Engie Energia Chile S A : Press Release EECL 4Q24 English

About this update from Engie Energia Chile S.a.

January 30, 2025 ENGIE ENERGÍA CHILE REPORTED EBITDA OF US$92 MILLION AND NET INCOME OF US$27 MILLION IN THE FOURTH QUARTER OF 2024. EBITDA REACHED US$515.8 MILLION IN 2024, REFLECTING ADEQUATE AVAILABILITY OF POWER GENERATION UNITS AND LOWER MARGINAL COSTS ACCOMPANIED BY REDUCED GENERATION COSTS DUE TO LOWER FUEL PRICES, WHICH RESULTED IN IMPROVED OPERATING RESULTS. THIS ALSO CONTRIBUTED TO A RECOVERY IN LEVERAGE AND LIQUIDITY RATIOS THAT WILL IN TURN ALLOW THE COMPANY TO CONTINUE WITH ITS AMBITIOUS INVESTMENT PLANS AND DECARBONIZATION PROCESS. Operating revenues amounted to US$1,835.5 million in 2024, a 16% decrease compared to 2023 due to lower average monomic prices for both regulated and non-regulated customers explained by the variations in tariff indexers. EBITDA amounted to US$515.8 million in 2024, a US$112.9 million increase compared to the previous year. The main reasons behind the EBITDA increase include the increase in physical energy sales, lower average supply costs, adequate availability of generation plants and lower generation costs explained by the decrease in global fuel prices. Net Results amounted to US$228.3 million in 2024, a complete turnaround from 2023's results due to improved operating results and the absence of asset impairments like those reported in 2023 due to the company's decarbonization initiatives. Financial Highlights (in US$ millions) 4Q23 4Q24 Var % 12M23 12M24 Var% Total operating revenues 476.8 455.4 -4% 2,192.7 1,836.5 -16% Operating income 45.5 55.5 22% 221.1 370.1 67% EBITDA 90.9 91.8 1% 402.9 515.8 28% EBITDA margin 19.1% 20.1% 6% 18.4% 28.1% (9.8pp) Total non-operating results (626.3) (23.9) -96% (720.2) (58.9) -92% Net income attributed to controlling shareholders (480.6) 27.3 n.a (411.1) 228.3 n.a Earnings per share (US$/share) (0.46) 0.03 0.025 0.217 Total energy sales (GWh) 3,050 3,042 0% 12,072 12,466 3% Total net generation (GWh) 1,000 1,125 12% 5,493 5,043 -8% Energy purchases on the spot market (GWh) 1,299 865 -33% 3,626 3,875 7% Energy purchases - back up (GWh) 966 1,019 6% 3,289 3,664 11% ENGIE ENERGÍA CHILE S.A. ("ECL") is engaged in the generation, transmission and supply of electricity and the transportation of natural gas in Chile. ECL is the fourth largest electricity generation company in Chile and one of the largest electricity generation companies in the northern segment of the SEN national grid (formerly known as SING). As of December 31, 2024, ECL accounted for 7% of the SEN's installed capacity. ECL primarily supplies electricity to large mining and industrial customers, and it also supplies electricity to distribution companies throughout Chile. ECL is currently 59.99% indirectly owned by the French company, ENGIE LATAM. The remaining 40.01% of ECL's shares are publicly traded on the Santiago stock exchange. For more information, please refer to www.engie-energia.cl . Contents HIGHLIGHTS 3 SUBSEQUENT EVENTS 3 FOURTH QUARTER OF 2024 3 THIRD QUARTER OF 2024 3 SECOND QUARTER OF 2024 4 FIRST QUARTER OF 2024 5 INDUSTRY OVERVIEW 5 Marginal Costs 5 Fuel prices 6 Generation 6 Management's Discussion and Analysis of Financial Results 8 Fourth quarter of 2024 compared to fourth quarter of 2023 and third quarter of 2024 8 Operating Revenues 8 Operating Costs 9 Electricity Margin 10 Operating Results 11 Financial Results 11 12M2024 compared to 12M2023 12 Operating Revenues 12 Operating Costs 13 Operating results 14 Financial Results 15 Liquidity and Capital Resources 16 Cash Flow from Operating Activities 16 Cash Flow Used in Investing Activities 17 Cash Flow from Financing Activities 17 Contractual Obligations 18 Dividend Policy 21 Risk management policy 22 OWNERSHIP STRUCTURE AS OF DECEMBER 31, 2024 22 Number of shareholders: 1,730 22 APPENDIX 1 23 PHYSICAL DATA AND SUMMARIZED QUARTERLY FINANCIAL STATEMENTS 23 Physical Sales 23 Quarterly Income Statement 24 Quarterly Balance Sheet 25 Main Balance Sheet Variations 25 APPENDIX 2 28 Financial information 28 Financial Ratios 28 CONFERENCE CALL 4Q24 30 2 HIGHLIGHTS SUBSEQUENT EVENTS Parque Eólico Lomas de Tal Tal energization: This wind project, located in the Antofagasta region, has been completely energized and represents ENGIE's largest