United States

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-K/A

(Amendment No. 2)

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE
ACT OF 1934

For the fiscal year ended December 31, 2010

Commission File Number: 000-50216





ADA-ES, Inc.

(Name of registrant as specified in its charter)

|                         |  |                                  
|------------------------ |  | ---------------------------------
|Colorado                 |  | 84-1457385                       
|(State of incorporation) |  | (IRS Employer Identification No.)

9135 South Ridgeline Boulevard, Suite 200, Highlands Ranch, Colorado 80129

(Address of principal executive offices) (Zip Code)

(Registrants telephone number, including area code): (303) 734-1727

Securities registered under Section 12(b) of the Exchange Act:

|                           |  |                                          
|-------------------------- |  | -----------------------------------------
|Title of each class        |  | Name of each exchange on which registered
|Common Stock, no par value |  | NASDAQ Capital Market                    

Securities registered under Section 12(g) of the Exchange Act: None





Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities
Act.     ̈  Yes    x  No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Exchange
Act.     ̈  Yes    x  No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the past 12 months (or for such shorter period that
the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes     ̈  No

Indicate by check mark whether the registrant has submitted electronically and
posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit
and post such files).     ̈  Yes     ̈  No

Indicate by check mark if disclosure of delinquent filers in response to Item 405 of Regulation S-K is not contained herein, and will not be
contained, to the best of registrants knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form
10-K.     ̈

Indicate by check mark whether the registrant is a large
accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definition of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the
Exchange Act.



|                        |  |   |  |                           |  |  
|----------------------- |  | - |  | ------------------------- |  | -
|Large accelerated filer |  |  ̈ |  | Accelerated filer         |  |  ̈
|                        |  |   | 
|Non-accelerated filer   |  |  ̈ |  | Smaller Reporting Company |  | x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act.)     ̈  Yes    x  No

The aggregate market value of the voting common stock held by non-affiliates as of June 30, 2010 was $34,500,000.

As of March 25, 2011, there were outstanding 7,605,938 shares of the Registrants common stock, no par value.





DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the Definitive Proxy Statement to be filed pursuant to Regulation 14A for ADA-ES, Inc.s annual shareholder meeting for 2011 are incorporated by reference into Part III of this Form 10-K.



1



---

EXPLANATORY NOTE

ADA-ES, Inc. (the Company) is filing this Amendment No. 2 on Form 10-K/A (this Amendment) to amend its Annual Report on Form 10-K for the fiscal year ended December 31,
2010 originally filed with the Securities and Exchange Commission (the SEC) on March 28, 2011 (the Original Filing) and subsequently amended on July 1, 2011. This Amendment reflects the restatement of the
Companys consolidated financial statements and amendment of related disclosures as of and for the fiscal year ended December 31, 2010 as discussed below and in Note 15 to the accompanying restated consolidated financial statements.

1. Background of the Restatement

As discussed in the Companys Current Report on Form 8-K dated August 14, 2012, the Companys management determined, after consultation with the Companys Board of Directors, Audit
Committee, independent registered public accounting firm and outside tax experts, that the Companys previously issued audited consolidated financial statements included in its Annual Reports on Form 10-K for the fiscal years ended
December 31, 2010 and 2011 and the interim unaudited consolidated financial statements included in our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2011, June 30, 2011, September 30,
2011, March 31, 2012 and June 30, 2012 needed to be restated as a result of certain corrections to the figures and disclosures contained therein and therefore could no longer be relied upon.

Deferred Tax Assets Valuation Allowance

In August 2012, after extensive discussions with the SECs Division of Corporation Finance and Office of the Chief Accountant and the Companys outside tax experts, independent registered public
accounting firm, Audit Committee and Board of Directors, management determined that the Company should have recognized a full valuation allowance against its net deferred tax assets as of December 31, 2010 and for each subsequent quarter
thereafter. Management determined that it was necessary to record the valuation allowance against the Companys deferred tax assets after reconsidering the weight given in the original assessment to the relevant information used to measure the
positive and negative evidence regarding the potential for ultimate realization of the deferred tax assets.

Realization of the deferred tax
assets is dependent upon the Companys ability to generate future taxable income. In its reassessment, management concluded that the objective and verifiable negative evidence represented by historical losses outweighed more subjective positive
evidence of anticipated future income. As a result, management determined that it was necessary to record a full valuation allowance against the Companys deferred tax assets and is restating the consolidated financial statements for the fiscal
year ended December 31, 2010.

2. Impact on the Consolidated Financial Statements

The financial statement effect of these changes on the Companys Consolidated Balance Sheet as of December 31, 2010, and the Consolidated
Statement of Operations, Consolidated Statement of Changes in Stockholders Equity (Deficit) and Consolidated Statement of Cash Flows for the fiscal year ended December 31, 2010 is discussed in Note 15 in the accompanying consolidated
financial statements. The restatement reflects non-cash adjustments and has no effect on previously reported operating income results.

3. Internal Control over Financial Reporting and Disclosure Controls and Procedures Considerations

Management has concluded that a material weakness in the Companys internal control over financial reporting existed related to the establishment and
maintenance of a valuation allowance against the Companys deferred tax assets. Accordingly, this Amendment amends the Companys disclosures regarding the effectiveness of the Companys internal control over financial reporting and
disclosure controls and procedures as of December 31, 2010.

4. Amended Items

No attempt has been made in this Amendment to modify or update the disclosures in the Original Filing except as required to reflect the effect of the
restatement discussed herein. Except as otherwise noted herein, this Amendment continues to describe conditions as of the date of the Original Filing and the disclosures contained herein have not been updated to reflect events, results or
developments that occurred after the date of the Original Filing, or to modify or update those disclosures affected by subsequent events. Among other things, forward-looking statements made in the Original Filing have not been revised to reflect
events, results or developments that occurred or facts that became known to us after the date of the Original Filing, other than the restatement, and such forward-looking statements should be read in conjunction with our filings with the SEC
subsequent to the filing of the Original Filing. Accordingly, this Amendment should be read in conjunction with the Original Filing and the Companys other filings with the SEC.

Part II  Item 6 (Selected Financial Data), Part II  Item 7 (Managements Discussion and Analysis of Financial Condition and Results of Operations), Part II  Item 8
(Consolidated Financial Statements and Supplementary Data) and Part II  Item 9A (Controls and Procedures) have been amended from the Original Filing as a result of the restatement. Part II  Item 5 (Market for Registrants
Common Equity, Related Stockholder Matters and Issuer Purchase of Equity Securities) has been amended to reflect the issuance of unregistered shares of our common stock pursuant to our Amended and Restated 2007 Equity Incentive Plan and 2005
Directors Compensation Plan. Part IV  Item 15 (Exhibits and Financial Statement Schedules) has also been amended to, among other things, include currently dated certifications from the Companys principal executive officer and
principal financial officer as required by Sections 302 and 906 of the Sarbanes-Oxley Act of 2002. The certifications of the Companys principal executive officer and principal financial officer are attached to this Amendment as
Exhibits 31.1, 31.2, 32.1 and 32.2.



2



---

PART II

Item 5. Market for Registrants Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities (restated).

Market Information

Our common stock currently trades on the NASDAQ Capital Market under
the symbol ADES. The table below sets forth the price range of our common stock for 2010 and 2009:



|            |  |      |       |  |      |   |      |      |  |   |      |  |  |   |      | 
|----------- |  | ---- | ----- |  | ---- | - | ---- | ---- |  | - | ---- |  |  | - | ---- | 
|            |  | 2010 |       |  | 2009 |  
|            |  | High |       |  | Low  |   |      | High |  |   | Low  | 
|1st Quarter |  | $    | 9.50  |  |      | $ | 4.72 |      |  | $ | 5.97 |  |  | $ | 2.42 | 
|2nd Quarter |  | $    | 8.31  |  |      | $ | 5.00 |      |  | $ | 5.00 |  |  | $ | 2.45 | 
|3rd Quarter |  | $    | 7.17  |  |      | $ | 4.72 |      |  | $ | 4.70 |  |  | $ | 3.05 | 
|4th Quarter |  | $    | 11.70 |  |      | $ | 4.54 |      |  | $ | 7.45 |  |  | $ | 2.05 | 

Holders

The number of record holders of our common stock as of March 25, 2011 was approximately 1,500. The approximate number of beneficial shareholders is
estimated at 3,500.

Dividends

We have not paid dividends since inception. We currently have no plans to pay dividends in the foreseeable future.

Securities authorized for issuance under equity compensation plans

The disclosure required by this Item is included under Item 12 of this Report.

Recent
Sales of Unregistered Securities; Use of Proceeds from Registered Securities

Under our 2007 Equity Incentive Plan, adopted by our Board of
Directors on April 27, 2007 and approved by our shareholders on June 19, 2007 (the Original 2007 Plan), as fees for service on our Board of Directors by John Eaves, a representative of Arch Coal, Inc., we issued the following
unregistered shares of our common stock to Arch Coal, Inc. on the following dates:



|                 |  |                 |        | 
|---------------- |  | --------------- | ------ | 
|                 |  | Arch Coal, Inc. |       
|October 9, 2007  |  |                 | 429    | 
|October 17, 2008 |  |                 | 1,917  | 
|January 16, 2009 |  |                 | 695    | 
|July 31, 2009    |  |                 | 9,084  | 
|                 |  |                 |        | 
|Total            |  |                 | 12,125 | 
|                 |  |                 |        | 

Under our 2005 Directors Compensation Plan, adopted by our Board of Directors on March 17, 2005 and approved
by our shareholders on May 12, 2005 (the 2005 Plan), as fees for John Eaves service on our Board of Directors, we issued the following unregistered shares of our common stock to Arch Coal, Inc. under the 2005 Plan:



|                 |  |                 |       | 
|---------------- |  | --------------- | ----- | 
|                 |  | Arch Coal, Inc. |      
|June 19, 2005    |  |                 | 603   | 
|October 9, 2007  |  |                 | 1,000 | 
|October 17, 2008 |  |                 | 1,000 | 
|January 16, 2009 |  |                 | 1,000 | 
|                 |  |                 |       | 
|                 | 
|Total            |  |                 | 3,603 | 
|                 |  |                 |       | 



3



---

Under our Amended and Restated 2007 Equity Incentive Plan, originally adopted by our Board of Directors on
April 27, 2007, approved by our shareholders on June 19, 2007 and amended and restated by our Board of Directors to make non-material changes on August 31, 2010 (the 2007 Plan), as fees for their service on the Board of
Directors of the Company, we issued the following unregistered shares of our common stock under the 2007 Plan:



|                                              |  |                 |       |  |              |  |       |                   |  |  |        |  |  |  |        | 
|--------------------------------------------- |  | --------------- | ----- |  | ------------ |  | ----- | ----------------- |  |  | ------ |  |  |  | ------ | 
|Director:                                     |  | January 28,2010 |       |  | June 29,2010 |  |       | September 20,2010 |  |  | Total  | 
|John Eaves (shares issued to Arch Coal, Inc.) |  |                 | 2,256 |  |              |  | 1,931 |                   |  |  | 1,146  |  |  |  | 5,333  | 
|Robert Caruso                                 |  |                 |       |  |              |  |       |                   |  |  | 1,851  |  |  |  | 1,851  | 
|Derek Johnson                                 |  |                 |       |  |              |  |       |                   |  |  | 1,642  |  |  |  | 1,642  | 
|Ronald Johnson                                |  |                 |       |  |              |  | 858   |                   |  |  | 2,031  |  |  |  | 2,889  | 
|W. Phillip Marcum                             |  |                 |       |  |              |  | 2,349 |                   |  |  | 1,699  |  |  |  | 4,048  | 
|Jeffrey C. Smith                              |  |                 |       |  |              |  | 1,995 |                   |  |  | 1,210  |  |  |  | 3,205  | 
|Richard Swanson                               |  |                 |       |  |              |  | 2,292 |                   |  |  | 2,446  |  |  |  | 4,738  | 
|                                              |  |                 |       |  |              |  |       |                   |  |  |        |  |  |  |        | 
|                                              |  |                 |       | 
|Total                                         |  |                 | 2,256 |  |              |  | 9,425 |                   |  |  | 12,025 |  |  |  | 23,706 | 
|                                              |  |                 |       |  |              |  |       |                   |  |  |        |  |  |  |        | 

On January 28, 2010, we issued 1,000 unregistered shares of our common stock under our 2005 Plan to Arch Coal, Inc. as
fees for John Eaves service on our Board of Directors.

The issuances of all of these shares were exempt from registration under
Section 4(a)(2) of the Securities Act of 1933, as amended, as sales of securities that do not involve a public offering or distribution. No underwriters were involved, no sales commission or other remuneration was paid, and we did not receive
any cash proceeds in connection with these issuances.

Purchases of Equity Securities by the Company and Affiliated Purchasers

Neither we nor any affiliated purchaser, as defined in SEC Rule 10b-18(a)(3), purchased any of our equity securities during
the quarter ended December 31, 2010.

Item 6. Selected Financial Data (restated).

FIVE-YEAR SUMMARY OF SELECTED FINANCIAL DATA



|                                                       |  |                          |         |   |      |   |        |      |  |   |        |   |  |      |        |  |  |   |        | 
|------------------------------------------------------ |  | ------------------------ | ------- | - | ---- | - | ------ | ---- |  | - | ------ | - |  | ---- | ------ |  |  | - | ------ | 
|                                                       |  | Years Ended December 31, |        
|(Dollars in thousands, except per share data)          |  | 2010(restated)           |         |   | 2009 |   |        | 2008 |  |   | 2007   |   |  | 2006 |       
|Income Statement Data:                                 |  |                          |         |   |      |   |        |      |  |   |        |   |  |      |        |  |  |   |        | 
|Revenues                                               |  | $                        | 22,281  |   |      | $ | 20,061 |      |  | $ | 16,193 |   |  | $    | 19,248 |  |  | $ | 15,488 | 
|Net income (loss)                                      |  | $                        | (31,127 | ) |      | $ | (8,771 | )    |  | $ | (4,106 | ) |  | $    | 247    |  |  | $ | 377    | 
|Net income (loss), per common share, basic and diluted |  | $                        | (4.21   | ) |      | $ | (1.26  | )    |  | $ | (.67   | ) |  | $    | .05    |  |  | $ | .07    | 
|Dividends declared per common share                    |  | $                        | -0-     |   |      | $ | -0-    |      |  | $ | -0-    |   |  | $    | -0-    |  |  | $ | -0-    | 
|                                                       | 
|                                                       |  | As of December 31,       |        
|                                                       |  | 2010(restated)           |         |   | 2009 |   |        | 2008 |  |   | 2007   |   |  | 2006 |       
|Balance Sheet Data:                                    |  |                          |         |   |      |   |        |      |  |   |        |   |  |      |        |  |  |   |        | 
|Total assets                                           |  | $                        | 41,011  |   |      | $ | 40,967 |      |  | $ | 75,142 |   |  | $    | 34,906 |  |  | $ | 31,754 | 
|Long-term debt                                         |  | $                        | -0-     |   |      | $ | -0-    |      |  | $ | -0-    |   |  | $    | -0-    |  |  | $ | -0-    | 
|Stockholders equity (deficit)                         |  | $                        | (2,213  | ) |      | $ | 24,351 |      |  | $ | 56,987 |   |  | $    | 28,552 |  |  | $ | 27,678 | 

See the audited financial statements attached hereto under Item 8 for additional information, including Notes 8 and
15 relating to the restatement.



QUARTERLY FINANCIAL DATA 
UNAUDITED



|                                                    |  |            |        |   |            |   |        |            |  |   |                      |   |  |            |         |   |            |   |       |            |  |   |            |   |  |   |        |   |  |   |        |  
|--------------------------------------------------- |  | ---------- | ------ | - | ---------- | - | ------ | ---------- |  | - | -------------------- | - |  | ---------- | ------- | - | ---------- | - | ----- | ---------- |  | - | ---------- | - |  | - | ------ | - |  | - | ------ | -
|                                                    |  | 2010       |        |   | 2009       |  
|(Amounts in thousands except per share data)        |  | 1stQuarter |        |   | 2ndQuarter |   |        | 3rdQuarter |  |   | 4thQuarter(restated) |   |  | 1stQuarter |         |   | 2ndQuarter |   |       | 3rdQuarter |  |   | 4thQuarter |  
|Revenues                                            |  | $          | 3,867  |   |            | $ | 1,937  |            |  | $ | 7,509                |   |  | $          | 8,968   |   |            | $ | 4,867 |            |  | $ | 4,758      |   |  | $ | 3,735  |   |  | $ | 6,701  |  
|Gross margin                                        |  | $          | 1,355  |   |            | $ | 8      |            |  | $ | 5,826                |   |  | $          | 6,479   |   |            | $ | 2,044 |            |  | $ | 1,805      |   |  | $ | 1,199  |   |  | $ | 1,143  |  
|Net loss                                            |  | $          | (2,820 | ) |            | $ | (3,710 | )          |  | $ | (5,823               | ) |  | $          | (18,774 | ) |            | $ | (543  | )          |  | $ | (1,630     | ) |  | $ | (5,315 | ) |  | $ | (1,283 | )
|                                                    |  |            |        |   |            |   |        |           
|Common Stock Data                                   |  |            |        |   |            |   |        |            |  |   |                      |   |  |            |         |   |            |   |       |            |  |   |            |   |  |   |        |   |  |   |        |  
|Basic and Diluted:                                  |  |            |        |   |            |   |        |            |  |   |                      |   |  |            |         |   |            |   |       |            |  |   |            |   |  |   |        |   |  |   |        |  
|Net loss per share                                  |  | $          | (.39   | ) |            | $ | (.50   | )          |  | $ | (.78                 | ) |  | $          | (2.51   | ) |            | $ | (.08  | )          |  | $ | (.24       | ) |  | $ | (.76   | ) |  | $ | (.18   | )
|Basic and Diluted average common shares outstanding |  |            | 7,194  |   |            |   | 7,412  |            |  |   | 7,455                |   |  |            | 7,494   |   |            |   | 6,869 |            |  |   | 6,929      |   |  |   | 7,021  |   |  |   | 7,070  |  



4



---

Item 7. Managements Discussion and Analysis of Financial Condition and Results of Operation
(restated).

Restatement

With this Amendment we have restated the following previously filed consolidated financial statements, data and related disclosures: Consolidated Balance
Sheet as of December 31, 2010 and Consolidated Statement of Operations, Consolidated Statement of Changes in Stockholders Equity (Deficit) and Consolidated Statement of Cash Flows for the fiscal year ended December 31, 2010. The
restatement reflects non-cash adjustments and has no effect on previously reported operating income results or cash flows from operations. The following Management Discussion and Analysis of Financial Condition and Results of Operations
(MD&A) should be read in conjunction with Part II  Item 8 of this Amendment, the audited consolidated financial statements and notes thereto, as well as the Companys other filings with the SEC.

The restatement results from managements determination that a full valuation allowance against the Companys net deferred tax assets should
have been recognized as of December 31, 2010 and all subsequent quarters thereafter.

The following MD&A incorporates the restated
figures reflecting these changes. For this reason the data set forth in this section may differ from that presented in discussions and data in our previously filed Annual Report on Form 10-K for the fiscal year ended December 31, 2010, as
amended.

Overview

We develop, offer and implement proprietary environmental technology and market equipment and specialty chemicals to the coal-burning electric power generating industry, to the Portland cement industry
and to industrial boiler operators. Beginning this year, we have changed our segment reporting structure to better reflect the way we manage and measure the performance of our business. We have three operating segments: EC (emissions control); CC
(CO2capture) and RC (refined coal). The EC segment includes
revenue from the supply of emissions control systems including powdered activated carbon injection (ACI) systems, dry sorbent injection systems to control SO2and other acid gases and the sale of specialty chemicals, equipment and services for flue gas conditioning projects, the
licensing of certain technology, consulting services related to such matters and other applications. The CC segment includes revenue from projects relating to the CO2capture and control market, including projects co-funded by government agencies, such as the Department of Energy
(DOE) and industry supported contracts. The RC segment primarily represents revenues from the leasing of two RC facilities.

We conduct research and development efforts in CO2capture and control from coal-fired boilers. On September 30, 2010, we signed our second significant contract related to CO2capture with the DOE, which is scheduled to continue through the end of 2014. We are marketing our RC facilities through
our 50% interest in our Clean Coal joint venture with NexGen an affiliate of NexGen Resources Corporation. We currently own two RC facilities through Clean Coal, which leases them through its subsidiaries to a subsidiary of a major financial
institution. The two RC facilities are operated by Clean Coal Solutions Services, LLC (CCSS), a Colorado limited liability company owned 50% by us and 50% by NexGen. In addition, the Carbon Solutions joint venture, of which we owned
25.9% as of December 31, 2010, has commenced commercial operations at its newly constructed AC Facility whose production is focused primarily for mercury emissions control applications for coal burning electric power generators.

Emissions Control

Environmental
Legislation and Regulations

Mercury has been identified as a toxic substance and, pursuant to a court order, the EPA issued regulations
for its control from power plants in March 2005, which was known as the Clean Air Mercury Rule or CAMR. CAMR had been subject to significant challenges since it was issued and was ultimately declared invalid. In April 2010,
the U.S. District Court of Appeals of the District of Columbia approved the consent agreement reached last year between EPA and a coalition of public health and environmental groups that sued in 2008 to force the agency to set tighter emission
limits. That settlement requires EPA to issue a final rule requiring strict plant-specific controls for power plants toxic air pollutants no later than November 16, 2011. Recent rulings by the courts related to the Industrial Boiler MACT,
defined below, indicate that they will not tolerate significant deviations from the expected schedule for finalization. On March 16, 2011, the EPA issued a draft Air Toxics Rule, a MACT based hazardous pollutant regulation, which provides for
among other provisions, control of mercury organics and volatile metals such as arsenic, selenium and acid gases such as HCl and other HAPs such as dioxins and furans. The draft Air Toxics Rule is based upon the average of the best-performing 12% of
the power plants and will only allow minimal averaging or trading. The Air Toxics Rule standard proposed a limit for mercury emissions that will require capture of 80% to 90% of the mercury in coal burned in electric power generation boilers. While
the new regulations will require additional emission control equipment, the EPA estimates a small percentage of the current generation fleet will be forced to retire due to the cost of complying with the regulations.

In addition to the electric power generators, EPA has developed a Cement MACT which is a MACT-based mercury emissions regulation for the Portland Cement
Industry through proposed amendments to the National Emission Standards for HAPs for the Portland Cement Manufacturing Industry. The Cement MACT regulation was finalized on August 9, 2010. This regulation requires cement plants to reduce HAPs
by 2013 including 92% of mercury and 83% of hydrocarbons. This regulation could require ACI systems on up to 90 cement kilns in the U.S., which are owned by approximately 15 companies. We have been engaged in several testing programs for cement
companies to define their emissions and evaluate how our ACI equipment and sorbents will work in that industry. The tests were designed to evaluate the effectiveness of collecting mercury and organics from cement kiln exhaust gas streams. We believe
the Cement MACT will increase the market for both ACI systems and AC.



5



---

The EPA has also issued a new Industrial Boiler MACT regulation for coal-fired boilers that provide mostly
steam and/or electricity for small industrial and institutional power needs with no more than 25 MW of electricity sold to the grid. The final regulation, which is under reconsideration for the wide variety of boiler types and fuels used, was
released on February 23, 2011, with compliance deadlines in early 2014. The Industrial Boiler MACT could impact over 600 existing coal-fired industrial boilers. The emission limit of 4.6 pounds of mercury per Trillion BTU for existing and two
pounds per Trillion BTU for new coal-fired industrial boilers will require 60% to 70% capture of mercury from boilers burning bituminous coals and 40% to 50% capture of mercury from boilers burning sub-bituminous coals. We believe the final
Industrial Boiler MACT will increase the market for ACI systems by several hundred and the associated AC by 50 to 100 million pounds per year. These totals could be even higher, when considering that 400 or more biomass and wood fired boilers
are also covered under this regulation and, as with coal-fired units, require both mercury and other hazardous air pollutant reductions (dioxins and furans), that can be controlled by activated carbon injection. We are in discussions with several
companies that own and operate a number of industrial boilers regarding how our technology can help such companies comply with the new regulations.

The Clean Air Act requires that all emission control related regulations be met within 36 months. We believe that substantial long-term growth of the EC market for the electric power generation industry
will most likely depend on how industry chooses to respond to the pending and new federal regulations. In general, all three of these regulations are less stringent than expected, meaning fewer scrubbers and forced retirements, however, we
anticipate the final federal MACT regulations will create an even larger market for our mercury control products beyond 2011. We expect that as many as 1,200 existing coal-fired boilers will be affected by such regulations, if and when they are
fully implemented. Many power companies recognize the urgency of these pending regulations, and as a result we are contracting with power plants to evaluate mercury control options at a number of their plants. This could result in near-term ACI
demonstration revenue, puts us in close contact with companies that could purchase ACI equipment and could result in long-term contracts for AC.

In addition to the U.S. market, we are seeing market potential in the six Canadian provinces that have passed their own mercury control regulations.

