David Swain

TXI LLC is a subsidiary of Texas Industries, Inc., which provides heavy construction materials in the U.S. through its three business segments: Cement, Aggregates and Consumer Products. The Cement segment produces gray portland cement and specialty cements. The Aggregates segment produces natural aggregates, including sand, gravel and crushed limestone, and specialty lightweight aggregates. The Consumer Products segment produces primarily ready-mix concrete and, to a lesser extent, packaged products. The company is headquartered in Dallas, TX.

Northwestern University is a private institution founded in 1851 to serve the Northwest Territory, an area that now includes the states of Ohio, Indiana, Illinois, Michigan, Wisconsin and parts of Minnesota. Northwestern has three campuses

National Investor Relations Institute operates as an association of corporate officers and investor relations consultants responsible for communication among corporate management, shareholders, securities analysts and other financial community constituents. The company was founded by DeWitt C. Morrill in 1969 and is headquartered in Alexandria, VA.

Gabriel Performance Products LLC manufactures and supplies specialty chemicals. Its products include phenoxy resin, epoxy curing agents, and specialty lubricants. The company was founded in 2001 and is headquartered in Akron, OH.