MSA Increases Second Quarter Dividend to $0.26

The Board of Directors of MSA

today declared a second quarter dividend of 26 cents per share on common stock, payable June 10, 2011 to shareholders of record on May 23, 2011. The Board also declared a dividend of 56-1/4 cents per share on preferred stock, payable June 1, 2011 to shareholders of record on May 23, 2011.