Gypsum is mined and used for many purpose including making concrete, drywall and several other building materials. In 1965, USG sold the land above the old mines to the Ohio Department of ...
The two short sides (usually 4 feet) are not wrapped. Sheetrock is drywall. USG (United States Gypsum), the manufacturer of ...
The state of Ohio is suing the United States Gypsum Company (USG) for nearly $17 million over sinkholes near State Route 2.
Yost says the United States Gypsum Company "failed to maintain underground mines that caused dangerous sinkholes." ...