Enviri (formerly Harsco) is a company that provides industrial services and engineered products. It operates in three segments: Harsco Metals & Minerals, Harsco Industrial, and Harsco Rail. The Harsco Metals & Minerals segment provides on-site services of material logistics, product quality improvement, and resource recovery for iron, steel, and metals manufacturing. The Harsco Industrial segment manufactures and supplies custom-engineered and manufactured air-cooled heat exchangers for the natural gas, natural gas processing, and petrochemical industries. The Harsco Rail segment designs and manufactures safety systems for transportation and industrial applications.