bm-t and DEWB acquire majority shareholding in Zenteris

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merger, acquisition and takeover

Erfurt/Jena (euro adhoc) - bm-t beteiligungsmanagement thüringen gmbh
(bm-t), Erfurt and Deutsche Effecten- und
Wechsel-Beteiligungsgesellschaft AG (DEWB), Jena took a joint stake
in Zenteris GmbH (Zenteris) at the end of July 2007. In an initial
round of financing, DEWB, which is listed on the Prime-Standard at
the German Stock Exchange, took an indirect stake of approx. 39
percent in the Jena-based company. bm-t acquired approx. 31 percent
of the shares. The parties agreed not to disclose details on the
volume of the transaction.

Zenteris develops highly specialised technology solutions for
identifying biohazardous materials via the optical analysis of
samples on a biochip platform. The Approve-B system developed by
Zenteris provides for easy and fast handling when screening for
various pathogens such as anthrax and plague in a one-step analysis
and so can be used for numerous applications in the field of safety
and security technology. Against the background of a global increase
in the terrorism risk and the use of biotoxins and germ warfare
agents, increasing importance is being attached to the Zenteris
technology which is not dependent upon costly laboratory diagnostics.

"The results from research and development to date as well as the
expertise and sector-related experience of the company´s management
in the areas of opto-electronics and biotechnology have impressed
bm-t," says Dr. Guido Bohnenkamp giving the reason for bm-t´s
commitment to Zenteris. The huge global market potential of this
technology was another factor.

For DEWB this investment holding represents a further step in its
strategy of focused investment. "In future we will be extensively
gearing our investments towards the areas of optics, optical-related
technologies and sensor systems. With its optical analysis systems,
Zenteris fits in excellent with our target portfolio," says Falk
Nuber, Member of the Management Board of DEWB. He is convinced of the
growth potential provided by Zenteris. "The technology and market
potential of Zenteris offer us the opportunity to participate to a
significant extent in the future development of the company with a
manageable investment," continues Nuber.

Dr. Claudia Gluch, Managing Director of Zenteris GmbH, emphasises:
"Our technologies are also suitable for giving a scientifically sound
and precise picture of the composition of biological substances to
users who have no deep and detailed technical knowledge of molecular
biology. As a result in particular of the increasing safety and
security requirements in both the public and private sector, the use
of Zenteris products can provide the crucial advantage in the
identification and elimination of potential hazard sources. Our
technology possesses great potential in a global growth market."

About bm-t The Erfurt-based company bm-t beteiligungsmanagement
thüringen gmbh - a subsidiary of the Thüringer Aufbaubank - is the
management company for four investment funds in which the Free State
of Thuringia is the main shareholder: TI - Thüringer
Innovationsfonds, VCT - Venture Capital Thüringen GmbH & Co. KG, TIB
- Thüringer Industriebeteiligungs GmbH & Co. KG and PET - Private
Equity Thüringen GmbH & Co. KG. bm-t currently manages more than 40
investments in companies in Thuringia, with a fund volume under
management totalling approx. 165 million euros.

About DEWB Deutsche Effecten- und Wechsel-Beteiligungsgesellschaft AG
(DEWB AG, Prime Standard, Securities No.: 804100 / ISIN:
DE0008041005) is an investment company that specialises in young and
established medium-sized companies. The focus of our investments is
on strong growth companies from the areas of optics, optical-related
technologies and sensor systems for which we provide support through
shareholders´ equity, expertise in corporate development and our
sector network. Our regional focus lies in the German speaking
countries (D, A, CH). Since 1997 we have invested more than 300
million Euros in 52 companies and realized more than 400 million
Euros through 32 exits, eight of which were in the form of IPOs. The
company is located in Jena, one of the most successful technology and
science regions in Germany, with a long tradition in the field of
optical technologies and one of the most important European centres
for Photonics.

About Zenteris Zenteris GmbH is a developer and manufacturer of
biophotonic equipment used in the identification of biohazardous
substances. As entire solutions, Zenteris products integrate the
various links in the identification process chain and offer extremely
simple handling with a minimum analysis time. With its Approve-B
system platform Zenteris currently has the most advanced technology
at its disposal for the immunological or nucleic acid-based
identification of various pathogens in a one-step analysis. Zenteris
GmbH is a spin-off from JENOPTIK Laser, Optik, Systeme GmbH which in
future will hold 24.9 percent of the shares.

end of announcement euro adhoc 08.08.2007 10:47:00
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ots Originaltext: Deutsche Effecten- und Wechsel-Beteiligungsges. AG (DEWB)
Im Internet recherchierbar: http://www.presseportal.de

Further inquiry note:
Dr. Guido Bohnenkamp
bm-t gmbh
Phone: +49 (0) 361 7447 610
Fax: +49 (0) 361 7447 635
E-Mail: info@bm-t.com
www.bm-t.com

Mirko Wäckerle
DEWB AG
Phone: +49 (0) 3641 573 3600
Fax: +49 (0) 3641 573 3610
E-Mail: ir@dewb-vc.com
www.dewb-vc.com

Dr. Claudia Gluch
Zenteris GmbH
Phone: +49 (0) 3641 653606
Fax: +49 (0) 3641 652165
E-Mail: info@zenteris.de
www.zenteris.de

Branche: Financial & Business Services
ISIN: DE0008041005
WKN: 804100
Index: CDAX, Classic All Share, Prime All Share
Börsen: Börse Frankfurt / official dealing/prime standard
Börse Berlin / free trade
Börse Stuttgart / free trade
Börse München / free trade