Advanced Emissions Solutions, Inc. is a holding company for a family of companies that provide emissions solutions to customers in the coal-fired power generation, industrial boiler and cement industries. The Company provides environmental and emissions control equipment and specialty chemicals to the coal-burning electric power generation industry. It operates through two segments: Refined Coal (RC) and Emissions Control (EC). The RC segment is engaged in equity method investments, as well as royalty payment streams and reducing emissions of both nitrogen oxide and mercury from coals. Its equity method investments related to the RC segment include Clean Coal Solutions, LLC, which owns, leases or sells facilities used in the production of RC, and Clean Coal Solutions Services, LLC, which operates and maintains RC facilities. The EC Segment includes systems and equipment-activated carbon injection, dry sorbent injection system and other systems; consulting services, and chemicals.