Enel Chile S A : Agreements approved by Board of Directors related to Related-Party Transactions – Enel Chile Ordinary Shareholder’s Meeting 2024

RESOLUTIONS ADOPTED BY THE BOARD OF DIRECTORS OF

ENEL CHILE S.A. RELATED TO ACTS OR CONTRACTS GOVERNED BY

TITLE XVI OF LAW NO. 18,046.

1. At a regular meeting held on April 26, 2023, the Board of Directors analyzed and approved a transaction with related parties regarding a New Financing for Enel Chile, consisting of the structuring and obtaining of a new financing on the following terms and conditions: (i) Amount: US$100 million, plus expenses and taxes, if applicable, to be obtained through a revolving committed credit facility; (ii) Counterparty: Enel Finance International; (iii) Currency: U.S. dollars;
2. 1. Maturity: up to 12 months; (v) Cost "all-in spread" (prime rate + spread): Term-SOFR +125 bps;
   1. Guarantees: None; (vii) Legislation: Italian. If required, promissory notes governed by Chilean law will be issued; (viii) The aforementioned credit facility will be documented in contracts whose terms and conditions will be based on the intercompany documents already negotiated by the Company. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
3. At a regular meeting held on May 24, 2023, the Board of Directors analyzed and approved an operation with related parties related to the Extension of the Current Program with the European Investment Bank and Guarantee of Enel SpA, consisting of structuring and obtaining financing with the European Investment Bank, with the following benchmark conditions: (i) total amount: up to US$200 million; (ii) counterparty: European Investment Bank; (iii) currency: United States dollars;
4. 1. maturity: up to 15 years; (v) interest rate: indicative reference SOFR + 210 bps. and (vi) guarantee: corporate guarantees of Enel SpA for 20% and SACE for the remaining 80%; and in the execution of the respective guarantee service agreement with Enel SpA, on contractual terms substantially similar to the documentation executed in connection with the guarantee granted by the previous EIB financing. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Monica Girardi, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
5. At a regular meeting held on June 27, 2023, the Board of Directors analyzed and approved an operation with related parties regarding a New Short-Term Financing for Enel Chile, consisting of the structuring and obtaining of a new financing on the following terms and conditions: (i) Total

amount: US$320 million; (ii) Counterparty: Enel Finance International (EFI); (iii) Currency: dollars;

1. (iv) Maturity: Up to 3 months; (v) All-in spread cost (spread + upfront): Term-SOFR + 0.75%; (vi)

   Guarantees: None; and (vii) Legislation: Italian. If required, promissory notes governed by Chilean law will be issued. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.

2. At a special meeting held on July 10, 2023, the Board of Directors agreed to terminate the confidential nature of a resolution dated November 25, 2022 whereby approval was given to an operation between related parties consisting of a centralized cash flow contract with subsidiary Arcadia Generación Solar S.A., on the same general terms and conditions contemplated for all direct and indirect subsidiaries of the Enel Group in Chile, which will remain in force only as long as said company is part of the Enel Group. The terms and conditions and particularly the rates of the centralized cash flow will be those prevailing in the market at that date, and the rates may be reviewed from time to time in accordance with the procedure previously approved by the Board of Directors of Enel Chile S.A. at its meeting held on January 22, 2020 and at its meeting held on February 28, 2022. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
3. In a special meeting held on July 10, 2023, the Board of Directors agreed to terminate the confidential nature of a resolution dated November 25, 2022 whereby approval was given for an operation between related parties consisting of the granting of a corporate guarantee, pursuant to which Enel Chile S.A. will guarantee adequate compliance with the indemnity obligations that its subsidiary Enel Green Power Chile S.A. assumes towards Enel Generación Chile S.A. derived from the change in the nature of certain energy supply contracts (physical contracts to financial contracts). The total guaranteed amount is 6 months of supply for each of the contracts, i.e., as of today, it is equivalent to a total of US$29,000,000. Beyond this limit, Enel Chile S.A. will have no liability of any kind, whether in principal, interest, costs, expenses, fees or other amounts owed. The term of the guarantee is 13 months. Upon expiration of such term, the guarantee will be renewed according to the terms and conditions approved by the Board of Directors of Enel Chile S.A., to reflect the corresponding market conditions (in January of each year, starting in January 2024). Finally, the remuneration is 0.49% per annum. The interest indicated above will be calculated on the basis of the actual number of days used of the guarantee, according to the date on which the guarantee was granted by Enel Chile S.A. and until the maturity date or at the time the total release of the instrument is granted or total reimbursement by EGP Chile to Enel Chile S.A. for any amount paid by Enel Chile S.A. under the guarantee in question, whichever occurs

