Synthesis Energy Systems to Participate in the Brean Murray, Carret & Co. 2011 Global Resources & Infrastructure Conference

HOUSTON and LONDON, May 31, 2011 -

Synthesis Energy Systems, Inc. (Nasdaq: SYMX) ("SES"), a global energy
and gasification technology company that provides products and solutions to
the energy and chemicals industries, announced today that Robert W. Rigdon,
President and CEO of SES, will participate in the Brean Murray, Carret & Co.
2011 Global Resources & Infrastructure Conference. The conference will take
place at the Andaz Hotel in London, UK, on Monday, June 6, 2011.

About Synthesis Energy Systems, Inc.

SES provides technology, equipment and engineering services for the
conversion of low rank, low cost coal and biomass feedstocks into energy and
chemical products. Its strategy is to create value through providing
technology and equipment in regions where low rank coals and biomass
feedstocks can be profitably converted into high value products through its
proprietary U-GAS(R) fluidized bed gasification technology, which SES
licenses from the Gas Technology Institute. U-GAS(R) gasifies coal cost
effectively, without many of the harmful emissions normally associated with
coal combustion plants. The primary advantages of U-GAS(R) relative to other
gasification technologies are (a) greater fuel flexibility provided by the
ability of SES to use all ranks of coal (including low rank, high ash and
high moisture coals, which are significantly cheaper than higher grade
coals), many coal waste products and biomass feed stocks; and (b) the ability
of SES to operate efficiently on a smaller scale, which enables the
construction of plants more quickly, at a lower capital cost, and, in many
cases, in closer proximity to coal sources. SES currently has offices in
Houston, Texas, and Shanghai, China. For more information on SES, please
visit www.synthesisenergy.com or call +1-(713)-579-0600.

Kevin Kelly, Chief Accounting Officer of Synthesis Energy Systems, Inc., +1-713-579-0600, Kevin.Kelly at synthesisenergy.com; or Matthew D. Haines, Managing Director of MBS Value Partners, LLC, +1-212-710-9686, Matt.Haines at mbsvalue.com