ACI Systems and Services

Thus far to
date, we have installed or are in the process of installing 47 ACI systems. Some market demand continues in 19 states and 6 Canadian provinces that either have passed their own mercury control regulations or have entered agreements with power plants
to reduce mercury emissions for new power plants. We remain active in the bid and proposal process and expect the number of awards this year to remain flat or decline compared to last year. Although we expect the equipment market to continue to be
static in 2011, we believe we have the opportunity for significant revenue growth for our EC products and services when final federal regulations or legislation affects a significant portion of previously uncontrolled and existing boilers. Given the
current expected timing for finalization of the Air Toxics Rule, we anticipate the need for 500 to 700 ACI systems to be supplied between 2012 and 2015, which would require rapid scale-up of our production capabilities to maintain our approximate
30% market share. For an average sized plant, the ACI equipment costs are between $2 million to $3 million.

We have
developed and are offering commercial systems to inject dry alkali sorbents for control of acid gases such as
SO3and HCl. Dry sorbent injection systems, which cost
approximately $2 million to $3 million for an average size plant, provide a low-capital cost alternative to scrubbers for meeting certain provisions of the Air Toxics Rule. We conducted full-scale tests of this equipment in 2010. Experts have
predicted that up to a quarter of the 1,200 plus coal fired boilers could be forced to shut down if they were required to add scrubbers and selected catalyst reduction systems which can cost $200 to $300 million per installation.

We are investigating, developing and providing services and systems to measure and mitigate acid gasses from coal fired boilers. These acid gas emissions
are often the unintended result of the retrofit and operation of NOx control technology on medium to high sulfur coal-fired boilers.

Arch
Coal Development and License Agreement for Enhanced Coal

Since 2004, we have been working with Arch Coal to explore certain unique
characteristics of some types of coals produced by Arch Coal that allow them to be burned with lower emissions. We believe a recent technical breakthrough provides a potential means to obtain similar performance improvements from all of Arch
Coals PRB coals. As a result on June 25, 2010, we entered into a Development and License Agreement (the License Agreement) with Arch Coal. Pursuant to the License Agreement, we provided Arch Coal with an exclusive,
non-transferable license to use certain technology to produce Enhanced Coal by the application of ADAs proprietary coal treatment technology for coal mined by Arch Coal at mines and sites located in the PRB. We expect that the technology will
reduce certain emissions from the burning of the PRB coal, which should help to meet the Air Toxics Rule regulation. Pursuant to the License Agreement, we are providing development services to Arch Coal aimed at applying the technology to the PRB
coal. In addition, if we develop improvements to the technology that are related to the reduction of certain emissions from the burning of PRB coal, that technology will either be included in the license at no additional cost, or, under certain
circumstances, we will negotiate with Arch Coal to determine if Arch Coal wants to use the additional improvements. We retain all right, title and interest, including all intellectual property rights, in and to any technology we license to Arch
Coal. The initial demonstration of coal treated at the mine and shipped by rail to a power plant produced promising results.

In consideration
for the development work and the license to Arch Coal, Arch Coal paid us an initial, non-refundable license fee in cash of $2 million in June 2010 and we have recognized $666,000 of such amount as revenue from the inception of the agreement through
the six-month period ended December 31, 2010. Arch Coal may be obligated to make royalty payments to us that could amount to as much as $1 per ton of Enhanced Coal sold by Arch Coal, depending upon the successful implementation of the
technology and Arch Coals future sales of the Enhanced Coal product. Arch Coal currently produces more than 100 million tons of PRB coal per year. Any royalty ultimately payable under the License Agreement will first be subject to credit
to Arch Coal of an amount equal to the initial license fee, other development and operational costs paid by Arch Coal plus a rate of return on such payments.



6



---

The License Agreement contains standard indemnification provisions customary for license agreements,
including indemnification by us for any losses suffered by Arch Coal as a result of any claims for infringement by the technology as to intellectual property rights of any third party. Either party may terminate the License Agreement upon written
notice to the other party if the other party materially breaches any material term of the License Agreement, generally with a right to cure a breach within 30 days. In addition, if we materially breach the provisions of the License Agreement
relating to ownership of the related technology and maintaining confidential information, and fail to correct any such breach within 30 days, the licenses granted to Arch Coal become fully paid-up, perpetual and irrevocable, without any further
obligation of Arch Coal to pay any ongoing royalty.

In recent tests we have shown that we can enhance PRB coal at the mine and achieve
mercury reductions when the coal is burned at power plants. Based upon these results we are planning on sending additional trainloads of the coal to different plants to show the capabilities of this new product that we believe provides a $2 to $4
per ton benefit of coal to the power plants. The proposed Air Toxics Rule could create a market for a significant percentage of the greater than 100 million tons per year of PRB coal mined by Arch. Additional demonstrations are planned in 2011.

As a part of entering into the License Agreement we agreed to negotiate and enter into a Supply Agreement under which Arch Coal will purchase
the additives described in the License Agreement exclusively from us, and we will supply Arch Coal with the additives it needs. We expect to negotiate the final terms of the Supply Agreement in the next six months.

Sale of Common Stock to Arch Coal

On
March 23, 2010, under a subscription agreement with Arch Coal, we issued and sold to Arch Coal in a private placement an aggregate of 143,885 shares of our common stock at a purchase price of $6.95 per share for aggregate proceeds of $1.0
million. The per-share price was the closing sales price of our common stock as listed on the NASDAQ Capital Market on the day before we entered into the subscription agreement.

CO2Capture

In addition to our two key growth
areas, emissions control and RC, we continue to demonstrate our position as a premier developer of innovative clean energy technologies. Control of CO2from coal-fired power plants is currently a topic of discussion in Washington and a significant issue for the coal
industry as a result of the impact of CO2emissions on
climate change. A number of permits for new coal-fired plants were rejected by various state officials in 2010 in response to protests by environmental groups. We see this as an opportunity and have begun developing technologies to address the needs
of our customers through reduction of CO2generation,
CO2capture and beneficial use of CO2.

DOE is funding CO2control projects related to our business and on September 30, 2010, we signed a new contract with DOE to continue
development of clean coal technology to capture CO2from
coal-fired power plants and other industrial sources of CO2emissions. We are the prime contractor for the approximately $19 million project administered by DOEs National Energy Technology Laboratory which is providing $15 million of the funding. We expect approximately $4 million in co-funding and
support to be provided by several major electric power generation companies including Southern Company, Luminant and the Electric Power Research Institute. The project provides funding to advance our commercialization plan for regenerable
solid-sorbent technology, which is designed to capture CO2generated by coal-fired power plants.

In 2010 we began the first field tests of our CO2control technology on a $3.8 million program co-funded by DOE, as well
as several major forward-thinking utility companies. The initial results at a plant confirmed the promising performance we had demonstrated in our laboratory. The pilot plant was moved to another plant for additional testing. Once captured, the
CO2could be either stored underground (sequestration) or
beneficially used in processes such as enhanced oil recovery. This technology appears to offer potential cost and energy advantages over competing liquid-solvent-based technologies.

In October 2010 we began work on the new DOE CO2project, which is expected to run for a total of 51 months to scale-up the technology to the one-megawatt level, which is
a key step in the technology development process. This contract will not only fund research and development (R&D) on this technology, but it will also provide significant contributions to our revenue and margin over the next four
plus years.

We anticipate that DOE programs will continue to represent an important component of the revenue stream of the Company over the
next several years as we position ourselves for the market growth for ACI systems, enhanced coal additives and related technology with Arch Coal and other technologies for emissions control.

Refined Coal

Environmental Legislation and Regulations

Clean Coals primary opportunity is based on certain tax credits that are available under Section 45 of the Internal Revenue Code (Section
45 tax credits), as it was amended by the American Jobs Creation Act of 2004, the Emergency Economic Stabilization Act of 2008, the American Recovery and Reinvestment Act of 2009 for qualifying RC and the Tax Relief and Job Creation Act of
2010. In December 2009, the IRS issued the anticipated guidance as to the specifics concerning how the emissions reductions are to be measured and certified to demonstrate compliance necessary to qualify for the tax credits. Clean Coal placed two RC
facilities in service prior to January 1, 2010 and demonstrated the required emission reductions for their RC product to qualify for the tax credits. As a result of the 2010 legislation, we are pursuing strategic relationships to sell or lease
six additional facilities during 2011 with a potential of 16 total facilities. The tax credits amount to an annually escalating $6.27 per ton of RC for a period of ten years for facilities placed in service period to January 1, 2012.



7



---

Based on the current Section 45 tax credits, we expect Clean Coal to generate revenues from leasing or
selling RC facilities to financial parties or generate tax credits by retaining and operating the RC facilities that we expect to meet the placed in service deadline through December 31, 2021. Upon expiration of the tax credits on
December 31, 2021, the leases of our RC facilities to financial parties will terminate. We may then lease the RC facilities directly to the utilities or operate them on behalf of utility customers given the significant benefit of the resulting
mercury reductions such facilities provide. The tax credits would no longer be available absent further extension by Congress.

Clean Coal

On June 29, 2010, Clean Coal executed contracts in which the two RC facilities were leased to GS RC Investments LLC, the lessee. The
leases have base terms that run through December 31, 2012 (the Initial Term), and automatically renew for annual terms through the end of 2019. The other 50% of Clean Coal is owned by NexGen and the two RC facilities are owned,
respectively, by two special purpose entities (the Lessors). Clean Coal owns 95%, and we and NexGen each own 2.5% of the Lessors. The lessee has entered into supply agreements for each RC facility pursuant to which it supplies RC to the
applicable power plant owner. CCSS will (subject to oversight by the lessee) operate and maintain the RC facilities under two Operating and Maintenance Agreements entered into with the lessee as part of the transaction. In addition to reimbursement
for costs incurred, CCSS receives a fee of $.08 per ton of coal processed through the RC facilities for its services. The lessee pays the costs for operating and maintaining the RC facilities, subject to certain limitations. CCSS also arranges for
the purchase and delivery of certain chemical additives necessary for lessees production of RC under two supply agreements entered into with the lessee as part of the transaction. CCSS receives a fee for its services in the amount of 5% of the
cost of chemical additives and transportation costs. The term of each supply agreement runs coincident with the leases.

Since its inception,
we have been considered the primary economic beneficiary of Clean Coal and have consolidated its accounts in our financial statements, but we do not consolidate the results of CCSS because NexGen controls the entity pursuant to the operating
agreement of the entity. The leases included an upfront payment of $9 million in prepaid rent for both facilities and provide for fixed rent and contingent rent based upon future production of RC, each of which is payable on a quarterly basis. We
are recognizing the prepaid rent over the Initial Term of the leases. Such revenues are recorded as they are earned. Historically, the utilities at which the facilities operate have used over six million tons of coal per year, which amount can vary
based on several factors. The total annual contribution to our operating income will ultimately depend on the utilities use of coal in the generation of electricity, which use will likely fluctuate over the term of the tax credits. A portion
of the lease payments made by lessee during the Initial Term was held in an escrow account, which was established to provide a fund from which the lessee can reclaim a portion of the lease payments if certain circumstances arise that affect the
availability of Section 45 Credits for RC from the RC facilities.

Each lease may be terminated by the lessee for various reasons, the
most significant of which are:



| |  |  | For any reason as of the end of the Initial Term by giving notice by no later than July 1, 2012.
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | If the Total Operating Expenses (as defined in each lease) paid by the lessee for two consecutive quarters exceed 140% of the projected operating costs
for the RC facility.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | If any of Lessors representations or warranties were breached as of the date made and such breach is not cured within 30 days after notice.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | If a change of law, or certain other specified events affecting the availability of the Section 45 credits, occurs.
| | - |  | -------------------------------------------------------------------------------------------------------------------



| |  |  | Upon the occurrence of a governmental regulatory event that would make the contemplated transaction impermissible.
| | - |  | ------------------------------------------------------------------------------------------------------------------

In order to maintain our 50% interest in Clean Coal, we are obligated to fund half of its operating costs and capital expenditures. In order to satisfy a
portion of the 2009 capital needs of Clean Coal, Clean Coal entered into a Loan Commitment Agreement with NexGen in October 2009, by which NexGen loaned Clean Coal $1.0 million. The note was paid in full prior to April 30, 2010. In the future,
we expect the operations of the facilities to generate sufficient working capital to meet their operating needs.

We, Clean Coal and the
lessee also entered into a technology sublicense (the Technology Sublicense) pursuant to which we licensed and Clean Coal sublicensed to the lessee certain technology required to operate each RC facility and to produce RC. The Technology
Sublicense parallels the license previously granted by us to Clean Coal and requires that we stand behind Clean Coal if it fails to perform its obligations under the sublicense, other than as a result of a default by lessee. The agreement contains
representations and warranties customary for such agreements regarding intellectual property, and, subject to certain liability limits, requires us to indemnify the lessee in the event of certain infringement claims by a third party. We are also
obligated to actively prosecute infringement of the technology by third parties, or to cooperate with the lessee if it does so, in which case any award would go to the lessee and any other sublicensee who prosecutes the infringement. The annual
license fee payable to Clean Coal for the sublicense is $10,000 per year, but this amount is deductible from the amount the lessee pays in rent under the leases.

In addition, we, NexGen and two entities affiliated with NexGen have provided the lessee with joint and several guaranties (the CCS Guaranties) guaranteeing all payments and performance due
under the agreements described above. We also entered into a contribution agreement (the Contribution Agreement) with NexGen under which any party called upon to pay on a CCS Guaranty is entitled to receive contribution from the other
party equal to 50% of the amount paid. The parent of lessee provided Clean Coal with a guaranty as to the payment only of all fixed rent payments under the leases, which, although terminable at any time, cannot be terminated without the substitution
of such guaranty with another guaranty on similar terms from a creditworthy guarantor. Clean Coal signed agreements with a subsidiary of a large financial institution at the end of June 2010 to lease the two RC facilities it had previously placed in
service.

In September 2010, the RC facilities ramped up production to expected continuous levels and are now treating over 98% of the
available coal used by the four generating units at the two power plants. In the first two quarters of operation, these two units generated over $10 million in



8



---

consolidated revenues for ADA. These production levels are expected to generate between approximately $15 to $20 million per year in revenues and, after deduction of NexGens 50% share,
between approximately $7 to $10 million in pre-tax cash flow and operating income, or approximately $1 per share annually for ADA through 2019 (assuming no significant change in outstanding number of shares).

Pursuant to the American Recovery and Reinvestment Act of 2009 for qualifying RC and the Tax Relief and Job Creation Act of 2010 which extends the
placed-in-service deadline to January 1, 2012, we have taken steps to schedule the construction of six additional RC systems with a possibility of up to 16 additional RC systems before placed-in-service deadline. Thus far in 2011, Clean Coal
has issued through us purchase orders totaling approximately $3.8 million in connection with the construction of these facilities.

Carbon
Solutions

Carbon Solutions, our joint venture company with ECP, has constructed the AC Facility through its wholly owned subsidiary Red
River. The AC Facility, which achieved commercial operation in May 2010, is operating on two of the four furnaces and is expected to be capable of operation at full capacity sometime in early 2011. In the second half of 2010 the AC passed
certification testing that will allow it to be sold into the water market.

Under the terms of the Limited Liability Company Agreement (the
LLC Agreement) of Carbon Solutions among ECP and ADA, we have contributed $25.6 million in cash and other property and ECP has contributed cash of $171.6 million, including preferred equity contributions of $89.3 million, through
December 31, 2010. Effective June 2009 and since that date, ECP converted some of its preferred equity contributions to ordinary capital contributions resulting in a dilution of our ownership percentage to 25.9% as of December 31, 2010 and
as a result, we include our share of Carbon Solutions loss under the equity method of accounting. Our initial investment combined with our share of Carbon Solutions cumulative losses to date has resulted in a net investment in Carbon
Solution of $13.6 million as of December 31, 2010. We do not have any further capital commitments to Carbon Solutions, and expect that all future funding for the AC Facility will come from ECP and third-party debt financing. See Liquidity
and Capital Resources below for additional information.

Carbon Solutions predicts a significant gap between AC production and demand
beginning in 2012, with the gap growing close to a billion pounds per year after all the MACT regulations are in place by 2015. They believe that the growth anticipated will require up to five additional AC production lines of the same size and
capacity as Red River. To prepare for the additional demand created by the draft Air Toxics Rule, Carbon Solutions has permitted a second 150 million pound per year production line at the Red River plant and is pursuing permits for up to four
additional AC production plants. We have certain rights to participate by up to 50% in capacity additions.

In addition, we provide certain
services to Carbon Solutions under a Master Services Agreement (MSA). Sales and other revenues under the MSA totaled $293,000 and $1.1 million for 2010 and 2009, respectively, which amounts are included in EC revenues in the accompanying
consolidated statement of operations.

Results of Operations  2010 versus 2009

Revenues totaled $22.3 million for 2010 versus $20.1 million in 2009, representing an increase of 11%. The change is due primarily to initiation of
revenues from operations at the RC facilities we leased to a third party offset by the decrease in our EC segment revenues. We expect overall revenues for 2011 to be higher than those reported for 2010.

Cost of revenues decreased by $5.3 million or 38% in 2010 from 2009 primarily as a result of decreased revenues in our EC segment and lower RC segment
costs described below. Gross margins were 61% for the year compared to 31% in 2009. The increase primarily reflects the increased RC margins and revenues as described below. For the near term, we expect the sales related to RC segment to represent
an increasing source of revenues, for which the anticipated gross margins are higher than our EC and CC segments. As a result, we expect the gross margin for fiscal year 2011 to be higher than the overall margin realized in 2010.

Emission Control

Revenues in our EC
segment totaled $9.8 million versus $15.9 million in 2009, representing a decrease of 38%. The amounts reported for 2010 and 2009 excludes the work ADA has conducted for Clean Coal, as further described below, which was eliminated in our
consolidation. Revenues from the EC segment for the year ended December 31, 2010 were comprised of sales of ACI systems and services (56%), flue gas chemicals and services (6%) and other services (38%), compared to 66%, 2%, and 32%,
respectively, in 2009. For the near term, we expect the consulting services in our EC segment to increase as a percentage of EC revenues as the industry seeks to analyze and evaluate the probable MACT regulations in addition to increased revenues
related to our technical breakthrough related to PRB coal. We expect our EC segment revenues related to ACI systems to remain at static levels until such time as utilities, cement plants and industrial boilers start to react to the new and
anticipated MACT regulations. We expect overall gross margins for the EC segment for 2011 to be lower than levels achieved in 2010.

Our
consulting revenues decreased approximately $1.3 million during 2010 compared to 2009 as we have completed nearly all of our mercury control demonstrations and analysis. Such decline is offset by our Arch Coal non-refundable license revenue. Our
consulting revenues contributed approximately $3.6 million during 2010 and we expect our consulting revenue to increase as a percentage of EC revenues for the next year as several customers are seeking advice on how best to comply with the proposed
and finalized MACT regulations.

As of December 31, 2010, we had contracts in progress for work related to our EC segment totaling
approximately $2.9 million, of which we expect to recognize approximately 90% as revenue in 2011, with the balance to be completed and realized in 2012. Our ACI systems revenues totaled $5.5 million for 2010, representing a decrease of 48% compared
to 2009. In the EC segment, we performed work related to RC systems provided to Clean Coal valued at $3.7 million and $1.3 million for the years ended December 31, 2010 and 2009, respectively, which would otherwise be recognized as revenue but
was eliminated in the consolidation of Clean Coal.



9



---

Cost of revenues for the EC segment decreased by $3.4 million or 36% in 2010 from 2009, primarily as a
result of the decreased revenue-generating activities from our ACI system sales. Gross margins for this segment were 38% for the year compared to 40% for 2009. The decrease in gross margins from the prior year are primarily a result of the impact of
our consulting and ACI system margins as well as the elimination of $3.0 million and $1.0 million in consolidation for the years ended December 31, 2010 and 2009, respectively, related to our work on Clean Coals RC facilities.

EC segment profits decreased by $3.2 million or 60% for 2010 compared to 2009. The decrease was primarily a result of decreased ACI systems sales and
work performed for Clean Coal in the period.

CO2Capture

Revenues in our CC segment totaled $2.1 million versus $1.5 million for 2009 representing an increase of 36%. We had outstanding DOE contracts, including anticipated industry cost share in progress
totaling approximately $18.8 million as of December 31, 2010. We expect to recognize approximately $2.4 million from these contracts in 2011 including participation by other industry partners. As discussed above, on September 30, 2010 we
signed a contract on a DOE project totaling approximately $19 million (including expected contributions by other industry partners) with work ramping up in the fourth quarter of 2010.

Cost of revenues for the CC segment increased by $97,000 or 10% for 2010 from 2009, primarily from increased activities related to
our development of CO2capture technology. Gross margins for
this segment were 49% for 2010 compared to 37% for 2009. The increase in gross margins from 2010 to 2009 is due primarily to the increased work being performed under these projects. We expect overall gross margins for the CC segment for fiscal year
2011 to be lower than the levels achieved in 2010, due to the mixture of direct costs (labor versus equipment) associated with this segment.

CC segment profits increased by $546,000 or 156% for 2010 compared to 2009. The increase was primarily the result of increased activities related to our development of CO2capture technology, which ramped up significantly in 2010.

Our contracts with the government are subject to audit by the federal government, which could result in adjustment(s) to previously recognized revenue.
Our historical experience with these audits has not resulted in significant adverse adjustments to amounts previously received; however the audits for the years 2004 and later have not been finalized. Revenues recognized from 2004 through 2010 that
are subject to government audit totaled approximately $29 million. In addition, we had $18.8 million of remaining unearned amounts under contracts subject to audit as of December 31, 2010. We believe, however, that we have complied with all
requirements of the contracts and future adjustments, if any, will likely not be material. In addition, the federal government must appropriate funds on an annual basis to support DOE contracts, and funding is always subject to unknown and
uncontrollable contingencies.

Refined Coal

Revenues in our RC segment totaled $10.4 million versus $2.6 million in 2009, representing an increase of 301%, as the leased RC facilities initiated routine operations. As discussed above, in June 2010
we leased the two RC facilities and earn related rent revenues, which began in July 2010. The first two systems are expected to produce approximately 6 million tons of RC annually, which is anticipated to qualify for the present $6.27 per ton
federal tax credit through 2019. We expect our quarterly revenues to fluctuate based on seasonal variations in electricity demand as well as planned and unplanned outages required by the power plants for equipment repair and maintenance.

Cost of revenues for the RC segment decreased by $1.9 million or 57% for 2010 from 2009, primarily due to the two RC facilities ramping up production
levels in the fourth quarter of 2010. In 2009, we recorded the sales of RC which were made essentially on a cost basis with no margin. There were no similar sales in 2010 as that activity was conducted by the lessee of the facilities. Costs of
revenues are expected to stabilize as the RC facilities settle into routine operations. We expect future RC margins to be at a level near 95%.

RC segment profits increased by $9.2 million or 697% for 2010 compared to 2009 as the two facilities were leased and placed in routine operation in the
middle of 2010.

Other Items

General and administrative expenses increased by $16 million or 96% to approximately $32.8 million in 2010. The dollar increase for 2010 resulted
primarily from legal costs related to our legal proceedings with Norit and Calgon described in Part II, Item 1 of this report, which comprises approximately 75% of the overall general and administrative expense for 2010. We expect non-routine
legal costs to decrease somewhat in the first quarter of 2011, and decrease significantly starting in the second quarter of 2011 as the Norit arbitration is expected to reach its final stages. We expect other components of our G&A to increase in
2011 as we build our infrastructure in preparation for the increased market opportunities anticipated from the several MACT regulations.

We incur R&D expenses not only on direct activities we conduct but also by sharing a portion of the costs in the government and industry programs in which we participate. Total R&D expense
increased by $202,000 or 28% in 2010 compared to 2009 as a result of increases in CC and RC activities. We had no significant direct cost share for R&D under DOE related contracts in either 2010 or 2009. The increase in total R&D is related
to preparing for growth in the delivery of our ACI systems, as well as our RC activities. Future consolidated research and development expenses, except for those anticipated to be funded by the DOE contracts and others that may be awarded, are
expected to be higher in 2011 compared to 2010. We continue to anticipate that our future R&D expenses will grow in direct proportion to DOE funded CO2work we perform for the next several years and other technology development we choose to pursue.



10



---

We had net interest and other income of $8.6 million in 2010 compared to $34,000 for 2009. As discussed
below in Part I, Item 3 of this report, in December 2010, we accepted a $7.2 million payment (recognized a net of $6.1 million after payment of certain contingent legal fees) and recognized income related to the settlement of our damage claim
against Calgon. In addition, during the second quarter of 2010, we recognized approximately $1.8 million related to the notes payable delivered by NexGen, by which NexGen has paid us as a portion of the amounts required to maintain its 50% interest
in Clean Coal. Such payments have been recorded as other income. During the second half of 2010, we recognized approximately $200,000 in interest and other income related to the notes receivable and other amounts due from NexGen.

The income tax provisions for 2010 and 2009 represent an effective tax (expense) benefit rate of approximately (35%) (restated) and 37%, for the
years ended December 31, 2010 and 2009, respectively. The consolidated financial statements for the fiscal year ended December 31, 2010 have been restated to include a full valuation allowance against the net deferred tax assets as
discussed in Notes 12 and 15 of the notes to the restated consolidated financial statements. No unrecognized tax benefits were recorded as of December 31, 2010. The primary jurisdictions in which we file income tax returns are the U.S. federal
government and State of Colorado. We are no longer subject to U.S. federal examinations by tax authorities for years before 2007 and Colorado state examinations for years before 2006. Our income tax rate does not include any material amount of
Section 45 tax credits from Clean Coal as those tax benefits will primarily be realized by the lessee under the RC facilities leases.

