Exhibit 99.1

Synthesis Energy Systems, Inc. Announces Financial Results for the

Second Quarter of Fiscal 2012

HOUSTON, February 10, 2012 — Synthesis Energy Systems, Inc. (Nasdaq: SYMX), a global energy and gasification technology company that provides products and solutions to the energy and chemicals industries, today announced financial and operating results for the second quarter of fiscal 2012, ended December 31, 2011.

“During the second quarter of 2012, we continued to execute our strategy to create value for our shareholders through technology licensing with related engineering services and equipment sales, equity partnerships and participation in low cost coal resources,” stated Robert Rigdon, President and CEO. “We continue to make good progress and our business development opportunities are robust and expanding.

Mr. Rigdon continued, “Since the beginning of our Zaozhuang (ZZ) Joint Venture operation three years ago, it has been remarkable in demonstrating the robustness, reliability and efficiency of our technology as well as our technical and operating capability. Due to the mutual desire of ourselves and our off-taker, Hai Hua, to improve financial results from the operation, we have set an objective for ZZ Joint Venture plant to achieve sustainable profitable operations in the near term. To this point we are choosing not to operate the ZZ Joint Venture plant while we are in commercial discussions with Hai Hua to achieve this goal. In December, we signed a Framework Agreement with Hai Hua that outlines the necessary steps and responsibilities of the parties to more effectively integrate the ZZ Joint Venture plant and Hai Hua’s methanol unit along with longer term plans for expanding the operation at the ZZ Joint Venture plant into production of other chemicals and energy products. We plan to resume operations at the ZZ Joint Venture plant once a definitive agreement has been reached and the integration work has been completed. We are holding our costs very low during this time. We remain confident in realizing results from our overall growth strategy as well as achieving profitable results from the ZZ Joint Venture plant and our newest China project, the Yima Joint Venture plant, which is expected to begin operating this summer.”

Second Quarter 2012 Financial Results (Unaudited)

Total revenue for the three months ended December 31, 2011, was $183,000 versus $2.9 million for the three months ended December 31, 2010.

Product sales from the Company’s ZZ Joint Venture plant were $19,000 for the three months ended December 31, 2011, compared to $2.6 million for the three months ended December 31, 2010. The Company continues to work with Hai Hua on alternatives to collect the unpaid the contractual capacity fees due of approximately $1.0 million per quarter including the recovery of these fees from the new commercial structure under development. The decrease in product sales for the second quarter of 2012 is attributable to the discontinuation of syngas production at the ZZ Joint Venture plant in September 2011.

Technology licensing and related services revenues for the three months ended December 31, 2011 were $164,000 versus $302,000 for the three months ended December 31, 2010. The licensing revenue for the second quarter of fiscal 2012 relates to the feasibility study that is underway with Ambre Energy of Australia for a planned coal-to-liquids project.

The operating loss for the second quarter of fiscal 2012 was $4.8 million versus an operating loss of $3.5 million for the second quarter of 2010. The increase in operating loss was primarily due to the decrease in the ZZ Joint Venture plant’s revenue offset, in part, by the related decrease in the cost of sales and plant operating expenses. On a sequential basis, the operating loss excluding non-cash charges was $3.9 million for the second quarter of fiscal 2012 compared to $3.7 million for the first quarter of fiscal 2012.

The net loss attributable to stockholders for the second quarter of fiscal 2012 was $5.0 million, or $0.10 per share, versus a net loss of $3.6 million, or $0.07 per share, for the prior year’s second quarter.

At December 31, 2011, the Company had cash and cash equivalents of $24.4 million and working capital of $18.7 million.

Corporate Highlights

2

Conference Call Information

Senior management will hold a conference call to review the Company’s financial results for the second quarter of 2012 and provide a corporate update this morning at 8:30 a.m. Eastern Time.

To access the live webcast, please log on to the Company’s Website at www.synthesisenergy.com. Alternatively, domestic callers may participate in the live telephone conference call by dialing (800) 860-2442 and international callers should dial (412) 858-4600. An archived version of the webcast will be available on the Company’s website through March 12, 2012. A telephone replay of the conference call will be available beginning approximately one hour after the completion of the call and will be available through March 12, 2012. Domestic callers can access the telephonic replay by dialing (877) 344-7529. International callers should dial (412) 317-0088. The PIN access code for the live call and the replay is 10009077#.

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^® fluidized bed gasification technology, which the Company licenses from the Gas Technology Institute. U-GAS^® gasifies coal cost effectively, without many of the harmful emissions normally associated with coal combustion plants. The primary advantages of U-GAS^® 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, visit www.synthesisenergy.com or call (713) 579-0600.

Forward Looking Statements

This press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical fact are forward-looking statements. Forward-looking statements are subject to certain risks, trends and uncertainties that could cause actual results to differ materially from those projected. Among those risks, trends and uncertainties are the early stage of development of SES, its estimate of the sufficiency of existing capital sources, its ability to successfully develop its licensing business, its ability to raise additional capital to fund cash requirements for future investments and operations, its ability to reduce operating costs, the limited history and viability of its technology, the effect of the current international financial crisis on its business, commodity prices and the availability and terms of financing opportunities, its results of operations in foreign countries and its ability to diversify, its ability to maintain production from its first plant in the ZZ joint venture, its ability to complete the expansion of the ZZ project, its ability to obtain the

3

necessary approvals and permits for its Yima project and other future projects, the estimated timetables for achieving mechanical completion and commencing commercial operations for the Yima project, its ability to negotiate the terms of the conversion of the Yima project from methanol to glycol, the sufficiency of internal controls and procedures and the ability of SES to grow its business as a result of the China Energy and Zuari transactions as well as its joint venture with Midas Resource Partners. Although SES believes that in making such forward-looking statements its expectations are based upon reasonable assumptions, such statements may be influenced by factors that could cause actual outcomes and results to be materially different from those projected. SES cannot assure you that the assumptions upon which these statements are based will prove to have been correct.

Important Notice

In connection with the proposed transaction, SES has filed a preliminary proxy statement, and intends to files a definitive proxy statement, with the SEC and intends to mail the definitive proxy statement to the stockholders of SES. SES and its directors and officers may be deemed to be participants in the solicitation of proxies from the stockholders of SES in connection with the transaction. Information about the transaction is set forth in the preliminary proxy statement filed, and will be set forth in the definitive proxy statement to be filed by SES with the SEC.

You may obtain the preliminary statement and, when available, the definitive proxy statement, for free by visiting EDGAR on the SEC website at www.sec.gov. Investors should read the definitive proxy statement carefully before making any voting or investment decision because that document will contain important information.

Contact:

- TABLES FOLLOW -

4

SYNTHESIS ENERGY SYSTEMS, INC.

(A Development Stage Enterprise)

Consolidated Statements of Operations

(In thousands, except per share amounts)

(Unaudited)

5

SYNTHESIS ENERGY SYSTEMS, INC.

(A Development Stage Enterprise)

Consolidated Balance Sheets

(In thousands)

(Unaudited)

6