Advanced Emissions Solutions to Host First Quarter 2021 Conference Call on May 11th

Advanced Emissions Solutions, Inc. (NASDAQ: ADES) (the “Company” or “ADES”) today announced the Company expects to release its first quarter 2021 financial results and file its Quarterly Report on Form 10-Q for the period ended March 31, 2021 after market close on Monday, May 10, 2021. A conference call to discuss the Company's financial performance is scheduled to begin at 9:00 a.m. Eastern Time on Tuesday, May 11, 2021.

The conference call webcast information will be available via the Investor Resources section of ADES's website at www.advancedemissionssolutions.com. Interested parties may also participate in the call by registering at http://www.directeventreg.com/registration/event/1599975. A supplemental investor presentation will be available on the Company's Investor Resources section of the website prior to the start of the conference call. As part of the conference call, ADES will conduct a question and answer session. Investors are invited to email their questions in advance to [e-mail].

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 brings together ADA Carbon Solutions, LLC, a leading provider of powder activated carbon (“PAC”) and ADA-ES, Inc., the providers of ADA® M-Prove™ Technology. We provide products and services to control mercury and other contaminants at coal-fired power generators and other industrial companies. Our broad suite of complementary products control contaminants and help our customers meet their compliance objectives consistently and reliably.

CarbPure Technologies LLC, (“CarbPure”), formed in 2015 provides high-quality PAC and granular activated carbon ideally suited for treatment of potable water and wastewater. Our affiliate company, ADA Carbon Solutions, LLC manufactures the products for CarbPure.

Tinuum Group, LLC (“Tinuum Group”) is a 42.5% owned joint venture by ADA that provides patented Refined Coal (“RC”) technologies to enhance combustion of and reduce emissions of NOx and mercury from coal-fired power plants.

Source: Advanced Emissions Solutions, Inc.

Investor Contact:

Alpha IR GroupRyan Coleman or Chris [e-mail]