MISTRAS Group, Inc. to Report Third Quarter Results on April 8, 2010 and Announces Retirement of CFO and Automatic Extension of Lock-Up PRINCETON JUNCTION, N.J., March 31, 2010 (GLOBE NEWSWIRE) -- MISTRAS Group, Inc. (NYSE:MG) will have a conference call on Thursday, April 8, 2010 at 9:00 am Eastern Time to discuss its results for the third quarter of fiscal year 2010, which ended February 28, 2010. A press release with the third quarter results will be issued after the close of the market on Wednesday, April 7, 2010. The call will be broadcast over the Web and can be accessed on Mistras' Website, www.mistrasgroup.com. Individuals in the U.S. wishing to participate in the conference call by phone may call 800-299-7089 and use confirmation code 99014886 when prompted.  (The International number is 617-801-9714.)  Those who wish to listen to the call later can access an archived copy of the conference call at the Mistras Website.CFO Paul "Pete" Peterik to Retire The Company announced that its Chief Financial Officer, Paul "Pete" Peterik, has decided to retire. Mr. Peterik has agreed to remain with the Company in his current role until his successor is named. The company has initiated a search for his replacement, and once a new CFO is in place, Mr. Peterik will remain available to the Company for a period of time as a non-employee consultant on an as-needed basis. Mistras Chairman and Chief Executive Officer, Dr. Sotirios Vahaviolos, stated that, "We are extremely grateful for all Pete has done for us during his tenure at Mistras, particularly the instrumental role he played helping launch the Company's successful initial public offering last October. We wish Pete all the best in his retirement."Automatic Extension of Lock-Up Period Mistras also announced that the lock-up agreements entered into with its underwriters in conjunction with its initial public offering will automatically be extended 18 days beyond the Company's April 7, 2010 earnings release. The lock-up period was originally due to expire on April 5, 2010, but Mistras' underwriting agreement and lock-up agreements with directors, officers and certain shareholders of Mistras provide for an automatic extension due to the timing of Mistras' earnings press release. Therefore, the first sales of shares restricted by the underwriters' lock-up may now take place on Monday, April 26, 2010.About MISTRAS Group: MISTRAS offers one of the broadest services and technology-enabled asset protection solutions portfolios in the industry used to evaluate the structural integrity of energy, industrial and public infrastructure. Mission critical services and solutions are delivered globally and provide customers the ability to extend the useful life of their assets, improve productivity and profitability, comply with government safety and environmental regulations and enhance risk management operational decisions. MISTRAS uniquely combines its industry leading products and technologies -- 24/7 on-line monitoring of critical assets; mechanical integrity (MI) and non-destructive testing (NDT) services; and its proprietary world class data warehousing and analysis software -- to provide comprehensive and competitive products, systems and services solutions from a single source provider. For more information, visit the company's website at www.mistrasgroup.com or contact its worldwide headquarters at 609-716-4000. The Mistras Group, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=6966CONTACT: MISTRAS Group, Inc. 609-716-4000

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