WILMINGTON, Del., May 18, 2007 – DuPont today announced that the U.S. Environmental Protection Agency (EPA) has approved experimental use permits (EUP) for both DuPont™
Altacor™ and DuPont™ Coragen™ insecticides for use on 10 fruit and vegetable crops in 16 states, including California, Florida and Texas.

Both products are based on Rynaxypyr™, a new crop protection chemistry from DuPont with high efficacy in controlling target pests at low use rates.

“This is a significant step for DuPont and our customers because the Experimental Use Permit gives us the opportunity to generate use and performance data in commercial agricultural
programs and takes us a step closer to launching these products next year,” said James C. Collins, Jr. , vice president and general manager – DuPont Crop Protection . “We look
forward to providing customers new technology that offers reliable and consistent pest control combined with a very favorable environmental profile, consistent with our objective of delivering
innovations that advance sustainable agricultural production.”

The trials will provide DuPont the opportunity to evaluate these products in large scale tests and will permit cooperators an opportunity to experience the benefits of these products. Under the
EUP, growers will be able to harvest their crops treated with these products.

The EUP for DuPont™ Altacor™ will enable registered cooperators to apply the product to apples and pears for protection against damaging pests including codling moth, oriental fruit
moth and obliquebanded leafroller. The EUP for DuPont™ Coragen™ will include trials on celery, cucumbers, lettuce, peppers, spinach, squash, tomato and watermelon crops to control a
wide spectrum of worm pests and leafminer.

Research studies confirm that both Altacor™ and Coragen™ have demonstrated exceptional and long-lasting control of a wide spectrum of pests. Both products are highly potent on
target species at low use rates, delivering excellent crop protection as a result of rapid feeding inhibition. Altacor™ and Coragen™ contain Rynaxypyr™, a new active
ingredient from DuPont. Rynaxypyr™ offers a novel mode of action and is proven to have minimal impact on beneficial insects and extraordinarily low toxicity to mammals, birds and fish,
making the products an excellent fit for integrated pest management programs.

In January, DuPont submitted registration applications for Altacor™ and Coragen™ to regulatory authorities in the United States, European Union, Australia and Canada. These
authorities are piloting a Work Share project under the auspices of the Organization for Economic Cooperation and Development (OECD) aimed at an accelerated review and approval timeline and
regulatory harmonization.

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.

www.dupont.com