In June 2009, our partner in the Carbon Solutions joint venture, ECP, converted a portion of its preferred equity contributions in Carbon Solutions to ordinary capital contributions thereby reducing our
ownership interest below 50%. Accordingly, we deconsolidated Carbon Solutions in June 2009 as we no longer held a controlling interest and began to account for our investment in Carbon Solutions under the equity method of accounting. Additional
preferred equity contributions have been converted and common equity contributions have been made by ECP since that time and our interest in Carbon Solutions has been decreased to 25.9% as of December 31, 2010. Our net investment of $13.6
million as of December 31, 2010 in Carbon Solutions is accounted for under the equity method of accounting. Accordingly, our equity in the net loss of Carbon Solutions for the year ended December 31, 2010 has been recognized in other
income (expense) in the consolidated statement of operations and our investment in Carbon Solutions has been reduced by our respective share of such loss. For the year, we recorded a loss of $8.0 million, which represents our share of Carbon
Solutions net loss for the year. The amount is reported net of our equity in the net income of CCSS which amounted to $118,000 for the year.

The net operating loss from continuing operations was $21 million or $2.84 per share in 2010 compared to a net operating loss of $11.8 million or $1.69 per share, respectively in 2009. The net operating
loss is due in large part to the costs associated with our litigation matters involving Norit and Calgon and the losses incurred by Carbon Solutions. We expect to continue to report equity in loss of Carbon Solutions for 2011 and future years as
sales ramp up and other development activities continue. We expect to continue to report our equity in the net income of CCSS for 2011 as routine operations are anticipated for the year. We would have a net income after tax of approximately $5.1
million or $0.69 per share for the year excluding the non-routine legal expenses related to the Calgon and Norit matters and disregarding the deferred tax asset valuation allowance and the non-cash loss from Carbon Solutions. With the expected
reduction in non-routine legal expenses in the second quarter of 2011 and thereafter, we should be in a position, apart from the losses we pick up from Carbon Solutions, to achieve very attractive levels of profitability.

Results of Operations  2009 versus 2008

Revenues totaled $20.1 million for 2009 versus $16.2 million in 2008, representing an increase of 24% primarily due to the tests related to placing Clean Coals two facilities in service. Cost of
revenues increased by $3 million or 27% in 2009 from 2008 primarily as a result of increased revenues. Gross margins were 31% for the year compared to 33% in 2008. The decrease primarily reflects the decrease in margins for the RC segment as
described below.

Emission Control

Revenues in our EC segment for 2009 increased by $12,000 versus 2008. Revenues in 2009 from the EC segment were comprised of sales of ACI systems and services (66%), flue gas chemicals and services (2%),
and other services (32%), compared to 58%, 3% and 39%, respectively, in 2008. In 2009, sales of our ACI systems contributed $10.6 million to EC revenues recognized for the year, increasing 13% from the 2008 contribution of $9.4 million.

Revenues from consulting services included in the EC segment increased approximately $3.3 million, from 2008 to approximately $5 million in 2009 which
were net of eliminated revenues totaling $1.3 million related to our efforts to construct RC facilities for Clean Coal. The change for the year resulted primarily from two mercury control programs that commenced and were largely completed in 2008
offset by increased activity with current and new test programs that commenced during 2009.

Cost of revenues for the EC segment decreased by
$1.3 million in 2009 or 12%, primarily from decreased activity in our government and industry supported mercury contracts and other consulting services, offset by cost saving activities related to our ACI system sales. Cost of revenues was reduced
by $1.0 million related to the eliminated revenues described above in connection with our construction of RC facilities for Clean Coal. Gross margins for the EC segment were 40% in 2009 compared to 32% in 2008. The increase was primarily due to the
increased margins related to our ACI system sales as a result of the implementation of our improved modular ACI equipment design, which broadens fabrication and material supply options, simplifies field installation and reduces system costs and
increased margins in our emission strategy consulting services as a result of higher utilization of labor on such projects.

EC segment
profits increased by $3.4 million or 170% to $5.3 million compared to 2008. The increase was primarily a result of increased EC segment revenues from our ACI systems offset by our decline in DOE and industry supported mercury revenues.

The remaining unearned amount on outstanding contracts in our EC segment was $7.3 million as of December 31, 2009. During 2008, government funded
work for mercury demonstration projects diminished significantly as the market moved into a commercial phase.



11



---

Our contracts with the government are subject to audit by the federal government, which could result in
adjustment(s) to previously recognized revenue. We believe, however, that we have complied with all requirements of the contracts and future adjustments, if any, will not be material. In addition, the federal government must appropriate funds on an
annual basis to support DOE contracts, and funding is always subject to unknown and uncontrollable contingencies.

CO2Capture

Revenues in our CC segment were $1.5 million in 2009, primarily from our one
CO2contract representing an increase of $1.3 million or 491%
versus 2008. In 2009, we increased testing and research on our first significant project related to CO2demonstration work sponsored by the DOE which initially began late 2008.

Costs of revenues for
the CC segment were $969,000 in 2009 which represents an increase of $861,000 or 797% versus 2008. As 2009 was the beginning of significant efforts in carbon capture, largely under our contracts with DOE. Gross margins for the CC segment were 36% in
2009 compared to 58% primarily due to the timing of revenue recognized with industry supported costs share participants in 2008.

CC segment
profits increased by $199,000 in 2009 or 133% versus 2008, which was consistent with our revenue efforts in carbon capture.

Refined Coal

Revenues in our RC product in 2009 (primarily for the tests related to placing Clean Coals two facilities in service) amounted to
approximately $2.6 million. Prior to the fourth quarter of 2009, we did not have any prior revenue generating activities to report for this segment.

Cost of revenues for our RC segment totaled $3.4 million in 2009, primarily for the tests related to placing Clean Coals two facilities in service and other start up activities related to the
segment. In 2008, we did not have any significant direct costs associated with this segment.

RC segment loss was $1.3 million in 2009 and
represents activities related to placing the first two RC facilities into service.

Other Items

General and administrative expenses increased by $7.6 million or 83% to $16.7 million in 2009. The dollar increase in 2009 resulted primarily from the
increased legal fees due to litigation efforts (approximately $9.6 million) and increased corporate governance costs $384,000, offset by savings in personnel costs $868,000 and occupancy and other general and administrative costs $733,000. Included
in our general and administrative expenses was approximately $251,000 related to share based compensation. In 2009, we curtailed hiring personnel in response to the then delayed regulatory environment.

We incur R&D expenses not only on direct activities we conduct but also by sharing a portion of the costs in the government and
industry programs in which we participate. Total R&D expense decreased by $75,000 or 10% in 2009 compared to 2008. Our direct cost share for R&D under DOE related contracts decreased from $30,000 in 2008 to $1,000 in 2009, reflecting the
anticipated decrease in our cost share contribution and the overall decrease in mercury related demonstrations that we carried out during the year. The decrease is somewhat offset by increased activities related to preparing for growth in the
delivery of our ACI systems, as well as our RC activities. Our future R&D expenses are expected to grow in direct proportion to DOE funded CO2work we perform for the next several years.

We had net interest and other income of $34,000 in 2009 compared to $439,000 for 2008. The interest income was earned from our money market deposits. We anticipated interest income to decline in 2009 due
to a combination of lower invested balances and lower interest rates compared to prior years.

The income tax provision for 2009 represents an
effective tax rate benefit of approximately 37%, which is more than the rate benefit of 27% we recognized for 2008. The increase is primarily the result of the change in permanent book and tax differences, which included a $1.6 million goodwill
impairment charge to book income in 2008. All other permanent differences were less than 1% for both 2009 and 2008. We adopted the provisions of FASB ACS 740 on January 1, 2007. No unrecognized tax benefits were recorded as of the date of
adoption. The primary jurisdictions in which we file income tax returns are the U.S. federal government and State of Colorado. We are no longer subject to U.S. federal examinations by tax authorities for years before 2006 and Colorado state
examinations for years before 2005.

In June 2009, our partners in the Carbon Solutions joint venture, ECP, converted a portion of its
preferred equity contributions in Carbon Solutions to ordinary capital contributions thereby reducing our ownership interest below 50%. Accordingly, we deconsolidated Carbon Solutions in June 2009 and began to account for our investment in Carbon
Solutions under the equity method of accounting. Under the equity method of accounting, we record our equity in the net income or loss of Carbon Solutions as a component of Other Income (Expense) in our financial statements. For the year
ended December 31, 2009, we recorded a loss of $3.2 million, which represents our share of Carbon Solutions net loss for the same period.

Our operating loss from continuing operations was $11.8 million in 2009 compared to a loss of $6.7 million in 2008, due in large part to the costs associated with our litigation matters involving Norit
and Calgon and those related to the Companys growth initiatives for RC. We would have had a net income after tax of approximately $18,000 or less than $0.01 per share in 2009 if we did not incur the non-routine legal expenses related to the
Calgon and Norit matters and disregarding the non-cash loss from Carbon Solutions.



12



---

Liquidity and Capital Resources

Our principal source of liquidity in 2010 was our working capital, our cash flow from RC activities, proceeds from settlement of litigation matters and other operations. We had consolidated cash and cash
equivalents totaling $9.7 million at December 31, 2010 compared to consolidated cash and cash equivalents of $1.5 million at December 31, 2009.

At December 31, 2010, we had working capital of $9.9 million (restated), which includes a reduction of $188,000 attributable to the recognition of a valuation allowance against the Companys net
deferred tax assets, compared to $2.2 million at December 31, 2009. We have long-term liabilities recorded totaling $31.8 million for our accrued warranty, long-term deferred revenue, including deferred rental income, and other obligations of
$4.4 million and indemnity costs related to the Norit Action of $27.4 million as of December 31, 2010. Although we had positive operating cash flow for the year ended December 31, 2010, this trend may not continue in 2011, due to expected
resolution of the indemnity costs as the Norit Action is resolved. Expansion of efforts related to our Clean Coal joint venture and preparation for the market opportunities expected from the MACT regulations will also likely require additional
investments in 2011.

The increase in working capital during 2010 resulted primarily from:



| |  |  | $2 million payment received, net of deferred amounts, for the exclusive licensing of technology to Arch Coal,
| | - |  | -------------------------------------------------------------------------------------------------------------



| |  |  | $1 million from the sale of our Common Stock to Arch Coal,
| | - |  | ----------------------------------------------------------



| |  |  | $2.1 million in equity contributions to Clean Coal by NexGen,
| | - |  | -------------------------------------------------------------



| |  |  | Prepaid rents received and other rentals earned related to the lease of Clean Coals RC facilities, net of current deferred revenues, and
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | $6.1 million from the settlement of the Calgon litigation which amount is net of related contingent legal fees associated with the settlement
structure.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------

The above were offset by decreases in cash and cash equivalents which included:



| |  |  | $3.7 million in cash distributed by Clean Coal to NexGen and
| | - |  | ------------------------------------------------------------



| |  |  | $2.9 million in capital expenditures including those improvements made by Clean Coal to the RC facilities that were subsequently leased.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------

Our stockholders deficit is approximately $2.2 million (restated) as of December 31, 2010 compared to
stockholders equity of $24.4 million as of December 31, 2009. The decrease is primarily due to the net operating loss for the year and the recording of a valuation allowance against the Companys net deferred tax assets (see Note 15
for the effect of the restatement on stockholders equity (deficit)).

To provide flexibility in the capital markets, we filed a
universal shelf registration statement with the SEC on January 28, 2011 and, when declared effective by the SEC, this registration would give us the ability to offer and sell up to $140 million of securities consisting of common stock,
preferred stock, warrants, units or a combination thereof. After the shelf registration becomes effective, we may offer and sell such securities from time to time and through one or more methods of distribution, subject to market conditions, for our
capital needs and regulatory requirements. The terms of any offering under the shelf registration statement will be established at the time of such offering and will be described in a prospectus supplement filed with the SEC prior to completion of
the offering.

Carbon Solutions has funded, through loans and/or equity contributions from ECP to Carbon Solutions, a significant portion of
the legal expenses related to the Norit Action. We have not recorded any accrued indemnity obligations to ECP, and we are unable to estimate the total amount of any future indemnity obligations to Carbon Solutions or ECP at this time. ECP has
notified us that it believes such obligations include any losses it suffers due to its loss of potential customers and diminution in the value of its businesses, the costs and fees it has incurred and will continue to incur, and any damages it may
suffer as a result of a lawsuit Norit N.V. has filed against ECP in state court in New Jersey. Satisfaction of any indemnity obligations to ECP, as discussed above, may be made via a decrease in our recorded capital contributions (and with a
corresponding increase in ECPs capital contributions) in Carbon Solutions and adjustment of each partys percentage ownership accordingly.

We may also require additional working capital to meet our 50% share of capital expenditures and working capital requirements of Clean Coal as it constructs additional RC facilities to qualify for
Section 45 tax credits which Clean Coal expects to finance through a $10 million credit facility expected to be in place in early 2011.

Our ability to generate the financial liquidity required to meet ongoing operational needs and to meet our current and future indemnification obligations
to Carbon Solutions and potentially to ECP, will likely depend upon several factors, including our ongoing legal expenses incurred by the parties in the Norit matters, timing of satisfaction and ultimate amount of the Indemnity Obligations and
insurance coverage with respect to the Norit matters, our ability to maintain a significant share of the market for mercury control equipment, Clean Coals continued operation of the two RC facilities placed in service in 2010 and success in
monetizing Section 45 tax credits through the sale or lease of additional facilities to third party investors. Consequently, we may not have sufficient working capital to fund all these obligations in the event we are called upon to do so. We
believe we could, if need be, defer some of the growth initiatives or reduce expenses, or both, if necessary to fund operations through at least December 31, 2011.

Clean Coal Related Items

Clean Coal, our 50% joint venture with NexGen, has placed two RC
production facilities into service, which have been leased to a third party. Based on the amount of RC that we expect will be produced from the RC facilities, we expect to recognize pre-tax tax cash flows between $7 million to $10 million per year
through 2019, the expected period for which Section 45 tax credits are available for these facilities.



13



---

NexGen has elected to retain its interest in Clean Coal by paying us up to $4 million (plus any accrued
interest under the notes described below) as follows: (a) $1.8 million under NexGens two-year promissory notes issued to us in June 2010, plus (b) 25% of cash distributions (other than for income taxes) due to NexGen from Clean Coal.
NexGens promissory notes are shown as notes receivable, bear interest at 5% per annum, are payable out of 35% of cash distributions to NexGen and are secured by NexGens interest in Clean Coal. We expect to receive payments from
NexGen based upon a portion of cash distributed to NexGen from Clean Coal, with a portion of that amount to be applied as payment on the notes and any additional amounts to be applied to the remainder of the total $4 million expected to be paid by
NexGen, which payments are expected by the end of 2011. We expect to report these amounts upon receipt as other income. NexGen is not obligated to make those payments, but if it does not do so, it will forfeit a part of its interest in Clean Coal in
direct proportion to the amount that it elects not to pay (including any election not to pay under any notes issued). Once it fails to make any one payment, it cannot reclaim its interest by making later payments. We are not required to refund any
of the cash paid by NexGen. In addition, we, NexGen and two entities affiliated with NexGen have provided Clean Coals sublessee with joint and several guaranties guaranteeing any payments and performance due the lessee under the various
agreements Clean Coal executed in the lease of the RC facilities.

AC Facility Related Items

As noted above, Carbon Solutions has commenced commercial operations at its AC Facility, which has an estimated all-in, total cost for one production line
capable of producing approximately 150 million pounds of AC per year of including related activities of approximately $400 million. Red River has received a conditional commitment for up to $245 million from the DOE to guarantee a loan related
to the costs of construction of the AC Facility.

In order to address the anticipated capital needs of Carbon Solutions, ECP may fund
additional ordinary capital contributions or preferred equity contributions to Carbon Solutions or make loans to Red River, in each case at such times and in such amounts as ECP determines are necessary to satisfy their capital requirements. Neither
ADA nor ECP is required to fund additional capital contributions to Carbon Solutions at this time. In October 2008, the Company entered into a Securities Purchase Agreement (SPA) providing for the potential sale to ECP of 1,800,000
shares of Series A Convertible Preferred Stock and 1,800,000 shares of Series B Convertible Preferred Stock. The Company terminated the SPA on March 23, 2010. One-half of ECPs preferred equity bears a preferred return of 12% per
annum, and the other half does not bear a preferred return. ECP is entitled to receive priority distributions on its preferred equity until it is redeemed or converted and has the option to convert any such unredeemed preferred equity into ordinary
capital contributions.

Pursuant to an Amended and Restated Credit and Reimbursement Agreement among Red River, ECP and us dated as of
September 2, 2009 and related documents (the Carbon Solutions Credit Support Documents), ECP may make loans to Red River from time to time. As of December 31, 2010, the principal balance of ECPs loans to Red River
totaled approximately $193.8 million. Such loans are evidenced by convertible demand promissory notes bearing interest at 12% per annum compounded quarterly. ECP may convert any outstanding amounts due under such notes to ordinary capital or
preferred equity contributions in Carbon Solutions at any time at its option. The outstanding loans are secured by Red Rivers assets and guaranteed by Carbon Solutions, and Carbon Solutions guaranty is secured by a pledge of Carbon
Solutions equity in Red River. If and when Carbon Solutions is able to place long-term commercial debt, we expect a significant portion, if not all, of its outstanding loans from ECP to be replaced by such debt.

As of December 31, 2010, ECP had outstanding preferred equity in Carbon Solutions totaling approximately $89.3 million, all of which is convertible
to ordinary capital contributions. In 2009 and subsequently, ECP has converted some of its then outstanding preferred equity to ordinary capital contributions and made additional ordinary capital contributions, resulting in dilution of our ownership
interest in Carbon Solutions to 25.9% as of December 31, 2010. Because of such dilution to date, ECP now elects three out of the four managers of the Board of Carbon Solutions and controls decisions of the Board. Through March 1, 2011, ECP
had contributed cash of $171.6 million to Carbon Solutions and had loaned $193.8 million to Red River. We continue to have the right to participate in significant decisions subject to member approval so long as we continue to hold at least a 15%
ownership interest. Member approval requires approval of members holding at least 75% of the ownership interests.

In addition to our
indemnity obligations described above, we have given guaranties and undertaken other commitments of approximately $30 million related to Carbon Solutions. No liabilities associated with such guaranties and obligations were recorded on our financial
statements as we do not expect the guaranties and commitments to be called upon. Pursuant to the Carbon Solutions Credit Support Documents, Red River has agreed to reimburse us and ECP in the event we or they are required to make payments
related to these guaranties and guaranties provided by ECP. Red Rivers reimbursement obligations are secured by Red Rivers assets and guaranteed by Carbon Solutions, and Carbon Solutions guaranty is secured by a pledge of Carbon
Solutions equity in Red River. We assigned our rights under these agreements to ECP, and any amounts payable to us would be paid directly to ECP until ECPs preferred equity in Carbon Solutions is fully redeemed or converted and all loans
to Red River have been paid in full.



Other Liquidity and Capital
Resource Items

Our trade receivables balance is comprised of both amounts billed to customers as well as unbilled revenues that have been
recognized. As of December 31, 2010 our trade receivables balance was $9.1 million, which was offset by billings in excess of recognized income of $452,000 for a net of $8.6 million compared to $4.5 million at December 31, 2009. Our trade
receivables balance was higher at December 31, 2010 compared to 2009, primarily due to the RC facilities rent earned during the quarter ended December 31, 2010 and not collected until the first quarter of 2011, and due to the nature and
timing of our billing milestones for our ACI systems contracts.

As discussed above, we have recorded approximately $27.4 million in
potential indemnity obligations to Carbon Solutions related to the Norit Action. These accrued expenses have resulted in the increase in accrued long-term liabilities in 2010. Our net accrued warranty obligations have increased by $8,000, related to
our increase in related ACI projects.



14



---

Under our defined contribution and 401(k) retirement plan, in 2010 and 2009 we matched up to 7% of salary
amounts deferred by employees in the Plan. During 2010 we recognized $282,000 of matching expense which payment was made with our stock, while in 2009, we recognized $267,000 of matching expense the payments for which were made in both cash and our
stock. In the past, we have also made discretionary contributions to the Plan for employees, however in 2010 and 2009, we did not make any such discretionary contributions. Our matching expense is expected to amount to $300,000 for 2011 depending on
employee participation in the plan.

We had recorded net current deferred tax assets of $188,000 and net long-term deferred tax assets of
$15.4 million as of December 31, 2010 compared to net current deferred tax asset of $271,000 and net long-term deferred tax assets of $6.8 million as of December 31, 2009. The current and long-term amounts for 2010 have subsequently been
reduced to zero by recording a full valuation allowance. As discussed above and in Notes 12 and 15 to the restated consolidated financial statements, in August 2012, after extensive discussions with the SECs Division of Corporation Finance and
Office of the Chief Accountant and the Companys outside tax experts, independent registered public accounting firm, Audit Committee and Board of Directors, management determined that a full valuation allowance against the Companys net
deferred tax assets should have been recognized as of December 31, 2010 and for each subsequent quarter thereafter. Management determined that it was necessary to record the valuation allowance against the Companys deferred tax assets
after reconsidering the weight given in the original assessment to the relevant information used to measure the positive and negative evidence regarding the potential for ultimate realization of the deferred tax assets.

Cash flow provided by operations totaled $11.7 million for 2010 compared to cash flow used in operations of $1.6 million in 2009. The change in operating
cash flow primarily resulted from an increase in deferred revenues and other liabilities of $7.7 million, an increase in our accrued indemnity liability of $20.6 million and a decrease in prepaid and other assets of $288,000, which were offset by a
decrease in our accounts payable of $1.7 million and an increase in receivables of $3.2 million. These changes in our operating assets and liabilities correspond to the nature and timing of our procurement and billing cycle and development
activities. In addition, adjustments related to our net loss of $31.1 million (restated) for non-cash operating activities, which included expenses paid with stock and restricted stock of $1.3 million, depreciation and amortization of $917,000,
non-controlling interest in Clean Coal of $3.6 million our net minority equity interest in the net income/loss of unconsolidated entities of $8 million and a net deferred tax expense of $7.1 million (restated) which includes the establishment of a
full valuation allowance for deferred tax assets as described above and in Note 15 to the restated consolidated financial statements, all of which increased our cash flow used in operations during 2010.

Net cash used by investing activities was $3.1 million for 2009 compared to $25.9 million for 2009. The cash used consisted of investments in short term
paper of $105,000 and purchases of equipment of $2.9 million. Offsetting cash provided by investing activities consisted of payments received from NexGen related to their note receivable to us. The 2009 cash used of $25.9 million was primarily
related to the deconsolidation of Carbon Solutions.

Cash used by financing activities was $356,000 in 2010 compared to cash provided by
financing activities of $725,000 in 2009. Cash provided during 2010 consisted of $2.1 million in capital contributions by the non-controlling interest in Clean Coal and the sale of stock for proceeds totaling $1 million and the exercise of stock
options totaling $347,000. Uses of cash consisted of the distribution by Clean Coal to the non-controlling interest.

We had the following
contractual commitments as of December 31, 2010:



|                            |  |                       |         |  |      |   |         |              |  |   |              |  |  |                |   |  |  |   |   | 
|--------------------------- |  | --------------------- | ------- |  | ---- | - | ------- | ------------ |  | - | ------------ |  |  | -------------- | - |  |  | - | - | 
|                            |  | Payment due by period |        
|                            |  | Total                 |         |  | 2011 |   |         | 2012 and2013 |  |   | 2014 and2015 |  |  | 2016 andBeyond |  
|Purchase obligations        |  | $                     | 433,000 |  |      | $ | 433,000 |              |  | $ | 0            |  |  | $              | 0 |  |  | $ | 0 | 
|Operating lease obligations |  |                       | 402,000 |  |      |   | 240,000 |              |  |   | 162,000      |  |  |                | 0 |  |  |   | 0 | 
|                            |  |                       |         |  |      |   |         |              |  |   |              |  |  |                |   |  |  |   |   | 
|Total                       |  | $                     | 835,000 |  |      | $ | 673,000 |              |  | $ | 162,000      |  |  | $              | 0 |  |  | $ | 0 | 
|                            |  |                       |         |  |      |   |         |              |  |   |              |  |  |                |   |  |  |   |   | 

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements except for the operating leases disclosed above and the commitments and contingencies disclosed in Note 9 of our consolidated financial statements
contained in Item 8 of this Annual Report.

Critical Accounting Policies and Estimates (restated)

Revenue Recognition  We follow the percentage of completion method of accounting for all significant contracts excluding government contracts,
chemical sales, technology license and related royalties, and RC leases. The percentage of completion method of reporting income takes into account the estimated costs to complete and estimated gross margin for contracts in progress. We recognize
revenue on government contracts generally based on the time and expenses incurred to date. We are recognizing revenue from the Arch Coal license over the estimated time for which Arch Coal expects to recoup its investment in the technology and the
related royalties will be recognized when earned. RC base rents, which are fixed, are recognized over the life of the lease. Contingent rents are recognized as they are earned.

