The companies admitted no wrongdoing.

The facility in Liberal sustained damage in the loading dock area.

Retailers allege Cargill, JBS S.A., Tyson Foods and National Beef conspired to fix beef prices.

JBS filed a subpoena requesting data from Nebraska Beef to be used in a beef price-fixing case.

The companies face allegations of wage suppression in the class action case.

Tyson Foods, Cargill, JBS S.A., Swift Beef and National Beef Packing faced antitrust allegations.

While 46 workers were exposed to the gas, only one employee was hospitalized.

The Tama, Iowa, plant will resume current operations and production levels.

An April 27 hearing will address the dynamics of rising consumer prices and decreasing cattle prices.

Rob Cannell has worked at the meat producer since 2013.