Number of shares and voting rights as of April 30, 2017

03 May 2017 18:00 CEST

MONTHLY DISCLOSURE OF THE TOTAL NUMBER OF SHARES AND VOTING RIGHTS IN THE SHARE CAPITAL

Clermont-Ferrand, France, May 3, 2017 (6:00 PM CEST) – CARBIOS (Alternext Paris: ALCRB), an innovative green chemistry company specializing in breakthrough technologies dedicated to the recovery of plastic waste and the production of bio-polymers, updates its number of shares and its total number of voting rights.

Pursuant to article L.233-8 II of the French Commercial Code and article 223-16 of the General Regulation of the Autorité des Marchés Financiers (French financial markets authority):

On April 30, 2017:

• Total number of outstanding shares: 3,859,787*
• Total number of exercisable voting rights (without treasury shares): 5,065,472
• Total number of theoretical voting rights (including treasury shares): 5,075,342

* including 10 000 new shares issued in April 2017, as part of the equity financing facility contracted with Kepler Cheuvreux on March 28, 2017 (see CARBIOS press release dated March 29, 2017).

About CARBIOS:

CARBIOS is a young, innovative green chemistry company, whose mission is to find biological solutions to the environmental and sustainable development issues faced by industrial businesses today. CARBIOS acquired the rights to research that was conducted over a number of years by various public and private sector laboratories. By leveraging the unique properties of biological catalysts (enzymes), it has used this research as the foundation for developing innovative industrial bioprocesses that optimize the technical, economic and environmental performance of polymers (thermoplastic materials and synthetic or food-based fibers). The company has focused its efforts on a strategic application sector: plastics. CARBIOS’ growth strategy is based on a clear business model of industrial value creation that targets attractive markets, develops innovative and competitive bioprocesses and licenses them to major industrial stakeholders for commercialization. CARBIOS benefits from the financial support of the leading European venture capital firm Truffle Capital. Founded in 2011, CARBIOS was granted the label “Young Innovative Company” by Bpifrance (former OSEO) and is eligible for investments by private equity mutual funds (FCPIs).

For more information, please visit: www.carbios.fr

CARBIOS is eligible for the PEA-PME, a government program allowing French residents investing in SMEs to benefit from income tax rebates.

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