AIC Tenders DuPont Canada Shares – DuPont Reiterates Increased $21.75 Offer is Final and Offer Period Will Not be Further Extended

WILMINGTON, Del. , June 11, 2003 — DuPont today announced that AIC Limited has advised DuPont that it has tendered 10,685,336 common shares, representing approximately 16 percent of the minority interest, to DCI Acquisition Inc.'s increased offer of Cdn. $21.75 per common share for all the class A common shares, Series 1 of DuPont Canada, not owned by DuPont or its affiliates. AIC had not tendered to the initial Cdn. $21.00 offer.

"We are pleased that AIC, one of the two largest institutional shareholders in DuPont Canada, has expressed its support for our increased offer," said John P. Jessup, DuPont vice president and treasurer. "The success of this offer will be determined by whether we achieve our minimum 50.1 percent condition, AIC's decision to tender its shares puts us much closer to that minimum condition. Our (Cdn.) $21.75 offer is final, and the offer period, which expires Monday, June 16, will not be further extended."

On June 2, 2003, DuPont announced that it had increased the offer price to Cdn. $21.75 per share in cash and made a final extension of its offer to Monday, June 16, 2003, at 10 p.m. (Toronto time). A formal Notice of Extension and Variation of the DuPont offer was mailed to DuPont Canada's shareholders on June 3, 2003.

Shareholders with any questions or who need assistance may contact Innisfree M&A Incorporated, the information agent for the offer, at the following address and telephone numbers:

   Innisfree M&A Incorporated
   501 Madison Avenue, 20^th Floor
   New York, New York 10022

   Shareholders Call Toll Free:
   (888) 750-5835 (English)
   (877) 750-9499 (French)

Banks and Brokers Call Collect:
(212) 750-5833

DuPont Canada Inc. is a diversified science company that serves customers across Canada and in more than 40 other countries. Headquartered in Mississauga, Ontario, the company serves global markets through offices and/or operations in Canada, the United States, Mexico, France, the United Kingdom and India. The company has 4,000 employees. For more information about DuPont Canada, please visit the company's website at http://www.ca.dupont.com.

DuPont is a science company. Founded in 1802, DuPont puts science to work by solving problems and creating solutions that make people's lives better, safer and easier. Operating in more than 70 countries, the company offers a wide range of products and services to markets including agriculture, nutrition, electronics, communications, safety and protection, home and construction, transportation and apparel. Web site: http://www.dupont.com.

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6/11/03