Harsco Corp. engages in the provision of industrial services and engineered products. It operates through the following business segments: Harsco Environmental, Harsco Clean Earth, and Harsco Rail. The Harsco Environmental provides environmental services and material processing to the global steel and metals industries. The Harsco Clean Earth segment provides processing and beneficial reuse solutions for hazardous wastes, contaminated materials, and dredged volumes. The Harsco Rail segment provides equipment, after-market parts and services for the maintenance, repair and construction of railway track. The company was founded in 1853 and is headquartered in Camp Hill, PA.