Photovoltaic Market Growth Helps Drive Expansion

DuPont Fluoroproducts today announced plans to significantly expand its capacity to produce DuPont™ Tedlar^® polyvinyl fluoride (PVF) film by 2007, in order to meet strong and growing market demand in photovoltaic, aerospace, construction, graphics and other market segments.

Critical to photovoltaic module performance, DuPont™ Tedlar® PVF film is used as a long-lasting protective packaging material that provides weatherability, mechanical strength and reliable long life to solar cell components. DuPont Fluoroproducts expects market growth to exceed 30 percent each of the next few years, due to a surge in photovoltaic module production and installations around the globe. The business has already significantly increased and optimized its capacity over the last year at its Louisville, Ky., and Buffalo, N.Y. Plans are underway for at least one new U.S. manufacturing line, and additional manufacturing operations are being considered overseas.

"DuPont ™ Tedlar® PVF has played a leading role in the development of the photovoltaic industry since its inception," said Hilde Roekens, global segment leader -- DuPont Fluoroproducts. "We will continue to support the growth of the market by adding capacity for Tedlar®, and will continue to lead by putting our science and technology expertise to work to improve the lifecycle of photovoltaic modules and reduce the cost per watt of photovoltaic electricity."

DuPont is a leading global supplier of films, resins for encapsulants, encapsulant films and conductive inks for photovoltaics. Further information can be found at photovoltaics.dupont.com.

DuPont is a science 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, nutrition, electronics, communications, safety and protection, home and construction, transportation and apparel.

Forward-Looking Statements: This news release contains forward-looking statements based on management’s current expectations, estimates and projections. 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 documents filed with the Securities and Exchange Commission by DuPont, particularly its latest annual report on Form 10-K and quarterly report on Form 10-Q, 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, including inflation, interest and foreign currency exchange rates, of countries in which the company does business; competitive pressures; successful integration of structural changes, including restructuring plans, acquisitions, divestitures and alliances; cost of raw materials, research and development of new products, including regulatory approval and market acceptance; and seasonality of sales of agricultural products.

10/4/05