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Wacker Chemie AG

WACKER builds new production facility for granular solar polysilicon in Burghausen

Munich / Burghausen (euro adhoc) -

- First commercial-scale production of granular polysilicon for the 
solar industry - New facility's nominal capacity set for 650 metric 
tons per year, with capex of approx. €40 million - New production 
technology enables processing advantages and boosts energy efficiency
  ots.CorporateNews transmitted by euro adhoc. The issuer is responsible for
  the content of this announcement.
capital investment
July 16, 2007 - WACKER intends to
build a new granular-polysilicon production facility for the solar 
industry at its Burghausen site in Germany. The Munich-based chemical
Group announced the decision today. With annual nominal capacity of 
650 metric tons, the new facility is expected to come on stream by 
the end of 2008. It will manufacture granular solar-grade polysilicon
from trichlorosilane using the so-called fluidized-bed technology. 
Granular polysilicon offers processing advantages to solar-wafer 
manufacturers that employ certain production techniques, thereby 
supplementing WACKER´s existing product portfolio for the 
photovoltaics industry. WACKER successfully tested its new method in 
pilot reactors over the past 2½ years and is now initiating 
first-ever commercial-scale production.
"With commercial manufacture of granular polysilicon from 
trichlorosilane, WACKER underscores its innovation and technology 
leadership in this sector," explained Ewald Schindlbeck, president of
WACKER POLYSILICON. "Tests by customers who manufacture solar wafers 
(the starting material for solar cells) via continuous 
crystallization show that processing granular polysilicon is far more
efficient than conventional techniques using polysilicon chunks. 
Moreover, the comparatively low energy consumption vis-à-vis 
conventional deposition positively impacts the energy balance of 
solar cells. Another advantage of our new method lies in the high 
yield provided by trichlorosilane as a feedstock."
For over 50 years, WACKER´s Burghausen site has been producing 
hyperpure polycrystalline silicon for the semiconductor industry. 
With rising solar-silicon demand, WACKER POLYSILICON has been 
expanding capacity step by step and, since 2000, increasingly 
supplying the photovoltaics industry. The division is currently the 
world´s second-largest polysilicon producer.
This press release contains forward-looking statements based on 
assumptions and estimates of WACKER´s Executive Board. Although we 
assume the expectations in these forward-looking statements are 
realistic, we cannot guarantee they will prove to be correct. The 
assumptions may harbor risks and uncertainties that may cause the 
actual figures to differ considerably from the forward-looking 
statements. Factors that may cause such discrepancies include, among 
other things, changes in the economic and business environment, 
variations in exchange and interest rates, the introduction of 
competing products, lack of acceptance for new products or services, 
and changes in corporate strategy. WACKER does not plan to update the
forward-looking statements, nor does it assume the obligation to do 
so.
end of announcement                               euro adhoc 16.07.2007 07:28:44

Further inquiry note:

Christof Bachmair
Media Relations & Information
Tel.: +49 (0)89 6279 1830
E-Mail: christof.bachmair@wacker.com

Branche: Chemicals
ISIN: DE000WCH8881
WKN: WCH888
Index: CDAX, Classic All Share, HDAX, MDAX, Midcap Market Index,
Prime All Share
Börsen: Börse Frankfurt / official dealing/prime standard

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