Stull, Stull & Brody
Announces Investigation Relating to the
401(k) Plan of Sanofi-Aventis SA (NYSE:SNY)

New York, New York, November 5, 2007— Stull, Stull & Brody today announced that it has commenced an investigation relating to the 401(k) defined contribution retirement plan of Sanofi-Aventis SA (“Sanofi-Aventis” or the “Company”). Among other things, Stull, Stull & Brody is investigating whether fiduciaries of the Sanofi-Aventis 401(k) plan may have violated the Employee Retirement Income Security Act of 1974 (“ERISA”) by failing to disclose improper acts and practices and by offering Sanofi-Aventis ADRs as an investment option under the Sanofi-Aventis401(k) plan when it was not prudent to do so.

If you currently hold Sanofi-Aventis ADRs in an individual account under the Sanofi-Aventis 401(k) plan, you may, if you wish, consult with a representative of Stull, Stull & Brody at no cost or obligation. The contact information for Stull, Stull & Brody is as follows:

Email: ssbny@aol.com
Fax: (212) 490-2022
Toll Free Number: 1-800-337-4983
(Edwin J. Mills, Esq. or Tzivia Brody, Esq.)

Mail: Stull, Stull & Brody
6 East 45th Street
New York, NY 10017

Stull, Stull & Brody has extensive experience in protecting the rights of 401(k) plan participants and beneficiaries and shareholders of public companies. Stull, Stull & Brody is presently representing classes of 401(k) plan participants in many class action cases throughout the country. Stull, Stull & Brody maintains offices in New York and Los Angeles.

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