DuPont Reports First Quarter Earnings Growth of Over ...(Three Months Ended March 31 ...)

2008 2007

Income before income taxes and

minority interests $1,470 $1,312

Add: Significant Items - charge - 52

Net exchange losses 155 28

Income before income taxes, Significant

Items, exchange gains/losses and

minority interests $1,625 $1,392

Provision for income taxes $273 $365

Add: Tax benefit on Significant Items - -

Tax benefit on exchange gains/losses 141 10

Provision for income taxes, excluding taxes

on Significant Items and exchange

gains/losses $414 $375

Effective income tax rate 18.6% 27.8%

Significant Items effect 0.0% (1.0)%

Tax rate before significant items 18.6% 26.8%

Exchange gains/losses effect 6.9% 0.1%

Base income tax rate 25.5% 26.9%