Significant estimates are used in preparation of our financial statements and include:



| |  |  | our allowance for doubtful accounts, which is based on historical experience;
| | - |  | -----------------------------------------------------------------------------



| |  |  | our warranty costs;
| | - |  | -------------------



| |  |  | our percentage of completion method of accounting for significant long-term contracts, which is based on estimates of gross margins and of the costs to
complete such contracts; and
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the period over which we estimate we will earn up-front license payments.
| | - |  | -------------------------------------------------------------------------



15



---

In addition, amounts invoiced for government contracts are subject to change based on the results of future
audits by the federal government. We have not experienced significant adjustments in the past, and we do not expect significant adjustments will be required in the future. We also use our judgment to support the current fair value of goodwill and
other intangible assets of $695,000 on the consolidated balance sheets. Management believes the value of other recorded intangibles is not impaired, although market demand for our products and services could change in the future, which would require
a write-down in recorded values. As with all estimates, the amounts described above are subject to change as additional information becomes available, although we are not aware of anything that would cause us to believe that any material changes
will be required in the near term.

Under certain contracts we may grant performance guaranties or equipment warranties for a specified period
and the achievement of certain plant operating conditions. In the event the equipment fails to perform as specified, we are obligated to correct or replace the equipment. Estimated warranty costs are recorded at the time of sale based on current
industry factors. The amount of the warranty liability accrued reflects our best estimate of expected future costs of honoring our obligations under the warranty section of each contract. We believe the accounting estimate related to warranty costs
is a critical accounting estimate because changes in it can materially affect net income, it requires us to forecast the amount of equipment that might fail to perform in the future, and it requires a large degree of judgment.

Income taxes are accounted for under the asset and liability approach. Under this method, deferred tax assets and liabilities are recognized for the
expected future tax consequences of differences between the carrying amounts of assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect on
deferred tax assets and liabilities of a change in tax rates is recognized in income in the period when the change is enacted. At each reporting date, management reviews deferred tax assets and liabilities and any related valuation allowance and, if
necessary, revises them to reflect changed circumstances. In a situation where recent losses have been incurred, the accounting standards require convincing evidence that there will be sufficient future taxable income to realize deferred tax assets.
Deferred tax assets have been reduced to zero by a valuation allowance because, in the opinion of management, it is more likely than not that all of the deferred tax assets will not be realized. A change in laws can have a material effect on the
amount of income tax we are subject to. We are not aware of anything that would cause us to believe that any material changes will be required in the near term.

We recognize all share-based payments, including grants of stock options, restricted stock units and employee stock purchase rights in our financial statements based upon their respective grant date fair
values. Under this standard, the fair value of each employee stock option and employee stock purchase right is estimated on the date of grant using an option pricing model that meets certain requirements. We currently use the Black-Scholes option
pricing model to estimate the fair value of our stock options and stock purchase rights. The Black-Scholes model meets the requirements of FASB Topic 718 but the fair values generated by the model may not be indicative of the actual fair values of
our equity awards, as it does not consider certain factors important to those awards to employees, such as continued employment and periodic vesting requirements. The determination of the fair value of share-based payment awards utilizing the
Black-Scholes model is affected by our stock price and a number of assumptions, including expected volatility, expected life and risk-free interest rate. We use a historical volatility rate on our stock options. The fair value of our restricted
stock is based on the closing market price of our Common Stock on the date of grant. If there are any modifications or cancellations of the underlying securities, we may be required to accelerate, increase or cancel any remaining unearned
stock-based compensation expense. To the extent that we grant additional equity securities to employees or we assume unvested securities in connection with any acquisitions, our stock-based compensation expense will be increased by the additional
unearned compensation resulting from those additional grants or acquisitions.

Consolidation of Subsidiaries  Our equity partner in
Carbon Solutions, ECP, contributed equity capital significantly in excess of our contributions. We expect that our ownership percentage may be further diluted below the 25.9% existing as of December 31, 2010 and that we will continue recording
our interest under the equity method.

Our equity partner in Clean Coal, NexGen, must pay us up to $4 million to maintain its 50% interest in
Clean Coal for which it has issued notes payable to us evidencing a portion of that amount as described above. Since inception, ADA has been considered the primary economic beneficiary of the joint venture with Clean Coal and, therefore, we have
consolidated its accounts with ours.

We hold a 50% interest in CCSS. However, we control only two of the five seats on the board of managers
and our equity partner controls the other three seats. Therefore, we believe our 50% interest does not constitute control of CCSS and we have recorded our interest under the equity method.

Recently Issued Accounting Policies

No pronouncements have been issued which would have a
significant impact on us.



Item 8. Financial Statements and
Supplementary Data (restated).

Our Financial Statements can be found at pages F-1 through F-24 of this report.



|                                                                                                            |  |  |     | 
|----------------------------------------------------------------------------------------------------------- |  |  | --- | 
|Index to Financial Statements                                                                               |  |  | F-1 | 
|Report of Independent Registered Public Accounting Firm                                                     |  |  | F-2 | 
|Financial Statements:                                                                                       |  |  |     | 
|ADA-ES, Inc. and Subsidiaries                                                                               |  |  |     | 
|Consolidated Balance Sheets, December 31, 2010 and 2009                                                     |  |  | F-3 | 
|Consolidated Statements of Operations, For the Years Ended December 31, 2010 and
2009                       |  |  | F-4 | 
|Consolidated Statements of Changes in Stockholders Equity, For the Years Ended December 
31, 2010 and 2009 |  |  | F-5 | 
|Consolidated Statements of Cash Flows, For the Years Ended December 31, 2010 and
2009                       |  |  | F-6 | 
|Notes to Consolidated Financial Statements                                                                  |  |  | F-7 | 



16



---

Item 9A. Controls and Procedures (restated).

We conducted an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial
Officer, of the effectiveness of the design and operation of our disclosure controls and procedures. The term disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, means controls and
other procedures of a company that are designed to ensure that information required to be disclosed by the company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods
specified in the Securities and Exchange Commissions rules and forms. Disclosure controls and procedures also include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the
reports that it files or submits under the Exchange Act is accumulated and communicated to the companys management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to
allow timely decisions regarding required disclosure. Management necessarily applied its judgment in assessing the costs and benefits of such controls and procedures, which, by their nature, can provide only reasonable assurance regarding
managements control objectives.

Evaluation of Disclosure Controls and Procedures

When our Annual Report on Form 10-K for the fiscal year ended December 31, 2010 was filed on March 28, 2011, our Chief Executive Officer and
Chief Financial Officer concluded that our disclosure controls and procedures were effective as of December 31, 2010. Subsequent to that evaluation, our management identified an error related to the establishment and maintenance of a valuation
allowance against deferred tax assets, as discussed below. This error had a material effect on the Companys previously issued consolidated financial statements. As a result of this error, we determined that the consolidated financial
statements for the fiscal years ended December 31, 2010 and 2011 and the quarters ended March 31, 2011, June 20, 2011, September 20, 2011, March 31, 2012 and June 30, 2012 should not be relied upon and
needed to be restated (see Note 15 in the accompanying restated consolidated financial statements for further discussion) and identified the material weakness described below.

Managements Report on Internal Control Over Financial Reporting

Our management is
responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15(d)-15(f)) is defined as a process designed by, or
under the supervision of, a companys principal executive and financial officers, or persons performing similar functions, and effected by a companys board of directors, management and other personnel, to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of financial statements for external reporting purposes in accordance with generally acceptable accounting principles and includes those policies and procedures that:
(a) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (b) provide reasonable assurance that transactions are recorded as
necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors
of the company; and (c) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the companys assets that could have a material effect on the financial statements.

A material weakness is a control deficiency, or combination of control deficiencies, that result in more than a remote likelihood that a
material misstatement of annual or interim financial statements will not be prevented or detected. Our management assessed our internal control over financial reporting as of December 31, 2010. Management based its assessment on criteria set
forth in the framework in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.

This annual report does not include an attestation report of the Companys independent registered public accounting firm regarding internal control over financial reporting. Managements report
was not subject to attestation by the Companys independent registered public accounting firm pursuant to temporary rules of the Securities and Exchange Commission that permit the Company to provide only managements report in this annual
report.

Changes in Internal Control over Financial Reporting

In connection with the identification of the error to our financial statements described above and in Note 15 to our restated consolidated financial statements, management has identified the following
deficiency that constituted a material weakness in our internal control over financial reporting for the periods described above:



| |  |  | We did not establish adequate criteria to assess positive and negative evidence over the establishment and maintenance of a valuation allowance against
deferred tax assets and an appropriate review process over the inputs and conclusions from this assessment was not in place.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Accounting errors resulting from the material weakness described above resulted in the need to restate our annual and interim consolidated financial
statements.



17



---

Remediation of Material Weakness

By establishing a valuation allowance against the Companys deferred tax assets, management believes that the material weakness which had previously existed with respect to the deferred tax assets
has been fully remediated. To ensure that such an issue does not arise again in the future, the Company is in the process of creating a formal process related to the design and implementation of controls and establishment of adequate criteria to
assess the positive and negative evidence over the establishment and maintenance of a valuation allowance against deferred tax assets. Management anticipates that this process will include periodic oversight by the Audit Committee and anticipates
completing this remediation effort before the Annual Report on Form 10-K for the fiscal year ending December 31, 2012 is filed.

We will
continue to monitor the effectiveness of our internal control over financial reporting in the areas affected by the material weakness described above and employ any additional tools and resources as appropriate to provide reasonable assurance that
our financial statements are fairly stated in all material respects.

As previously disclosed, there were no changes in our internal control
over financial reporting during the quarter ended December 31, 2010 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. As described above, we have taken steps subsequent
to the period covered by this Amendment to remedy the material weakness in our internal control over financial reporting.

PART IV

Item 15. Exhibits and Financial Statement Schedules (restated).



|(a) | The following documents are filed as part of this Annual Report on Form 10-K:
|--- | -----------------------------------------------------------------------------



| | (1) | Financial Statements  see Part II, Item 8, which is incorporated herein by this reference;
| | --- | -------------------------------------------------------------------------------------------



| | (2) | Financial Statement Schedules  None required or applicable; and
| | --- | ----------------------------------------------------------------



| | (3) | Exhibits  as described in the following index.
| | --- | -----------------------------------------------

Index to Exhibits



|      |  |                                                                                                                                                                                                               
|----- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|No.   |  | Description                                                                                                                                                                                                   
|      | 
|3.1   |  | Amended and Restated Articles of Incorporation of ADA-ES (1)                                                                                                                                                  
|      | 
|3.2   |  | Second Amended and Restated Bylaws of ADA-ES (2)                                                                                                                                                              
|      | 
|4.1   |  | Form of Specimen Common Stock Certificate (3)                                                                                                                                                                 
|      | 
|4.2   |  | Registration Rights Agreement dated October 21, 2005 (4)                                                                                                                                                      
|      | 
|4.3   |  | Registration Rights Agreement between ADA-ES, Inc. and Arch Coal, Inc. dated March 19, 2003 (5)                                                                                                               
|      | 
|4.4   |  | Standstill and Registration Rights Agreements dated August 3-6, 2004 (6)                                                                                                                                      
|      | 
|4.5   |  | Registration Rights Agreement among ADA-ES, Inc., Perella Weinberg Partners Oasis Master Fund L.P., Black River Commodity Select Fund and Black River Small Capitalization Fund Ltd.
dated August 26, 2008 (7)
|      | 
|4.6   |  | ADA-ES, Inc. Profit Sharing Retirement Plan Adoption Agreement (8)                                                                                                                                            
|      | 
|4.7   |  | American Funds Distributors, Inc. Nonstandarized 401(K) Plan (9)                                                                                                                                              
|      | 
|4.8   |  | American Funds Distributors, Inc. Defined Contribution Prototype Plan and Trust (10)                                                                                                                          
|      | 
|4.9   |  | Amended ADA-ES, Inc. Plan Policy Document (35)                                                                                                                                                                
|      | 
|4.10  |  | Employer Stock Addendum to Trust Agreement (11)                                                                                                                                                               
|      | 
|4.11  |  | Registration Rights Agreement between ADA-ES, Inc. and Arch Coal, Inc. dated March 23, 2010 (12)                                                                                                              
|      | 
|10.2  |  | 2003 ADA-ES, Inc. Stock Option Plan** (13)                                                                                                                                                                    
|      | 
|10.13 |  | 2003 Stock Compensation Plan #1** (14)                                                                                                                                                                        
|      | 
|10.14 |  | 2003 Stock Compensation Plan #2** (15)                                                                                                                                                                        
|      | 
|10.21 |  | ADA-ES, Inc. 2004 Executive Stock Option Plan** (16)                                                                                                                                                          
|      | 
|10.23 |  | Employment Agreement dated May 1, 1997 between C. Jean Bustard and ADA Environmental Solutions, LLC (assigned to ADA-ES, Inc.) ** (17)                                                                        
|      | 
|10.24 |  | Employment Agreement dated May 1, 1997 between Michael D. Durham and ADA Environmental Solutions, LLC (assigned to ADA-ES, Inc.) ** (17)                                                                      
|      | 
|10.25 |  | Employment Agreement dated January 2, 2000 between Mark H. McKinnies and ADA Environmental Solutions, LLC (assigned to ADA-ES, Inc.) ** (17)                                                                  
|      | 
|10.26 |  | Employment Agreement dated January 1, 2000 between Richard J. Schlager and ADA Environmental Solutions, LLC (assigned to ADA-ES, Inc.) ** (17)                                                                
|      | 
|10.27 |  | 2004 Stock Compensation Plan #2 and model stock option agreements** (16)                                                                                                                                      



18



---

|      |  |                                                                                                                                                                                                                                                 
|----- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|10.28 |  | 2004 Directors Stock Compensation Plan #1** (18)                                                                                                                                                                                                
|      | 
|10.29 |  | 2005 Directors Compensation Plan** (5)                                                                                                                                                                                                         
|      | 
|10.31 |  | Chemicals, Equipment, and Technical Engineering Services Supply Agreement dated as of November 3, 2006 by and between ADA-ES, Inc. and Clean Coal Solutions, LLC (f/k/a
ADA-NexCoal, LLC). (19)                                                 
|      | 
|10.32 |  | Purchase and Sale Agreement dated as of November 3, 2006 by and among ADA-ES, Inc., NexGen Refined Coal, LLC and Clean Coal Solutions, LLC (f/k/a ADA-NexCoal, LLC).
(20)                                                                       
|      | 
|10.33 |  | Amended and Restated Operating Agreement of Clean Coal Solutions, LLC (f/k/a ADA-NexCoal, LLC) dated as of November 3, 2006 by and among ADA-ES, Inc., NexGen Refined Coal, LLC
and Clean Coal Solutions, LLC (f/k/a ADA-NexCoal, LLC). (21)    
|      | 
|10.34 |  | Employment Agreement dated March 1, 2003 between Sharon M. Sjostrom and ADA Environmental Solutions, LLC (assigned to ADA-ES, Inc.)** (22)                                                                                                      
|      | 
|10.35 |  | Executive Compensation Plan** (22)                                                                                                                                                                                                              
|      | 
|10.38 |  | 2007 Equity Incentive Plan** (23)                                                                                                                                                                                                               
|      | 
|10.39 |  | Employment Agreement dated November 28, 2005 between Richard Miller and ADA-ES, Inc.** (24)                                                                                                                                                     
|      | 
|10.43 |  | Employment Agreement dated January 1, 2008 between Cameron E. Martin and ADA-ES, Inc.** (24)                                                                                                                                                    
|      | 
|10.44 |  | Engineering, Procurement and Construction Agreement dated January 29, 2008 between Red River Environmental Products, LLC and BE&K Construction Company, LLC. ***
(24)                                                                           
|      | 
|10.46 |  | Agreement for the Purchase of Activated Carbon between Red River Environmental Product, LLC and Southern Company Services, Inc dated June 5, 2008*** (25)                                                                                       
|      | 
|(a)   |  | Master Agreement for the Purchase of Activated Carbon                                                                                                                                                                                           
|      | 
|(b)   |  | General Conditions of the Contract for the Purchase of Chemical and/or Gas Products                                                                                                                                                             
|      | 
|(c)   |  | Special Supplemental Conditions Contract                                                                                                                                                                                                        
|      | 
|10.48 |  | Promissory Note and Account Pledge Agreement for Colorado Business Bank Letter of Credit dated August 15, 2008 (7)                                                                                                                              
|      | 
|10.49 |  | Carbon Supply Agreement between Red River Environmental Products, LLC and Luminant Generation Company, LLC dated September 3, 2008*** (7)                                                                                                       
|      | 
|10.50 |  | Multiple Hearth Furnace (MHF) Contract between Industrial Furnace Company, Inc and Red River Environmental Products, LLC dated September 5, 2008*** (7)                                                                                         
|      | 
|(a)   |  | Unit 1- Project No. 65214-RFP No. EFH-101                                                                                                                                                                                                       
|      | 
|(b)   |  | Unit 2- Project No. 65214-RFP No. EFH-101                                                                                                                                                                                                       
|      | 
|(c)   |  | Unit 3- Project No. 65214-RFP No. EFH-101                                                                                                                                                                                                       
|      | 
|(d)   |  | Unit 4- Project No. 65214-RFP No. EFH-101                                                                                                                                                                                                       
|      | 
|10.51 |  | Amended and Restated Engineering, Procurement and Construction Agreement between Red River Environmental Products, LLC and BE&K Construction Company, LLC dated September 8,
2008*** (7)                                                        
|      | 
|10.52 |  | Guaranty of ADA-ES, Inc. to BE&K Construction Company, LLC dated September 8, 2008 regarding Amended and Restated Engineering, Procurement and Construction Agreement
(7)                                                                       
|      | 
|10.53 |  | Securities Purchase Agreement between ADA-ES, Inc. and Energy Capital Partners I, LP, Energy Capital Partners I-A LP, Energy Capital Partners I-B, LP and Energy Capital Partners I
(TEF IP), LP dated October 1, 2008 (7)                      
|      | 
|10.54 |  | Joint Development Agreement between ADA-ES, Inc. and Energy Capital Partners I, LP, Energy Capital Partners I-A LP, Energy Capital Partners I-B IP, LP and Energy Capital Partners I
(Crowfoot IP), LP dated October 1, 2008 *** (26)           
|      | 
|10.55 |  | Amended and Restated ADA Carbon Solutions, LLC Limited Liability Company Agreement *** (36)                                                                                                                                                     
|      | 
|10.56 |  | Intellectual Property License Agreement between ADA-ES, Inc. and Crowfoot Development, LLC*** (7)                                                                                                                                               
|      | 
|10.57 |  | Project Crowfoot Incentive Program, as amended and restated on August 13, 2008 and October 15, 2008**, *** (27)                                                                                                                                 
|      | 
|10.58 |  | Amendment to the Master Agreement for the Purchase of Activated Carbon between Red River Environmental Products, LLC and Southern Company Services, Inc dated December 17, 2008
(28)                                                            
|      | 
|10.59 |  | Site Work Agreement between Red River Environmental Products, LLC and BE&K Construction Company, LLC dated January 23, 2009 (29)                                                                                                                
|      | 
|10.60 |  | First Amendment to the Securities Purchase Agreement between ADA-ES, Inc. and Energy Capital Partners I, LP, Energy Capital Partners I-A LP, Energy Capital Partners I-B, LP and
Energy Capital Partners I (TEF IP), LP dated March 6, 2009 (29)
|      | 
|10.61 |  | [Intentionally omitted]                                                                                                                                                                                                                         



19



---

|      |  |                                                                                                                                                                                             
|----- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|      | 
|10.62 |  | First Amendment to the Carbon Supply Agreement between Red River Environmental Products, LLC and Luminant Generation Company, LLC dated March 31, 2009*** (29)                              
|      | 
|10.63 |  | Second Amendment to the Agreement for the Purchase of Activated Carbon between Red River Environmental Products, LLC and Southern Company Services, Inc. dated February 26, 2009
(29)       
|      | 
|10.64 |  | First Amendment to Purchase and Sale Agreement dated as of October 26, 2009 by and among ADA-ES, Inc., NexGen Refined Coal, LLC and Clean Coal Solutions, LLC (f/k/a
ADA-NexCoal, LLC) (30) 
|      | 
|10.65 |  | Loan Commitment Agreement dated as of October 26, 2009 by and among ADA-ES, Inc., NexGen Refined Coal Holding, LLC and Clean Coal Solutions, LLC (30)                                       
|      | 
|10.66 |  | First Amendment to Chemicals, Equipment, and Technical Engineering Services Supply Agreement dated as of October 26, 2009 by and among ADA-ES, Inc., and Clean Coal Solutions,
LLC (30)     
|      | 
|10.67 |  | Continuing Unconditional Guaranty dated as of October 26, 2009 by and among ADA-ES, Inc., and NexGen Refined Coal Holdings, LLC (30)                                                        
|      | 
|10.68 |  | Security and Pledge Agreement dated as of October 26, 2009 by and among ADA-ES, Inc., and NexGen Refined Coal Holdings, LLC (30)                                                            
|      | 
|10.69 |  | Promissory Notes dated as of October 26, 2009 by and among ADA-ES, Inc., Clean Coal Solutions, LLC and NexGen Refined Coal Holdings, LLC (30)                                               
|      | 
|10.70 |  | Project Crowfoot Incentive Program as amended and restated on August 13, 2008, October 15, 2008 and March 23, 2010 *** (31)                                                                 
|      | 
|10.71 |  | Development and License Agreement with Arch Coal, Inc. dated June 25, 2010*** (32)                                                                                                          
|      | 
|10.72 |  | Equipment Lease between AEC-NM, LLC and GS RC Investments LLC dated June 29, 2010*** (32)                                                                                                   
|      | 
|10.73 |  | Equipment Lease between AEC-TH, LLC and GS RC Investments LLC dated June 29, 2010*** (32)                                                                                                   
|      | 
|10.74 |  | Technology Sublicense Agreement between ADA-ES, Inc., Clean Coal Solutions, LLC and GS RC Investments LLC dated June 29, 2010 (32)                                                          
|      | 
|10.75 |  | ADA-ES, Inc. Guaranty for the benefit of GS RC Investments LLC dated June 29, 2010 (32)                                                                                                     
|      | 
|10.76 |  | Agreement to Lease between Clean Coal Solutions, LLC, AEC-NM, LLC, AEC-TH, LLC, and GS RC Investments LLC dated June 29, 2010*** (32)                                                       
|      | 
|10.77 |  | Amended and Restated License Agreement between ADA-ES, Inc. and Clean Coal Solutions, LLC dated October 30, 2009 (32)                                                                       
|      | 
|10.78 |  | Refined Coal Activities Supplemental Compensation Plan for Employees, Contractors and Consultants of ADA-ES, Inc dated April 20, 2010 (32)                                                  
|      | 
|10.79 |  | Amended and Restated 2007 Equity Incentive Plan, dated August 31, 2010 (33)                                                                                                                 
|      | 
|10.80 |  | US Department of Energy Cooperative Agreement No. DE-FE0004343 Evaluation of Solid Sorbents as an Industrial Retrofit Technology for Carbon Dioxide Capture, dated
September 30, 2010 (33)
|      | 
|10.81 |  | First Amendment to the Amended and Restated License Agreement between ADA-ES, Inc. and Clean Coal Solutions, LLC dated as of August 4, 2010 (35)                                            
|      | 
|10.82 |  | 2010 Non-Management Compensation and Incentive Plan (34)                                                                                                                                    
|      | 
|21.1  |  | Subsidiaries of ADA-ES, Inc.(35)                                                                                                                                                            
|      | 
|23.1* |  | Consent of Ehrhardt Keefe Steiner & Hottman PC                                                                                                                                              
|      | 
|31.1* |  | Certification of Chief Executive Officer of ADA-ES, Inc. Pursuant to 17 CFR 240.13a-14(a) or 17 CFR 240.15d-14(a)                                                                           
|      | 
|31.2* |  | Certification of Chief Financial Officer of ADA-ES, Inc. Pursuant to 17 CFR 240.13a-14(a) or 17 CFR 240.15d-14(a)                                                                           
|      | 
|32.1* |  | Certification of Chief Executive Officer of ADA-ES, Inc. Pursuant to 18 U.S.C Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                            
|      | 
|32.2* |  | Certification of Chief Financial Officer of ADA-ES, Inc. Pursuant to 18 U.S.C Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                            



Notes:

|* |  Filed herewith.
|- | -----------------

|** |  Management contract or compensatory plan or arrangement.
|-- | ----------------------------------------------------------

|*** |  Portions of this exhibit have been omitted pursuant to a request for confidential treatment
|--- | ---------------------------------------------------------------------------------------------

|(1) | Incorporated by reference to Exhibit 3.1 to the Form 10-QSB for the quarter ended September 30, 2005 filed on November 10, 2005 (File No. 000-50216).
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------



