Bezons, France, January 16th, 2011 ; 8.00 am

MONTHLY DECLARATION OF THE TOTAL NUMBER OF SHARES AND VOTING RIGHTS COMPRISING THE SHARE CAPITAL

Prepared pursuant to Article 223-16 of the general regulation of the Autorité des Marchés Financiers

DateTotal number of shares comprising the share capitalTotal number of voting rights
Gross total of voting rights:
19.320.931
December 31st, 201119.320.931Net total of voting rights*:
18.933.081

* Net total: total number of voting rights attached to the total number of shares net of shares with no voting rights (treasury shares, etc.)

About RIBER:
Riber designs and produces molecular beam epitaxy (MBE) systems as well as evaporation sources and cells for the semiconductor industry. This high-technology equipment is essential for the manufacturing of compound semiconductor materials and new materials that are used in numerous consumer applications, such as new information technologies, OLED flat screens and new generation solar cells.
Riber is listed on Euronext Paris Compartment "C" and is part of the CAC IT index.
ISIN: FR0000075954 Reuters code: RIBE.PA Bloomberg code: RIB: FP
Riber has been innovation certified by OSEO, the dedicated French innovation agency, enabling it to qualify for French innovation mutual funds (FCPI).

Your contacts:

RIBER
Olivier Handschumacher
tel: +33 1 39 96 65 00
invest@riber.com
CALYPTUS 
Cyril Combe
tel: +33 1 53 65 68 68
cyril.combe@calyptus.net

www.riber.com

Nber of shares and voting right as 12312011:
http://hugin.info/143567/R/1577667/492019.pdf



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Source: RIBER via Thomson Reuters ONE

HUG#1577667