DuPont To Expand Nomex® Capacity

DuPont, Wilmington, Del., plans to
invest more than $100 million in a three-part global capacity expansion of DuPont™ Nomex®. The
company expects to roll out the expansion in phases before the end of 2006.

The expansion projects include: DuPont Chemical Solutions’ construction of a new facility in
Asturias, Spain, to produce isophthaloyl chloride, a key Nomex ingredient; and the addition of new
equipment at the existing Nomex plant in Asturias, which will boost manufacturing capacity by more
than 30 percent. DuPont, in conjunction with its joint venture DuPont Teijin Advanced Papers, also
plans to double Nomex paper production capacity in Japan.

The new Asturias plant also will enable additional ingredient production for DuPont Kevlar®
and follows several investments in that high-performance, high-strength fiber in recent years.

“As demonstrated by our Kevlar expansions and today’s Nomex announcement, we continue to
aggressively invest in our high-performance fibers business,” said William J. Harvey, vice
president and general manager, DuPont Advanced Fiber Systems.

November/December 2006