USG Corp.

Koch Industries, Inc. began as Wood River Oil and Refining Co. in 1940. The company is based in Wichita, Kansas and is one of the largest private companies in America. Its major industries include refining, chemicals & biofuels, process & pollution control equipment and technologies, minerals, fertilizers, polymers & fibers, commodity trading & service, forest & consumer products, and ranching.Koch companies have supported education and social progress. These philanthropic efforts include support for educational institutions, foundations and programs that study and promote market-based solutions to societal challenge. Koch also works to protect, conserve and enhance natural resources; Koch companies around the world have earned awards for safety, environmental excellence, community stewardship, innovation and customer service since January 2009.

James Hardie Industries Plc engages in the manufacture of fiber cement siding and backer board. It operates through the following segments: North America Fiber Cement, International Fiber Cement, Other Businesses and Research and Development. The North America Fiber Cement segment manufactures fiber cement interior linings, exterior siding products, and related accessories in the United States. The International Fiber Cement segment comprises of all fiber cement products manufactured in Australia, New Zealand, and the Philippines, and sold in Australia, New Zealand, Asia, the Middle East, and various Pacific Islands. The Other Businesses segment focuses in the certain non-fiber cement manufacturing and sales activities in North America, including fiberglass windows. The Research and Development segment represents the cost incurred by the research and development centers. The company was founded in 1888 and is headquartered in Dublin, Ireland.

Armstrong World Industries, Inc. engages in the design, manufacture, and trade of commercial and residential ceiling, wall, and suspension system solutions. It operates through the following segments: Mineral Fiber, Architectural Specialties and Unallocated Corporate. Mineral Fiber segment produces suspended mineral fiber and soft fiber ceiling systems for use in commercial and residential settings. Architectural Specialties segment roduces and sources ceilings and walls for use in commercial settings. Unallocated Corporate segment includes assets, liabilities, income and expenses that have not been allocated to other business segments. The company was founded by Thomas M. Armstrong in 1860 and is headquartered in Lancaster, PA.