20



---

|(2) | Incorporated by reference to Exhibit 3.2 to the Form 10-Q for the quarter ended September 30, 2010 filed on November 12, 2010 (File No. 000-50216).
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Incorporated by reference to Exhibit 4.1 to the Form 8-K dated October 21, 2005 filed on October 26, 2005 (File No. 000-50216).
|--- | -------------------------------------------------------------------------------------------------------------------------------

|(4) | Incorporated by reference to Exhibit 10.1 to the Form 8-K dated October 21, 2005 filed on October 26, 2005 (File No. 000-50216).
|--- | --------------------------------------------------------------------------------------------------------------------------------

|(5) | Incorporated by reference to the same numbered Exhibit to the Form 10-KSB for the year ended December 31, 2005 filed on March 30, 2006 (File No. 000-50216).
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | Incorporated by reference to Exhibit A to Exhibit 10.1 to the Form S-3 filed on October 18, 2004 (File No. 333-119795).
|--- | -----------------------------------------------------------------------------------------------------------------------

|(7) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q for the quarter ended September 30, 2008 filed on November 07, 2008 (File No.
000-50216).
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------

|(8) | Incorporated by reference to Exhibit 4.1 to the form S-8 filed on June 3, 2009 (File No. 333-159715).
|--- | -----------------------------------------------------------------------------------------------------

|(9) | Incorporated by reference to Exhibit 4.1 to the form S-8 filed on June 3, 2009 (File No. 333-159715).
|--- | -----------------------------------------------------------------------------------------------------

|(10) | Incorporated by reference to Exhibit 4.2 to the form S-8 filed on June 3, 2009 (File No. 333-159715).
|---- | -----------------------------------------------------------------------------------------------------

|(11) | Incorporated by reference to Exhibit 4.4 to the form S-8 filed on June 3, 2009 (File No. 333-159715).
|---- | -----------------------------------------------------------------------------------------------------

|(12) | Incorporated by reference to Exhibit 4.1 to the Form 10-Q for the quarter ended March 31, 2010 filed on May 13, 2010 (File No. 000-50216).
|---- | ------------------------------------------------------------------------------------------------------------------------------------------

|(13) | Incorporated by reference to the same numbered Exhibit to the Form 10-KSB for the year ended December 31, 2005 filed on March 30, 2006 (File No. 000-50216).
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------

|(14) | Incorporated by reference to Exhibit 99.2 to the Form S-8 filed on November 14, 2003 (File No. 333-110479).
|---- | -----------------------------------------------------------------------------------------------------------

|(15) | Incorporated by reference to Exhibit 99.1 to the Form S-8 filed on February 6, 2004 (File No. 333-112587).
|---- | ----------------------------------------------------------------------------------------------------------

|(16) | Incorporated by reference to Exhibit 99.3 to the Form S-8 filed on December 14, 2004 (File No. 333-121234).
|---- | -----------------------------------------------------------------------------------------------------------

|(17) | Incorporated by reference to the same numbered Exhibit to the Form 10-KSB for the year ended December 31, 2004 filed on March 30, 2005 (File No. 000-50216).
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------

|(18) | Incorporated by reference to Exhibit 99.1 to the Form S-8 filed on April 16, 2004 (File No. 333-114546).
|---- | --------------------------------------------------------------------------------------------------------

|(19) | Incorporated by reference to Exhibit 10.2 to the Form 10-Q for the quarter ended September 30, 2006 filed on November 8, 2006 (File No. 000-50216).
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------

|(20) | Incorporated by reference to Exhibit 10.3 to the Form 10-Q for the quarter ended September 30, 2006 filed on November 8, 2006 (File No. 000-50216).
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------

|(21) | Incorporated by reference to Exhibit 10.4 to the Form 10-Q for the quarter ended September 30, 2006 filed on November 8, 2006 (File No. 000-50216).
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------

|(22) | Incorporated by reference to the same numbered Exhibit to the Form 10-K for the year ended December 31, 2006 filed on March 27, 2007 (File No. 000-50216).
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(23) | Incorporated by reference to definitive proxy material proposal No. 2 for the 2007 Annual Meeting filed on April 30, 2007 (File No. 000-50216).
|---- | -----------------------------------------------------------------------------------------------------------------------------------------------

|(24) | Incorporated by reference to the same numbered Exhibit to the Form 10-K for the year ended December 31, 2007 filed on March 14, 2008 (File No. 000-50216).
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(25) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q for the quarter ended June 30, 2008 filed on August 6, 2008 (File No. 000-50216).
|---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------

|(26) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q/A for the quarter ended September 30, 2008 filed on December 24, 2008 (File No.
000-50216).
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(27) | Incorporated by reference to Exhibit 10.38 to the Form 10-Q for the quarter ended September 30, 2008 filed on November 07, 2008 (File No. 000-50216).
|---- | -----------------------------------------------------------------------------------------------------------------------------------------------------

|(28) | Incorporated by reference to the same numbered Exhibit to the Form 10-K for the year ended December 31, 2008 filed on March 27, 2009 (File No. 000-50216).
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(29) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q for the quarter ended March 31, 2009 filed on May 14, 2009 (File No. 000-50216).
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------

|(30) | Incorporated by reference to the same numbered Exhibit to Form 10-K for the year ended December 31, 2009 filed on March 29, 2010 (File No. 000-50216).
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------

|(31) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q for the quarter ended March 31, 2010 filed on May 13, 2010 (File No. 000-50216).
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------

|(32) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q for the quarter ended June 30, 2010 filed on August 16, 2010 (File No. 000-50216).
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(33) | Incorporated by reference to the same numbered Exhibit to the Form 10-Q for the quarter ended September 30, 2010 filed on November 12, 2010 (File No.
000-50216).
|---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------

|(34) | Incorporated by reference to Exhibit 99.1 to the Form S-8 filed on February 9, 2010 (File No. 333-164792).
|---- | ----------------------------------------------------------------------------------------------------------

|(35) | Incorporated by reference to the same numbered Exhibit to the Form 10-K for the year ended December 31, 2010 filed on March 28, 2011 (File No. 000-50216).
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(36) | Incorporated by reference to the same numbered Exhibit to the Form 10-K/A for the year ended December 31, 2010 filed on July 1, 2011 (File No. 000-50216).
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(b) | See (a)(3) above.
|--- | -----------------

|(c) | See (a)(2) above.
|--- | -----------------



21



---

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Exchange Act, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



|                                             |  |                                     |  |                      
|-------------------------------------------- |  | ----------------------------------- |  | ---------------------
|ADA-ES, Inc.                                 |  |                                    
|(Registrant)                                 |  |                                    
|                                             |  |                                    
|By                                           |  | /s/ Mark H. McKinnies               |  | /s/ Michael D. Durham
|Mark H. McKinnies, Senior Vice               |  | Michael D. Durham                  
|President and Chief Financial Officer        |  | President (Chief Executive Officer)
|(Principal Financial and Accounting Officer) |  |                                    
|                                             | 
|Date: October 19, 2012                       |  | Date: October 19, 2012             



22



---

INDEX TO FINANCIAL STATEMENTS



|                                                                                                                       |  |      |     | 
|---------------------------------------------------------------------------------------------------------------------- |  | ---- | --- | 
|                                                                                                                       |  | PAGE |    
|                                                                                                                       | 
|Report of Independent Registered Public Accounting Firm                                                                |  |      | F-2 | 
|                                                                                                                       | 
|Consolidated Balance Sheets  December 31, 2010 and 2009                                                               |  |      | F-3 | 
|                                                                                                                       | 
|Consolidated Statements of Operations For the Years Ended December 31, 2010 and
2009                                  |  |      | F-4 | 
|                                                                                                                       | 
|Consolidated Statements of Changes in Stockholders Equity (Deficit)  For the Years Ended December 31,
 2010 and 2009 |  |      | F-5 | 
|                                                                                                                       | 
|Consolidated Statements of Cash Flows  For the Years Ended December 31, 2010 and
2009                                 |  |      | F-6 | 
|                                                                                                                       | 
|Notes to Consolidated Financial Statements                                                                             |  |      | F-7 | 



F-1



---

REPORT OF INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM

To the Board of Directors and Stockholders of

ADA-ES, Inc. and Subsidiaries

Littleton, Colorado

We have audited the accompanying consolidated balance sheets of ADA-ES, Inc. and subsidiaries as of December 31, 2010 and 2009, and the related
consolidated statements of operations, stockholders equity, and cash flows for the years then ended. These consolidated financial statements are the responsibility of the Companys management. Our responsibility is to express an opinion
on these consolidated financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public
Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Company is not required
to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the
circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Companys internal control over financial reporting. Accordingly, we express no such opinion. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the consolidated financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe
that our audits provide a reasonable basis for our opinion.

As discussed in Note 8, Note 12, Note 14 and Note 15 to the consolidated
financial statements, the Company amended its consolidated financial statements to reflect the restatement of the Companys consolidated financial statements and related disclosures as of December 31, 2010. The Companys consolidated
financial statements have been restated to record a full valuation allowance against the Companys net deferred tax assets as of December 31, 2010.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the consolidated financial position of ADA-ES, Inc. and subsidiaries as of
December 31, 2010 and 2009, and the results of their operations and their cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

/s/ Ehrhardt Keefe Steiner & Hottman PC

March 28, 2011, except for Notes 8, 12, 14 and 15 as to which the date is October 19, 2012

Denver, Colorado



F-2



---

ADA-ES, Inc. and Subsidiaries

Consolidated Balance Sheets

December 31, 2010 and 2009

(Amounts in thousands, except share
data)



|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|----------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -
|                                                                                                                                                            |  | 2010                    |         |   | 2009 |  
|                                                                                                                                                            |  | (Restated, see Note 15) |         |   |      |  
|ASSETS                                                                                                                                                      |  |                         |         |   |      |   |         |  
|Current Assets                                                                                                                                              |  |                         |         |   |      |   |         |  
|Cash and cash equivalents                                                                                                                                   |  | $                       | 9,696   |   |      | $ | 1,456   |  
|Receivables, net of allowance for doubtful accounts of $10 and $17, respectively                                                                            |  |                         | 9,066   |   |      |   | 5,812   |  
|Investment in securities                                                                                                                                    |  |                         | 505     |   |      |   | 400     |  
|Notes receivable                                                                                                                                            |  |                         | 1,580   |   |      |   |        |  
|Assets held for resale and inventory                                                                                                                        |  |                         | 9       |   |      |   | 2,059   |  
|Prepaid expenses and other                                                                                                                                  |  |                         | 406     |   |      |   | 1,110   |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total current assets                                                                                                                                        |  |                         | 21,262  |   |      |   | 10,837  |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Property and Equipment,at cost                                                                                                                              |  |                         | 8,041   |   |      |   | 3,100   |  
|Less accumulated depreciation and amortization                                                                                                              |  |                         | (3,235  | ) |      |   | (2,252  | )
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Net property and equipment                                                                                                                                  |  |                         | 4,806   |   |      |   | 848     |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|                                                                                                                                                            |  |                        
|Goodwill                                                                                                                                                    |  |                         | 435     |   |      |   | 435     |  
|Intangible assets, net of $71 and $61 in amortization, respectively                                                                                         |  |                         | 260     |   |      |   | 229     |  
|Investment in unconsolidated entities                                                                                                                       |  |                         | 14,021  |   |      |   | 21,776  |  
|Other assets                                                                                                                                                |  |                         | 227     |   |      |   | 6,842   |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total Assets                                                                                                                                                |  | $                       | 41,011  |   |      | $ | 40,967  |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|                                                                                                                                                            |  |                        
|LIABILITIES AND STOCKHOLDERS EQUITY (DEFICIT)                                                                                                              |  |                         |         |   |      |   |         |  
|Current Liabilities                                                                                                                                         |  |                         |         |   |      |   |         |  
|Accounts payable                                                                                                                                            |  | $                       | 3,646   |   |      | $ | 5,312   |  
|Accrued payroll and related liabilities                                                                                                                     |  |                         | 1,852   |   |      |   | 578     |  
|Deferred revenue                                                                                                                                            |  |                         | 5,639   |   |      |   | 1,452   |  
|Accrued expenses and other liabilities                                                                                                                      |  |                         | 244     |   |      |   | 1,306   |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total current liabilities                                                                                                                                   |  |                         | 11,381  |   |      |   | 8,648   |  
|                                                                                                                                                            |  |                        
|Long-term Liabilities                                                                                                                                       |  |                         |         |   |      |   |         |  
|Accrued indemnity (Notes 6 and 9)                                                                                                                           |  |                         | 27,411  |   |      |   | 6,822   |  
|Accrued warranty and other                                                                                                                                  |  |                         | 4,432   |   |      |   | 1,146   |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total Liabilities                                                                                                                                           |  |                         | 43,224  |   |      |   | 16,616  |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|                                                                                                                                                            |  |                        
|Commitments and Contingencies (Notes 6, 7 and 9)                                                                                                            |  |                         |         |   |      |   |         |  
|                                                                                                                                                            |  |                        
|Stockholders Equity (Deficit)                                                                                                                              |  |                         |         |   |      |   |         |  
|ADA-ES, Inc. stockholders equity (deficit)                                                                                                                 |  |                         |         |   |      |   |         |  
|Preferred stock: 50,000,000 shares authorized, none outstanding                                                                                             |  |                         |        |   |      |   |        |  
|Common stock: no par value, 50,000,000 shares authorized, 7,538,861 and 7,093,931 shares issued and outstanding at
December 31, 2011 and 2010, respectively |  |                         | 39,627  |   |      |   | 37,000  |  
|Accumulated deficit                                                                                                                                         |  |                         | (43,875 | ) |      |   | (12,748 | )
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total ADA-ES, Inc. stockholders equity (deficit)                                                                                                           |  |                         | (4,248  | ) |      |   | 24,252  |  
|Non-controlling interest                                                                                                                                    |  |                         | 2,035   |   |      |   | 99      |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total Stockholders Equity (Deficit)                                                                                                                        |  |                         | (2,213  | ) |      |   | 24,351  |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  
|Total Liabilities and Stockholders Equity (Deficit)                                                                                                        |  | $                       | 41,011  |   |      | $ | 40,967  |  
|                                                                                                                                                            |  |                         |         |   |      |   |         |  

See accompanying notes.



F-3



---

ADA-ES, Inc. and Subsidiaries

Consolidated Statements of Operations

For the Years Ended December 31, 2010 and 2009

(Amounts in
thousands, except per share data)



|                                                                                                |  |                         |         |   |      |   |         |  
|----------------------------------------------------------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -
|                                                                                                |  | 2010                    |         |   | 2009 |  
|                                                                                                |  | (Restated, See Note 15) |         |   |      |  
|Revenues                                                                                        |  |                         |         |   |      |   |         |  
|Emission control                                                                                |  | $                       | 9,825   |   |      | $ | 15,947  |  
|CO2capture                                                                                      |  |                         | 2,073   |   |      |   | 1,526   |  
|Refined coal                                                                                    |  |                         | 10,383  |   |      |   | 2,588   |  
|                                                                                                |  |                         |         |   |      |   |         |  
|Total revenues                                                                                  |  |                         | 22,281  |   |      |   | 20,061  |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Cost of Revenues                                                                                |  |                         |         |   |      |   |         |  
|Emission control                                                                                |  |                         | 6,107   |   |      |   | 9,544   |  
|CO2capture                                                                                      |  |                         | 1,066   |   |      |   | 969     |  
|Refined coal                                                                                    |  |                         | 1,440   |   |      |   | 3,357   |  
|                                                                                                |  |                         |         |   |      |   |         |  
|Total cost of revenues                                                                          |  |                         | 8,613   |   |      |   | 13,870  |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Gross Margin before Depreciation and Amortization                                               |  |                         | 13,668  |   |      |   | 6,191   |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Other Costs and Expenses                                                                        |  |                         |         |   |      |   |         |  
|General and administrative                                                                      |  |                         | 32,790  |   |      |   | 16,745  |  
|Research and development                                                                        |  |                         | 911     |   |      |   | 709     |  
|Depreciation and amortization                                                                   |  |                         | 917     |   |      |   | 577     |  
|                                                                                                |  |                         |         |   |      |   |         |  
|Total expenses                                                                                  |  |                         | 34,618  |   |      |   | 18,031  |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Operating Loss                                                                                  |  |                         | (20,950 | ) |      |   | (11,840 | )
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Other Income (Expense)                                                                          |  |                         |         |   |      |   |         |  
|Interest and other income                                                                       |  |                         | 2,494   |   |      |   | 34      |  
|Settlement of litigation, net                                                                   |  |                         | 6,072   |   |      |   |        |  
|Net equity in net income (loss) from unconsolidated entities                                    |  |                         | (8,037  | ) |      |   | (3,243  | )
|                                                                                                |  |                         |         |   |      |   |         |  
|Total other income (expense)                                                                    |  |                         | 529     |   |      |   | (3,209  | )
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Loss from Continuing Operations Before Income Tax (Expense) Benefit andNon-controlling Interest |  |                         | (20,421 | ) |      |   | (15,049 | )
|                                                                                                |  |                        
|Income Tax (Expense) Benefit                                                                    |  |                         | (7,093  | ) |      |   | 5,546   |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Net Loss Before Non-controlling Interest                                                        |  |                         | (27,514 | ) |      |   | (9,503  | )
|                                                                                                |  |                        
|Non-controlling Interest                                                                        |  |                         | (3,613  | ) |      |   | 732     |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Net Loss Attributable to ADA-ES, Inc.                                                           |  | $                       | (31,127 | ) |      | $ | (8,771  | )
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Net Loss Per Common Share  Basic and Diluted Attributable to ADA-ES, Inc.                      |  | $                       | (4.21   | ) |      | $ | (1.26   | )
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Weighted Average Common Shares Outstanding                                                      |  |                         | 7,393   |   |      |   | 6,973   |  
|                                                                                                |  |                         |         |   |      |   |         |  
|                                                                                                |  |                        
|Weighted Average Diluted Common Shares Outstanding                                              |  |                         | 7,393   |   |      |   | 6,973   |  
|                                                                                                |  |                         |         |   |      |   |         |  

See accompanying notes.



F-4



---

ADA-ES, Inc. and Subsidiaries

Consolidated Statements of Changes in Stockholders Equity (Deficit)

For the Years Ended December 31, 2010 and 2009

(Amounts in thousands, except share data)



|                                                     |  |              |           |  |              |   |        |                                 |  |   |                 |   |  |             |         |   |           |   |         |   |  |   |         |  
|---------------------------------------------------- |  | ------------ | --------- |  | ------------ | - | ------ | ------------------------------- |  | - | --------------- | - |  | ----------- | ------- | - | --------- | - | ------- | - |  | - | ------- | -
|                                                     |  | Common Stock |           |  | (Accumulated |   |        | Total ADA-ESStockholdersEquity |  |   | Non-controlling |   |  | TotalEquity |        
|                                                     |  | Shares       |           |  | Amount       |   |        | Deficit)                        |  |   | (Deficit)       |   |  | Interest    |         |   | (Deficit) |  
|                                                     |  |              |           |  |              |  
|Balances, December 31, 2008                          |  |              | 6,755,932 |  |              | $ | 35,812 |                                 |  | $ | (3,977          | ) |  | $           | 31,835  |   |           | $ | 25,152  |   |  | $ | 56,987  |  
|Stock-based compensation                             |  |              | 265,649   |  |              |   | 997    |                                 |  |   |                |   |  |             | 997     |   |           |   |        |   |  |   | 997     |  
|Issuance of stock on exercise of options             |  |              | 1,250     |  |              |   | 4      |                                 |  |   |                |   |  |             | 4       |   |           |   |        |   |  |   | 4       |  
|Issuance of stock to 401(k) plan                     |  |              | 71,100    |  |              |   | 204    |                                 |  |   |                |   |  |             | 204     |   |           |   |        |   |  |   | 204     |  
|Equity contributions                                 |  |              |          |  |              |   |       |                                 |  |   |                |   |  |             |        |   |           |   | 738     |   |  |   | 738     |  
|Deconsolidation of ADA Carbon Solutions, LLC         |  |              |          |  |              |   |       |                                 |  |   |                |   |  |             |        |   |           |   | (25,059 | ) |  |   | (25,059 | )
|Expense of stock registration                        |  |              |          |  |              |   | (17    | )                               |  |   |                |   |  |             | (17     | ) |           |   |        |   |  |   | (17     | )
|Net loss                                             |  |              |          |  |              |   |       |                                 |  |   | (8,771          | ) |  |             | (8,771  | ) |           |   | (732    | ) |  |   | (9,503  | )
|                                                     |  |              |           |  |              |   |        |                                 |  |   |                 |   |  |             |         |   |           |   |         |   |  |   |         |  
|Balances,December 31, 2009                           |  |              | 7,093,931 |  |              | $ | 37,000 |                                 |  | $ | (12,748         | ) |  | $           | 24,252  |   |           | $ | 99      |   |  | $ | 24,351  |  
|                                                     |  |              |           |  |              |   |        |                                 |  |   |                 |   |  |             |         |   |           |   |         |   |  |   |         |  
|Stock-based compensation                             |  |              | 214,089   |  |              |   | 1,024  |                                 |  |   |                |   |  |             | 1,024   |   |           |   |        |   |  |   | 1,024   |  
|Issuance of stock on exercise of options             |  |              | 41,850    |  |              |   | 347    |                                 |  |   |                |   |  |             | 347     |   |           |   |        |   |  |   | 347     |  
|Issuance of stock to 401(k) plan                     |  |              | 45,106    |  |              |   | 282    |                                 |  |   |                |   |  |             | 282     |   |           |   |        |   |  |   | 282     |  
|Issuance of stock for cash                           |  |              | 143,885   |  |              |   | 1,000  |                                 |  |   |                |   |  |             | 1,000   |   |           |   |        |   |  |   | 1,000   |  
|Equity contributions by non-controlling interest     |  |              |          |  |              |   |       |                                 |  |   |                |   |  |             |        |   |           |   | 2,090   |   |  |   | 2,090   |  
|Distributions to non-controlling interest            |  |              |          |  |              |   |       |                                 |  |   |                |   |  |             |        |   |           |   | (3,767  | ) |  |   | (3,767  | )
|Expense of stock issuance and registration           |  |              |          |  |              |   | (26    | )                               |  |   |                |   |  |             | (26     | ) |           |   |        |   |  |   | (26     | )
|Net (loss) income (restated)                         |  |              |          |  |              |   |       |                                 |  |   | (31,127         | ) |  |             | (31,127 | ) |           |   | 3,613   |   |  |   | (27,514 | )
|                                                     |  |              |           |  |              |   |        |                                 |  |   |                 |   |  |             |         |   |           |   |         |   |  |   |         |  
|Balances,December 31, 2010, as restated, see Note 15 |  |              | 7,538,861 |  |              | $ | 39,627 |                                 |  | $ | (43,875         | ) |  | $           | (4,248  | ) |           | $ | 2,035   |   |  | $ | (2,213  | )
|                                                     |  |              |           |  |              |   |        |                                 |  |   |                 |   |  |             |         |   |           |   |         |   |  |   |         |  

See accompanying notes.



F-5



---

ADA-ES, Inc. and Subsidiaries

Consolidated Statements of Cash Flows

Years Ended December 31, 2010 and 2009

(Amounts in thousands)



|                                                                                          |  |                         |         |   |      |   |         |  
|----------------------------------------------------------------------------------------- |  | ----------------------- | ------- | - | ---- | - | ------- | -
|                                                                                          |  | 2010                    |         |   | 2009 |  
|                                                                                          |  | (Restated, see Note 15) |         |   |      |  
|Cash Flows from Operating Activities                                                      |  |                         |         |   |      |   |         |  
|Net loss                                                                                  |  | $                       | (31,127 | ) |      | $ | (8,771  | )
|Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |                         |         |   |      |   |         |  
|Depreciation and amortization                                                             |  |                         | 917     |   |      |   | 577     |  
|Loss on disposal of assets                                                                |  |                         |        |   |      |   | 17      |  
|Provision for doubtful accounts                                                           |  |                         | (7      | ) |      |   |        |  
|Deferred tax expense (benefit)                                                            |  |                         | 7,093   |   |      |   | (5,555  | )
|Expenses paid with stock, restricted stock and stock options                              |  |                         | 1,306   |   |      |   | 1,201   |  
|Non-controlling interest in income (loss) from subsidiaries                               |  |                         | 3,613   |   |      |   | (732    | )
|Net equity in net income/loss from unconsolidated entities                                |  |                         | 8,037   |   |      |   | 3,243   |  
|Non-cash gain from joint venture partner                                                  |  |                         | (1,768  | ) |      |   |        |  
|Changes in operating assets and liabilities:                                              |  |                         |         |   |      |   |         |  
|Trade receivables, net                                                                    |  |                         | (3,247  | ) |      |   | 282     |  
|Assets held for resale and inventory                                                      |  |                         |        |   |      |   | (2,056  | )
|Prepaid expenses and other                                                                |  |                         | 289     |   |      |   | (155    | )
|Accounts payable                                                                          |  |                         | (1,666  | ) |      |   | 2,567   |  
|Accrued expenses                                                                          |  |                         | 20,589  |   |      |   | (407    | )
|Deferred revenue and other                                                                |  |                         | 7,686   |   |      |   | 8,186   |  
|                                                                                          |  |                         |         |   |      |   |         |  
|Net cash provided by (used in) operating activities                                       |  |                         | 11,715  |   |      |   | (1,603  | )
|                                                                                          |  |                         |         |   |      |   |         |  
|                                                                                          |  |                        
|Cash Flows from Investing Activities                                                      |  |                         |         |   |      |   |         |  
|Capital expenditures for equipment, patents and development projects                      |  |                         | (2,919  | ) |      |   | (296    | )
|Investment in securities                                                                  |  |                         | (105    | ) |      |   | (400    | )
|Cash balance held in deconsolidated entity                                                |  |                         |        |   |      |   | (25,171 | )
|Cash contributions to equity in unconsolidated entity                                     |  |                         | (283    | ) |      |   |        |  
|Principal payments received on notes receivable                                           |  |                         | 188     |   |      |   |        |  
|                                                                                          |  |                         |         |   |      |   |         |  
|Net cash used in investing activities                                                     |  |                         | (3,119  | ) |      |   | (25,867 | )
|                                                                                          |  |                         |         |   |      |   |         |  
|                                                                                          |  |                        
|Cash Flows from Financing Activities                                                      |  |                         |         |   |      |   |         |  
|Non-controlling interest equity contributions                                             |  |                         | 2,090   |   |      |   | 738     |  
|Distributions to non-controlling interest                                                 |  |                         | (3,767  | ) |      |   |        |  
|Issuance of common stock and exercise of stock options                                    |  |                         | 1,347   |   |      |   | 4       |  
|Stock issuance and registration costs                                                     |  |                         | (26     | ) |      |   | (17     | )
|                                                                                          |  |                         |         |   |      |   |         |  
|Net cash (used in) provided by financing activities                                       |  |                         | (356    | ) |      |   | 725     |  
|                                                                                          |  |                         |         |   |      |   |         |  
|                                                                                          |  |                        
|Increase (Decrease) in Cash and Cash Equivalents                                          |  |                         | 8,240   |   |      |   | (26,745 | )
|Cash and Cash Equivalents, beginning of year                                              |  |                         | 1,456   |   |      |   | 28,201  |  
|                                                                                          |  |                         |         |   |      |   |         |  
|Cash and Cash Equivalents,end of year                                                     |  | $                       | 9,696   |   |      | $ | 1,456   |  
|                                                                                          |  |                         |         |   |      |   |         |  
|                                                                                          |  |                        
|Supplemental Schedule of Non-Cash Flow Financing Activities                               |  |                         |         |   |      |   |         |  
|Stock and stock options issued for services                                               |  | $                       | 1,306   |   |      | $ | 1,201   |  
|                                                                                          |  |                         |         |   |      |   |         |  

See accompanying notes.



