United States Steel Corporation

MRC Global is the largest global industrial distributor of pipe, valves and fittings (PVF) and related products and services to the energy industry based on sales, and we hold the leading position in our industry across each of the upstream (exploration, production and extraction of underground oil and natural gas), midstream (gathering and transmission of oil and natural gas, natural gas utilities and the storage and distribution of oil and natural gas) and downstream (petrochemical processing, crude oil refining and general industrials) sectors. We offer more than 150,000 stock keeping units, including an extensive array of PVF, oilfield supply, automation, instrumentation and other general and specialty industry supply products. Through our North American and International segments we serve our more than 12,000 active customers through over 410 service locations throughout North America, Europe, Asia and Australia.

Worthington Industries (NYSE: WOR) is a global company that processes steel for use in the automotive, construction, hardware, aerospace and many other industries. Our family of 10,000 employees in 82 facilities throughout 11 countries has helped us earn the respect of our customers, our communities and our industry. With systems developed to conform to international standards for quality, environmental management and occupational health and safety, we consistently rank at the top of the Jacobson & Associates Survey, which ranks customer satisfaction among major steel suppliers. With sales of approximately $2.5 billion annually, our company is North America's premier value-added steel processor and a leader in manufactured pressure cylinders, such as propane, oxygen and helium tanks, hand torches, refrigerant and industrial cylinders, camping cylinders, compressed natural gas storage cylinders and scuba tanks; framing systems and stairs for mid-rise buildings; steel pallets and racks. Since 1955, Worthington Industries and its employees have lived a customer-centered philosophy, based on the Golden Rule. We often describe our company as "stability in motion," meaning our customers can trust us for old-fashioned quality, reliability and superior service, but also can look to us for dynamic innovation. This attitude toward our customers, our employees and our shareholders has earned us the honor of being named one of the Most Admired Companies in our industry by Fortune magazine. In 2003, we were honored as one of the 30 best performing stocks of the past 30 years by Money magazine. Fortune magazine has listed us as one of the 100 Best Companies to Work for in America four times and Forbes magazine named us one of America's Best Big Companies in 2001 and 2004 and one of America's Best Managed Companies in 2005

Reliance Steel & Aluminum Co. engages in the provision of metals processing services and distribution of metal products. It offers alloy, aluminum, brass, copper, carbon steel, stainless steel, titanium, and specialty steel products. The company was founded by Thomas J. Neilan on February 3, 1939 and is headquartered in Los Angeles, CA.