NASDAQ:ADES A Leader in Clean Coal Technology Rodman & Renshaw Annual Global Investment Conference September 9, 2009 New York, NY © Copyright 2009 ADA-ES, Inc. All rights reserved. Exhibit 99.1

-2- Please note that this presentation contains forward-looking statements within the meaning of U.S. securities laws, including statements relating to coal; future bids, contracts, projects, project funding, ownership, tax credits and revenues; statements regarding the new activated carbon (“AC”) facility ADA-CS is building; ADA-CS’ ability to supply AC; the likelihood, timing and impact of new laws, regulations and court rulings on our target markets; and anticipated sizes of and growth in our target markets. These forward-looking statements involve significant risks and uncertainties that could cause the actual results to differ materially from those anticipated, including changes in laws and regulations, government funding, prices, economic conditions and market demand; impact of competition and litigation; availability, cost of and demand for alternative energy sources and other technologies; operational difficulties; availability of skilled personnel; failure to satisfy performance guaranties; risks related to ADA-CS such as changes in the costs and timing of construction of the AC facility, failure to raise additional financing or satisfy conditions in existing agreements and inability to sign or close acceptable coal supply and off-take agreements in a timely manner; availability of raw materials and equipment for our businesses; and other factors discussed in greater detail in our filings with the SEC. You are cautioned not to place undue reliance on our forward-looking statements. These statements are presented as of the date made, and we disclaim any duty to update them unless required by law to do so.

-3- Clean Coal Technology Coal is an abundant, cheap, and secure fuel that provides over 50% of electricity in the US 1,100 coal-fired boilers in the U.S. ADA provides the technology to burn it cleaner Senior staff are industry recognized experts – 30-year track record of developing and then commercializing technologies Positioned to take advantage of public and political support for Clean Coal Technologies

-4- Investment Highlights Activated Carbon Injection (“ACI”) is deemed maximum achievable control technology (“MACT” ) for the removal of mercury ADA is a market leader for ACI equipment and engineering services Existing regulations create $200-400 million market for activated carbon (“AC”) Federal regulations likely to lead to $1 billion market for AC ADA-CS building new energy-efficient AC manufacturing facility in LA Developing capture technology for greenhouse gas CO 2 Started work under $3.2 million DOE and utility funded program Funding opportunities for CCS have increased under President Obama Mercury Control Refined Coal CO 2 Control Patented technology designed to improve combustion of PRB Coals in Cyclone boilers while reducing emissions of mercury and NOx Section 45 of IRS Code provides tax credit of $6/ton for ten years In negotiations with numerous parties to build several production facilities for refined coal product

-5- GROWTH AREA #1: Mercury Control

-6- Business Plan in Action for Mercury Control Stage 1: ADA demonstrated ACI with $80 million from DOE and leading utilities: Regulations followed. Stage 2: After market was created by regulations, ADA became a leader in the sale of ACI equipment: approximately $1 million per boiler. Stage 3: ADA-CS providing AC to utilities for a continuous revenue source: approximately $1-2 million per year per boiler.

-7- AC Market Drivers: Regulations for Mercury Control Existing rules create $200 - 400 million AC market * Pennsylvania rule is being contested in the courts State with proposed legis/regs more strict than CAMR (13) State with firm legis/regs more strict than CAMR (13) Planned plant that has ordered mercury control system Plant with consent decree limiting mercury emissions State currently accepting CAMR (24) P Total Existing Coal-Fired Capacity MW 24,000 12,000 2,400

-8- New Federal Legislation Likely in U.S. U.S. EPA MACT Process – Covers all 189 Hazardous Air Pollutants (HAPs) – Should result in 90 to 95% limit for mercury – Timing on regulation should be announced in the next 6-9 months U.S. Legislation – 3-P Bill could be added to Climate bill by Sen. Carper (D-DE) and Alexander (R-TN) which includes 90% Hg Canadian-wide mercury standard has been passed Expected to create $1 billion AC market and the need for an additional 500 ACI Systems

-9- ACI Equipment Sales: Status Contracts for over 110 ACI systems have been awarded by power companies to date – ADA market share: approximately 32% – The rest are split between 7 or 8 other companies A total of 150 systems will be needed to meet current state regulations Additional ~ 450 systems expected with federal regulation Working closely with largest utilities in the U.S. and Canada Key supplier of mercury control technology to major air pollution control companies

-10- New Market for Activated Carbon Created by Mercury Control 0 500 1,000 Activated Carbon (millions of lbs / yr) Current H20 AC Market Developing Market for Hg Control 2006 2010E 2015E ANNUAL U.S. MARKET Significant production gap Based on existing regulations Based on anticipated Federal regulation

nd ADA-CS New Activated Carbon Production ADA-CS New Activated Carbon Production Building largest AC plant(s) to date: 150 mm lbs/yr Capital cost: approx. $360 mm Plant designed to be low-cost producer 3-5 year development process: Under construction and on schedule Red River, LA plant startup target: mid-2010 Site permitted for 2 production line -11-

Potential for Up to Six Production Lines Two lines permitted adjacent to Red River Mine in Louisiana Permits filed for two lines at a site near Bismarck, ND Developing additional site near coal sources to minimize feedstock costs -12-

Ownership Structure after ECP Equity Investment Parent Companies Development Company Project Companies 35% Owner -13- *Based upon estimates of final capital and financing costs upon c losing of debt financing. 30%* 70%* Energy Capital Partners (ECP) ADA Carbon Solutions, LLC* Red River Environmental Products, LLC Underwood Environmental Products, LLC Morton Environmental Products, LLC Crowfoot Supply Company, LLC ADA - ES

