exv99wxaywx19y

Exhibit (a)(19)

Launching in early October, the 2010 Overview of PotashCorp and Its Markets offers a snapshot of the factors that influence our performance. Illustrated with more than 100 full-color graphs available both online and in print, the Overview reveals how we manage our business — and why.

Here’s a preview:

What Makes PotashCorp unique and valuable?
PotashCorp has built the world’s largest fertilizer enterprise by capacity on unparalleled potash resources and strategic investments in offshore potash related companies, as well as world-class phosphate and nitrogen assets.

Although potash is the namesake and focal point of our business, we have competitive strengths and strategies in all three of our business segments that maximize the value of our assets.

Potash
We are the world’s largest producer, with 20 percent¹ of global capacity and unmatched growth potential. By 2015, we expect to have 23 percent of global capacity at our Canadian operations.

With extensive reserves and infrastructure in Saskatchewan and New Brunswick, we can add brownfield capacity more quickly and at a lower cost than greenfield projects.

We also benefit from investments in global potash producers, which add financial value to our company and give us important exposure to key offshore markets.

We focus on potash because of its key advantages compared to other fertilizer nutrient businesses:

•		High-quality, economically viable deposits are rare and concentrated by region, so there are few producers.
•		High capital costs and long lead times (7-10 years) highlight the economic risks associated with a “greenfield bet”
•		Since only 20 percent of the industry is government-owned (in Belarus and China), business decisions tend to be driven by economics, not politics.

Phosphate
We are the third largest producer of phosphate products, with world-class assets in Aurora, NC and White Springs, FL.

Our competitive advantage begins with our access to lower-cost, high-quality rock in Aurora, where we have a permit to operate for more than 30 years. This enables us to produce the most diversified product line in the industry and get the optimum benefit from our phosphoric acid.

Nitrogen
We are the third largest global nitrogen producer by ammonia capacity with the largest low-cost offshore ammonia base in the Western Hemisphere.

Access to economical natural gas and proximity to market are critical to success in the nitrogen business. About 60 percent of our ammonia is produced in Trinidad, where we have long-term, lower-cost natural gas contracts and a close proximity to the US, the world’s largest nitrogen importing market. This positions PotashCorp as a key lower-cost supplier to the North American market.

¹ Based on nameplate capacity

This document contains forward-looking statements or forward-looking information (forward-looking statements). These statements are based on certain factors and assumptions including foreign exchange rates, expected growth, results of operations, performance, business prospects, evaluations and opportunities and effective income tax rates. While the company considers these factors and assumptions to be reasonable based on information currently available, they may prove to be incorrect. Several factors could cause actual results to differ materially from those expressed in the forward-looking statements, including, but not limited to: future actions taken by BHP Billiton in connection with its unsolicited offer; fluctuations in supply and demand in fertilizer, sulfur, transportation and petrochemical markets; changes in competitive pressures, including pricing pressures; the recent global financial crisis and conditions and changes in credit markets; the results of sales contract negotiations with China and India; timing and amount of capital expenditures; risks associated with natural gas and other hedging activities; changes in capital markets and corresponding effects on the company’s investments; changes in currency and exchange rates; unexpected geological or environmental conditions, including water inflow; strikes and other forms of work stoppage or slowdowns; changes in and the effects of, government policy and regulations; and earnings, exchange rates and the decisions of taxing authorities, all of which could affect our effective tax rates. Additional risks and uncertainties can be found in our Form 10-K for the fiscal year ended December 31, 2009 under captions “Forward-Looking Statements” and “Item 1A — Risk Factors” and in our other filings with the US Securities and Exchange Commission and Canadian provincial securities commissions. Forward-looking statements are given only as at the date of this release and the company disclaims any obligation to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

Important Information

This document is neither an offer to purchase nor the solicitation of an offer to sell any securities. On August 23, 2010, PotashCorp filed a solicitation/recommendation statement on Schedule 14D-9 with the Securities and Exchange Commission (the “SEC”) with respect to the offer to purchase commenced by BHP Billiton Development 2 (Canada) Limited, a wholly-owned subsidiary of BHP Billiton Plc. Investors and security holders of PotashCorp are urged to read the solicitation/recommendation statement and any other relevant documents filed with the SEC, which contain important information.

Investors and security holders may obtain a free copy of the solicitation/recommendation statement and other documents that PotashCorp files with the SEC through the website maintained by the SEC at www.sec.gov and through the website maintained by PotashCorp at www.potashcorp.com. In addition, the solicitation/recommendation statement and other documents filed by PotashCorp with the SEC may be obtained from PotashCorp free of charge by directing a request to Potash Corporation of Saskatchewan Inc., 122 — 1st Avenue South, Suite 500, Saskatoon, Saskatchewan, Canada S7K 7G3, (306) 933-8500.