F-6



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



|1. | SUMMARY OF NATURE OF OPERATIONS AND SIGNIFICANT
ACCOUNTING POLICIES:
|-- | --------------------------------------------------------------------

Nature of Operations  ADA-ES,
Inc. (ADA), its wholly-owned subsidiary, ADA Environmental Solutions, LLC (ADA LLC) and ADAs 50% joint venture interest in Clean Coal Solutions, LLC (Clean Coal), are collectively referred to as the
Company. Our Company is principally engaged in providing environmental technologies and specialty chemicals to the coal-burning electric power generation industry. Our Company generates a substantial part of its revenue from the sale of
Activated Carbon Injection (ACI) systems, contracts co-funded by the government and industry and development and sale of technology and services for the refined coal (RC) market. The Companys sales occur principally
throughout the United States.

Principles of Consolidation  The Companys consolidated financial
statements include the accounts of ADA, ADA LLC and Clean Coal and its wholly owned subsidiaries. All significant intercompany transactions have been eliminated from the consolidated financial statements.

Cash and Cash Equivalents  The Company considers all highly liquid debt instruments with purchased maturities of three
months or less to be cash equivalents. The Company maintains the majority of its cash in money market accounts. The amount on deposit at December 31, 2010, was held in two commercial banks both of which deposits were in excess of the insurance
limits of the Federal Deposit Insurance Corporation.

Receivables and Credit Policies  Trade receivables
are uncollateralized customer obligations due under normal trade terms requiring payment within 30 days from the invoice date. Management reviews trade receivables periodically and reduces the carrying amount by a valuation allowance that reflects
managements best estimate of the amount that may not be collectible. The balance was as follows:



|                          |  |                    |       |  |      |   |       | 
|------------------------- |  | ------------------ | ----- |  | ---- | - | ----- | 
|                          |  | As of December 31, |      
|                          |  | 2010               |       |  | 2009 |  
|                          |  | (In thousands)     |      
|Receivables balance       |  | $                  | 8,239 |  |      | $ | 5,041 | 
|Unbilled revenues balance |  |                    | 827   |  |      |   | 771   | 
|                          |  |                    |       |  |      |   |       | 
|Total                     |  | $                  | 9,066 |  |      | $ | 5,812 | 
|                          |  |                    |       |  |      |   |       | 

Assets Held for Resale and Inventory  Assets held for resale and inventory consisted
of chemicals used for the production of RC and the RC facilities held for sale at December 31, 2009. The Company records inventory at the lower of cost or market as determined on a first-in, first-out basis and consisted of:



|                        |  |                 |   |  |      |   |       | 
|----------------------- |  | --------------- | - |  | ---- | - | ----- | 
|                        |  | At December 31, |  
|                        |  | 2010            |   |  | 2009 |  
|                        |  | (In thousands)  |  
|Chemicals and materials |  | $               | 0 |  |      | $ | 69    | 
|Equipment held for sale |  |                 | 0 |  |      |   | 1,987 | 
|ACI parts               |  |                 | 9 |  |      |   | 3     | 
|                        |  |                 |   |  |      |   |       | 
|Total inventory         |  | $               | 9 |  |      | $ | 2,059 | 
|                        |  |                 |   |  |      |   |       | 

Goodwill  The Company reviews the recoverability of goodwill at least annually as of
December 31 and any time business conditions indicate a potential change in recoverability. During 2010 and 2009, we did not have any recognized goodwill impairment charges.

Intangible Assets  Intangible assets principally consist of patents.



F-7



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



|                                                              |  |                 |        |   |      |   |        |  
|------------------------------------------------------------- |  | --------------- | ------ | - | ---- | - | ------ | -
|                                                              |  | At December 31, |       
|                                                              |  | 2010            |        |   | 2009 |  
|                                                              |  | (In thousands)  |       
|Patents:                                                      |  |                 |        |   |      |   |        |  
|Cost                                                          |  | $               | 331    |   |      | $ | 290    |  
|Less accumulated amortization                                 |  |                 | (71    | ) |      |   | (61    | )
|                                                              |  |                 |        |   |      |   |        |  
|Total intangible assets, net                                  |  | $               | 260    |   |      | $ | 229    |  
|                                                              |  |                 |        |   |      |   |        |  
|                                                              |  |                
|Amortization expense of intangible assets for the year        |  | $               | 10,000 |   |      | $ | 12,000 |  
|Amortization life in years of patents                         |  |                 | 17     |   |      |   | 17     |  
|Anticipated annual amortization expense over the next 5 years |  | $               | 15,000 |   |      | $ | 13,000 |  
|Weighted average amortization period in years                 |  |                 | 14     |   |      |   | 13     |  

Investments  Investments in securities represents a certificate of deposit which is
recorded at its fair value.

Investment in Unconsolidated Entities  On October 1, 2008, the Company
entered into a Joint Development Agreement (JDA) and formed a joint venture with Energy Capital Partners I, LP and its affiliated funds (ECP) known as ADA Carbon Solutions, LLC (Carbon Solutions). As of
December 31, 2010, ADA owns a 25.9% interest in Carbon Solutions. Among Carbon Solutions eight wholly-owned subsidiaries are ADA Carbon Solutions (Red River), LLC (Red River), and Crowfoot Supply Company, LLC (Crowfoot
Supply). As of December 31, 2010, our net investment in Carbon Solutions was $13.6 million and is being accounted for under the equity method of accounting. Accordingly, our respective share of Carbon Solutions net loss for the
period has been recognized in the consolidated statement of operations and our investment in Carbon Solutions has been reduced by our respective share of such loss. Carbon Solutions is principally engaged in development activities related to its
activated carbon business and selling of activated carbon from its AC manufacturing facility (the AC Facility).

On
January 20, 2010, the Company, together with NexGen Resources Corporation (NexGen), formed Clean Coal Solutions Services, LLC (CCSS) for the purpose of operating the RC facilities leased to a third party. The Company has
a 50% ownership interest in CCSS (but does not control it) and accordingly has accounted for the investment under the equity method of accounting.

The Company evaluates these investments annually for impairment other than temporary declines in value. At December 31, 2010, no such declines existed on such investments.

Property and Equipment  Property and equipment is stated at cost. Depreciation on assets is provided using the
straight-line method based on estimated useful lives ranging from 3 to 10 years. Maintenance and repairs are charged to operations as incurred and maintenance and repair of the RC facilities are the responsibility of CCSS under agreements with the
lessee of the facilities. When assets are retired, or otherwise disposed of, the property accounts are relieved of costs and accumulated depreciation and any resulting gain or loss is credited or charged to income.

Leasehold Improvements  Leasehold improvements are recorded at cost and included with property and equipment.
Amortization expense is computed using the straight-line method over the shorter of the estimated useful lives of the assets or the period of the related lease.

Warranty Costs  Under certain ACI Systems contracts, the Company may grant performance guaranties for a specified period and the achievement of a certain plant operating conditions. In
the event the equipment fails to perform as specified, the Company is obligated to correct or replace the equipment. Estimated warranty costs are recorded at the time of sale based on current industry factors.

Impairment of Long-Lived Assets (other than Goodwill)  The Company routinely performs an evaluation of the
recoverability of the carrying value of its long-lived assets to determine if facts and circumstances indicate that the carrying value of assets or intangible assets may be impaired and if any adjustment is warranted. Based on the Companys
evaluation as of December 31, 2010 and 2009, no impairment of value existed for long-lived assets.

Fair Value of
Financial Instruments  The carrying amounts of financial instruments, including cash, cash equivalents, accounts receivable, accounts payable and accrued expenses approximate fair value due to the short maturity of these instruments.
The fair values of investments were estimated based on quoted market prices for those investments.

Revenue
Recognition  ADA follows the percentage of completion method of accounting for all significant contracts excluding government contracts and chemical sales. The percentage of completion method of reporting income takes into account the
percent of work completed and overall revenue for contracts in progress. The Company recognizes revenue on government contracts based on the time and expenses incurred to date.



F-8



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



|                                                                    |  |                    |     |  |      |   |       | 
|------------------------------------------------------------------- |  | ------------------ | --- |  | ---- | - | ----- | 
|                                                                    |  | As of December 31, |    
|                                                                    |  | 2010               |     |  | 2009 |  
|                                                                    |  | (In thousands)     |    
|Cost in excess of billing included in accounts receivable, net      |  | $                  | 602 |  |      | $ | 659   | 
|Billing in excess of recognized income included in deferred revenue |  | $                  | 452 |  |      | $ | 1,300 | 

Chemical sales are recognized when products are shipped to customers. RC revenues are recognized when RC
production occurs. Based upon historical trends no reserve has been established for any returns. Chemicals are shipped FOB shipping point and title passes to the customer when the chemicals are shipped. RC products are typically produced by adding
proprietary chemicals to coal at the customers site and title passes to the customer when the production process is complete. The Companys sales agreements for chemicals do not contain a right of inspection or acceptance provision and
products are generally received by customers within one day of shipment. The Company has had no significant history of non-acceptance, or of replacing goods damaged or lost in transit.

Consulting revenue is recognized as services are performed and collection is assured.

Cost of Revenues  Costs of revenues include all labor, fringe benefits, subcontract labor, chemical and coal costs,
materials, equipment, supplies and travel costs directly related to the Companys production of revenue.

General
and Administrative  General and administrative costs include personnel related fringe benefits, sales and administrative staff labor costs, legal expenses, facility costs and other general costs of conducting business.

Penalties and Interest Costs  Under certain circumstance(s), the Company might have a penalty or interest charge that
is classified as an expense and is shown in our general and administrative costs. The cost is charged in the period the Company was notified of the charge.



|                             |  |                         |   |  |      |   |   | 
|---------------------------- |  | ----------------------- | - |  | ---- | - | - | 
|                             |  | Year Ended December 31, |  
|                             |  | 2010                    |   |  | 2009 |  
|                             |  | (In thousands)          |  
|Penalty and interest charges |  | $                       | 1 |  |      | $ | 6 | 

Research and Development Costs  Research and development costs are charged to
operations in the period incurred.

Income Taxes  The Company accounts for income taxes under the liability
method whereby deferred tax assets and liabilities are determined based on tax rates and laws enacted as of the date of the consolidated balance sheets. A valuation allowance is provided if and when deferred tax assets are not expected to be
realized. At each reporting date, management reviews deferred tax assets and liabilities and any related valuation allowance and, if necessary, revises them to reflect changed circumstances. In a situation where recent losses have been incurred, the
accounting standards require convincing evidence that there will be sufficient future taxable income to realize deferred tax assets. Carbon Solutions and Clean Coal are flow-through tax entities and therefore the owners are taxed or receive tax
benefits on their respective ownership interests.



F-9



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Net Income (Loss) Per Share  Basic EPS is calculated by dividing the
income or (loss) available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted EPS is calculated using the same numerator as basic EPS and further reflects the potential dilution that could
occur if outstanding stock options were exercised. No stock options were included in the calculations for 2010 or 2009 as their inclusion would be anti-dilutive due to our net losses for those periods.

Stock-Based Compensation  The Company records equity compensation to employees at estimated fair value.



|                                    |  |                    |       |   |      |   |       |  
|----------------------------------- |  | ------------------ | ----- | - | ---- | - | ----- | -
|                                    |  | As of December 31, |      
|                                    |  | 2010               |       |   | 2009 |  
|                                    |  | (In thousands)     |      
|Stock based compensation before tax |  | $                  | 1,306 |   |      | $ | 1,201 |  
|Stock based compensation after tax  |  |                    | 833   |   |      |   | 720   |  
|Basic and diluted (loss) per share  |  |                    | (0.11 | ) |      |   | (0.11 | )

Use of Estimates  The preparation of the Companys consolidated financial
statements in conformity with generally accepted accounting principles requires the Companys management to make estimates and assumptions that affect the amounts reported in these financial statements and accompanying notes. Actual results
could differ from those estimates.

The Company makes significant assumptions concerning:



| |  |  | the impairment of and the remaining realizability of its long-lived assets including equity method investments, goodwill and intangibles;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | estimates of certain overhead and other rates on research contracts with the U.S. Government, which are subject to future audits;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | fair value of stock options;
| | - |  | ----------------------------



| |  |  | warranty costs;
| | - |  | ---------------



| |  |  | the allowance for doubtful accounts, which is based on historical experience;
| | - |  | -----------------------------------------------------------------------------



| |  |  | the percentage of completion method of accounting for significant long-term contracts, which is based on estimates of gross margins and of the costs to
complete such contracts;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the deferred tax assets expected to be realized in future periods; and
| | - |  | ----------------------------------------------------------------------



| |  |  | the period over which we estimate we will earn up front license payments.
| | - |  | -------------------------------------------------------------------------

Segment Information  The Company follows established standards on the way that public companies report financial
information about operating segments in annual financial statements and required reporting of selected information about operating segments in interim financial statements issued to the public. The standard also provides for disclosures regarding
products and services, geographic areas, and major customers. These standards define operating segments as components of a company about which discrete financial information is available that is evaluated regularly by the chief operating decision
maker(s) in deciding how to allocate resources and in assessing performance.

In applying these standards, the Company has
defined its components as three reportable segments:



| |  |  | emission controls and other (EC),
| | - |  | -----------------------------------



| |  |  | CO2Capture (CC) and
| | - |  | ---------------------



| |  |  | refined coal (RC).
| | - |  | --------------------

Reclassification  Certain amounts in the 2009 consolidated financial statements have been reclassified to conform to the 2010 presentation. Such reclassification had no effect on net
income.



F-10



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Recently Issued Accounting Pronouncements  No pronouncements have
been issued which would have a significant impact on the Company.



|2. | NOTES RECEIVABLE:
|-- | -----------------

NexGen Refined Coal, LLC (NexGen), the Companys partner in Clean Coal, is required to pay the Company up to $4 million in order to maintain its 50% interest in Clean Coal. In June 2010,
NexGen executed notes payable to the Company for approximately $1.8 million with a due date of June 2012. Prior to that date, the Company expects to receive payments from NexGen based upon a portion of cash distributed to NexGen from Clean Coal,
with a portion of that amount to be applied as payment on the notes and any additional amounts to be applied to the remainder of the total $4 million expected to be paid by NexGen. The notes and remaining balance are accruing interest at the rate of
5% per annum.

Full payment of the principal amount of the notes is expected to be received by the Company by the end of
2011. During the second quarter of 2010, the Company recognized a non-operating gain of $1.8 million as a result of these notes, which is included in interest and other income on the consolidated statement of operations. The Company has received
$188,000 through December 31, 2010 in principal payments on these notes.



|3. | PROPERTY AND EQUIPMENT:
|-- | -----------------------

Property and equipment consisted of the following at the dates indicated:



|                                               |  |         |  |                    |        |   |      |   |        |  
|---------------------------------------------- |  | ------- |  | ------------------ | ------ | - | ---- | - | ------ | -
|                                               |  | Life in |  | As of December 31, |       
|                                               |  | Years   |  | 2010               |        |   | 2009 |  
|                                               |  |         |  | (In thousands)     |       
|Machinery and equipment                        |  | 3-10    |  | $                  | 2,497  |   |      | $ | 2,346  |  
|Leasehold improvements                         |  | 2-5     |  |                    | 535    |   |      |   | 504    |  
|Furniture and fixtures                         |  | 3-7     |  |                    | 284    |   |      |   | 250    |  
|Assets under lease (See Note 10)               |  | 10      |  |                    | 4,725  |   |      |   | 0      |  
|                                               |  |         |  |                    |        |   |      |   |        |  
|                                               |  |         |  |                    | 8,041  |   |      |   | 3,100  |  
|Less accumulated depreciation and amortization |  |         |  |                    | (3,235 | ) |      |   | (2,252 | )
|                                               |  |         |  |                    |        |   |      |   |        |  
|Total property and equipment, net              |  |         |  | $                  | 4,806  |   |      | $ | 848    |  
|                                               |  |         |  |                    |        |   |      |   |        |  



|                                                        |  |                         |     |  |      |   |     | 
|------------------------------------------------------- |  | ----------------------- | --- |  | ---- | - | --- | 
|                                                        |  | Year Ended December 31, |    
|                                                        |  | 2010                    |     |  | 2009 |  
|                                                        |  | (In thousands)          |    
|Depreciation and amortization of property and equipment |  | $                       | 906 |  |      | $ | 565 | 



|4. | DEFERRED REVENUE:
|-- | -----------------

Deferred Revenue consists of:



| |  |  | billing in excess of costs and earnings on uncompleted contracts;
| | - |  | -----------------------------------------------------------------



| |  |  | unearned revenues on licensing of the Companys intellectual property (as discussed further below); and
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | deferred rent revenue related to Clean Coals lease of its RC facilities (also as discussed further below).
| | - |  | -----------------------------------------------------------------------------------------------------------



F-11



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Arch Coal

In June 2010, the Company entered into a Development and License Agreement with Arch Coal, Inc. (Arch) in which the Company
licensed, on an exclusive non-transferable basis, the use of certain of its technology to enhance coal by the application of additives and received a non-refundable license fee of $2 million in cash. The Company expects to recognize these revenues
as the technology is further evaluated and developed and the licensee realizes the benefits of the technology. The Company expects to sell certain chemical additives to the licensee, which is expected to enhance the licensees coal. Future
revenues, which are expected to be recognized in the next year are included in current deferred revenues. The Company expects to recognize approximately $1.3 million by the end of 2011.

Clean Coal

In June 2010, Clean Coal executed agreements to lease its RC facilities. These agreements provided for, among other things, a prepaid rent payment of $9 million for both leases that was made
before June 30, 2010.

During 2010, the Company has recognized $10.4 million in total rent revenues which includes $1.8
million from the initial prepaid rent payment. Future revenues expected to be recognized with respect to the prepaid rent paid by the lessee are included in deferred revenues for the current period and in deferred revenues, accrued warranty and
other for the long-term period, and are as follows:



|                         |  |                             |       | 
|------------------------ |  | --------------------------- | ----- | 
|Year ending December 31, |  | Expected revenuerecognition |      
|                         |  | (In thousands)              |      
|2011                     |  | $                           | 3,600 | 
|2012                     |  |                             | 3,600 | 
|                         |  |                             |       | 
|                         | 
|Total                    |  | $                           | 7,200 | 
|                         |  |                             |       | 



|5. | GOVERNMENT AND INDUSTRY FUNDED CONTRACTS:
|-- | -----------------------------------------

The Company has participated in several contracts awarded by the Department of Energy (the DOE). The Company typically
invoices the DOE and industry cost-share partners monthly for labor and expenditures plus estimated overhead factors, less any cost share amounts. The contracts under which the Company has performed are subject to audit and future appropriation of
funds by Congress. The Company has not experienced adverse adjustments as a result of government audits, however, the government audits for years ended 2004 through 2010 have not yet been finalized.



|                                         |  |                    |        |  |      |   |       | 
|---------------------------------------- |  | ------------------ | ------ |  | ---- | - | ----- | 
|                                         |  | As of December 31, |       
|                                         |  | 2010               |        |  | 2009 |  
|                                         |  | (In thousands)     |       
|Revenue recognized related to CC Segment |  | $                  | 2,073  |  |      | $ | 1,526 | 
|Unearned contract amount                 |  | $                  | 18,800 |  |      | $ | 1,600 | 
|Expected revenue in 2011                 |  | $                  | 2,400  |  |      | $ | 0     | 



|6. | INVESTMENTS IN UNCONSOLIDATED ENTITIES:
|-- | ---------------------------------------

Carbon Solutions

In October 2008, the Company entered into the Joint Development Agreement (the JDA), a Limited Liability Company Agreement (the LLC Agreement) and other related agreements with
ECP, for the purposes of funding and constructing the activated carbon manufacturing facility in Red River Parish, Louisiana and similar projects.

Also in October 2008, the Company entered into a Securities Purchase Agreement (SPA) providing for the potential sale to ECP of 1,800,000 shares of Series A Convertible Preferred Stock and
1,800,000 shares of Series B Convertible Preferred Stock. The Company terminated the SPA on March 23, 2010.

Under the JDA
and the LLC Agreement, the Company transferred the development assets and certain liabilities relating to the production, processing and supply of AC to the Companys then wholly-owned subsidiaries Red River, Morton, Underwood and
Crowfoot Supply and subsequently transferred the equity in these subsidiaries and certain contracts, goodwill and intellectual property relating to its AC supply business to Carbon Solutions as our $18.4 million initial contribution.

As of June 30, 2009, the Company deconsolidated Carbon Solutions as the Company no longer held a controlling interest in Carbon
Solutions as the joint venture partner converted a portion of its preferred equity contribution to ordinary capital contributions as of that date. Additional preferred equity contributions have been converted in 2010 and accordingly, the
Companys interest decreased to 25.9% as of December 31, 2010. After the deconsolidation, the Company has accounted for the investment in Carbon Solutions under the equity method.



F-12



---

In addition to the JDA and LLC Agreement, the Company has the following related agreements
with Carbon Solutions:

Master Services Agreement. Pursuant to a Master Services Agreement (MSA), the
Company provides certain accounting, administrative, oversight, and other services to Carbon Solutions at agreed-upon rates.



|                                                                |  |                    |     |  |      |   |       | 
|--------------------------------------------------------------- |  | ------------------ | --- |  | ---- | - | ----- | 
|                                                                |  | As of December 31, |    
|                                                                |  | 2010               |     |  | 2009 |  
|                                                                |  | (In thousands)     |    
|Service revenue related to MSA included in EC Segment           |  | $                  | 293 |  |      | $ | 1,100 | 
|Amounts due from Carbon Solutions included in trade receivables |  | $                  | 55  |  |      | $ | 161   | 

Intellectual Property License. Pursuant to an IP License Agreement, the Company has licensed to
Carbon Solutions all intellectual property relating primarily to the manufacture of AC (that was not transferred to Carbon Solutions under the JDA) or any application or use of AC competitive with the control of mercury emissions from coal-fired
power plants (the Field) on an exclusive, perpetual, royalty-free basis and has provided certain rights of first refusal to Carbon Solutions with respect to intellectual property relating to the Field the Company may develop in the
future.

Under the terms of the JDA, the Company is required to indemnify ECP and Carbon Solutions for certain damages and
expenses they have incurred with respect to the Companys litigation with Norit Americas, Inc. (Norit) (See Note 9). As of December 31, 2010, the Company has recorded a liability to Carbon Solutions of approximately $27.4
million related to such damages and expenses paid by Carbon Solutions. These amounts have been classified as non-current liabilities as the Company expects to satisfy the obligation through resources not involving current assets.



F-13



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Following is unaudited summarized information as to the assets, liabilities and results
of operations of Carbon Solutions:



|                                               |  |                             |         |   |                             |   |         |  
|---------------------------------------------- |  | --------------------------- | ------- | - | --------------------------- | - | ------- | -
|                                               |  | As ofDecember 31, 2010      |         |   | As ofDecember 31, 2009      |  
|                                               |  | (In thousands)              |        
|Current assets                                 |  | $                           | 40,589  |   |                             | $ | 29,029  |  
|Property, equipment and other long term assets |  |                             | 325,769 |   |                             |   | 230,588 |  
|                                               |  |                             |         |   |                             |   |         |  
|Total assets                                   |  | $                           | 366,358 |   |                             | $ | 259,617 |  
|                                               |  |                             |         |   |                             |   |         |  
|                                               |  |                            
|Total liabilities                              |  | $                           | 214,638 |   |                             | $ | 95,680  |  
|                                               |  |                             |         |   |                             |   |         |  
|                                               |  |                            
|                                               |  | Year EndedDecember 31, 2010 |         |   | Year EndedDecember 31, 2009 |  
|                                               |  | (In thousands)              |        
|Net revenue                                    |  | $                           | 18,765  |   |                             | $ | 7,482   |  
|Net loss                                       |  | $                           | (27,806 | ) |                             | $ | (7,268  | )

As of December 31, 2010, a demand note payable to ECP for monies advanced in the amount of $193.8
million is included in Carbon Solutions liabilities.

