A.M. Castle & Co., together with its subsidiaries, engages in the distribution of specialty metals and plastics worldwide. The company operates in two segments, Metals and Plastics. The Metals segment distributes engineered specialty grades and alloys of metals, as well as provides specialized processing services. It offers alloy, aluminum, nickel, stainless steel, carbon, and titanium in various forms, such as plate, sheet, extrusions, round bar, hexagon bar, square and flat bar, tubing, and coil. This segment also performs various specialized fabrications for its customers through pre-qualified subcontractors that thermally process, turn, polish, and straighten alloy and carbon bars. The Plastics segment distributes various plastics in forms that include plate, rod, tube, clear sheet, tape, gaskets, and fittings. A.M. Castle & Co. serves Fortune 500 companies, as well as medium and smaller sized firms in the retail, automotive, marine, office furniture and fixtures, safety products, life sciences applications, general manufacturing, producer durable equipment, oil and gas, aerospace, heavy industrial equipment, industrial goods, and construction equipment industries. It has operations in the United States, Canada, Mexico, France, the United Kingdom, China, and Singapore. The company was founded in 1890 and is headquartered in Oak Brook, Illinois.