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Biotest AG: Ad-hoc RELEASE; Announcement according to § 15 Sec. 1 Securities Trading Act (WpHG)

Biotest AG / Miscellaneous

Release of an Ad hoc announcement according to § 15 WpHG, transmitted by
DGAP - a company of EquityStory AG.
The issuer is solely responsible for the content of this announcement.
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Dreieich, August 12, 2009. The Company is in discussions to sell its
business division 'Medical Diagnostics', which essentially consists of the
Biotest Medical Diagnostics GmbH in Dreieich and the Biotest Diagnostics
Corporation in Rockaway/ USA. The discussions are getting more focussed
now. Exclusive negotiations to sell the business division will be conducted
with one particular party within the forthcoming weeks.

Biotest Aktiengesellschaft
The Executive Management Board

Biotest AG
Landsteinerstr. 5
D-63303 Dreieich
www.biotest.de


Disclaimer

This document contains forward-looking statements on overall economic
development as well as on the business, earnings, financial and assets
position of Biotest AG and its subsidiaries. These statements are based on
current plans, estimates, forecasts and expectations of the company and are
thus subject to risks and elements of uncertainty that could result in
significant deviation of actual developments from expected developments.
The forward-looking statements are only valid at the time of publication.
Biotest does not intend to update the forward-looking statements and
assumes no obligation to do so.

About Biotest

Biotest is a company that researches and manufactures pharmaceutical,
biotherapeutic and diagnostic products and has specialised in the areas of
application of immunology and haematology. In its Plasma Protein segment,
Biotest develops and markets immunoglobulins, coagulation factors and
albumins based on human blood plasma. These are used for diseases of the
immune and haematopoietic systems. In the Biotherapeutic segment, Biotest
researches into the clinical development of monoclonal antibodies,
including in the indications of rheumatoid arthritis and cancer of plasma
cells. The products of the Microbiological Monitoring segment are primarily
used in hygiene monitoring, while those of Medical Diagnostics are used,
for example, in blood transfusions and transplants. Biotest has more than
2,000 employees worldwide. The shares of Biotest AG are listed in the SDAX
on the Frankfurt stock exchange.


Securities' ID No., ISIN ordinary shares: 522720, DE0005227201
Securities' ID No., ISIN preference shares: 522723, DE0005227235
Listing: Prime Standard/Official traded
Frankfurt, Berlin, Düsseldorf, Hamburg, Stuttgart 
12.08.2009  Financial News transmitted by DGAP
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Language:     English
Issuer:       Biotest AG
              Landsteinerstraße 5
              63303 Dreieich
              Deutschland
Phone:        0 61 03 - 8 01-0
Fax:          0 61 03 - 8 01-150
E-mail:       investor_relations@biotest.de
Internet:     http://www.biotest.de
ISIN:         DE0005227235, DE0005227201
WKN:          522723, 522720
Indices:      SDAX
Listed:       Regulierter Markt in Frankfurt (Prime Standard); Freiverkehr
              in Berlin, Düsseldorf, Hamburg, Stuttgart
 
End of News                                     DGAP News-Service
 
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