Clean Coal Solutions Services

As discussed in Note 1 above, on January 20, 2010, the Company, together with NexGen, formed Clean Coal Solutions Services, LLC. The
Companys investment of $401,000 as of December 31, 2010 includes its share of CCSS income since its formation, which has been accounted for under the equity method of accounting.

Following is unaudited summarized information as to assets, liabilities and results of operations of CCSS:



|                                               |  |                             |        | 
|---------------------------------------------- |  | --------------------------- | ------ | 
|                                               |  | As of December 31, 2010     |       
|                                               |  | (In thousands)              |       
|Current assets                                 |  | $                           | 34,534 | 
|Property, equipment and other long term assets |  |                             | 17,644 | 
|                                               |  |                             |        | 
|Total assets                                   |  | $                           | 52,178 | 
|                                               |  |                             |        | 
|                                               | 
|Total liabilities                              |  | $                           | 33,896 | 
|                                               |  |                             |        | 
|                                               | 
|                                               |  | Year Ended December 31,2010 |       
|                                               |  | (In thousands)              |       
|Net revenue                                    |  | $                           | 90,854 | 
|Net income- attributed to CCSS                 |  | $                           | 236    | 



|7. | JOINT VENTURE AND TRANSACTIONS WITH NEXGEN:
|-- | -------------------------------------------

In November 2006, the Company sold a 50% interest in its RC technology to a joint venture called Clean Coal
Solutions, LLC, which was formed in 2006 with NexGen, to market RC technology. The Operating Agreement requires NexGen and the Company to each pay 50% of the costs of operating Clean Coal and specifies certain duties that both parties are obligated
to perform.



F-14



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



At present, we are considered the primary economic beneficiary of this joint venture and
have consolidated the accounts of Clean Coal. Clean Coals function is to supply chemicals, additives, equipment and technical services to cyclone fired boiler users, but Clean Coals primary purpose is to put into operation facilities
that produce RC that qualifies for tax credits that are available under Section 45 of the Internal Revenue Code (Section 45 Tax Credits). Clean Coal qualified two facilities in 2009 for such purposes and monetized those facilities.
As discussed in Note 2 above, NexGen has the right to maintain its 50% interest in Clean Coal by paying us an additional $4 million. Under the terms of the agreement, as amended, NexGen may elect to retain its interest in Clean Coal by paying the
Company up to $4 million (plus any accrued interest under the notes described below) as follows: (a) $1.8 million under NexGens two-year promissory notes issued to the Company in June 2010, plus (b) 25% of cash distributions (other
than for income taxes) due to NexGen from Clean Coal. NexGens promissory notes are shown as notes receivable, bear interest at 5% per annum, are payable out of 35% of cash distributions to NexGen and are secured by NexGens interest
in Clean Coal. NexGen will make payments from cash that would otherwise be distributable to NexGen under the Clean Coal Operating Agreement. NexGen is not obligated to make those payments, but if it does not do so, it will forfeit a part of its
interest in Clean Coal in direct proportion to the amount of $4 million that it elects not to pay, if any. If NexGen fails to make any one payment, it cannot reclaim its interest by making later payments. In no event are we required to refund any of
the cash payments made to us by NexGen.

Following is unaudited summarized information as to assets, liabilities and results of
operations of Clean Coal:



|                                                                   |  |                    |       |  |      |   |       | 
|------------------------------------------------------------------ |  | ------------------ | ----- |  | ---- | - | ----- | 
|                                                                   |  | As of December 31, |      
|                                                                   |  | 2010               |       |  | 2009 |  
|                                                                   |  | (In thousands)     |      
|Primary assets of Clean Coal                                       |  |                    |       |  |      |   |       | 
|Cash and cash equivalents                                          |  | $                  | 1,335 |  |      | $ | 703   | 
|Accounts receivable, net                                           |  |                    | 4,835 |  |      |   | 0     | 
|Chemical inventory and equipment for resale                        |  |                    | 0     |  |      |   | 2,300 | 
|Property plant and equipment including assets under lease, net     |  |                    | 5,066 |  |      |   | 53    | 
|                                                                   |  |                   
|Primary liabilities of Clean Coal                                  |  |                    |       |  |      |   |       | 
|Accounts payable and accrued liabilities                           |  | $                  | 362   |  |      | $ | 1,800 | 
|Deferred revenue, current                                          |  |                    | 3,600 |  |      |   | 1,000 | 
|Deferred revenue, long-term                                        |  |                    | 3,600 |  |      |   | 0     | 
|Net costs included in net operating loss related to our RC efforts |  | $                  | 318   |  |      | $ | 388   | 



|8. | STOCKHOLDERS EQUITY (DEFICIT) (RESTATED):
|-- | ------------------------------------------

Stockholders equity (deficit) for the fiscal year ended December 31, 2010 has been restated. The restated portion of
stockholders equity (deficit) for the fiscal year ended December 31, 2010 includes a $15.7 million reduction attributable to the recognition of a valuation allowance against the Companys net deferred tax assets. See Notes 12 and 15
for additional discussion.

Pursuant to certain agreements, on March 23, 2010, the Company issued 143,885 shares of its
Common Stock to Arch and received proceeds, net of issuance costs, totaling $974,000. The Company has filed a registration statement, which was effective September 1, 2010, to register these shares in accordance with provisions of the
registration rights agreement, which was executed at the time of the stock subscription agreement.

For the years ended
December 31, 2010 and 2009, the non-controlling interest portion of stockholders equity (deficit) includes a non-controlling interest related to Clean Coal.

Since 2003, the Company has had several stock and option plans, in addition to the Amended and Restated 2007 Equity Incentive Plan dated
as of August 31, 2010 (the 2007 Plan) and the ADA-ES, Inc. Profit Sharing Retirement Plan, which is a plan qualified under Section 401(k) of the Internal Revenue Code (the 401(k) Plan) described below. These plans
allow the Company to issue stock or options for shares of Common Stock to employees, the Board of Directors and non-employees.



F-15



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Following is a table of options activity for the two years ended December 31, 2010:



|                                       |  |                             |         |   |                     |  |        |                               |  |   |       | 
|-------------------------------------- |  | --------------------------- | ------- | - | ------------------- |  | ------ | ----------------------------- |  | - | ----- | 
|Options Activity                       |  | Employee andDirectorOptions |         |   | Non-EmployeeOptions |  |        | WeightedAverageExercise Price | 
|Options Outstanding, December 31, 2008 |  |                             | 272,806 |   |                     |  | 9,000  |                               |  | $ | 10.21 | 
|Options granted                        |  |                             | 0       |   |                     |  | 0      |                               |  |   | 0     | 
|Options expired                        |  |                             | (1,291  | ) |                     |  | 0      |                               |  |   | 13.80 | 
|Options exercised                      |  |                             | (1,250  | ) |                     |  | 0      |                               |  |   | 2.80  | 
|                                       |  |                             |         |   |                     |  |        |                               |  |   |       | 
|Options Outstanding, December 31, 2009 |  |                             | 270,265 |   |                     |  | 9,000  |                               |  |   | 10.23 | 
|Options granted                        |  |                             | 0       |   |                     |  | 0      |                               |  |   | 0     | 
|Options expired                        |  |                             | (14,495 | ) |                     |  | (9,000 | )                             |  |   | 14.11 | 
|Options exercised                      |  |                             | (41,850 | ) |                     |  | 0      |                               |  |   | 8.60  | 
|                                       |  |                             |         |   |                     |  |        |                               |  |   |       | 
|Options Outstanding, December 31, 2010 |  |                             | 213,920 |   |                     |  | 0      |                               |  | $ | 10.18 | 
|                                       |  |                             |         |   |                     |  |        |                               |  |   |       | 

Following is a table of aggregate intrinsic value of options exercised and exercisable for the two years
ended December 31, 2010:



|                                     |  |       |         |   |                    |   |      | 
|------------------------------------ |  | ----- | ------- | - | ------------------ | - | ---- | 
|Aggregate Intrinsic Value of Options |  | Value |         |   | AverageMarketPrice |  
|Exercised, December 31, 2009         |  | $     | 1,000   |   |                    | $ | 3.70 | 
|Exercised, December 31, 2010         |  | $     | (86,000 | ) |                    | $ | 6.23 | 



|                               |  |       |            |   |             |   |       | 
|------------------------------ |  | ----- | ---------- | - | ----------- | - | ----- | 
|                               |  | Value |            |   | MarketPrice |  
|Exercisable, December 31, 2009 |  | $     | (1,200,000 | ) |             | $ | 6.10  | 
|Exercisable, December 31, 2010 |  | $     | 209,000    |   |             | $ | 11.16 | 

Stock options outstanding and exercisable at December 31, 2010 are summarized in the table below:



|                         |  |                                            |         |  |                              |   |       |                                          |  |  |     | 
|------------------------ |  | ------------------------------------------ | ------- |  | ---------------------------- | - | ----- | ---------------------------------------- |  |  | --- | 
|Range of Exercise Prices |  | Number ofOptionsOutstanding andExercisable |         |  | WeightedAverageExercisePrice |   |       | WeightedAverageRemainingContractualLives | 
|$2.80                    |  |                                            | 8,165   |  |                              | $ | 2.80  |                                          |  |  | 2.8 | 
|$8.60 - $10.20           |  |                                            | 143,743 |  |                              | $ | 8.66  |                                          |  |  | 4.9 | 
|$13.80 - $15.20          |  |                                            | 62,012  |  |                              | $ | 14.70 |                                          |  |  | 3.5 | 
|                         |  |                                            |         |  |                              |   |       |                                          |  |  |     | 
|                         |  |                                            | 213,920 |  |                              | $ | 10.18 |                                          |  |  | 4.4 | 
|                         |  |                                            |         |  |                              |   |       |                                          |  |  |     | 

No stock options were granted and/or vested during the year ended December 31, 2010.

Although the Company adopted the 2007 Plan in 2007, it was further amended and restated as of August 31, 2010 to make non-material
changes to assure Internal Revenue Code Section 409A compliance and to increase the non-management director annual grant limit to 15,000 shares of Common Stock from 10,000 shares. The 2007 Plan authorizes the issuance to employees, directors
and non-employees of up to 745,779 shares of Common Stock, either as restricted stock grants or to underlie options to purchase shares of the Companys Common Stock.



F-16



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



A summary of the status of the non-vested shares under the 2007 Plan for the two years
ended December 31, 2010 is presented below:



|                                |  |        |         |   |                                      |   |      | 
|------------------------------- |  | ------ | ------- | - | ------------------------------------ | - | ---- | 
|Non-vested Shares               |  | Shares |         |   | WeightedAverageGrant DateFair 
Value |  
|Non-vested at December 31, 2008 |  |        | 110,786 |   |                                      | $ | 8.82 | 
|Granted                         |  |        | 67,689  |   |                                      |   | 5.05 | 
|Vested                          |  |        | (50,978 | ) |                                      |   | 8.81 | 
|Forfeited                       |  |        | (11,184 | ) |                                      |   | 8.37 | 
|                                |  |        |         |   |                                      |   |      | 
|Non-vested at December 31, 2009 |  |        | 116,313 |   |                                      | $ | 6.65 | 
|Granted                         |  |        | 34,175  |   |                                      |   | 5.94 | 
|Vested                          |  |        | (52,634 | ) |                                      |   | 8.06 | 
|Forfeited                       |  |        | (4,918  | ) |                                      |   | 5.55 | 
|                                |  |        |         |   |                                      |   |      | 
|Non-vested at December 31, 2010 |  |        | 92,936  |   |                                      | $ | 5.46 | 
|                                |  |        |         |   |                                      |   |      | 

In 2009, the Company revised its 401(k) Plan. The revision permits the Company to issue shares of its
Common Stock to employees to satisfy its obligation to match employee contributions under the terms of the Plan in lieu of matching contributions in cash. The Company reserved 300,000 shares of its Common Stock for this purpose. The value of Common
Stock issued as matching contributions under the Plan is determined based on the per share market value of our Common Stock on the date of issuance.



F-17



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Following is a table summarizing the activity under various stock issuance plans for the
two years ended December 31, 2010:



|                                                                    |  |           |          |   |             |  |         |                  |  |  |        |  
|------------------------------------------------------------------- |  | --------- | -------- | - | ----------- |  | ------- | ---------------- |  |  | ------ | -
|Stock Issuance Plans                                                | 
|                                                                    |  | 2007 Plan |          |   | 401(k) Plan |  |         | OtherStock Plans | 
|Balance available, December 31, 2008                                |  |           | 418,657  |   |             |  | 300,000 |                  |  |  | 26,065 |  
|Evergreen addition                                                  |  |           | 107,224  |   |             |  | 0       |                  |  |  | 0      |  
|Restricted stock issued to new, anniversary and executive employees |  |           | (67,689  | ) |             |  | 0       |                  |  |  | 0      |  
|Restricted stock repurchased                                        |  |           | 11,184   |   |             |  | 0       |                  |  |  | 0      |  
|Stock issued based on incentive and matching programs to employees  |  |           | (5,500   | ) |             |  | (71,100 | )                |  |  | 0      |  
|Stock issued to executives, directors and non- employees            |  |           | (196,644 | ) |             |  | 0       |                  |  |  | (7,000 | )
|                                                                    |  |           |          |   |             |  |         |                  |  |  |        |  
|Balance available, December 31, 2009                                |  |           | 267,232  |   |             |  | 228,900 |                  |  |  | 19,065 |  
|Evergreen addition                                                  |  |           | 33,800   |   |             |  | 0       |                  |  |  | 0      |  
|Restricted stock issued to new, anniversary and executive employees |  |           | (34,175  | ) |             |  | 0       |                  |  |  | 0      |  
|Restricted stock repurchased                                        |  |           | 4,918    |   |             |  | 0       |                  |  |  | 0      |  
|Stock issued based on incentive and matching programs to employees  |  |           | (51,345  | ) |             |  | (45,106 | )                |  |  | 0      |  
|Stock issued to executives, directors and non- employees            |  |           | (126,487 | ) |             |  | 0       |                  |  |  | (7,000 | )
|                                                                    |  |           |          |   |             |  |         |                  |  |  |        |  
|Balance available, December 31, 2010                                |  |           | 93,943   |   |             |  | 183,794 |                  |  |  | 12,065 |  
|                                                                    |  |           |          |   |             |  |         |                  |  |  |        |  



|                                                                      |  |                |     |  |  |   |     |  |  |   |    | 
|--------------------------------------------------------------------- |  | -------------- | --- |  |  | - | --- |  |  | - | -- | 
|Expense recognized under the different plans for the two years ended: |  | (In thousands) |    
|December 31, 2009                                                     |  | $              | 954 |  |  | $ | 204 |  |  | $ | 43 | 
|                                                                      |  |                |     |  |  |   |     |  |  |   |    | 
|December 31, 2010                                                     |  | $              | 983 |  |  | $ | 282 |  |  | $ | 41 | 
|                                                                      |  |                |     |  |  |   |     |  |  |   |    | 



|                                                                       |  |                |     |  |  |   |   |  |  |   |   | 
|---------------------------------------------------------------------- |  | -------------- | --- |  |  | - | - |  |  | - | - | 
|Unrecognized expense under the different plans for the two year ended: |  | (In thousands) |    
|December 31, 2009                                                      |  | $              | 363 |  |  | $ | 0 |  |  | $ | 0 | 
|                                                                       |  |                |     |  |  |   |   |  |  |   |   | 
|December 31, 2010                                                      |  | $              | 341 |  |  | $ | 0 |  |  | $ | 0 | 
|                                                                       |  |                |     |  |  |   |   |  |  |   |   | 



|9. | COMMITMENTS AND CONTINGENCIES:
|-- | ------------------------------

Retirement Plan  The Company assumed a defined contribution and 401(k) plan covering all eligible employees as of
January 1, 2003 which was revised in 2009, and makes matching contributions to the plan in the form of cash and its common stock. Such contributions (in 000s) for the years ended December 31, are as follows:



|                                |  |      |     |  |      |   |     | 
|------------------------------- |  | ---- | --- |  | ---- | - | --- | 
|                                |  | 2010 |     |  | 2009 |  
|Matching contributions in stock |  | $    | 282 |  |      | $ | 204 | 
|Matching contributions in cash  |  |      | 0   |  |      |   | 63  | 
|                                |  |      |     |  |      |   |     | 
|Total                           |  | $    | 282 |  |      | $ | 267 | 
|                                |  |      |     |  |      |   |     | 



F-18



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Performance Guarantee on AC Injection Systems  Under certain
contracts to supply ACI systems, the Company may guarantee the performance of the associated equipment for a specified period to the owner of the power plant. The Company may also guarantee the achievement of a certain level of mercury removal based
upon the injection of a specified quantity of a qualified AC at a specified rate given other plant operating conditions. In the event the equipment fails to perform as specified, the Company may have an obligation to correct or replace the
equipment. In the event the level of mercury removal is not achieved, the Company may have a make right obligation within the contract limits. The Company assesses the risks inherent in each applicable contract and accrues an amount that
is based on estimated costs that may be incurred over the performance period of the contract. Such costs are included in the Companys accrued warranty and other liabilities in the accompanying consolidated balance sheets. Any warranty costs
paid out in the future will be charged against the accrual. The adequacy of warranty accrual balance is assessed at least quarterly based on the then current facts and circumstances and adjustments are made as needed. The change in the carrying
amount of the Companys performance guaranties for the years ended December 31, are as follows:



|                               |  |                    |     |   |      |   |     |  
|------------------------------ |  | ------------------ | --- | - | ---- | - | --- | -
|                               |  | As of December 31, |    
|                               |  | 2010               |     |   | 2009 |  
|                               |  | (In thousands)     |    
|Beginning balance              |  | $                  | 604 |   |      | $ | 546 |  
|Performance guaranties accrued |  |                    | 74  |   |      |   | 138 |  
|Expenses paid                  |  |                    | (66 | ) |      |   | (80 | )
|                               |  |                    |     |   |      |   |     |  
|Ending balance                 |  | $                  | 612 |   |      | $ | 604 |  
|                               |  |                    |     |   |      |   |     |  

In some cases, a performance bond may be purchased and held for the period of the warranty that can be
used to satisfy the obligation. At December 31, 2010, the Company had a standby letter of credit for $105,000 related to an installation of an ACI system. This commitment was not recorded on the Companys consolidated balance sheet, as the
Company does not expect the funds to be called upon under the letter of credit.

Purchase Obligations  As
of December 31, 2010, the Company expects to pay purchase obligations totaling approximately $433,000 primarily for the purchase of components and services related to our Emission Control Segment in 2011.

Operating Lease Obligations  The Company leases office facilities under non-cancellable operating lease agreements.
Our facilities leases generally provide for periodic rent increases and renewal options. Our operating lease agreements expire on August 31, 2012. Annual minimum commitments under the leases are shown in the table below:



|                                  |  |                                         |     | 
|--------------------------------- |  | --------------------------------------- | --- | 
|                                  |  | OperatingLeaseCommitments(In thousands) |    
|Years ending December 31,         |  |                                         |     | 
|2011                              |  | $                                       | 240 | 
|2012                              |  |                                         | 162 | 
|                                  |  |                                         |     | 
|                                  | 
|Total operating lease commitments |  | $                                       | 402 | 
|                                  |  |                                         |     | 

Rental expense incurred for the years ended December 31, is as follows:



|             |  |                |     |  |      |   |     | 
|------------ |  | -------------- | --- |  | ---- | - | --- | 
|             |  | 2010           |     |  | 2009 |  
|             |  | (In thousands) |    
|Rent expense |  | $              | 339 |  |      | $ | 259 | 



F-19



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



The Company has subleased approximately 5,300 square feet of combined office and
warehouse space to a related third party. The term of this lease runs through August 31, 2012. Future annual sublease payments are expected to be received as follows:



|                          |  |                |     | 
|------------------------- |  | -------------- | --- | 
|                          |  | (In thousands) |    
|Years ending December 31, |  |                |     | 
|2011                      |  | $              | 84  | 
|2012                      |  |                | 56  | 
|                          |  |                |     | 
|Total                     |  | $              | 140 | 
|                          |  |                |     | 

Litigation  The Company is involved in litigation with Norit. The Norit suit has been
moved to arbitration with final arguments in this action conducted on February 8, 2011. The Company has made no estimate of potential loss resulting from the action as such losses, if any, cannot be determined at this time. Accordingly, no
provision for a loss has been recognized in these financial statements other than the potential indemnity obligations related to Carbon Solutions discussed elsewhere and below.

In December 2010, we reached an agreement with Calgon Carbon Corporation (Calgon) settling their judgment award to us for $7.2 million which is recognized net of certain additional fees in
other income (expense) on the accompanying consolidated statement of operations.

Carbon Solutions

In 2008, the Company made certain guaranties and undertook other obligations related to Carbon Solutions. No liabilities associated with
such guaranties and obligations were recorded on the Companys consolidated balance sheet as the Company does not expect such guaranties and obligations to be called upon.

Summaries of the guaranties and obligations related to Carbon Solutions are as follows:



|                                    |  |                        |        | 
|----------------------------------- |  | ---------------------- | ------ | 
|                                    |  | As ofDecember 31, 2010 |       
|                                    |  | (In thousands)         |       
|AC Facility construction contract 1 |  | $                      | 12,300 | 
|Equipment contracts 2               |  |                        | 6,700  | 
|Sales contract A guarantee 3        |  |                        | 10,000 | 
|Sales contract B guarantee 4        |  |                        | 1,000  | 
|                                    |  |                        |        | 
|                                    | 
|Total guaranties and obligations    |  | $                      | 30,000 | 
|                                    |  |                        |        | 



|1 | The Company has guaranteed all amounts owed by Red River under its construction contract for the AC Facility. The amount shown is the approximate
remaining obligation under the contract. Red River can terminate this contract at any time and would be liable for certain items.
|- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|2 | Red River entered into four contracts with an independent equipment supplier for the purchase of certain equipment. A parent guaranty is applicable to
both the Company and our partner in the joint venture. The amount shown is the approximate remaining obligation remaining under these contracts. Red River may terminate these contracts at any time and would be liable for certain items.
|- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|3 | The Company has also guaranteed the obligations of Red River under an amended sales contract with another major electric power generating company. Both
parties are entitled to require specific performance of the other in limited circumstances when the cover remedies prove inadequate. No later than five business days after the third party debt financing portion for the AC Facility is obtained, each
party is obligated to deliver to the other a $10 million standby, unconditional, irrevocable letter of credit to secure the obligations to the other party in the event of default.
|- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|4 | The Company has also guaranteed the obligations of Red River under an amended sales contract with a different major electric power generation company.
The guaranty is effective until Red River has fulfilled its contractual obligations, which is estimated to occur in the second quarter of 2012, and may be terminated earlier based on Red Rivers financial position or the credit rating of its
debt financing for the AC Facility. This is the Companys maximum aggregate liability under the guaranty.
|- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-20



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



Under the terms of the JDA, the Company is required to indemnify ECP and Carbon
Solutions for certain damages and expenses they incur with respect to the Companys litigation and arbitration with Norit described in Part II, Item 1.

Under terms of agreements with Carbon Solutions, as amended in August, 2009, Red River has agreed to reimburse the Company and ECP in the event they are required to make payments related to these
guaranties and guaranties provided by ECP and has granted a secured interest in its assets to ADA and ECP to secure the reimbursement agreement and any loans ECP makes to Red River. Carbon Solutions has guaranteed the obligations of Red River under
the reimbursement and loan agreement and has pledged its equity interest in Red River to the Company and ECP as security for this guaranty. The Company has assigned its rights under these agreements to ECP, and any amounts payable to the Company
would be paid directly to ECP until ECPs preferred equity in Carbon Solutions is fully redeemed or converted and all loans to Red River have been paid in full.

Following is unaudited contributions made by ECP:



|                                                                                            |  |                    |         |  |      |   |        | 
|------------------------------------------------------------------------------------------- |  | ------------------ | ------- |  | ---- | - | ------ | 
|                                                                                            |  | As of December 31, |        
|                                                                                            |  | 2010               |         |  | 2009 |  
|                                                                                            |  | (In thousands)     |        
|Preferred equity contributions                                                              |  | $                  | 89,300  |  |      | $ | 98,500 | 
|Loans to Red River by secured notes bearing interest at 12% per annum compounded quarterly. |  | $                  | 193,800 |  |      | $ | 76,300 | 



|10. | LEASING ACTIVITIES:
|--- | -------------------

Clean Coal leased two RC Facilities in June 2010 to an independent third party. The leases have initial terms that run through December 31, 2012 and automatically renew for annual terms through the
end of 2019, subject to a number of termination clauses. Clean Coal receives fixed contingent rent payments as defined in the lease agreements. In addition, the lessee paid $9 million at the inception of the lease, which was recorded as deferred
revenue and is being amortized into revenue under the straight-line method over the initial term of the lease through December 31, 2012. During the year ended December 31, 2010, $1.8 million of deferred revenue was recognized. Contingent
rental income received during 2010 totaled $6 million. Future minimum lease payments shown below do not include contingent rentals, which are based on the production of RC.



