Arq, Inc.

About Arq, Inc.

Arq, Inc. (formerly ADA-ES / Advanced Emissions Solutions; NASDAQ: ARQ) is a Colorado-based environmental technology company that manufactures activated carbon products and related additives for industrial air and water treatment. Arq operates the Red River Plant in Coushatta, Louisiana — the largest activated carbon facility in North America — producing both powdered activated carbon (PAC) and granular activated carbon (GAC) from a proprietary bituminous coal-based feedstock. Product lines include PowerPAC and FastPAC series powdered activated carbons for mercury removal from coal-fired flue gas, CarbPure PAC and FluxSorb RP for broader air emissions control, and M-Prove and RESPond additives. Applications include coal-fired power plant mercury and acid-gas emissions control, municipal and industrial water treatment, soil remediation, asphalt additives, and specialty industrial purification. Keywords: activated carbon, powdered activated carbon, PAC, granular activated carbon, GAC, mercury removal, flue gas treatment, emissions control, air emissions, water treatment, soil remediation, carbon adsorbents, environmental technology, coal-based carbon, reactivation, industrial filtration, PFAS removal, asphalt additive, Arq powder, bituminous carbon.

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