Synthesis Energy Systems, Inc. announced that Charles Costenbader, who joined the company as Chief Financial Officer in September 2013, will now focus on SES operations as Chief Operating Officer. Roger L. Ondreko, who joined SES in May 2014 as Chief Accounting Officer and Corporate Secretary, will be given additional financial responsibilities serving as Chief Financial Officer and Corporate Secretary. Both Messrs.

Costenbader and Ondreko report to Mr. Rigdon.