Meat manufacturer Tyson Foods Inc. (TSN) has been aggressively expanding its product portfolio in recent months through strategic acquisitions. Continuing its transition from a broiler company into a diversified producer of prepared foods, under CEO Tom Hayes, Tyson Monday signed an agreement to acquire Keystone Foods for about $2.16 billion. The new addition is expected … Continue reading Tyson Foods gets buff with $2.2-bn Keystone buyout