Bioamber Commissions World's First Renewable Succinic Acid Plant

POMACLE, France, January 20 - Bioamber (www.bio-amber.com/) , a joint venture between US-based
DNP (www.dnpgreen.com/) Green Technology and France-based ARD
(www.a-r-d.fr/)(Agro-industrie Recherches et Développements),
announces the successful start-up and commissioning of the world's first
bio-based succinic acid plant. Since December 2009, the plant has been
producing renewable succinic acid from wheat derived glucose.

Built on time and on budget, this industrial scale plant has
an initial annual capacity of 2,000 metric tons. Bioamber's renewable
succinic acid offers higher purity than petroleum derived succinic acid, with
the added benefit of consuming CO2 gas in the production process, giving it a
distinct advantage over the traditional petrochemical route.

Bioamber will begin selling bio-based succinic acid
immediately to a variety of customers and will build market demand as it
negotiates the sale of licenses for large scale succinic acid plants.

"Since 2007, we have sampled over 50 companies in a number of
applications including plastics, polyurethanes, polyesters, plasticizers,
solvents and de-icers," said Patrick Piot, General Manager of Bioamber. "This
production plant is a major milestone in our development. Renewable succinic
acid is no longer an R&D program; it is a commercial reality for the chemical
industry."

About ARD

ARD (Agro-Industrie Recherches et Développements) is the R&D
centre of a large agro-industrial consortium based in Champagne-Ardenne,
France. Member of the global-scale competitiveness cluster IAR (Industries
and Agro-Resources), ARD adds value to and finds new outlets for agricultural
crops. It develops innovative and competitive bio-based molecules produced in
bio-refineries. Along with its affiliate SOLIANCE, specialized in the
production and commercialization of cosmetics active ingredients, ARD has 25
years of experience in biomass fractionation, bio-based chemistry, and
industrial biotechnology. ARD and its affiliates employ over 130 people.

For more information, please visit www.a-r-d.fr

About DNP Green Technology

DNP Green Technology is a private company that produces
renewable chemicals. Through numerous scientific and business partnerships,
DNP Green Technology has built an extensive IP portfolio and know-how
covering the production, purification and uses of succinic acid and its
derivatives. DNP Green Technology has established a joint venture, known as
Bioamber, to scale up and commercialize its succinic acid technology. DNP
Green is actively developing other bio-based chemical platforms, leveraging
industrial biotechnology and chemical synthesis to produce renewable
chemicals and bio-based materials. The company has offices in Princeton, N.J.
and Montreal, Canada.

For more information, please visit www.dnpgreen.com

About Bioamber

Bioamber is a white biotechnology company dedicated to the
development and commercialization of bio-based succinic acid. Bioamber's
mission is to license turn-key technology packages to companies seeking to
produce succinic acid and its derivatives from renewable feedstocks. Bioamber
is a joint venture between DNP Green Technology and Agro-Industrie Recherches
et Développements.

For more information, please visit www.bio-amber.com

For more information, please contact:

    Patrick PIOT, General Manager
    BIOAMBER S.A.S
    Route de Bazancourt
    F - 51110 POMACLE

For more information, please contact: Patrick PIOT, BIOAMBER S.A.S, Route de Bazancourt, F - 51110 POMACLE, Tel: +33-3-26-05-42-74