LITTLETON, Colo., March 3, 2008 (PRIME NEWSWIRE) -- ADA-ES, Inc. (Nasdaq:ADES) today announced that it will issue its financial results for the fourth quarter and fiscal year ended December 31, 2007 on Wednesday, March 12, 2008 before the stock market opens.

Dr. Michael Durham, President & CEO, and Mark McKinnies, CFO, will conduct a conference call focusing on the financial results and recent developments at 11:00 a.m. EDT on Wednesday, March 12, 2008. Interested parties may participate in the call by dialing 888-787-0460. Please call in 10 minutes before the call is scheduled to begin, and ask for the ADES call (conference ID # 37293005).

The conference call will also be webcast live via the Investor Information section of ADA-ES' website at www.adaes.com. To listen to the live call please go the website at least 15 minutes early to register, download and install any necessary audio software. If you are unable to listen live, the conference call will be archived on the website.

About ADA-ES

Headquartered in Littleton, CO, ADA-ES is a leader in clean coal technology and the associated specialty chemicals. The Company develops and implements proprietary environmental technology and specialty chemicals that enable coal-fueled power plants to enhance existing air pollution control equipment, maximize capacity and improve operating efficiencies. Through its largest and fastest-growing segment, Mercury Emission Control, ADA-ES supplies activated carbon injection systems, mercury measurement instrumentation, and related services. Additionally, the Company is implementing plans to produce and supply activated carbon for reducing mercury emissions from coal-fired boilers.

This press release and the conference call referenced in this press release may contain forward-looking information within the meaning of Section 21E of the Securities Exchange Act of 1934, which provides a "safe harbor" for such statements in certain circumstances. These statements are or will be based on current expectations, estimates, forecasts, projections, beliefs and assumptions of our management. Actual results may vary materially from such expectations. These statements will be prefaced by words or phrases such as "believe," "will," "hope," "expect," "anticipate," "intend" and "plan," the negative expressions of such words, or words of similar meaning, and these statements will include, but will not necessarily limited to, statements or expectations regarding future revenues or other financial measures, anticipated projects and new contracts, our plans to build a new activated carbon (AC) production facility, expected costs of construction and timing of commercial operation of the plant, as well as the expected market for the AC to be produced by the plant, our plans to secure interim supplies, treatment and storage facilities for AC to supply customer needs pending the completion of this new facility, to qualify our "clean coal" technology for Section 45 tax credits, to develop CO2 capture technology, anticipated growth in the markets we serve and hope to serve in the future, and related matters, including our position in those markets. Such statements involve significant risks and uncertainties. Actual events or results could differ materially from those discussed in the forward-looking statements as a result of various factors, including but not limited to, changing economic conditions and market demand for ADA-ES' products and services, changes in technology, availability of and demand for alternative energy sources, failure to satisfy performance guarantees, availability of adequate supplies of treatable carbon to meet interim AC demand, availability of appropriate facilities to store and treat such AC, the availability of federal funding to support certain of our research and development work, the availability of funding for procurement of the facilities necessary to store and treat carbon for interim AC supply needs, funding needed for the construction of the new AC plant on reasonable terms, our ability to secure necessary permits and other regulatory approvals, our ability to negotiate and enter into ancillary agreements needed to allow us to finance, design and build the new AC plant, access to necessary raw materials, anticipated or unexpected changes in laws or regulations, results of demonstrations of ADA's and other's licensed technologies, operational difficulties, availability of skilled personnel, and other factors, which we discuss in greater detail in our filings with the U.S. Securities and Exchange Commission (SEC). You are cautioned not to place undue reliance on the forward-looking statements made in this release, and to consult filings we make with the SEC for additional discussion concerning risks and uncertainties that may apply to our business and the ownership of our securities. The forward-looking statements contained in this press release are presented as of the date hereof, and we disclaim any duty to update such statements unless required by law to do so.

ADA-ES, Inc.
Investor Relations Counsel
Michael D. Durham, Ph.D., MBA, President & CEO
Mark H. McKinnies, CFO
(303) 734-1727
www.adaes.com

The Equity Group Inc.
Investor Relations Counsel
Melissa Dixon
(212) 836-9613

www.theequitygroup.com