DuPont Transfers Centek Interest To INVISTA

Wilmington, Del.-based DuPont has finalized the transfer of its interest in Grupo Centek, a
Mexico-based joint venture for the manufacture and marketing of nylon and spandex fibers and
intermediates, to Fibers Mexico Holdings S de RL de CV, a subsidiary of Amsterdam-based INVISTA BV.

“The transfer of shares of Centek represents our commitment to the textile and apparel
business in North America, which is one of the key markets for Invista,” said Bill Ghitis,
president of Wilmington-based Invista Apparel.

September 2005