Each shareholder has the option of receiving the dividend in the form of new shares.

The issue price of these new shares has been set at 90% of Mersen’s average Euronext opening price in the 20 trading sessions preceding the day of the AGM. The issue price will be rounded up to the nearest cent.

If a shareholder’s dividend entitlement does not correspond to a whole number of shares, the shareholder can opt to receive:

—    either a number of shares rounded down to the nearest whole number, plus the remainder in cash;

—    or a number of shares rounded up to the nearest whole number, subject to payment of the difference in cash.

Shareholders can select the share dividend option between 25 May 2010 and 21 June 2010. If a shareholder does not select the share dividend option during this period, he/she will receive the whole dividend in cash.

The shares will go ex-dividend on May 25 2010 and settlement will take place on 7 July.