X0306 4 2015-08-10 0 0001534287 BioAmber Inc. BIOA 0001225613 LAND RAYMOND J 325 POINT LOBOS DRIVE SATELLITE BEACH FL 32937 1 0 0 0 Common Stock 2015-08-10 4 P 0 1500 6.7107 A 1500 D The price reported represents the weighted average sale price of the shares acquired. The prices of the shares acquired in the reported transaction ranged from $6.67 to $6.74 per share. The Reporting Person hereby undertakes, upon request of the Staff of the U.S. Securities and Exchange Commission, the Issuer or a security holder of the Issuer, to provide full information regarding the number of shares purchased at each separate price. /s/ Jean-Francois Huc, attorney-in-fact for Raymond J. Land 2015-08-10