F-21



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



The following is a schedule, by year, of total fixed lease payments to be received, if
all term extension options are exercised, through December 31, 2019.



|                             |  |                                                 |         | 
|---------------------------- |  | ----------------------------------------------- | ------- | 
|                             |  | Operating lease 
paymentsexpected(In thousands) |        
|Years ending December 31,    |  |                                                 |         | 
|2011                         |  | $                                               | 7,963   | 
|2012                         |  |                                                 | 8,729   | 
|2013                         |  |                                                 | 12,805  | 
|2014                         |  |                                                 | 13,353  | 
|2015                         |  |                                                 | 13,941  | 
|Thereafter                   |  |                                                 | 61,483  | 
|                             |  |                                                 |         | 
|Total minimum lease payments |  | $                                               | 118,274 | 
|                             |  |                                                 |         | 



|11. | MAJOR CUSTOMERS:
|--- | ----------------

Sales to unaffiliated customers who represent 10% or more of the Companys sales were as follows:



|         |  |                    |    |  |      |  |    | 
|-------- |  | ------------------ | -- |  | ---- |  | -- | 
|         |  | As of December 31, |   
|         |  | 2010               |    |  | 2009 | 
|Customer |  | (%)                |    |  | (%)  | 
|A        |  |                    | 47 |  |      |  | 0  | 
|B        |  |                    | 1  |  |      |  | 15 | 
|C        |  |                    | 1  |  |      |  | 13 | 

The Companys receivables were as follows:



|                                     |  |                                                    |   |  |                         |  |    | 
|------------------------------------ |  | -------------------------------------------------- | - |  | ----------------------- |  | -- | 
|                                     |  | Number ofcustomers thatmade uppercentageof balance |   |  | Percentageof balance(%) | 
|Receivables for the two years ended: |  |                                                    |   |  |                         |  |    | 
|December 31, 2010                    |  |                                                    | 1 |  |                         |  | 67 | 
|December 31, 2009                    |  |                                                    | 2 |  |                         |  | 51 | 



|12. | INCOME TAXES (RESTATED):
|--- | ------------------------

Income taxes are accounted for under the asset and liability approach. Under this method, deferred tax assets and liabilities are
recognized for the expected future tax consequences of differences between the carrying amounts of assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the differences are expected to reverse.
A valuation allowance is provided if and when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. The effect on deferred tax assets and liabilities of a change in tax
rates is recognized in income in the period when the change is enacted. At each reporting date, management reviews existing income tax assessments and, if necessary, revises them to reflect changed circumstances. In a situation where recent losses
have been incurred, the accounting standards require convincing evidence that there will be sufficient future taxable income to realize deferred tax assets.

In August 2012, after extensive discussions with the SECs Division of Corporation Finance and Office of the Chief Accountant and the Companys outside tax experts, independent registered public
accounting firm, Audit Committee and Board of Directors, management determined that the objective and verifiable negative evidence represented by historical losses outweighed more subjective positive evidence of anticipated future income. As a
result, management determined it necessary to record a full valuation allowance against the Companys net deferred tax assets and is restating its consolidated financial statements with this Amendment for the fiscal year ended December 31,
2010. See Note 15 for additional discussion.

The Company has recorded a full valuation allowance against the net deferred tax
assets of $15.7 million as of December 31, 2010.

The Companys income tax (expense) benefit from continuing
operations consists of the following:



|                             |  |                    |        |   |      |   |       |  
|---------------------------- |  | ------------------ | ------ | - | ---- | - | ----- | -
|                             |  | As of December 31, |       
|                             |  | 2010(restated)     |        |   | 2009 |  
|                             |  | (In thousands)     |       
|Current                      |  | $                  | 0      |   |      | $ | (9    | )
|Deferred                     |  |                    | (7,093 | ) |      |   | 5,555 |  
|                             |  |                    |        |   |      |   |       |  
|Income tax (expense) benefit |  | $                  | (7,093 | ) |      | $ | 5,546 |  
|                             |  |                    |        |   |      |   |       |  



F-22



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



The following lists the Companys deferred tax assets and liabilities:



|                                                         |  |                    |         |   |      |   |       | 
|-------------------------------------------------------- |  | ------------------ | ------- | - | ---- | - | ----- | 
|                                                         |  | As of December 31, |        
|                                                         |  | 2010(restated)     |         |   | 2009 |  
|                                                         |  | (In thousands)     |        
|Deferred tax assets:                                     |  |                    |         |   |      |   |       | 
|Deferred compensation, warranty and other                |  | $                  | 223     |   |      | $ | 229   | 
|Allowance for doubtful accounts                          |  |                    | 4       |   |      |   | 7     | 
|Deferred revenues, compensation and other                |  |                    | 306     |   |      |   | 371   | 
|Net equity in net income/loss of unconsolidated entities |  |                    | 459     |   |      |   | 0     | 
|Net operating loss carryforward                          |  |                    | 14,072  |   |      |   | 6,235 | 
|Tax credits                                              |  |                    | 753     |   |      |   | 568   | 
|                                                         |  |                    |         |   |      |   |       | 
|Total tax assets                                         |  |                    | 15,817  |   |      |   | 7,410 | 
|                                                         |  |                    |         |   |      |   |       | 
|                                                         |  |                   
|Deferred tax liabilities                                 |  |                    |         |   |      |   |       | 
|Prepaid expenses                                         |  |                    | 122     |   |      |   | 107   | 
|Net equity in net income/loss of unconsolidated entities |  |                    | 0       |   |      |   | 187   | 
|Property and intangible asset differences                |  |                    | 38      |   |      |   | 23    | 
|                                                         |  |                    |         |   |      |   |       | 
|Total tax liabilities                                    |  |                    | 160     |   |      |   | 317   | 
|                                                         |  |                    |         |   |      |   |       | 
|Deferred tax assets, net of liabilities                  |  |                    | 15,657  |   |      |   | 7,093 | 
|Valuation allowance                                      |  |                    | (15,657 | ) |      |   | 0     | 
|                                                         |  |                    |         |   |      |   |       | 
|Net deferred tax assets                                  |  | $                  | 0       |   |      | $ | 7,093 | 
|                                                         |  |                    |         |   |      |   |       | 

A reconciliation of expected federal income taxes on income from operations at statutory rates with the
(expense) benefit for income taxes follows:



|                                             |  |                    |     |    |      |  |    |   
|-------------------------------------------- |  | ------------------ | --- | -- | ---- |  | -- | --
|                                             |  | As of December 31, |    
|                                             |  | 2010(restated)     |     |    | 2009 | 
|Expected income tax rate - expense (benefit) |  |                    | 34  | %  |      |  | 34 | % 
|Valuation allowance                          |  |                    | (77 | )% |      |  | 0  | % 
|Non-controlling interest                     |  |                    | 6   | %  |      |  | 0  | % 
|Permanent differences                        |  |                    | <1  | %  |      |  | <1 | % 
|Tax credits                                  |  |                    | 1   | %  |      |  | 2  | % 
|State income taxes                           |  |                    | 2   | %  |      |  | 4  | % 
|Other                                        |  |                    | (1  | )% |      |  | (3 | )%
|                                             |  |                    |     |    |      |  |    |   
|Actual effective income tax rate             |  |                    | (35 | )% |      |  | 37 | % 
|                                             |  |                    |     |    |      |  |    |   

The Company did not have any unrecognized tax benefits in 2009. Major components related to the permanent
difference include goodwill impairment, investment items and incentive stock options for the year ended December 31, 2009. Permanent differences for the year ended December 31, 2010 are not considered significant. The primary jurisdictions
in which the Company files income tax returns are the U.S. federal government and State of Colorado. The Company is no longer subject to U.S. federal examinations by tax authorities for years before 2007 and Colorado state examinations for years
before 2006.

The Company records income tax related penalties and interest as incurred as general and administrative expenses.

The Company has a federal net operating loss carryforward of approximately $38.9 million that will expire in the years from
2029 to 2030 and state net operating loss carryforward of approximately $27.5 million that will expire in years ranging from 2016 to 2030.



|13. | RELATED PARTY TRANSACTIONS:
|--- | ---------------------------

As discussed above in Note 4 and Note 8, the Company entered into a Development and License Agreement and executed a Securities
Subscription and Investment Agreement with Arch in 2010.



F-23



---

ADA-ES, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



|                                              |  |                          |     |  |      |   |    | 
|--------------------------------------------- |  | ------------------------ | --- |  | ---- | - | -- | 
|                                              |  | Years Ended December 31, |    
|                                              |  | 2010                     |     |  | 2009 |  
|                                              |  | (In thousands)           |    
|Revenues recognized from activities with Arch |  | $                        | 784 |  |      | $ | 30 | 

John Eaves is the President and Chief Operating Officer and a director of Arch and also one of the
members of the Companys Board of Directors. The initial appointment of Mr. Eaves to the Board was made pursuant to a 2003 Subscription and Investment Agreement with Arch whereby the Companys management agreed to make available one
seat on our Board for an Arch designee and to vote all shares and proxies they are entitled to vote in favor of such designee for so long as Arch continues to hold at least 100,000 shares of our common stock. Mr. Eaves abstained from voting on
the above-described transactions. In addition, as required by our related-party transaction policy, the transactions were approved by the Companys audit committee before being recommended to the Board for approval and were then approved by the
disinterested members of the Board.



|14. | BUSINESS SEGMENT INFORMATION (RESTATED):
|--- | ----------------------------------------

The following information relates to the Companys three reportable segments: Emissions control (EC),
CO2capture (CC) and Refined coal
(RC). All assets are located in the U.S. and are not evaluated by management on a segment basis. All significant customers are U.S. companies and the U.S. Government.



|                       |  |                          |        |  |      |   |        |  
|---------------------- |  | ------------------------ | ------ |  | ---- | - | ------ | -
|                       |  | Years Ended December 31, |       
|                       |  | 2010                     |        |  | 2009 |  
|                       |  | (In thousands)           |       
|Revenue:               |  |                          |        |  |      |   |        |  
|EC                     |  | $                        | 9,825  |  |      | $ | 15,947 |  
|CC                     |  |                          | 2,073  |  |      |   | 1,526  |  
|RC                     |  |                          | 10,383 |  |      |   | 2,588  |  
|                       |  |                          |        |  |      |   |        |  
|Total                  |  | $                        | 22,281 |  |      | $ | 20,061 |  
|                       |  |                          |        |  |      |   |        |  
|                       |  |                         
|Segment profit (loss): |  |                          |        |  |      |   |        |  
|EC                     |  | $                        | 2,114  |  |      | $ | 5,326  |  
|CC                     |  |                          | 895    |  |      |   | 349    |  
|RC                     |  |                          | 7,842  |  |      |   | (1,313 | )
|                       |  |                          |        |  |      |   |        |  
|Total                  |  | $                        | 10,851 |  |      | $ | 4,362  |  
|                       |  |                          |        |  |      |   |        |  

A reconciliation of the reported total segment profit to net income for the periods shown above is as
follows:



|                                                           |  |                          |         |   |      |   |         |  
|---------------------------------------------------------- |  | ------------------------ | ------- | - | ---- | - | ------- | -
|                                                           |  | Years Ended December 31, |        
|                                                           |  | 2010(restated)           |         |   | 2009 |  
|Total segment profit                                       |  | $                        | 10,851  |   |      | $ | 4,362   |  
|Non-allocated general and administrative expenses          |  |                          | (30,884 | ) |      |   | (15,625 | )
|Depreciation and amortization                              |  |                          | (917    | ) |      |   | (577    | )
|Interest income and other income/expenses                  |  |                          | 8,566   |   |      |   | 34      |  
|Income tax (expense) benefit                               |  |                          | (7,093  | ) |      |   | 5,546   |  
|Net equity in net income/loss from unconsolidated entities |  |                          | (8,037  | ) |      |   | (3,243  | )
|Net income (loss) attributable to non-controlling interest |  |                          | (3,613  | ) |      |   | 732     |  
|                                                           |  |                          |         |   |      |   |         |  
|Net loss                                                   |  | $                        | (31,127 | ) |      | $ | (8,771  | )
|                                                           |  |                          |         |   |      |   |         |  

Non-allocated general and administrative expenses include costs that benefit the business as a whole and
are not directly related to one of our segments. Such costs include but are not limited to accounting and human resources staff, information systems costs, facility costs, audit fees and corporate governance expenses.



F-24



---

|(15) | RESTATEMENT OF CONSOLIDATED FINANCIAL STATEMENTS:
|---- | -------------------------------------------------

Deferred Tax Assets Valuation Allowance

On its Current Report on Form 8-K dated August 14, 2012, the Company reported managements determination that the Companys consolidated financial statements contained in its Annual Reports
on Form 10-K for the fiscal years ended December 31, 2010 and 2011 and its Quarterly Reports on Form 10-Q for the quarters ended March 31, 2011, June 30, 2011, September 30, 2011, March 31, 2012 and
June 30, 2012 should no longer be relied upon and should be restated.

After extensive discussions with the SECs Division of
Corporation Finance and Office of the Chief Accountant and the Companys outside tax experts, independent registered public accounting firm, Audit Committee and Board of Directors, management determined that a full valuation allowance against
the Companys net deferred tax assets should have been recognized as of December 31, 2010 and for each subsequent quarter thereafter. Management determined that it was necessary to record the valuation allowance against the Companys
deferred tax assets after reconsidering the weight given in the original assessment to the relevant information used to measure the positive and negative evidence regarding the potential for ultimate realization of the deferred tax assets.

Realization of the deferred tax assets is dependent upon the Companys ability to generate future taxable income. In its reassessment,
management concluded that the objective and verifiable negative evidence represented by historical losses outweighed more subjective positive evidence of anticipated future income. As a result, the Company has restated its consolidated financial
statements in this Amendment for the fiscal year ended December 31, 2010.

Financial Statement Effect of the Restatement

The tables below show the effect of the above restatement on the Consolidated Balance Sheet as of December 31, 2010, and
Consolidated Statement of Operations, Consolidated Statement of Changes in Stockholders Equity (Deficit) and Consolidated Statement of Cash Flows for the fiscal year ended December 31, 2010. The restatement reflects non-cash adjustments
and has no effect on previously reported operating income results or cash flows from operations.



F-25



---

Effect on Consolidated Balance Sheet



|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|------------------------------------------------------------------------------------------------- |  | --------------------------------------- | ------- | - | ------------------------------- | - | ------- | ---------------------------- |  | - | ------- | -
|                                                                                                  |  | As Previously ReportedDecember 31, 2010 |         |   | Deferred TaxValuation Allowance |   |         | As RestatedDecember 31, 2010 | 
|                                                                                                  |  |                                         |         |   | (Amounts in thousands)          |   |         |                              | 
|Current Assets                                                                                    |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Cash and cash equivalents                                                                         |  | $                                       | 9,696   |   |                                 | $ |        |                              |  | $ | 9,696   |  
|Receivables, net of allowance for doubtful accounts                                               |  |                                         | 9,066   |   |                                 |   |        |                              |  |   | 9,066   |  
|Investment in securities                                                                          |  |                                         | 505     |   |                                 |   |        |                              |  |   | 505     |  
|Notes receivable                                                                                  |  |                                         | 1,580   |   |                                 |   |        |                              |  |   | 1,580   |  
|Assets held for resale and inventory                                                              |  |                                         | 9       |   |                                 |   |        |                              |  |   | 9       |  
|Prepaid expenses and other                                                                        |  |                                         | 594     |   |                                 |   | (188    | )                            |  |   | 406     |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Total current assets                                                                              |  |                                         | 21,450  |   |                                 |   | (188    | )                            |  |   | 21,262  |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|                                                                                                  |  |                                         |        
|Property and Equipment, at cost                                                                   |  |                                         | 8,041   |   |                                 |   |        |                              |  |   | 8,041   |  
|Less accumulated depreciation and amortization                                                    |  |                                         | (3,235  | ) |                                 |   |        |                              |  |   | (3,235  | )
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Net property and equipment                                                                        |  |                                         | 4,806   |   |                                 |   |        |                              |  |   | 4,806   |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Goodwill                                                                                          |  |                                         | 435     |   |                                 |   |        |                              |  |   | 435     |  
|Intangible assets, net of amortization                                                            |  |                                         | 260     |   |                                 |   |        |                              |  |   | 260     |  
|Investment in unconsolidated entities                                                             |  |                                         | 14,021  |   |                                 |   |        |                              |  |   | 14,021  |  
|Other assets                                                                                      |  |                                         |        |   |                                 |   | 227     |                              |  |   | 227     |  
|Deferred taxes and other assets                                                                   |  |                                         | 15,696  |   |                                 |   | (15,696 | )                            |  |   |        |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Total Assets                                                                                      |  | $                                       | 56,668  |   |                                 | $ | (15,657 | )                            |  | $ | 41,011  |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|                                                                                                  |  |                                         |        
|Total Liabilities                                                                                 |  | $                                       | 43,224  |   |                                 | $ |        |                              |  | $ | 43,224  |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|                                                                                                  |  |                                         |        
|Stockholders Equity (Deficit)                                                                    |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|ADA-ES, Inc. stockholders equity (deficit)                                                       |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Preferred stock: 50,000,000 shares authorized, none outstanding                                   |  |                                         |        |   |                                 |   |        |                              |  |   |        |  
|Common stock: no par value, 50,000,000 shares authorized, 7,538,861 shares issued and outstanding |  |                                         | 39,627  |   |                                 |   |        |                              |  |   | 39,627  |  
|Accumulated deficit                                                                               |  |                                         | (28,218 | ) |                                 |   | (15,657 | )                            |  |   | (43,875 | )
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Total ADA-ES, Inc. stockholders equity (deficit)                                                 |  |                                         | 11,409  |   |                                 |   | (15,657 | )                            |  |   | (4,248  | )
|Non-controlling interest                                                                          |  |                                         | 2,035   |   |                                 |   |        |                              |  |   | 2,035   |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Total Stockholders Equity (Deficit)                                                              |  |                                         | 13,444  |   |                                 |   | (15,657 | )                            |  |   | (2,213  | )
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Total Liabilities and Stockholders Equity (Deficit)                                              |  | $                                       | 56,668  |   |                                 | $ | (15,657 | )                            |  | $ | 41,011  |  
|                                                                                                  |  |                                         |         |   |                                 |   |         |                              |  |   |         |  

Effect on Consolidated Statement of Operations



|                                                                               |  |                              |         |   |                                 |   |         |             |  |   |         |  
|------------------------------------------------------------------------------ |  | ---------------------------- | ------- | - | ------------------------------- | - | ------- | ----------- |  | - | ------- | -
|                                                                               |  | Year Ended December 31, 2010 |        
|                                                                               |  | As Previously Reported       |         |   | Deferred TaxValuation Allowance |   |         | As Restated | 
|                                                                               |  |                              |         |   | (Amounts in thousands)          |   |         |             | 
|Loss from Continuing Operations Before Income Tax and Non-controlling Interest |  | $                            | (20,421 | ) |                                 | $ |        |             |  | $ | (20,421 | )
|Income Tax (Expense) Benefit                                                   |  |                              | 8,564   |   |                                 |   | (15,657 | )           |  |   | (7,093  | )
|                                                                               |  |                              |         |   |                                 |   |         |             |  |   |         |  
|Net Loss Before Non-controlling Interest                                       |  |                              | (11,857 | ) |                                 |   | (15,657 | )           |  |   | (27,514 | )
|Non-controlling Interest                                                       |  |                              | (3,613  | ) |                                 |   |        |             |  |   | (3,613  | )
|                                                                               |  |                              |         |   |                                 |   |         |             |  |   |         |  
|Net Loss Attributable to ADA-ES, Inc.                                          |  | $                            | (15,470 | ) |                                 | $ | (15,657 | )           |  | $ | (31,127 | )
|                                                                               |  |                              |         |   |                                 |   |         |             |  |   |         |  
|                                                                               |  |                              |        
|Net Loss Per Common Share  Basic and Diluted Attributable to ADA-ES, Inc.     |  | $                            | (2.09   | ) |                                 | $ | (2.12   | )           |  | $ | (4.21   | )
|                                                                               |  |                              |         |   |                                 |   |         |             |  |   |         |  



F-26



---

Effect on Consolidated Statement of Changes in Stockholders Equity (Deficit)



|                                            |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|------------------------------------------- |  | --------------------------------------- | ------- | - | ------------------------------- | - | ------- | ---------------------------- |  | - | ------- | -
|                                            |  | As Previously ReportedDecember 31, 2010 |         |   | Deferred TaxValuation Allowance |   |         | As RestatedDecember 31, 2010 | 
|                                            |  |                                         |         |   | (Amounts in thousands)          |   |         |                              | 
|ADA-ES Stockholders' Equity (Deficit)       |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Balance, December 31, 2009                  |  | $                                       | 24,252  |   |                                 | $ |        |                              |  | $ | 24,252  |  
|Stock-based compensation                    |  |                                         | 1,024   |   |                                 |   |        |                              |  |   | 1,024   |  
|Issuance of stock on exercise of options    |  |                                         | 347     |   |                                 |   |        |                              |  |   | 347     |  
|Issuance of stock to 401(k) plan            |  |                                         | 282     |   |                                 |   |        |                              |  |   | 282     |  
|Issuance of stock for cash                  |  |                                         | 1,000   |   |                                 |   |        |                              |  |   | 1,000   |  
|Expense of stock issuance and registration  |  |                                         | (26     | ) |                                 |   |        |                              |  |   | (26     | )
|Net income (loss)                           |  |                                         | (15,470 | ) |                                 |   | (15,657 | )                            |  |   | (31,127 | )
|                                            |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|Balance, December 31, 2010                  |  |                                         | 11,409  |   |                                 |   | (15,657 | )                            |  |   | (4,248  | )
|                                            |  |                                         |        
|Non-controlling Interest, December 31, 2010 |  |                                         | 2,035   |   |                                 |   |        |                              |  |   | 2,035   |  
|                                            |  |                                         |         |   |                                 |   |         |                              |  |   |         |  
|                                            |  |                                         |        
|Total Stockholders' Equity (Deficit)        |  | $                                       | 13,444  |   |                                 | $ | (15,657 | )                            |  | $ | (2,213  | )
|                                            |  |                                         |         |   |                                 |   |         |                              |  |   |         |  

Effect on Consolidated Statement of Cash Flows



|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  
|------------------------------------------------------------------------------- |  | ---------------------------- | ------- | - | ------------------------------- | - | ------- | ----------- |  | - | ------- | -
|                                                                                |  | Year Ended December 31, 2010 |        
|                                                                                |  | As Previously Reported       |         |   | Deferred TaxValuation Allowance |   |         | As Restated | 
|                                                                                |  |                              |         |   | (Amounts in thousands)          |   |         |             | 
|Net loss                                                                        |  | $                            | (15,470 | ) |                                 | $ | (15,657 | )           |  | $ | (31,127 | )
|Adjustments to reconcile net loss to net cash provided by operating activities: |  |                              |         |   |                                 |   |         |             |  |   |         |  
|Depreciation and amortization                                                   |  |                              | 917     |   |                                 |   |        |             |  |   | 917     |  
|Provision for doubtful accounts                                                 |  |                              | (7      | ) |                                 |   |        |             |  |   | (7      | )
|Deferred tax expense (benefit)                                                  |  |                              | (8,563  | ) |                                 |   | 15,656  |             |  |   | 7,093   |  
|Expenses paid with stock, restricted stock and stock options                    |  |                              | 1,306   |   |                                 |   |        |             |  |   | 1,306   |  
|Non-controlling interest in income from subsidiaries                            |  |                              | 3,613   |   |                                 |   |        |             |  |   | 3,613   |  
|Net equity in net loss from unconsolidated entities                             |  |                              | 8,037   |   |                                 |   |        |             |  |   | 8,037   |  
|Non-cash gain from joint venture partner                                        |  |                              | (1,768  | ) |                                 |   |        |             |  |   | (1,768  | )
|Changes in operating assets and liabilities:                                    |  |                              |         |   |                                 |   |         |             |  |   |         |  
|Trade receivables, net                                                          |  |                              | (3,247  | ) |                                 |   |        |             |  |   | (3,247  | )
|Prepaid expenses and other                                                      |  |                              | 288     |   |                                 |   | 1       |             |  |   | 289     |  
|Accounts payable                                                                |  |                              | (1,666  | ) |                                 |   |        |             |  |   | (1,666  | )
|Accrued expenses                                                                |  |                              | 20,589  |   |                                 |   |        |             |  |   | 20,589  |  
|Deferred revenue and other                                                      |  |                              | 7,686   |   |                                 |   |        |             |  |   | 7,686   |  
|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  
|Net cash provided by operating activities                                       |  |                              | 11,715  |   |                                 |   |        |             |  |   | 11,715  |  
|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  
|                                                                                |  |                              |        
|Net cash used in investing activities                                           |  |                              | (3,119  | ) |                                 |   |        |             |  |   | (3,119  | )
|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  
|                                                                                |  |                              |        
|Net cash used in financing activities                                           |  |                              | (356    | ) |                                 |   |        |             |  |   | (356    | )
|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  
|                                                                                |  |                              |        
|Increase in Cash and Cash Equivalents                                           |  |                              | 8,240   |   |                                 |   |        |             |  |   | 8,240   |  
|Cash and Cash Equivalents, beginning of period                                  |  |                              | 1,456   |   |                                 |   |        |             |  |   | 1,456   |  
|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  
|Cash and Cash Equivalents, end of period                                        |  | $                            | 9,696   |   |                                 | $ |        |             |  | $ | 9,696   |  
|                                                                                |  |                              |         |   |                                 |   |         |             |  |   |         |  



F-27