DuPont Microcircuit Materials Developments to Lead to New Lower-Silver Solamet® PV Offering / Breakthrough Metallization Technology Designed to Drive Costs Down for Solar Cell Manufacturers

RESEARCH TRIANGLE PARK, N.C. (ots) - DuPont Microcircuit Materials
(MCM) is accelerating the completion of a breakthrough technology
innovation that is enabling the company to develop formulations for a
new series of its leading DuPont(TM) Solamet® brand photovoltaic (PV)
metallization pastes that significantly reduce the silver content.
This development will help offset some of the impact that rising
silver prices have on the cost of producing solar cells and modules.

DuPont expects to commercialize the first generation of lower
silver Solamet® pastes later this year, and based on preliminary MCM
lab evaluations, the company anticipates that the first generation
products will have a reduced silver content of over 10 percent.
DuPont expects that ongoing research efforts will enable the
development of subsequent generations of the products with the silver
content reduced by as much as 20 percent compared to today's existing
products. The development is part of MCM's roadmap of proposed
technology options to enable the industry goal for conversion
efficiency of crystalline silicon (c-Si) solar cells beyond 20
percent by 2012, and to help lower the cost of PV generated energy.

"Lower costs are critical to the future of the PV industry, and
the escalating price of silver has become a key concern for our
customers,? said Peter Brenner, global marketing manager,
photovoltaics - DuPont Microcircuit Materials. "DuPont is working
aggressively to reduce our customers' reliance on silver as a basic
conductive material, to reduce cell and module costs today and enable
a more stable cost structure in the future. DuPont(TM) Solamet®
PV17A, launched at SNEC in February, already substantially reduces
the amount of paste needed to produce a solar cell, and we're
continuing to put our science to work by lowering the silver content
in the paste itself with this anticipated new product system. MCM has
a history of success in enabling cost reductions through new material
innovations without compromising performance. We are looking forward
to introducing this system to the market."

The lower-silver Solamet® photovoltaic metallization paste system
is comprised of new frontside silver and tabbing pastes, which DuPont
anticipates for many applications will be near drop-in replacements
for current products.

MCM began developing non-precious metal thick film compositions
for low cost applications in the early 1980's, and has continued to
successfully draw upon internal and external collaborative efforts to
leverage proprietary and patented technology using novel approaches
to reduce costs for conductive materials in a range of industries
such as the automotive, passive component, and plasma display panel
markets.

MCM has introduced several new Solamet® products this year and
continues to focus on accelerated product development programs that
help lower costs and raise efficiency, and capacity expansions to
support the fast growing PV industry.

DuPont MCM has over 40 years of experience in the development,
manufacture, sale, and support of specialized thick film compositions
for a wide variety of electronic applications in the photovoltaic,
display, automotive, biomedical, industrial, military, and
telecommunications markets. For more information on DuPont
Microcircuit Materials and Solamet® metallization pastes, please
visit http://mcm.dupont.com .

DuPont(TM) Solamet® photovoltaic metallizations are part of a
broad and growing portfolio of products represented by DuPont
Photovoltaic Solutions (DPVS), which connects science and technology
from across the company on a global scale to help support the
dramatic growth in the photovoltaic industry. To learn more, please
visit http://photovoltaics.dupont.com.

DuPont ( www.dupont.com ) is a science-based products and services
company. Founded in 1802, DuPont puts science to work by creating
sustainable solutions essential to a better, safer, healthier life
for people everywhere. Operating in more than 90 countries, DuPont
offers a wide range of innovative products and services for markets
including agriculture and food; building and construction;
communications; and transportation.

Forward-Looking Statements:

This news release contains forward-looking statements based on
management's current expectations, estimates and projections. All
statements that address expectations or projections about the future,
including statements about the company's strategy for growth, product
development, market position, expected expenditures and financial
results are forward-looking statements. Some of the forward-looking
statements may be identified by words like "expects," "anticipates,"
"plans," "intends," "projects," "indicates," and similar expressions.
These statements are not guarantees of future performance and involve
a number of risks, uncertainties and assumptions. Many factors,
including those discussed more fully elsewhere in this release and in
documents filed with the Securities and Exchange Commission by
DuPont, particularly its latest annual report on Form 10-K and
quarterly report on Form 10-Q, as well as others, could cause results
to differ materially from those stated. These factors include, but
are not limited to changes in the laws, regulations, policies and
economic conditions, including inflation, interest and foreign
currency exchange rates, of countries in which the company does
business; competitive pressures; successful integration of structural
changes, including restructuring plans, acquisitions, divestitures
and alliances; cost of raw materials, research and development of new
products, including regulatory approval and market acceptance;
seasonality of sales of agricultural products; and severe weather
events that cause business interruptions, including plant and power
outages, or disruptions in supplier and customer operations. The
company undertakes no duty to update any forward-looking statements
as a result of future developments or new information.

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Solamet® are registered trademarks or trademarks of DuPont or its
affiliates.

Presscontact:

Fiona Paul Pinter
Marketing Communications Manager
Photovoltaic Solutions, EMEA

Du Pont de Nemours International Sàrl
DuPont Photovoltaic Solutions
2, chemin du Pavillon - P.O. Box 50
CH-1218 Le Grand-Saconnex/Geneva

T: +41 (0)22 7175352
F: +41 (0)22 7176169
E: fiona.paul-pinter@che.dupont.com
www.photovoltaics.dupont.com