Wilmington, Delaware and St. Louis, Missouri
April 15, 2003

DuPont and its subsidiary, Pioneer Hi-Bred International Inc., (NYSE: DD) and Monsanto Company (NYSE: MON) announced today they have agreed to a worldwide licensing agreement to Monsanto’s recently approved YieldGard Rootworm insect-protected corn technology.

"This licensing agreement allows us to provide our customers with additional new corn technology in Pioneer brand hybrids,” said Rick McConnell, Pioneer president.

"This furthers our commitment to broadly license our biotechnology traits so that growers have access to the traits they want in the seed brands of their choice for use on their farms,” said Hugh Grant, chief operating officer of Monsanto.

The agreement creates new and growing sources of business for both companies, with Pioneer receiving a royalty-bearing license to Monsanto’s YieldGard Rootworm corn technology. Monsanto will receive royalties and certain other payments from DuPont. Additional details of the agreement were not disclosed.

YieldGard Rootworm corn technology recently received registration from the U.S. Environmental Protection Agency, allowing for the commercialization this planting season of the first biotech corn to control the corn rootworm pest.

Monsanto Company is a leading provider of technology-based solutions and agricultural products that improve farm productivity.

Pioneer Hi-Bred International, Inc., a subsidiary of DuPont, is the world’s leading source of customized solutions for farmers, livestock producers and grain and oilseed processors. With headquarters in Des Moines, Iowa, Pioneer provides access to advanced plant genetics, crop protection solutions and quality crop systems to customers in nearly 70 countries. DuPont is a 200-year-old science company offering innovative products, technologies and services that improve the lives of people everywhere. Headquartered in Wilmington, Del., DuPont delivers science-based solutions to markets including agriculture, nutrition, electronics, communications, safety and protection, home and construction, transportation, apparel, home and textiles.

YieldGard is a registered trademark of Monsanto Technology LLC.