DuPont and Genencor Create World-Leading Cellulosic Ethan...(. The joint venture expects toenable pro...)

The integration of the partners' individual technology platforms will combine:

-- A differentiated pretreatment process developed by DuPont through

its collaboration with the U.S. Department of Energy National

Renewable Energy Laboratory (NREL) that allows for reduced capital

costs;

-- Enzyme technologies and production platforms enabling high

biomass-to-sugars conversion rates developed by Genencor, a leader

with world-class capabilities in the discovery, optimization and

production of enzymes for cellulose conversion;

-- A proprietary ethanologen, also developed through the DuPont-NREL

collaboration, based on Zymomonas mobilis. This ethanologen has the

ability to convert sugars contained in the feedstock into high

yields of ethanol with fewer byproducts, and;

-- The companies' joint engineering capabilities in process integration

and facility design.

Since 2000, the U.S. Department of Energy has supported the efforts of DuPont and Genencor through multiple grants totaling more than $60 million for the development of pretreatment processes, advanced ethanol conversion organisms and improved enzymes.

DuPont and Genencor have a history of successful collaboration. In 1995 the companies partnered to develop the fermentation biocatalyst that produces Bio-PDO(TM) propanediol, one of the first commercial-scale industrial applications of metabolic engineering designed to make a 100 percent renewably sourced material from corn starch. Today, the product is manufactured by DuPont Tate & Lyle Bio Products, LLC in Loudon, Tennessee, U.S. DuPont and Genencor were recognized by the U.S. Environmental Protection Agency in 2003 with the Presidential Green Chemistry Challenge Award. Last year, leading scientists and engineers from DuPont,
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