Dave Powers

USG Corp. engages in the manufacture and sale of building materials and solutions. It offers products for use in new residential, new nonresidential, and residential and nonresidential repair and remodel construction, as well as products used in certain industrial processes. It operates through the following segments: U.S. Wallboard and Surfaces; U.S. Performance Materials; U.S. Ceilings; Canada; and Other. The company was founded in 1902 and is headquartered in Chicago, IL.

L&W Supply Corp. distributes gypsum wallboard and building materials. Its products include drywall and wallboard, steel framing, ceiling, acoustical, joint treatment, insulation, exteriors, fasteners, tools and accessories. The firm also offers delivery services, credit, submittals, and ordering services. The company was founded in 1971 and is headquartered in Chicago, IL.

American Gypsum Co., Inc. manufactures, sells and distributes gypsum drywall products. Its poroducts offers wide selection of regular/non fire rated, fire rated, mold and moisture resistant, factory built housing, shaft liner, and glass mat. The company was founded on September 25, 1997 and is headquartered in Dallas, TX.

SSI Oil & Gas Proppants Holdings LLC engages in the operation of oil and gas proppants properties. It owns frac sand mines and related processing facilities. The company is headquartered in Dallas, TX.