renewable energy generation asset in Chile. Through its 57 aerogenerators, each with 6.0MW capacity, it is able to inject 342MW of renewable energy into the national electricity grid ("SEN"). FOURTH QUARTER OF 2024 Monetization of PEC-3 documents: On October 24, 2024, pursuant to the agreement reached with IDB Invest described in the Essential Fact dated October 8, 2024 and in the following paragraph, ENGIE Energía Chile and its subsidiary Eólica Monte Redondo sold to IDB Invest documents of payment ("DDPs") issued by the Chilean Treasury for a total amount of US$356 million including interests of US$8.5 million. These DDPs arose as a result of the difference between the billing that would have resulted from applying the energy and power tariffs defined in the supply contracts signed between the company and the distribution concessionaires and the effective billing of the tariffs resulting from the application of the PEC-3 Law. On October 7, 2024, the Company signed an agreement with Inter-American Investment Corporation ("IDB Invest") pursuant to which, subject to certain conditions, the Company will sell to IDB Invest documents of payment ("DDPs") resulting from the application of the price stabilization mechanism pursuant to Law 21,472, as amended by Law 21,677, that "Creates a Tariff Stabilization Fund and establishes a New Transitory Electricity Price Stabilization Mechanism for Customers Subject to Price Regulation" (Law 21,472, as amended, the "PEC- 3 Law"), Exempt Resolution number 86 of 2023, as amended by Exempt Resolution number 334 of 2023 and by Exempt Resolution number 379 of 2024, all from the National Energy Commission. The PEC-3 Law created a tariff stabilization fund and established a new transitional mechanism for stabilizing electricity prices for customers subject to tariff regulation for up to US$5,500 million, which will be in force until the balances originated by the application of the law are extinguished, which should not occur after December 31, 2035. BESS Tamaya energization : The BESS Tamaya energy storage project is already 100% energized and as of October 1, 2024 has injected more than 4,000 MWh of green energy into the National Electric System (SEN). This site has an installed capacity of 68 MW/418MWh, which allows for energy storage for more than 5 hours a day. Its 152 battery containers are charged with the energy generated by the Tamaya Solar Plant (114 MWac). THIRD QUARTER OF 2024 Swiss Bond: On September 26, 2024, as reported by an Essential Fact dated August 30, 2024, the Company placed bonds in the Swiss market for a total amount of CHF 190,000,000 (one hundred and ninety million Swiss francs), in accordance with the rules of Article 51(2) of the Swiss Financial Services Act dated June 15, 2018 "FinSA". The bonds contemplate a term of 5 years, with a single principal payment at maturity on September 26, 2029, and annual interest payments at an annual interest rate of 2.1275%. The proceeds from the placement will be used, in whole or in part, to finance or refinance eligible projects as defined in the Green Financing Framework of Engie S.A. To mitigate exposure to foreign exchange rates and interest rates, the company entered into a cross- currency swap contract whereby the principal amount of the bond was set at US$ 225,118,483.41 at a fixed annual interest rate in dollars of 5.4272%. Monetization of PEC-2 documents: On August 9, 2024, the Company monetized documents of payment issued by the Chilean Treasury pursuant to the second price stabilization law for regulated customers (MPC law or "PEC- 2"), under the mechanisms agreed with the Inter-American Development Bank, for a value of US$9.3 million. On September 30, the Company made a final sale of short-term payment documents to the Treasury for a value of US$55,000, thus ending the sale of payment documents under the PEC-2 program that reached a total of US$290.7 million between August 2023 and September 2024. 