Company description

Arq, Inc., together with its consolidated subsidiaries ("Arq", the "Company," "we," "us", or "our") is an environmental technology company principally engaged in the sale of consumable air, water, and soil treatment solutions, primarily based on activated carbon ("AC"). Our proprietary AC products enable customers to reduce air, water, and soil contaminants, including mercury, per - and polyfluoroalkyl substances ("PFAS") and other pollutants, to meet the challenges of existing and pending air quality and water regulations. We manufacture and sell 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, which we collectively refer to as the advanced purification technologies ("APT") market. Our primary products are comprised of AC, which is produced from a variety of carbonaceous raw materials. Our AC products include both powdered activated carbon ("PAC") and granular activated carbon ("GAC"), among others. Additionally, we own the Five Forks Mine, a lignite coal mine that currently supplies the primary raw material for the manufacturing of the majority of our products. Our predecessor, ADA-ES, Inc. ("ADA"), a Colorado corporation, was incorporated in 1997. Pursuant to an Agreement and Plan of Merger, effective July 1, 2013, the Company (formerly known as Advanced Emissions Solutions, Inc.

Read the full filing description · filed 10 Mar 2026

At a glance

Sector

Basic Materials

Industry

Miscellaneous Chemical Products

CEO

Stacia Hansen