Advanced Emissions Solutions Provides Refined Coal Update

HIGHLANDS RANCH, CO--(Marketwired - May 19, 2016) - Advanced Emissions Solutions, Inc. (OTC PINK: ADES) (the "Company" or "ADES") today announced that Clean Coal Solutions, LLC ("CCS"), a joint venture among the Company's wholly-owned subsidiary ADA-ES, Inc., an affiliate of NexGen Resources Corporation, and an affiliate of The Goldman Sachs Group, Inc., has leased an additional Refined Coal ("RC") facility to an RC investor. The newly leased RC facility is located at a coal-fired electric generating plant that has historically burned approximately 5.8 million tons of coal per year¹.

Although there is a new lease, it is expected that a current lease will terminate in July because the tons of coal burned at the plant where that RC facility is located has been significantly reduced due to natural gas power generation. This plant historically burned 1.7 million tons of coal per year¹. As a result of these transactions, CCS will have the same number of invested RC facilities; however, the coal burned at invested facilities will increase by roughly four million tons a year based on historical averages.

L. Heath Sampson, President and CEO of ADES said, "The value of our refined coal platform is clear and we are pleased with this recent transaction. Additionally, we plan to move the facility that will come back to CCS in July to a larger plant and will begin operation once CCS secures a tax-equity investor. We continue to build our pipeline of potential RC investors and hope to announce additional RC facility leases and sales in the upcoming quarters."

¹ Per US Energy Information Administration -- 12 month period ended February, 2016

About Advanced Emissions Solutions, Inc.

Advanced Emissions Solutions, Inc. serves as the holding entity for a family of companies that provide emissions solutions to customers in the power generation and other industries.

ADA-ES, Inc. ("ADA") is a wholly-owned subsidiary of Advanced Emissions Solutions, Inc. ("ADES") that provides emissions control solutions for coal-fired power generation and industrial boiler industries. With more than 25 years of experience developing advanced mercury control solutions, ADA delivers proprietary environmental technologies, equipment and specialty chemicals that enable coal-fueled boilers to meet emissions regulations. These solutions enhance existing air pollution control equipment, maximizing capacity and improving operating efficiencies. Our track record includes securing more than 30 US patents for emissions control technology and systems and selling the most activated carbon injection systems for power plant mercury control in North America. For more information on ADA, its products and services, visit www.adaes.com or the ADA Blog (http://blog.adaes.com/).
 
Clean Coal Solutions, LLC ("CCS") is a 42.5% owned joint venture by ADA that provides ADA's patented Refined Coal ("RC") CyClean™ technology to enhance combustion of and reduce emissions of NOx and mercury from coals in cyclone boilers and ADA's patent pending M-45™ and M-45-PC™ technologies for Circulating Fluidized boilers and Pulverized Coal boilers respectively.

This press release contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, which provides a "safe harbor" for such statements in certain circumstances. The forward-looking statements include statements or expectations regarding termination of a lease for an RC facility, moving and installing an RC facility to a larger plant, the amount of coal burned at certain RC facilities, our ability to build a pipeline of and secure additional RC investors and lease or sell the remaining RC facilities and related matters. These statements are based on current expectations, estimates, projections, beliefs and assumptions of our management. Such statements involve significant risks and uncertainties. Actual events or results could differ materially from those discussed in the forward-looking statements as a result of various factors, including but not limited to changes in laws, regulations and IRS interpretations or guidance; economic conditions and market demand; failure of the RC facilities to produce coal that qualifies for tax credits; decreases in the production of RC; availability, cost of and demand for alternative tax credit vehicles and other technologies; seasonality and other factors discussed in greater detail in our filings with the Securities and Exchange Commission ("SEC"). You are cautioned not to place undue reliance on such statements and to consult our SEC filings for additional risks and uncertainties that may apply to our business and the ownership of our securities. Our forward-looking statements are presented as of the date made, and we disclaim any duty to update such statements unless required by law to do so.