Global Brass & Copper Holdings, Inc. engages in the conversion, fabrication, processing, and distribution of specialized non-ferrous products. It operates through the following segments: Olin Brass; Chase Brass and A.J. Oster. The Olin Brass segment fabricates, manufactures and converts copper and brass sheet, strip, foil, tube and fabricated components. The Chase Brass segment produce brass rod, in round, hexagonal, and other shapes, ranging from 1/4 inch to 4 1/2 inches in diameter. The A.J. Oster segment focuses in the process and distribute copper and copper-alloy sheet, strip, and foil. The company was founded on October 10, 2007 and is headquartered in Schaumburg, IL.