 PITTSBURGH, May 28, 2021 PRNewswire -- MSA Safety Incorporated NYSE: MSA, the global leader in the development, manufacture and supply of safety products that protect people and facility infrastructures, today announced that Nish Vartanian, Chairman, President and Chief Executive Officer, and Kenneth Krause, Senior Vice President, Chief Financial Officer and Treasurer, will present at the following virtual investor conferences: William Blair 41st Annual Growth Stock Conference on Wednesday, June 2, 2021 from 12:20 p.m. 12:50 p.m. 