 PRINCETON JUNCTION, N.J., Oct. 27, 2021 GLOBE NEWSWIRE -- MISTRAS Group, Inc. NYSE:MG has scheduled a conference call for Wednesday, November 3, 2021 at 9:00 am Eastern Time to discuss its results for the third quarter of 2021. A press release with the third quarter results will be issued after the close of market on Tuesday, November 2, 2021. 