Tyson is investing more than $180 million in the plant expansion in Caseyville, making it capable of producing 16 million pounds of product a year.
The expansion will also create 250 jobs at the facility.
"Tyson's decision to expand in Illinois speaks to our strengths in manufacturing and processing, our world-class infrastructure, and our abundant and highly talented workforce," Pritzker said.
Gov. Pritzker said over half-a-million Illinoisans, and counting, work in manufacturing.