Filed by: Gaz de France

pursuant to Rule 165 and Rule 425(a)

under the Securities Act of 1933, as amended

Subject Company: SUEZ

Exchange Act File Number: 001-15232

Date: May 27, 2008

On May 24, 2008, Gaz de France issued the following press release.

Important Information

This communication does not constitute an offer to purchase, sell, or exchange or the solicitation of an offer to sell, purchase, or exchange any securities of Suez, Suez Environment (or any company holding the Suez Environment Shares) or Gaz de France, nor shall there be any offer, solicitation, purchase, sale or exchange of securities in any jurisdiction (including the United States, Germany, Italy and Japan) in which such offer, solicitation, purchase, 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 which would 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 transactions, 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

This communication contains forward-looking information and statements about Gaz de France, Suez, Suez Environment and their combined businesses after completion of the proposed transactions. Forward-looking statements are statements that are not historical facts. These statements include financial projections, synergies, cost-savings and estimates and their underlying assumptions, statements regarding plans, objectives, savings, expectations and benefits from the transaction and expectations with respect to future operations, products and services, and statements regarding future performance. Forward-looking statements are generally identified by the words “expect,” “anticipates,” “believes,” “intends,” “estimates” and similar expressions. Although the managements of Gaz de France and Suez believe that the expectations reflected in such forward-looking statements are reasonable, investors and holders of Gaz de France and Suez ordinary shares are cautioned that forward-looking information and statements are not guarantees of future performances and are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of Gaz de France and Suez, that could cause actual results, developments, synergies, savings and benefits from the proposed transactions to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include those discussed or identified in the public filings with the Autorité des marchés financiers (“AMF”) made by Gaz de France and Suez, including those listed under “Facteurs de Risques” in the Document de Référence filed by Gaz de France with the AMF on May 15, 2008 (under no: R.08-0056) and any update thereto and in the Document de Référence filed by Suez on March 18, 2008 and any update thereto, as well as documents filed by Suez with the SEC, including those listed under “Risk Factors” in the Annual Report on Form 20-F for 2006 that Suez filed with the SEC on June 29, 2007. Except as required by applicable law, neither Gaz de France nor Suez undertakes any obligation to update any forward-looking information or statements.

* * * *

Gaz de France enters into exclusive negotiations with EDF

for the sale of its interest in SEGEBEL

Paris, May 24, 2008 – At the end of a competitive process, Gaz de France has entered into exclusive negotiations with EDF for the sale of its interest in Segebel.

Segebel, a company jointly owned by Gaz de France and Centrica on a 50/50 basis, owns a 51% equity interest in SPE.

SPE is the second largest electricity utility in Belgium with generating capacity of 1,650 MW, representing approximately 10% of the country’s overall electricity production capacity. SPE provides electricity and gas to some 1.1 million customers.

In 2007, SPE reported net sales of €2.2 billion for the sale of 10 billion kWh and 13 billion kWh of electricity and gas respectively.

The sale of its equity interest in Segebel will allow Gaz de France to fulfil one of the commitments it made to the European Commission within the framework of plans to merge Gaz de France and SUEZ.

Group profile:

The Gaz de France Group is a major energy player in Europe. As the leading natural gas distributor in Europe, Gaz de France employs nearly 50,000 employees and earned €27 billion in sales in 2007. The Group holds a portfolio of some 14 million clients, approximately 11 million of which are in France. Gaz de France is listed on the Paris Stock Exchange and forms part of the CAC 40 and Dow Jones Stoxx 600 indices.

Press contact:	Investor relations contact:
Jérôme Chambin - Tel : +331 47 54 24 35	Brigitte Roeser-Herlin – Tél : +331 47 54 77 25
E-mail: jerome.chambin@gazdefrance.com	E-mail: GDF-IR-TEAM@gazdefrance.com

The objectives given above are based upon data, hypotheses and estimates which are deemed reasonable by Gaz de France. This data, hypotheses and estimates may evolve or be modified because of uncertainties due primarily to the economic, financial, competitive, regulatory and climatic environment. Furthermore, the occurrence of certain risks described in chapter 4 of the reference document filed by the French Financial Markets Authority under the number R.07-046, dated first April 2007 (hereinafter referred to as the “Reference Document”) could have an impact on the Group’s activities and its capacity to achieve its objectives. Moreover, the attainment of objectives depends upon the success of the strategy presented in paragraph 6.1.2 of the Reference Document. Therefore, Gaz de France does not commit to or guarantee the attainment of objectives and does not undertake to publish or issue possible corrections or updates of such elements, with the exception of what is required by relevant law and regulations.

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