Climespace, part of the SUEZ group and of Gaz de France since 2002, produces and distributes ice water to buildings in the centre of Paris via an air-conditioning network. 410 buildings, corresponding to 4 million square metres, have access to environment-friendly air-conditioning systems. Since its foundation in 1991, Climespace has invested €280 million in industrial development. 2005 turnover: €50 million.

Gaz de France is a major energy player in Europe. The leading European natural gas supplier, the Group has more than 53,000 employees, recorded net sales of €22.4 billion in 2005, and serves 13.8 million customers, including 11.1 million in France. Listed on the Paris Stock Exchange since July 2005, the Group joined the CAC 40 share index and the Dow Jones Stoxx 600 in September 2005.

SUEZ, an international industrial Group, designs sustainable and innovative solutions for the management of public utility services as a partner of public authorities, businesses and individuals. The Group aims to answer essential needs in electricity, natural gas, energy services, water and waste management. SUEZ is listed on the Brussels, Luxembourg, Paris, New York and Zurich stock exchanges and is represented in the major international indices: CAC 40, BEL 20, DJ STOXX 50, DJ EURO STOXX 50, Euronext 100, FTSE Eurotop 100, MSCI Europe and ASPI Eurozone. The Group employs 157,650 people worldwide and achieved revenues of 41.5 billion in 2005, 89% of which were generated in Europe and in North America.

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This communication does not constitute an offer to purchase or exchange or the solicitation of an offer to sell or exchange any securities of Suez or an offer to sell or exchange or the solicitation of an offer to buy or exchange any securities of Gaz de France, nor shall there be any sale or exchange of securities in any jurisdiction (including the United States, Germany, Italy and Japan) in which such offer, solicitation or sale or exchange would be unlawful prior to the registration or qualification under the laws of such jurisdiction. The distribution of this communication may, in some countries, be restricted by law or regulation. Accordingly, persons who come into possession of this document should inform themselves of and observe these restrictions. To the fullest extent permitted by applicable law, Gaz de France and Suez disclaim any responsibility or liability for the violation of such restrictions by any person.The Gaz de France ordinary shares to be issued in connection with the proposed business combination to holders of Suez ordinary shares (including Suez ordinary shares represented by Suez American Depositary Shares) may not be offered or sold in the United States except pursuant to an effective registration statement under the United States Securities Act of 1933, as amended, or pursuant to a valid exemption from registration. In connection with the proposed business combination, the required information document will be filed with the Autorité des marchés financiers (“AMF”) and, to the extent Gaz de France is required or otherwise decides to register the Gaz de France ordinary shares to be issued in connection with the business combination in the United States, Gaz de France may file with the United States Securities and Exchange Commission (“SEC”), a registration statement on Form F-4, which will include a prospectus. Investors are strongly advised to read the information document filed with the AMF, the registration statement and the prospectus, if and when available, and any other relevant documents filed with the SEC and/or the AMF, as well as any amendments and supplements to those documents, because they will contain important information. If and when filed, investors may obtain free copies of the registration statement, the prospectus as well as other relevant documents filed with the SEC, at the SEC's web site at www.sec.gov and will receive information at an appropriate time on how to obtain these transaction-related documents for free from Gaz de France or its duly designated agent. Investors and holders of Suez securities may obtain free copies of documents filed with the AMF at the AMF's website at www.amf-france.org or directly from Gaz de France on its web site at: www.gazdefrance.com or directly from Suez on its website at: www.suez.com, as the case may be.

Forward-Looking Statements