Filed by: Enel Chile S.A. (Commission File No. 001-37723)

pursuant to Rule 425 promulgated under the Securities Act of 1933, as amended 
Subject Company: Enel Generación Chile S.A. (Commission File No. 001-13240)
Form F-4 Registration No. 333-221156

No Offer or Solicitation

This communication does not constitute an offer to buy or sell or the solicitation of an offer to buy or sell any securities. This communication relates to a proposed tender offer by Enel Chile S.A. (“Enel Chile”) for all of the outstanding shares of common stock, no par value, of Enel Generación Chile S.A. (“Enel Generación”), including the form of American Depositary Shares, that are not currently owned by Enel Chile. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended. 

Important Information For Investors and Security Holders

The tender offer described herein has not yet commenced. If the tender offer is commenced, tender offer materials will be made available and filed with the U.S. Securities and Exchange Commission (the “SEC”) in accordance with applicable U.S. federal securities laws and SEC rules. In connection with the proposed tender offer, Enel Chile has filed with the SEC a registration statement on Form F-4 (Registration No. 333-221156) containing a preliminary prospectus of Enel Chile regarding the proposed tender offer. The information contained in the preliminary prospectus is not complete and may be changed and the registration statement has not been declared effective by the SEC. Each of Enel Chile and Enel Generación may file with the SEC other documents in connection with the proposed tender offer.

This communication is not a substitute for the definitive prospectus that Enel Chile will file with the SEC, which will contain important information, including detailed risk factors.  The definitive prospectus (when available) and related tender offer materials (when available) will be sent to shareholders and holders of American Depositary Receipts (ADRs) of Enel Generación. INVESTORS AND SECURITY HOLDERS OF Enel Generación ARE URGED TO READ THE DEFINITIVE PROSPECTUS AND OTHER tender offer materials THAT ARE FILED OR MAY BE FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION, including the full details of the tender offer.

Investors and security holders will be able to obtain free copies of the tender offer materials and other documents filed with the SEC by Enel Chile and Enel Generación on the SEC’s website at www.sec.gov. Copies of the tender offer materials and the other documents filed with the SEC by Enel Chile will also be available free of charge on the Enel Chile Investor Relations website at www.enelchile.cl or by contacting Enel Chile S.A. at Santa Rosa 76, Piso 15, Santiago, Chile, Attention: Investor Relations or by phone at +56 2 2353 4400 or by E-mail at ir.enelchile@enel.com. Copies of the tender offer materials and the other documents filed with the SEC by Enel Generación will be available free of charge on the Enel Generación Investor Relations website at www.enelgeneracion.cl or by contacting Enel Generación S.A. at Santa Rosa 76, Piso 15, Santiago, Chile, Attention: Investor Relations or by phone at +56 2 2630 9000 or by E-mail at ir.enelgeneracionchile@enel.com.

This presentation contains statements that could constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements appear in a number of places in this presentation and include statements regarding the intent, belief or current expectations of Enel Chile S.A. (“Enel Chile”) and its management with respect to, among other things: (1) Enel Chile's capital investment program; (2) trends affecting Enel Chile's financial condition or results of operations; (3) Enel Chile’s dividend policy; (4) the future impact of competition and regulation; (5) political and economic conditions in Chile and in the countries in which Enel Chile or its related companies may operate in the future; (6) any statements preceded by, followed by or that include the words “believes,” “expects,” “predicts,” “anticipates,” “intends,” “estimates,” “should,” “may” or similar expressions; and (7) any statement that is not a historical fact. Such forward-looking statements are not guarantees of future performance and involve risks and uncertainties. Actual results may differ materially from those in the forward-looking statements as a result of various factors. These factors include, but are not limited to, the following: (1) Enel Chile may fail to realize the business growth opportunities, revenue benefits, cost savings and other benefits anticipated from the proposed reorganization described herein (the “Reorganization”); (2) Enel Chile may incur unanticipated costs associated with the proposed Reorganization; (3) potential integration of Enel Chile and Enel Green Power Latin America may be difficult and expensive; (4) Enel Chile following the consummation of the proposed Reorganization may not be able to retain key employees or efficiently manage the larger and broader organization, which could negatively affect its operations and financial condition; (5) the proposed Reorganization may be delayed or may not be consummated, negatively affecting the market price of Enel Chile’s stock; and (6) the other risk factors discussed in Enel Chile’s Annual Report on Form 20-F for the year ended December 31, 2016, under the heading “Item 3.D. Risk Factors.” There can be no assurance that the proposed Reorganization or any other transaction described in this presentation will in fact be consummated in the matter described or at all. These forward-looking statements are made only as of the date hereof. Enel Chile undertakes no obligation to update these forward-looking statements, except as required by law.

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No Offer or Solicitation
This communication does not constitute an offer to buy or sell or the solicitation of an offer to buy or sell any securities. This communication relates to a proposed tender offer by Enel Chile S.A. (“Enel Chile”) for all of the outstanding shares of common stock, no par value, of Enel Generación Chile S.A. (“Enel Generación”), including the form of American Depositary Shares, that are not currently owned by Enel Chile. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended.

Important Information For Investors and Security Holders
The tender offer described herein has not yet commenced. If the tender offer is commenced, tender offer materials will be made available and filed with the U.S. Securities and Exchange Commission (the “SEC”) in accordance with applicable U.S. federal securities laws and SEC rules. In connection with the proposed tender offer, Enel Chile has filed with the SEC a registration statement on Form F-4 (Registration No. 333-221156) containing a preliminary prospectus of Enel Chile regarding the proposed tender offer. The information contained in the preliminary prospectus is not complete and may be changed and the registration statement has not been declared effective by the SEC. Each of Enel Chile and Enel Generación may file with the SEC other documents in connection with the proposed tender offer.

This communication is not a substitute for the definitive prospectus that Enel Chile will file with the SEC, which will contain important information, including detailed risk factors. The definitive prospectus (when available) and related tender offer materials (when available) will be sent to shareholders and holders of American Depositary Receipts (ADRs) of Enel Generación. INVESTORS AND SECURITY HOLDERS OF ENEL GENERACIÓN ARE URGED TO READ THE DEFINITIVE PROSPECTUS AND OTHER TENDER OFFER MATERIALS THAT ARE FILED OR MAY BE FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION, INCLUDING THE FULL DETAILS OF THE TENDER OFFER.

Investors and security holders will be able to obtain free copies of the tender offer materials and other documents filed with the SEC by Enel Chile and Enel Generación on the SEC’s website at www.sec.gov. Copies of the tender offer materials and the other documents filed with the SEC by Enel Chile will also be available free of charge on the Enel Chile Investor Relations website at www.enelchile.cl or by contacting Enel Chile S.A. at Santa Rosa 76, Piso 15, Santiago, Chile, Attention: Investor Relations or by phone at +56 2 2353 4400 or by E-mail at ir.enelchile@enel.com. Copies of the tender offer materials and the other documents filed with the SEC by Enel Generación will be available free of charge on the Enel Generación Investor Relations website at www.enelgeneracion.cl or by contacting Enel Generación S.A. at Santa Rosa 76, Piso 15, Santiago, Chile, Attention: Investor Relations or by phone at +56 2 2630 9000 or by E-mail at ir.enelgeneracionchile@enel.com.

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