Disclosure of number of shares and total number of voting rights

Clermont-Ferrand, France, April 18, 2016 – CARBIOS (NYSE 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 Code de commerce (the French Commercial Code) and article 223-16 of the Règlement général de l’Autorité des Marchés Financiers (General Regulation of the French financial markets authority):

On March 31st, 2016:

• Total number of outstanding shares: 3,798,173
• Number of real voting rights (without treasury shares) : 5,358,854
• Total number of voting rights (including treasury shares) : 5,368,993