settling a dispute over alleged defective gypsum wallboard that has dragged on for 10 years. The company's shares rose. A number of US homeowners, developers and others have filed lawsuits against ...

Headquartered in Burlington, Ontario, Gyptech designs, engineers and fabricates new and replacement production lines for gypsum wallboard and asphalt-shingle facilities. With offices in North ...

and paper chemicals to form recycled paperboards that are sold to gypsum wallboard manufacturers. The company was founded in 1963 and is headquartered in Dallas, TX. U.S. News compares companies ...

Plautz said the companies have sold each other gypsum in the past ... According to Plautz, the plant, which produces wallboard, is a ”small scale operation.” He added that the market for ...