The initial phase of the selection process, which was coordinated by the Company’s financial advisor, Credit Suisse, involved introducing the AC project to a number of companies in and related to the power generation and coal sectors. The AC production facility, which would be the largest AC plant built to date, is being designed to maximize efficiency and produce the most cost-effective AC product for the mercury control market. ADA-ES is currently in the process of site selection for the first plant, with sites in North Dakota and Louisiana, the two leading contenders; ADA-ES has filed applications for permits to build an AC plant in both states. Commercial operation of the first plant is planned for the first quarter of 2010.

All of the strategic equity partner candidates are well-capitalized and have significant plant operational experience, contracting and transportation expertise, and demonstrated success at developing large projects. In the next phase of the process, ADA and Credit Suisse will narrow this group of interested candidates in order to begin negotiating final terms for a definitive participation agreement.

Dr. Michael Durham, President and CEO of ADA-ES, commented, “We are very pleased with the Bid Letters we received from these companies for this very exciting project. We see the level of interest as a validation of our aggressive, proactive plans for this new market and the progress we have made to-date on project development. With any one of these candidates, we should be able to access not only the resources to move forward on the first, approximately $300 million production line, but potentially all six production lines we are permitting, which we believe will be needed to meet the demand for AC should a stringent Federal mercury control regulation be passed.”

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