Major Pork Processing Plant in US br Is Shut Down Indefinitely The Smithfield pork production plant br closed when it was discovered that more than br 240 employees had been infected by the coronavirus. Located in Sioux Falls, SD, br the infected employees make up br more than half of the cases in the state. The plant accounts for a br staggering four to five percent br of the U.S. pork production. Kenneth Sullivan, CEO, via CNN Kenneth Sullivan, CEO, via CNN SD Governor Kristi Noem br has recommended that the plant br remain closed for at least two weeks. Meat processors in other br states including Pennsylvania and Iowa br have also closed because of infected employees.