Wilmington, Del. – July 31, 2008 – DuPont Engineering Polymers announces the following price increases in the Americas effective Sept.1, 2008, or as contracts permit. This price increase is in addition to previously announced increases.

• DuPont™ Zytel® nylon and DuPont™ Minlon® mineral reinforced nylon will increase $0.29/lb.
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• DuPont™ Zytel® HTN high performance polyamides will increase $0.15/lb.
• DuPont™ Delrin® acetal will increase $0.15/lb.
• DuPont™ Crastin® PBT, DuPont™ Rynite® PET and DuPont™ Hytrel® TPC-ET will increase $0.12/lb.
• Specialty polymers and DuPont™ Zenite® LCP increases will be higher.

“These price increases are essential to maintain long-term sustainability,” said Keith J. Smith, vice president and general manager – DuPont Engineering Polymers. “The relentless and cumulative nature of feedstock, energy and transportation cost increases has in effect cancelled out the cost-savings benefits derived from our aggressive cost reduction and efficiency programs. In addition, net price increases resulting from previous announcements have not adequately covered our growing cost burden. The net effect of these forces demands that we fully and promptly implement this additional price increase.”

About DuPont
DuPont Engineering Polymers manufactures and sells Zytel® nylon and Zytel® HTN PPA, Crastin® PBT, Rynite® PET, Delrin® acetal, Hytrel® TPC-ET, DuPont™ ETPV engineering thermoplastic vulcanizates, Minlon® mineral reinforced nylon, Thermx® PCT, Tynex® filaments, Vespel® parts and shapes, Zenite® LCP, to global aerospace, appliance, automotive, consumer, electrical, electronic, industrial, sporting goods and other diversified industries.

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.