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later. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.

1. At a regular meeting held on October 31, 2023, the Board of Directors analyzed and approved the operation with related parties consisting of the modification of the contract for the provision of GDS services for the management of information technology and telecommunications systems and projects between Enel Chile S.A. as supplier and Enel Américas S.A. as recipient, specifically the second clause regarding the price, increasing up to 40% of the value of the Contract, the reduction of the services that the parties may agree upon. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
2. On December 19, 2023, the Board of Directors analyzed and approved the operation with related parties consisting of having Enel Chile S.A. join a Consortium together with other companies of the Group, which will be established and governed by Italian law. The Consortium will be an associative entity, without legal personality, whose function will be to coordinate, optimize and standardize the activities included in the accounting operations processes, managed according to the new operating model to platform (DAP - Dynamic Accounting Platform), in order to pursue common standardization, digitalization, compliance and economic efficiency objectives of the participating companies. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
3. At a regular meeting held on December 19, 2023, the Board of Directors analyzed and approved the transaction with related parties consisting of the restitution by Enel Chile S.A. to Enel Green Power Chile S.A., of approximately US$1.3 million, corresponding to an account receivable whose holder was Enel Green Power Chile S.A. against Arcadia Generación Solar S.A., generated within the framework of the divestment of Arcadia Generación Solar S.A. to Sonnedix Chile Arcadia Generación SpA and Sonnedix Chile Arcadia SpA. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
4. At a regular meeting held on December 19, 2023, the Board of Directors analyzed and approved the related party transaction consisting of the execution of a sublease on the MUT Building with

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Enel X Chile SpA, with the following characteristics: (i) Parties to the Contract: Sub-lessor: Enel

Chile S.A., Sublessee: Enel X Chile SpA; (ii) Monthly Rent: from January 2024 to September 2027:

1. 582.80 UF; from October 2027 to April 2030: 596.05 UF, considering a staff of 95 people, which

   will be reviewed quarterly; (iii) Monthly Variable Amount: 348.11 UF; (iv) Total assigned parking

   spaces: 1; (v) Term: From January 01, 2024 to April 30, 2030. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.

2. At a regular meeting held on February 28, 2024, the Board of Directors analyzed and approved an operation with related parties regarding a new financing guaranteed by Enel SpA consisting of the granting of a corporate guarantee by Enel SpA related to the obligations of Enel Chile S.A. derived from the financing of up to USMM$286 that would be granted by Citibank and for the reimbursement of funds to Enel Green Power USA for the expenses incurred by the latter company for the benefit of Enel Chile for due diligence activities. For the granting of the respective guarantee, Enel Chile S.A. and Enel SpA will sign a guarantee service contract and Enel Chile S.A. will remunerate Enel SpA. for the granting of the guarantee, while the respective refund or reimbursement agreement will be signed with Enel Green Power Chile USA. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
3. At a regular meeting held on February 28, 2024, the Board of Directors analyzed and approved an operation with related parties consisting of the granting of new financing by Enel Finance International (EFI), on the following terms and conditions: (i) creditor: EFI; (ii) amount: up to US$50 million; (iii) currency: US dollars; (iv) maturity: up to 36 months; (v) indicative rate: SOFR + 100 bps; (vi) "up-front fee": 50 bps; (vii) "Commitment fee" (% over margin): 30%; (viii) guarantee: none. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
4. On February 28, 2024, the Board of Directors analyzed and approved an operation with related parties consisting of the execution of a contract for the supply of Microsoft software licenses and services, between Enel Chile S.A., as recipient, and Enel Global Services SRL, as supplier, for a total maximum amount of 1,551,519.12 Euros and for a 5-year term. Resolution adopted with the favorable vote of the Chairman of the Board of Directors, Mr. Herman Chadwick Piñera, and

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directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.

