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RESEARCH TRIANGLE PARK, N.C., November 11, 2005

DuPont-Toray Co., LTD Increases Capacity for DuPont™ Kapton® Polyimide Film

DuPont Electronic Technologies today announced plans to expand the production of DuPont™ Kapton® polyimide film with Du Pont–Toray Co., LTD, its joint venture with Toray Industries, Japan. Approximately $95 million will be invested in the new facility, which is expected to increase overall capacity for DuPont™ Kapton® by approximately 25 percent to serve the continued rapid growth of the flexible circuit industry. The facility for this fifth DuPont™ Kapton® polyimide film production line will be constructed next to the current Du Pont–Toray Co., LTD manufacturing plant in Tokai City, Aichi Prefecture, Japan. Production is expected to begin in mid-2007.

"We have a strong commitment to serve our customers and their rapidly growing use of DuPont™ Kapton® and Oasis® film offerings - this will be our third major expansion in the last three years," said J. Stan Erickson, global business director, DuPont Electronic Technologies, High Performance Materials. "DuPont™ Kapton® polyimide film has been a market leader for over 35 years because of its proven reliability under the most demanding conditions in applications from cell phones and personal computers, to the newest technologies in flat panel displays and integrated circuit packaging. We are pleased with this expansion, as DuPont-Toray Co., LTD will continue to develop both the quality and availability of Kapton® to benefit our customers."

DuPont™ Kapton® polyimide film is used primarily as a substrate for flexible printed circuits and integrated circuit applications in wireless, digital and computer markets. It has superior temperature endurance, physical, electrical, and chemical properties and has proven its success for over 35 years.

Toray-DuPont Co. LTD is a 50-50 joint venture between Toray Industries, Inc., Tokyo, and DuPont KK, Japan, a wholly owned subsidiary of DuPont, Wilmington, Del. The entity has produced DuPont™ Kapton® polyimide film for the Asia-Pacific flexible circuit industry since 1985.

DuPont Electronic Technologies is a leading supplier of electronic materials, including materials for the fabrication and packaging of semiconductors, materials for rigid and flexible circuits, and materials for advanced displays. For more information on DuPont™ Kapton® polyimide film, go to http://www.dupont.com/kapton/index.html.

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 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.