Solvay SA

AGM Information • Apr 6, 2012

This document has been translated for information purposes only. Whilst every effort has been made to ensure that the English version is a faithful and accurate translation of the French text, only the latter is a legally valid document.

NOTICE OF ATTENDANCE

I, the undersigned

currently owner of the above-mentioned number of registered shares in SOLVAY SA without par value, on the date of registration, I advise the mentioned company of my intention to attend the ordinary general meeting that will be held on Tuesday 8th May 2012 at 10:30 AM, 44 Rue du Prince Albert, 1050 Brussels, with the number of all shares registered at the date of registration, on 24th April 2012 at midnight.

SOLVAY SA must be in possession of this notice of attendance, duly completed and signed, by 2nd May 2012 at the latest. This document may be sent by post to Solvay SA, Shareholders Meeting, 310 Rue de Ransbeek, 1120 Brussels, or by fax at +32 (0)2.264.37.67, or electronically to the following email address ag.solvay@solvay.com.

Signed at _____________________, on the ________________2012.

Signature(s)