Item 7.01 Regulation FD Disclosure.

On December 2, 2008, ADA-ES will present at the FBR Capital Markets 2008 Fall Investor Conference in New York, NY. A copy of the presentation materials is attached hereto as an exhibit 99.1.

On December 4, 2008, ADA-ES will present at the Raymond James 1st Annual Coal Investors Conference in New York, NY. The presentation materials are the same as presented in exhibit 99.1. However, a copy of the title page is attached hereto as an exhibit 99.2.

Item 9.01. Financial Statements and Exhibits

(d) The following items are furnished as exhibits to this report:

99.1 The FBR Capital Markets 2008 Fall Investor Conference presentation.

99.2 The Raymond James 1st Annual Coal Investors Conference presentation title page.