3 SECOND QUARTER OF 2024 Annual Ordinary Shareholders' Meeting : On Tuesday, April 30, 2024, the Company's shareholders agreed on the following: Dividend Policy : No final dividends will be distributed on account of 2023's net results given the reported losses in the period. Board of Directors : The appointment of the following persons as members of the Board of Directors: Primary Board Member Deputy Board Member Type Frédéric Halkin Guilherme Ferrari Mireille van Staeyen Matías Niebuhr Pascal Renaud Bernard Esselinckx Felisa Ros César Cornejo María Carolina Schmidt Zaldívar Juan Enrique Allard Serrano Independent Cristián Eyzaguirre Johnston Ricardo Fisher Abeliuk Independent Joanna Davidovich Gleiser Daniel Vercelli Baladrón Independent Auditors : The appointment of EY Servicios Profesionales de Auditoría y Asesorías SpA as the Company's external audit firm. The new Board of Directors, in its April 30 session, agreed to appoint (a) Pascal Renaud as Chairman of the Board, and (b) the independent board members, María Carolina Schmidt Zaldívar, Cristián Eyzaguirre Johnston and Joanna Davidovich Gleiser, as members of the Directors Committee according to Article 50- bis of Law 18,046. Financing: On April 17 th , EECL completed a bond issuance in the international markets for a total amount of US$ 500 million. This issuance was carried out in accordance with the rules 144-A and Regulation S (Reg S) of the United States Securities Act of 1933. The bonds have a 10-year maturity and a 6.375% p.a. coupon interest rate. Interest payments will be made semi-annually, starting on October 17 th , 2024 and the principal will be amortized in one single final payment on April 17 th , 2034. The obligations arising from these bonds are not secured by any guarantees. In compliance with applicable regulations, the bonds will not be registered with the Securities and Exchange Commission of the United States or with the CMF (Chilean Market Commission), and therefore, they will not be subject to public offering in either the United States or the Republic of Chile. This is ENGIE Chile´s first green bond issuance in the international markets, to finance renewable energy and storage projects. Early redemption of 144-A/RegS bond: On April 8, 2024, EECL launched an Any-and-All tender offer for the 4.5%, US$350 million senior notes due January 2025. The offer was accepted by 61.28% of the bondholders; therefore, with proceeds of the new issue the company prepaid US$214,471,000 plus accrued interest, leaving a balance of US$135,529,000 to be repaid at maturity on January 29, 2025. Monetization of PEC-2 documents: In May 2024, the Company monetized US$38.8 million in DDPs issued by the Treasury of the Republic under the second price stabilization law for regulated consumers (MPC law or "PEC-2"), following the mechanisms agreed upon with the Inter-American Development Bank. New energy storage project: In April, Engie Energía Chile announced its fifth storage project called "BESS Tocopilla". This project will have an installed capacity of 116 MW/660 MWh. The initiative will be located where former coal and fuel oil units operated, giving new life to the site, while contributing to the flexibility and security of supply of both the National Electric System (SEN) and ENGIE's portfolio. 4 Environmental approval: In June 2024, Engie Energía Chile received environmental approval for its first transmission project in the community of Rengo in the O'Higgins region, south of Santiago. The project consists of a sectioning substation called Totihue, which includes the construction of a new sectioning substation and sectioning of the 2x220 kV Candelaria - Puente Negro transmission line. It also considers the installation of a new 66 kV double-circuit transmission line connecting the CGE-owned Rosario substation and the new Totihue sectioning substation. FIRST QUARTER OF 2024 BESS Coya commercial operation : The BESS Coya storage project received authorization from the National Electric Coordinator to begin operations during the first quarter. This battery storage system has a 139 MW/638 MWh installed capacity and allows for the storage of energy generated by the Coya Solar Plant, located in María Elena, Antofagasta region. It is currently the largest energy storage battery park in Latin America. BESS Coya consists of 232 containers, evenly distributed across the 58 inverters of the solar plant. It can supply energy for up to 5 hours, equivalent to an average annual delivery of 200 GWh. Additionally, it plays a crucial role in the environment by providing green energy to approximately 100,000 households, avoiding the emission of 65,642 