1. On February 28, 2024, the Board of Directors analyzed and approved an operation with related parties consisting of the execution of contracts for the provision of "staff" services between Enel Chile S.A., as supplier, and the following subsidiaries or related companies: Enel Generación Chile S.A., Enel Green Power Chile S.A., Empresa Eléctrica Pehuenche S.A., and Enel Américas S.A., as beneficiaries, for a total amount equivalent to 519,345 UF and for a 1-year term with the possibility of automatic renewal for the same period. The services consist of: (i) General Services,
2. 1. Security, (iii) Asset Management, (iv) Human Resources, (v) Internal Audit, (vi) Administration,
   1. Tax Advisory, (viii) Finance, (ix) Insurance, (x) Communications, (xi) Legal and Corporate Affairs, (xii) Investor Relations, (xiii) Sustainability, (xiv) Financial Control, (xv) Institutional Relations, (xvi) Regulation and (xvii) Procurement. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
3. At a regular meeting held on March 27, 2024, the Board of Directors analyzed and approved an operation with related parties consisting of the contracting of new financing by Enel Chile S.A. for up to US$700 million with Enel Finance International, N.V. (EFI), to be obtained through a revolving committed credit facility, in U.S. dollars, with a term to maturity of up to 2 years, with an all-in spread cost (spread + up-front), of Term-SOFR + 145 bps, unsecured and subject to Italian law, with the possibility of issuing promissory notes under Chilean law if so required. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.
4. In a regular meeting held on March 27, 2024, the Board of Directors analyzed and approved an operation with related parties consisting of the modification and update of contracts for the provision of "staff" services between Enel Chile S.A., as supplier, and the following subsidiaries or related companies: Enel Distribución Chile S.A., Enel X Chile SpA, Enel Mobility Chile SpA, and Enel X Way Chile SpA, as beneficiaries, for a total amount equivalent to 278,688 UF, according to the indicated breakdown and for a 1-year term with the possibility of automatic renewal. The services consist of: (i) General Services, (ii) Security, (iii) Wealth Management, (iv) Human Resources, (v) Internal Audit, (vi) Administration, (vii) Tax Advisory, (viii) Finance, (ix) Insurance, (x) Communications, (xi) Legal and Corporate Affairs, (xii) Investor Relations, (xiii) Sustainability, (xiv) Financial Control, (xv) Institutional Relations, (xvi) Regulation and (xvii) Procurement. Resolution

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adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.

16. In a regular meeting held on March 27, 2024, the Board of Directors analyzed and approved an operation with related parties consisting of the execution of a contract for the provision of staff services between Enel Chile S.A., as supplier, and Enel Generación Piura S.A., as recipient, for a maximum annual amount equivalent to US$672,365, plus value added tax, which will come into effect once the required corporate authorizations have been secured from both parties, and will be in force for one year, renewable automatically and successively, with the parties being able to terminate it when necessary. The services consist of: (i) Internal Audit, (ii) Communications, (iii) Tax Advisory, (iv) Sustainability, (v) Money and Treasury Desk, (vi) Administration, (vii) People and Organization, (viii) Procurement and (ix) Services & Security. Resolution adopted with the favorable vote of the Chairman of the Board, Mr. Herman Chadwick Piñera, and directors Fernán Gazmuri Plaza, Salvatore Bernabei, Monica Girardi, Isabella Alessio, Pablo Cabrera Gaete and Gonzalo Palacios Vásquez.

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