DuPont Corn and Soybean Leadership Advances with Canadian Approval of Optimum™ GAT™ Trait

Regulatory Milestones Achieved to Bring Higher Productivity to Growers

DES MOINES, Iowa, Sept. 1, 2009 – DuPont has received full Canadian regulatory approval of its proprietary herbicide tolerance trait, Optimum™ GAT™, in corn and soybeans for cultivation, feed, and food.

“The Optimum™ GAT™ trait combined with our industry-leading genetics and other complementary technologies will help growers maximize yields and allow noticeably cleaner fields through harvest,” said Paul E. Schickler, vice president and general manager – DuPont and president – Pioneer Hi-Bred. “The Canadian regulatory approval of the Optimum™ GAT™ trait in corn and soybeans brings Pioneer closer to offering more technologies to farmers’ fields.”

DuPont business Pioneer Hi-Bred has already received U.S. approval of the Optimum™ GAT™ trait in soybeans and anticipates U.S. approval of the Optimum™ GAT™ trait in corn in the coming months. DuPont is also pursuing regulatory approvals in key export markets around the world for both Optimum™ GAT™ soybeans and corn.

The first-ever agricultural trait developed through proprietary DuPont gene shuffling technology, the Optimum™ GAT™ trait will enable new herbicide options that will provide broader spectrum weed control without compromising crop safety.

Pioneer Hi-Bred, a DuPont business, is the world’s leading source of customized solutions for farmers, livestock producers, and grain and oilseed processors. With headquarters in Des Moines, Iowa, Pioneer provides access to advanced plant genetics in nearly 70 countries.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

Forward-Looking Statements: This news release contains forward-looking statements based on management’s current expectations, estimates and projections. The company does not undertake to update any forward-looking statements as a result of future developments or new information. All statements that address expectations or projections about the future, including statements about the company’s strategy for growth, product development, market position, expected expenditures and financial results are forward-looking statements. Some of the forward-looking statements may be identified by words like “expects,” “anticipates,” “plans,” “intends,” “projects,” “indicates,” and similar expressions. These statements are not guarantees of future performance and involve a number of risks, uncertainties and assumptions. Many factors, including those discussed more fully elsewhere in this release and in DuPont’s filings with the Securities and Exchange Commission, particularly its latest annual report on Form 10-K, as well as others, could cause results to differ materially from those stated. These factors include, but are not limited to changes in the laws, regulations, policies and economic conditions of countries in which the company does business; competitive pressures; successful integration of structural changes, including acquisitions, divestitures and alliances; research and development of new products, including regulatory approval and market acceptance, and seasonality of sales of agricultural products.

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9/1/09

Contact:
Doyle Karr
515-270-3428