John P. O'Brien

Oglebay Norton Co. LLC engages in mining, processing, transporting and marketing industrial minerals and aggregates. It provides aggregates and industrial minerals for applications in the building materials, environmental, energy and industrial markets. The company operates in three segments: Great Lakes Minerals, Global Stone and Performance Minerals. The Great Lakes Minerals segment mines and distributes limestone from facilities located in northern Michigan. The Global Stone segment supplies lime, crushed and ground limestone, construction aggregates and chemical limestone in the Great Lakes region. It's products are used as a filler in building materials, waste water treatment and soil stabilization and as an aggregate for construction of highways, shopping centers, hospitals and schools. Performance Minerals segment mines and processes industrial sands. The company was founded in 1854 and is headquartered in Cleveland, OH.

International Total Services, Inc. provides aviation contract support and commercial security staffing services. Its aviation services include pre-board screening, skycap, baggage handling & aircraft appearance services and wheelchair & electric cart operations. The company's security services extends beyond aviation security and includes the provision of commercial security staffing services to government and business clients, hospitals, arenas & museums. International Total Services is headquartered in Independence, OH.

American Italian Pasta Co. produces and markets branded and private label dry pasta in North America with brands. The company was founded by Richard C. Thompson in 1986 and is headquartered in Oak Brook, IL.

PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY.

Globe Specialty Metals, Inc. produces and distributes silicon metal, silicon-based specialty alloys, and silicon-fume ingredients. The company was founded by Alan Kestenbaum in December 2004 and is headquartered in Waterford, OH.

North Coast Minerals LLC operates as a platform company to invest in industrial minerals, mining, natural resources and related businesses. The firm invests in the debt, mezzanine and equity of industrial minerals, mining, natural resources and related businesses. The company is headquartered in Columbus, OH.