STALLERGENES: Excellent 1st Half-Year 2010 Performance

Antony, France, August 27, 2010 (ots/PRNewswire) -

- First Half-Year 2010 RESULTS
- Excellent 1st Half-Year 2010 Performance by Stallergenes
- Growth in France and Internationally +13%
- Very Strong net Profit Growth +51%
- Free Cash Flow Growth +90%

The Board of Directors' approved the 2010 half-year financial
statements at its meeting of 25 August 2010, chaired by Albert
SAPORTA:

2010 half-year financial statements
In EURm H1 2009 09/08 H1 2010 10/09
%CA Var.% %CA Var.%
Sales 97.6 100.0 12 110.6 100.0 13
Cost of goods sold (22.5) (23.1) 13 (24.1) (21.8) 7
SG&A (37.8) (38.8) 8 (43.9) (39.7) 16
Profit before R&D 37.3 38.2 16 42.7 38.6 14
R&D costs (21.3) (21.8) 30 (16.6) (15.0) (22)
R&D revenues 3.6 3.7 35 3.5 3.2 (2)
EBIT 19.6 20.1 7 29.5 26.7 51
Net result, group 13.4 13.7 11 20.2 18.2 51
share
Pour EBITDA 24.1 24.7 12 35.6 32.2 48
Com. Capital expenditure 9.4 9.6 93 6.9 6.3 (26)
Free cash flow 14.5 14.9 45 27.6 24.9 90
Net cash 1.3 ns 25.0 ns
Fi Working capital 9.9 (16) 4.4 (55)
EPS, diluted 1.01EUR 11 1.50EUR 49

Sales growth and financial position

Sales grew by 13% in the first half-year. This significant
increase reflected the continuing advancement of sublingual
treatments, in particular buoyant Oralair(R) sales in Germany.

Under the combined effect of this growth and the temporary
reduction in R&D expenditure, a significant increase in earnings was
achieved in the 1st half-year 2010. Overall, the profit before R&D
rose moderately in relative value and represented 38.6% of sales,
compared to 38.2% in the 1st half-year 2009. R&D expenditure fell
very significantly by 22% in the first half-year and went from 21.8%
of sales in 2009 to 15.0% this year. This decline was due to a timing
difference between the end of the clinical studies in progress (and
particularly the Oralair(R) study in the US) and the start of new
studies. Operating profit rose by 51% to EUR 29.5 million. The net
diluted earnings per share grew by 49% to EUR 1.50.

EBITDA grew by 48% to EUR 35.6 million. Investments temporarily
fell by 26% over the half-year to EUR 6.9 million. As a result, and
also due to stable working capital requirements, free cash flow
recorded a significant 90% increase to EUR 27.6 million.

At 30 June, net cash resources grew from EUR 1.3 million in 2009
to EUR 25.0 million in 2010.

The half-year financial report can be downloaded from the
website: http://www.stallergenes.com

At its meeting of 25 August 2010, the Board of Directors
authorised the implementation of the share buyback programme approved
by the Annual General Meeting of 28 May 2010, which will not exceed
EUR 10 million and will more particularly be used to cover stock
options and performance-based share payments.

Significant recent transactions and events

The positive clinical results achieved over the first half-year,
in particular for Oralair(R) and Actair(R) lead us to consider our
international expansion with confidence. These results are
particularly encouraging in our drive to enter into strategic
partnerships.

Oralair(R), which is already marketed in Germany, will be
launched in the autumn in the Netherlands, the Czech Republic,
Slovakia and Austria. The market access process is ongoing in
Southern European countries. In France more specifically, talks have
been initiated with the "Commission de Transparence", which should
issue a public opinion by the end of the year.

R&D expenditure will recover in the second half-year but the 2010
total will not exceed the 2009 level in absolute value. Against this
background, and considering projected sales growth in excess of 10%,
the Group expects a significant increase in its full-year operating
margin.

The recovery in investment in the second half should only have a
marginal effect on the generation of free cash flow, which will be
significantly greater in the full year 2010 than in 2009.

The presentation of the 2010 half-year results and outlook for
the Group will take place on 27 August 2010 at 11.30 am (CET) at
Hotel Le Bristol, 112, rue du Faubourg Saint-Honore, 75008 Paris,
France. This meeting will be webcast and will be available both in
French and English on our website: http://finance.stallergenes.com
from 3 pm.

ABOUT STALLERGENES

Stallergenes is a European biopharmaceutical laboratory
specialising in treatments by immunotherapy for the prevention and
treatment of allergy-related respiratory conditions, such as rhino
conjunctivitis, rhinitis and allergic asthma. A pioneer and a leader
in immunotherapy treatments by sublingual administration,
Stallergenes dedicated more than 20% (gross) of its sales in 2009 to
its Research and Development activities, which are primarily directed
at developing a new therapeutic range enabling the provision of
immunotherapy treatments by sublingual tablets. Stallergenes achieved
2009 sales of EUR 193 million, with over 500,000 patients treated
with Stallergenes products.

For further information, please visit our website:
http://www.stallergenes.com

ots Originaltext: Stallergenes
Im Internet recherchierbar: http://www.presseportal.de

Contact:
CONTACT: Contacts: Albert Saporta, Chairman and CEO,
Tel.+33-1-55-59-20-04, Christian Thiry, Chief Financial Officer,
Tel.+33-1-55-59-20-95, e-mail: investorrelations@stallergenes.fr;
Investor and Analyst Relations: Lucile de Fraguier, Pavie Finance,
Tel.+33-1-42-15-04-39e-mail: contact@pavie-finance.com; Stallergenes
Press Relations, LiseLemonnier, Communication Officer, Tel. +
33-1-55-59-20-96, e-mail:llemonnier@stallergenes.fr