The United States Gypsum Company:

• Is a subsidiary of USG Corporation.
• Was incorporated in 1901, formed by a consolidation of 30 firms that produced gypsum rock and plaster, to become the first gypsum company with a national scope.
• Is North America's largest manufacturer and marketer of gypsum-based products.
• Had net sales of $1.9 billion for 2005.
• Employs 4,831 people.
• Created the world's first commercially viable wallboard — SHEETROCK^® Brand Gypsum Panels in 1917.
• Developed SHEETROCK^® brand lightweight all purpose joint compound with dust control, he industry's first joint compound that creates "heavy dust" to minimize mess.
• Is the U.S. market leader in wallboard, joint compounds, building plasters, cement board and industrial gypsum products.
• Serves the building products industry with such well-known products as Sheetrock^® gypsum panels, Sheetrock^® ready-mixed joint compounds and Durock^® cement board.
• Operates 17 gypsum board and 14 joint treatment plants in the United States.
• Supplies its plants with gypsum rock from 14 mines and quarries in the United States, Canada and Mexico.
• Operates five paper mills that produce high-grade wallboard paper from 100 percent recycled paper.
• Operates a gypsum fiber board plant in Gypsum, Ohio, whose products are marketed under the company's newest brand names: Fiberock^® panels and Securock^® roof board.
• Owns and operates a fleet of oceangoing cargo ships based in Bermuda.
• Introduced the first steel and wallboard shaft wall system for enclosing elevator and utility shafts in high-rise construction, which helped make buildings such as the Sears Towers and the Kuala Lumpur City Center in Malaysia economically and structurally feasible.
• Manufactures and sells specialized gypsum products used in a wide range of applications, including soil nutrients and conditioners, tooling and mold making, and dietary calcium additives in breads, cereals and pharmaceuticals.