Provided by Energy Capital Partners -14-

-15- Debt Financing for AC Plant Credit Suisse coordinating debt placement Equity has funded construction activities to date, keeping project on schedule – Weak credit markets have had no adverse impact on project funding to date Delaying debt placement until more favorable financial market conditions ECP is continuing to fund construction beyond anticipated equity investment – Continued funding by ECP likely to result in 30% ownership by ADA

-16- ADA-CS Interim AC Supply Facility Currently supplying AC to utilities prior to new plant start-up Sourcing high-quality AC AC processing and logistics facility – 40,000 sq. ft. facility w/ processing capacity of 8,000 lb/hr of Powdered AC – Equipment purchased to chemically treat, mill, package, and store AC – Easy access to rail and barge transportation

ADA’s Competitive Advantage : Complete Solutions Provider APC Expertise Mercury Measurement Interim Processing Production Facilities Logistics CO2 Capture Sorbent Development Ash Disposal Studies ACI System Enhancements Clean Coal Solutions Beneficial Use of Ash ACI Systems Flue Gas Conditioning Aftermarket Service ACI Testing System Optimization

GROWTH AREA #2: Control of Greenhouse Emissions: Carbon Dioxide -18-

Carbon Capture and Storage (CCS) International, Federal, and State Regulations are being proposed requiring 50% to 80% reduction in CO 2 emissions Requires development of technology to capture carbon from existing plants -19- 0 100 200 300 400 1 50% CO2 Reduction New

ADA-ES CO 2 Capture Technology Designed to capture CO 2 from flue gas in conventional coal-fired boilers Based on regenerable solid sorbents - advantages over competing technologies: – For the customer: lower cost and less parasitic energy – For ADA: continuous revenues from sale of proprietary chemical sorbents $3.2 million DOE R&D program with extensive industry support – Southern Company, Luminant, American Electric Power, Xcel Energy Expect to recognize approximately $1.9 million of the $3.2 million in 2009 and the remaining $1.3 million in 2010. There has been a significant increase in funding opportunities for CCS technology through DOE. -20-

Post-Combustion Capture Emission Control SO 2 , NO x , Hg, Particulate STEAM WATER Coal* 50% C 20% H 2 O 12% O 2 5% Ash 3% H 2 (S, Hg) *Coal composition varies greatly with grade and source. CO 2 Capture Air 78% N 2 21% O 2 Purified CO 2 to Storage Regeneration Flue Gas 12% CO 2 74% N 2 12% H 2 O 4% O 2 -21-

GROWTH AREA #3: Refined Coal Product ADA-ES’ opportunity through joint venture with an affiliate of NexGen Resources Corporation

Clean Coal Solutions LLC ADA Joint Venture Clean Coal’s patented refined coal technology, CyClean, is designed to enhance combustion of PRB coals in cyclone boilers It produces significant benefits to the customer: – Reduces NOx and mercury emission – Greater PRB fuel flexibility – Enhanced operability – Decreased demand for activated carbon Customer can share up to half of the $6/ton tax credit for qualified product Equipment is simple to fabricate and install – Capital investment approximately $800k per site – Fabrication and installation 3-5 months

Section 45 Refined Coal Tax Credit Tax credit incentive – $6 ton/coal for ten years – Example for 500 MW plant: 2 mm tons/yr will create a tax credit of $12 million per year for 10 years Tax credit qualifications – Placed in service by January 1, 2010 – Owned and operated by third party – Reduces NOx by 20% – Reduces Hg by 40% Cyclean market size – Discussions are being held with customers with twelve possible sites – >30 mm tons/yr of coal would produce tax credits in excess of $180 million/yr for ten years

Opportunities and Challenges for CyClean Opportunity – Target goal is to get up to six facilities installed before year-end – Produce >$10 million in earnings for ten years – $4 million due from NexGen to maintain 50% of JV Challenges – Equipment must be fabricated and installed by year-end • Two systems have been ordered • Additional staged purchases are planned – Approximately $3 million in JV capital expenditures – Waiting for explicit guidance from IRS – Permits required prior to installation – Complicated contracts with utility partners must be completed for each facility – Agreements with monetizers must be secured

Financial Highlights Cash flow positive on an annual basis 2003-2007 Revenue CAGR of 23%, 2003 - 2008 6M’09 total revenues up 24% to $9.7 mm due to increased ACI system sales* As of 6/30/09: – 7.0 mm diluted shares outstanding – 50%+ held by institutions – ~11% held by insiders and employees Balance sheet highlights (at 06/30/09): – Cash & equivalents of $1.3 mm – Working capital of $4.7mm – No long-term debt – Shareholders’ equity of $30.3 mm Market cap: $27.7 mm (08/14/09) -26- * Six months 2009 financial results do not consolidate the results of the subsidiary, ADA Carbon Solutions, LLC, ADA’s joint venture with Energy Capital Partners and its affiliates.

Summary ADA-ES instrumental in creating mercury control market – Existing rules: estimated 150 ACI systems, 400 million lbs/yr of AC - $200-400 mm market – Pending Federal Rule: estimated 600-700 total ACI systems, 1 billion lbs/yr of AC - $1 billion market Leading provider of engineering services and equipment for mercury control ADA Carbon Solutions is building new AC plant for this market; expected to come online mid-2010 – Energy Capital Partners I, LP and its affiliated funds providing equity financing – Debt to be supported by long-term off-take contracts – $160 million or 1/3 of plant capacity sold/committed for – In negotiations for additional contracted volume Developing carbon capture technology – Significant funding opportunities ($3.4 billion) from DOE this year In negotiations to build several refined coal facilities for Section 45 tax credits -27-