ADA-ES To Present At Howard Weil Energy Conference

Littleton, CO - ADA-ES, Inc. recently announced that Michael D. Durham, Ph.D., President and Mark McKinnies, Senior Vice President and CFO, will present at the Howard Weil Energy Conference on Wednesday, April 4, 2007 at 11:10 a.m. at the Sheraton New Orleans Hotel.

ADA-ES' presentation will address the Company's recent developments in its primary growth markets, particularly in its mercury emission control segment. This is the first time management will discuss publicly ADA-ES' recent announcements related to vertical integration into the supply of activated carbon.

The presentation will be filed as a Current Report on Form 8-K with the U.S. Securities and Exchange Commission on April 4, 2007, and will also be available to any interested person via the Investor Information section of the Company's website at www.adaes.com.

Howard Weil, Inc. is a leading energy investment boutique that has been hosting energy conferences since 1971. This year an estimated 475 investors will be in attendance as well as over 100 participating companies.

SOURCE: ADA-ES, Inc.