ADA-ES Shares to Begin Trading on the NASDAQ Tomorrow, October 14th

Business Wire, Oct 13, 2004

LITTLETON, Colo. -- ADA-ES, Inc. today announced that its common stock, which has been trading on the OTC Bulletin Board since the Company spun-off from Earth Sciences, Inc. in September 2003, will begin trading on the NASDAQ Small Cap Market effective tomorrow, October 14, 2004. The ticker symbol for ADA-ES' common stock will remain 'ADES.'

Dr. Michael Durham, President of ADA-ES, stated, "Listing on the NASDAQ is a significant step for our Company. ADA-ES' stock is now eligible for purchase by a broader range of investment funds, and the NASDAQ listing will afford greater exposure. This milestone indicates our focus on increasing shareholder value while capitalizing on the opportunities in the mercury emission control industry. Also important - we believe the listing will enhance our credibility with utility customers."

The Company expects the move to the NASDAQ Small Cap Market to be seamless for ADA-ES shareholders. Shareholders that hold a stock certificate do not need to replace the certificate. At such time as shareholders might sell the shares represented on the certificate, the transfer agent will automatically recognize the shares as ADA-ES stock on the NASDAQ Small Cap Market.

About ADA-ES

Headquartered in Littleton, Colorado, ADA-ES, Inc. develops and implements proprietary environmental technology and specialty chemicals that mitigate the environmental impact from electric power and industrial companies while reducing operating costs.

This press release may contain forward-looking information within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. The United States Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for such forward-looking statements in this document that are based on information the Company believes reasonable, but such projections and statements involve significant 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 market demand for ADA-ES chemicals and systems and changes in technology, laws or regulations, demand for the company's securities, and other factors discussed in the company's filings with the U.S. Securities and Exchange Commission.