Arq, Inc.

General Arq, Inc. is an environmental technology company that sells consumable air, water, and soil treatment solutions, primarily using activated carbon (AC). The company's AC products help customers reduce contaminants like mercury, per- and polyfluoroalkyl substances (PFAS), and other pollutants to comply with air quality and water regulations. General Arq manufactures and sells AC and other chemicals used to capture and remove impurities, contaminants, and pollutants for the coal-fired power generation, industrial, water treatment, and water and soil remediation markets, collectively known as the advanced purification technologies (APT) market. Its primary products are AC, made from various carbonaceous raw materials, including powdered activated carbon (PAC) and granular activated carbon (GAC). General Arq also owns the Five Forks Mine, a lignite coal mine that supplies the main raw material for most of its products. The company, formerly Advanced Emissions Solutions, Inc. (ADES), a Delaware company incorporated in 2011, succeeded ADA-ES, Inc. (ADA), a Colorado corporation incorporated in 1997, as the publicly held corporation on July 1, 2013. In 2018, General Arq acquired ADA Carbon Solutions, LLC to expand its mercury control products and enter other APT markets. In February 2023, the company acquired 100% of the equity interests, assets, and liabilities of the subsidiaries of Arq Limited to gain access to additional U.S.-based bituminous coal feedstock and a manufacturing facility in Corbin, Kentucky.