tons of CO2, annually. Monetization of PEC-2 documents: In January 2024, the Company monetized payment documents issued by the Treasury of the Republic under the second law of price stabilization for regulated customers (MPC law or "PEC-2"), following mechanisms agreed upon with the Inter-American Development Bank, for a value of US$ 9.6 million. INDUSTRY OVERVIEW The SING and SIC power grids operated independently until November 24, 2017, when the interconnection of both grids was perfected through EECL's 50%-owned TEN project, giving birth to the SEN ( "Sistema Eléctrico Nacional" ). Currently, the company's generation assets are predominantly located in the northern segment of the SEN, in the area that used to be covered by the so-called SING Grid ( "Sistema Interconectado del Norte Grande" ), which serves a major portion of the country's mining industry. Given local conditions, the northern segment of the SEN is predominantly a thermoelectric system, with generation based on coal and LNG, with growing penetration of renewable sources, including wind, solar, geothermal, and storage systems, which allow to cope with the renewable energy generation intermittence, decoupling and curtailment. In 2018, EECL began its geographical diversification with the acquisition of renewable generation assets in other regions of the country and with the start of supply under PPAs awarded with distribution companies in the center-south region. Since then, and more significantly following its decarbonization announcements, the company has been embarked in an ambitious investment program including investing in new renewable generation, storage and transmission assets. In recent years, the accelerated installation of renewable energy projects in the country has exceeded the capacity of the transmission infrastructure, making it necessary to expand it to prevent renewable energy losses. Marginal Costs 2023 Real (Monthly Average per Node) 2024 Real (Monthly Average per Node) Mes Crucero 22 Polpaico 220 Charrúa 22 Pto. Montt 2 Temuco 220 Mes Crucero PAN DE AZU Polpaico Charrua P. Montt Ene 96 94 91 197 89 Jan 42 40 41 37 79 Feb 114 114 110 215 107 Feb 54 51 53 50 108 Mar 106 133 132 207 128 Mar 51 49 49 47 60 Abr 109 133 132 160 130 Abr 55 53 55 61 73 May 106 123 123 138 118 May 79 81 93 94 95 Jun 93 104 102 90 88 Jun 54 52 54 48 36 Jul 60 59 56 48 47 Jul 46 45 49 43 42 Ago 54 52 48 36 36 Aug 44 43 47 44 66 Sep 53 50 46 32 33 Sep 48 41 42 38 49 Oct 44 41 33 35 27 Oct 50 45 40 29 50 Nov 41 33 25 20 20 Nov 42 36 35 28 34 Dec 47 41 34 49 28 Dec 38 35 37 35 57 YTD 77 81 78 102 71 YTD 50 48 49 46 63 Source: Coordinador Eléctrico Nacional 5 In the first quarter of 2024, the average marginal cost of the system was 54 USD/MWh. In the northern zone, it was 49 USD/MWh, 47 USD/MWh in the center, and 84 USD/MWh in the southern region. In the second quarter, the system marginal cost averaged 66 USD/MWh, with 63 USD/MWh in the north, 65 USD/MWh in the center and 68 USD/MWh in the south of the country. In the third quarter, the system marginal cost fell to an average of 46 USD/MWh, with 46 USD/MWh in the north, 44 USD/MWh in the center and 53 USD/MWh in the south of the country. In the fourth quarter, the system marginal energy cost fell to an average 39 USD/MWh, averaging US$43 USD/MWh in the north, 36 USD/MWh in the center and US$47 USD/MWh in the south. In 2024, the system marginal costs averaged 51 USD/MWh, a significant decrease compared to 2023, when marginal costs averaged 82 USD/MWh. The drop in marginal costs reflects lower fuel prices, an increase in generation explained by the entrance of new renewable assets into the system and the increased contribution of hydraulic generation in 2024. Fuel prices International Fuel Prices Index WTI Brent Henry Hub European coal (API 2) (US$/Barrel) (US$/Barrel) (US$/MMBtu) (US$/Ton) 2023 2024 % Variation 2023 2024 % Variation 2023 2024 % Variation 2023 2024 % Variation YoY YoY YoY YoY Jan 78.1 74.1 -5% 82.2 80.2 -2% 3.18 3.17 0% 167.5 106.1 -37% Feb 77.3 77.8 1% 83.2 83.8 1% 2.39 1.67 -30% 138.3 95.8 -31% March 72.5 81.3 12% 77.5 85.4 10% 2.26 1.49 -34% 138.3 114.4 -17% April 79.6 85.7 8% 83.9 90.1 7% 2.16 1.51 -30% 140.3 118.8 -15% May 71.7 80.0 11% 79.7 81.4 2% 2.15 2.19 2% 119.0 106.0 -11% June 70.4 79.8 13% 79.5 82.2 3% 2.12 2.54 