SASKATOON,SASKATCHEWAN. - October 1, 2008 "“ Potash Corporation of Saskatchewan Inc. (PotashCorp) has been selected to be part of the Dow Jones Sustainability North America Index. The company is the first North American fertilizer manufacturer to be named to the index.

Dow Jones Indexes, sustainability investment specialist Sustainable Asset Management (SAM) and index provider Stoxx Ltd. named 18 new companies to the North America Index and deleted nine companies. This year, the North America Index is made up of 125 companies.

"PotashCorp is honored to be listed on the Dow Jones Sustainability North America Index," PotashCorp President and CEO Bill Doyle said in response to the news. "The economic, environmental and social targets we set for our company reflect our strategies for long-term growth and sustainability. We are pleased to be recognized for our efforts."

The Dow Jones Sustainability Indexes (DJSI) are one of the most prestigious measures of publicly traded companies' sustainability performance. The annual review of companies is based on "analysis of corporate economic, environmental and social performance, assessing issues such as corporate governance, risk management, branding, climate change mitigation, supply chain standards and labor practices," according to the DJSI.

"We appreciate this recognition from Dow Jones, but first and foremost our responsibility is to our many stakeholders," Doyle said. "We want to best serve our employees, our customers, our investors and everyone else who has a stake in our company, and ensure PotashCorp has a positive, long-term impact in the communities where we do business.

PotashCorp has been recognized in several ways for its sustainability efforts this year including: a listing on the Jantzi Social Index, the Goldman Sachs GS Sustain - Basic Materials list, the Governance Gavel Award by the Canadian Coalition for Good Governance, and recognition through a Barron’s investors survey as one of the most respected companies in the world.

For more information on our commitment to sustainability, visit www.potashcorp.com/sustainability.

Potash Corporation of Saskatchewan Inc. is the world's largest fertilizer enterprise producing the three primary plant nutrients and a leading supplier to three distinct market categories: agriculture, with the largest capacity in the world in potash, second largest in nitrogen and third largest in phosphate; animal nutrition, with the world's largest capacity in phosphate feed ingredients; and industrial chemicals, as the largest global producer of industrial nitrogen products and the world's largest capacity for production of purified industrial phosphoric acid.

PotashCorp

PotashCorp

PotashCorp is the world's largest fertilizer enterprise producing the three primary plant nutrients and a leading supplier to three distinct market categories: agriculture, with the largest capacity in the world in potash, third largest in phosphate and fourth largest in nitrogen; animal nutrition, with the world's largest capacity in phosphate feed ingredients; and industrial chemicals, as the largest global producer of industrial nitrogen products and one of only three North American suppliers of industrial phosphates.

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