📝 Executive Summary
Tyson Foods (TSN) and JBS SA (JBSAY) shares jumped after the U.S. announced it would lift a screwworm-related ban on Mexican cattle imports, reopening a critical supply line for American meatpackers. The move eases input cost pressures that have tightened margins for beef processors over recent months. Investors expect the resumption of cross-border cattle shipments to bolster earnings for major U.S. meatpackers.