20% 115.6 109.7 -5% July 75.8 81.2 7% 79.9 83.9 5% 2.55 2.06 -19% 110.5 106.4 -4% August 81.6 76.7 -6% 86.3 80.4 -7% 2.61 2.00 -23% 117.7 121.7 3% September 89.6 70.3 -22% 93.9 74.1 -21% 2.63 2.26 -14% 123.3 114.8 -7% October 86.0 71.7 -17% 90.8 75.3 -17% 2.95 2.06 -30% 136.1 119.9 -12% November 77.9 70.0 -10% 83.2 74.4 -11% 2.75 2.15 -22% 123.6 121.9 -1% December 71.8 70.9 -1% 77.6 74.1 -4% 2.52 3.09 23% 117.6 112.3 -5% As shown in the table above, when comparing 2024 to 2023, we can observe declining coal and gas prices and some increases in oil prices. Generation The following graphs provide a breakdown of generation in the SEN by fuel type and by company in 2023 and 2024: 6 12M23: Generation by source 12M24: Generation by source Other Other Coal Coal Gas 3% Gas 3% 15% 17% 15% 19% 83,560 GWh 85,400 GWh Hydro Hydro Renewable 32% Renewable 29% 35% 32% Source: Coordinador Eléctrico Nacional During the first nine months of 2024, demand reached a maximum of 12,190.5 MWh/h on January 31st, 5.6% above the peak demand of 2023. Accumulated sales as of December, 2024, reached 79,582 GWh, with a 2.8% increase in unregulated customer sales and a 2.6% increase in the regulated client segment as compared to the same period of 2023. Regarding renewable energy, solar generation increased by 15.5%, while wind generation rose by 10.5% as compared to 2023. As of December, 2024, the National Electricity System (SEN) reported total gross installed capacity of 36,777.9 MW, including 18,522.5 MW, or 50.3%, qualifying as non-conventional renewable energy capacity, as defined by Law #20,257. In terms of hydraulic generation for the SEN, as of the end of December, the estimated probability of exceedance for the April 2024-Jun 2024 hydrological year was 64.1% (dry year). Electricity production in the SEN grid, broken down by company, was as follows: 12M23: Generation by Company 12M24: Generation by Company ENGIE ENGIE Colbún 5% Colbún 6% 15% 14% Other AES Other AES 41% 6% 85,400 GWh 46% 10% 83,560 GWh Enel Enel 28% 29% Source: Coordinador Eléctrico Nacional 7 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL RESULTS The following discussion is based on our audited consolidated financial statements for fiscal years ended December 31, 2024, and December 31, 2023. These financial statements have been prepared in U.S. dollars in accordance with IFRS and should be read in conjunction with the financial statements and the notes thereto published by the Comisión para el Mercado Financiero ( www.cmfchile.cl ). Fourth quarter of 2024 compared to fourth quarter of 2023 and third quarter of 2024 Operating Revenues Quarterly Information (In US$ millions) 4Q23 3Q24 4Q24 % Variation Operating Revenues Amount % of total Amount % of total Amount % of total QoQ YoY Unregulated customers sales………………….. 209.2 48% 192.5 44% 170.7 44% -11% -18% Regulated customers sales……………………. 171.5 40% 185.4 51% 196.7 51% 6% 15% Spot market sales……………………………….. 51.6 12% 28.5 5% 21.1 5% -26% -59% Total revenues from energy and capacity sales 432.4 91% 406.4 85% 388.5 85% -4% -10% Gas sales………………………….. 13.2 3% 13.4 8% 38.2 8% 184% 189% Other operating revenue………………………. 31.2 7% 27.8 6% 28.7 6% 3% -8% - 0% Total operating revenues…………………. 476.8 100% 447.6 100% 455.4 100% 2% -4% 0% Physical Data (in GWh) 0% Sales of energy to unregulated customers (1)…… 1,783 58% 1,773 57% 1,719 57% -3% -4% Sales of energy regulated customers…… 1,220 40% 1,366 41% 1,253 41% -8% 3% Sales of energy to the spot market……………. 47 2% - 2% 70 2% - 49% 0% Total energy sales…………………………. 3,050 100% 3,139 100% 3,042 100% -3% 0% Average monomic price unregulated customers(U.S.$/MWh)(2) 117.4 108.5 99.3 -9% -15% Average monomic price regulated customers (U.S.