Synthesis Energy Systems, Inc. has appointed Charles Costenbader as chief financial officer. He reports to Robert Rigdon, president and CEO. Mr. Costenbader has 25 years of experience in energy-related finance.

In his most recent position with Tangent Energy Solutions, Inc., he was responsible for project financing activities regarding power generation projects and hedging structures for environmental credits and power. Previously, Mr. Costenbader was with Macquarie Bank Limited in the power and natural gas commodities division in Houston from 2007 to 2011 and 2004 to 2006.