Solvay shares are traded:

• on NYSE-Euronext Brussels : SOLB.BE - Bloomberg: SOLB.BB - Reuters: SOLBt.BR
• in the United States in the form of AMERICAN DEPOSITARY RECEIPTS (ADRs) – each representing one share “sponsored” by Morgan Guaranty Trust New York (no. 834437-10-5) and traded over-the-counter.
  For further information on the ADRs, a hotline is also available at 1-800-428-4237 (from the United States and Canada) and at 1-781-575-4328 (from other countries).

As from February 15, 2007 and for a period of one year with tacit renewal, Solvay has mandated Rothschild & Cie Banque with the implementation of a liquidity contract to improve the liquidity of its shares on Euronext Brussels.