$/MWh)(3) 140.6 135.7 157.1 16% 12% Energy and capacity sales reached US$388.5 million in the fourth quarter of 2024, representing a 10% decrease (US$43.9 million), compared to the same quarter of the previous year. This decline can be attributed to lower average monomic prices for unregulated customers. The increase in tariffs to regulated customers in the fourth quarter is a result of adjustments of monthly provisions, which need to be reversed following the publication of tariff decrees. In the fourth quarter of 2024, the provision for sales to regulated customers was adjusted by +US$11.7 million corresponding to the difference between the amounts owed to us pursuant to the PEC laws and the amounts considered in our provision. The opposite occurred in the third quarter, in which the provision for sales had to be adjusted downwards. In the second quarter, sales include an US$18.4 million adjustment. The actual average monomic tariff has not presented significant variations throughout the year and remained in the range of US$145/MWh. When compared to the immediately preceding quarter, energy and capacity sales dropped by 4% (US$17.9 million) due to lower average monomic prices on sales to unregulated customers. The decrease in physical sales to regulated customers is explained by lower demand from final consumers given the tariff increase applied beginning October 2024. Physical sales to unregulated customers also dropped in the last quarter due to a maintenance outage at one of our customers mining operations. In 2023 energy sales in the spot market included energy injections from the Kelar Power Plant operated by BHP under a tolling agreement with fuel provided by EECL. This explained the increase in this category for that period. In 2024, however, there was no tolling agreement, which explains the reduction in physical sales to the spot 8 market in 2024. This item also includes payments for reliquidations related to capacity revenues as determined by the system coordinator. In the fourth quarter of 2024 gas sales increased due to gas exports to Argentina. The most relevant items in the 'Other operating revenue' account are sub-transmission tolls and regulatory transmission revenues, which starting 2018 include a single charge called "cargo único" , as well as port and maintenance services. Operating Costs Quarterly Information (In US$ millions) Operating Costs Fuel and lubricants……………………………… Energy and capacity purchases on the spot market…………………………… Depreciation and amortization attributable to cost of goods sold……………………………. Other costs of goods sold……………………. Total cost of goods sold……………….. Selling, general and administrative expenses… Depreciation and amortization in selling, general and administrative expenses………… Other operating revenue/costs………………………. Total operating costs….………………. Physical Data (in GWh) Gross electricity generation Coal…………………………………………. Gas………………………………………….. Diesel Oil and Fuel Oil……………………. Hydro/Solar/Wind………………………………. Bess Total gross generation…………………. Minus Own consumption……………….. Total net generation……………………. Energy purchases on the spot market……….. Energy purchases- bridge……….. Total energy available for sale before transmission losses……………………… 4Q23 3Q24 4Q24 % Variation Amount % of total Amount % of total Amount % of total QoQ YoY (99.1) 23% (71.8) 20% (74.3) 19% 3% -25% (182.7) 42% (162.9) 46% (165.7) 41% 2% -9% (44.3) 10% (36.0) 10% (34.5) 9% -4% -22% (95.7) 22% (77.6) 22% (115.0) 29% 48% 20% (421.8) 98% (348.3) 98% (389.5) 97% 12% -8% (13.8) 3% (12.7) 4% (16.6) 4% 31% 20% (1.0) 0% (0.9) 0% (1.8) 0% 102% 68% 5.4 -1% 7.0 -2% 8.0 -2% (431.3) 100% (354.9) 100% (399.9) 100% 13% -7% 433 41% 432 31% 319 27% -26% -26% 205 19% 500 36% 390 33% -22% 90% 0 0% 0 0% - 0% 0% -100% 415 39% 403 29% 370 32% -8% -11% - - 55 4% 92 8% 68% 0% 1,054 100% 1,391 100% 1,171 100% -16% 11% (53) -5% (55) -4% (47) -4% -16% -12% 1,000 31% 1,335 41% 1,125 37% -16% 12% 1,299 40% 1,026 32% 865 29% -16% -33% 966 30% 859 27% 1,019 34% 19% 6% 3,265 100% 3,220 100% 3,008 100% -7% -8% Gross electricity generation increased by 11%, compared to the same quarter of 2023, and decreased 16% compared to the previous quarter. The decrease in coal-based generation compared to the previous quarters is explained primarily by lower dispatch priority and the maintenance outage of the IEM plant in the fourth quarter. Gas generation increased compared to the fourth quarter of 2023, but decreased as compared to the third quarter of 2024. Generation with renewables decreased compared to previous quarters, but generation associated with our BESS projects, including the contribution of the new BESS Tamaya, accounted for 8% of our gross generation during the fourth quarter. The 8% decrease in renewable generation compared to the third quarter is mainly explained by the lack of hydraulic generation from the Laja plant in the fourth quarter, although