and dust pollution as well as anxiety.

[26] In 2011, a planned sulfur melting plant facility in Morehead City, North Carolina was withdrawn after public opposition.