EXHIBIT 99.1 FOR IMMEDIATE RELEASE FROM: MSA Safety Incorporated Ticker: MSA (NYSE) Media Relations Contact: Mark Deasy (412) 559-8154 Investor Relations Contact: Chris Hepler (412) 225-3717 MSA Safety Announces First Quarter 2024 Results and Upcoming Investor Events Healthy sales growth and robust margin expansion; Maintaining mid-single digit full year sales growth outlook PITTSBURGH, April 29, 2024 - Global safety equipment and solutions provider MSA Safety Incorporated (NYSE: MSA) today reported financi ...