initial energy injections totalling 104 GWh from the Lomas de Tal Tal wind farm were added. ENGIE Chile's renewable portfolio includes the following additions in the past three years: (i) Calama wind farm (151.2 MW) at the end of 2021, (ii) the Tamaya solar PV plant (114 MWac) which started its commercial operations in January 2022, (iii) the Capricornio solar PV plant (88 MWac) starting April 2022, (iv) the Coya PV plant (180 MWac), operational since August 2022, although it obtained its COD as of March 2023, and (v) the San Pedro wind farms acquired in mid-December 2022. In the first quarter of 2024, BESS Coya obtained the authorization by the CEN to start its commercial operation. This battery energy storage system has a 139 MW/638 MWh installed capacity and allows for the storage of energy generated by the Coya photovoltaic plant located in María Elena in the Antofagasta region. In the third quarter of 2024, BESS Tamaya, which is fully energized, began injecting power to the grid in test mode, while waiting for the official declaration of its COD. 9 The fuel cost item showed a 25% decrease compared to the same quarter of the previous year as a result of lower fuel prices and lower own generation. Compared to the third quarter of 2024, fuel costs increased slightly by 3%. The 'Cost of energy and capacity purchases in the spot market' item decreased compared to the fourth quarter of 2023 and increased slightly compared to the third quarter of 2024, mainly due to lower average spot prices and lower volumes of energy purchased in the spot market. Energy purchases through back-up supply contracts with other generation companies reached 1,019 GWh in the fourth quarter, a 6% increase over the 966 GWh purchased in the last quarter of the previous year. Other direct operating costs included, among others, transmission tolls, plant personnel salaries, operating and maintenance costs, insurance premiums and cost of fuels sold. These costs increased from the previous quarter, mainly due to higher provisions related to the energy transition, such as plant dismantling, which had no effect on cash flows. SG&A expenses (excluding their depreciation) increased compared to previous quarters due to increased information technology costs and legal services. The Other operating revenue/cost item includes water sales as well as recoveries, single transmission charges (" cargo único" ) and provisions and other miscellaneous income. EECL's share in TEN's net income, which amounted to US$1.2 million in the fourth quarter of 2024, is also included in this item. Electricity Margin Quarterly Information (In US$ millions) 2023 2024 1Q23 2Q23 3Q23 4Q23 2023 1Q24 2Q24 3Q24 4Q24 2024 Electricity Margin Total revenues from energy and capacity sales……… 531.8 552.3 469.5 432.4 1,986.0 402.2 434.8 406.4 388.5 1,631.9 Fuel and lubricants………………….. (177.3) (194.2) (120.7) (99.1) (591.3) (81.6) (83.2) (71.8) (74.3) (310.9) Energy and capacity purchases on the spot market…… (219.4) (224.3) (189.2) (182.7) (815.6) (157.6) (173.3) (162.9) (165.7) (659.4) Gross Electricity Profit 135.1 133.8 159.6 150.6 579.1 163.0 178.4 171.6 148.5 661.5 Electricity Margin 25% 24% 34% 35% 29% 41% 41% 42% 38% 41% In the fourth quarter of 2024, the electricity margin, or gross profit from the electricity generation business, decreased by US$2.1 million as compared to the fourth quarter of 2023, with gross profit representing 38% of energy and capacity revenues, up from 35%. This was due to lower fuel costs and lower electricity purchase costs, which together reported a 15% decrease, while the decrease in revenues from energy and capacity sales was only 10%. Meanwhile, compared to the third quarter of 2024, there was a US$23.1 million decrease in gross profit, and the gross margin decreased to 38% since revenues from energy and capacity sales decreased by US$17.9 million. This was due to lower average prices of energy sold to unregulated clients, as a result of a decrease in the main tariff indexers (CPI and coal prices) and lower volume sales to both regulated and unregulated clients. At the same time, there was a slight increase in costs, both for fuels (US$2.54 million) and for energy and capacity purchases in the spot market (US$2.8 million). 10

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