Harsco Corporation is a diversified, multinational provider of industrial services and engineered products serving global industries. The Company operates in four segments: Harsco Metals & Minerals, Harsco Infrastructure, Harsco Rail and Harsco Industrial. The Company's principal lines of business include outsourced, on-site services to steel mills and other metals producers; resource recovery technologies for the re-use of industrial waste stream by-products; industrial abrasives and roofing granules; engineered scaffolding, concrete forming and shoring, and other access-related services, rentals and sales; railway track maintenance services and equipment; industrial grating products; air-cooled heat exchangers, and heat transfer products. During the year ended December 31, 2012, the Harsco Metals & Minerals Segment generated 46% of the Company�s total revenue.