CONVOCATION TO THE COMBINED GENERAL MEETING - Vicat

CONVOCATIONMeeting attendance is subordinated to the account registration of securities in your name orthat of the intermediary registered on the latter’s behalf by the third business day prior to theMeeting at zero hour, Paris time, in the registered share accounts held by the Company, or in thebearer share accounts held by the authorised intermediary, the latter being under obligation ofdelivering an attendance certificate.If you do not attend the meeting personally, you are entitled to be represented by your spouseor to appoint another shareholder as your representative.The shareholder or the latter’s representative must carry an identification document.If you are unable to attend the Meeting, please return the power of attorney or vote bycorrespondence using the enclosed reply envelope.In the capacity of individual shareholder, French tax resident, you are entitled to opt for thedividends specified in Article 117 quarter of the General Tax Code and received as of January 1,2010 for subjection to an 18 % levy in discharge (to which social contributions are added, i.e. anoverall tax rate of 30.1 %). If no option is expressed within the deadlines, the net dividends youwill receive further to deduction of social contributions at the rate of 12.1 % will be submitted toincome tax in compliance with the progressive scale. Accordingly, if you hold registered VicatCompany shares which you administer yourself and you wish to select this possibility of beingsubjected to levy in discharge for all or part of your collectable dividends, would you pleaseexpress your irrevocable decision on the date of the shareholders’ MGM to be held on April 28,2010, at the latest. If you hold Vicat Company shares which are handled by an intermediary orare bearer shares and you wish to benefit from this possibility for all or part of your collectabledividends, would you please contact the financial institution that manages your account as soonas possible so that the latter can inform you of the exercise terms of the option of subjection tolevy in discharge.Yours faithfully.Paris, April 12, 2010The Board of Directors4 VICAT - CONVOCATION 2010