Earnings release
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ENGIE EARNINGS RELEASE 2026 ENGIE Brasil Energia S.A. EGIE3 B3 LISTED NM EGIEY OTC MARKET Video conference August 06 , 2026 at 11:00 a.m. ( BRT ) , 10:00 a.m. ( EDT ) in Portuguese with simultaneous translation into English ) Click here to access the transmission Visit our Website www.engie.com.br/investidores CNGIC IBOVESPA B3 ISEB3 IEE B3 S & P Global Engie Brasil Energia S.A Electric Uti Top 5 % Corporate Sustainability Assessment ( CSA ) 2025 Score 88/100 For Immediate Release Additional information : Eduardo Sattamini Chief Executive Officer Pierre Leblanc Chief Financial and Investor Relations Officer Leonardo Depiné IR Manager Leonardo.Depine@engie.com Tel .: +55 ( 48 ) 3221-7904 / 7246 ri.brenergia@engie.com Florianópolis , Brazil , August 5 , 2026. ENGIE Brasil Energia S.A. ( " ENGIE " or " Company " ) - B3 : EGIE3 , ADR : EGIEY - announces earnings for the Second Quarter and 6 months period ending on June 30 , 2026 ( 2026 / 6M26 ) . The information in this release is shown on a consolidated basis and in accordance with Brazilian accounting principles and practices . The values are expressed in Brazilian Reais ( R $ ) , except where otherwise indicated . Rounding effects may cause differences in percentage changes , when comparing the comments on Economic - Financial Performance , presented in R $ million , with the Income Statement ( Appendix III ) , presented in R $ thousand .
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Earnings Release 2Q26 1 Important This material contains information and opinions on future events subject to risks and uncertainties, based on current expectations, projections and tendencies. Several factors may affect the estimates and assumptions which may cause the forward -looking sta tements not to be realized. Therefore, shareholders and investors should not make decisions based solely on these estimates, projections and statements. Asa Branca ENGIE Brasil Energia completes the R$ 8.4 billion follow-on and assumes stake in Jirau Energia. Highlig h t s Net Operating Revenue R$ 3,511 million (+13.8% vs 2Q25). Adjusted Ebitda2 R$ 2,179 million (+16.8% vs 2Q25). Adjusted Net Income R$ 694 million (+23.0% vs 2Q25). Average price of the energy sales agreements R$ 208.3/MWh net of taxes on revenues and trading operations (-4.0% vs 2Q25). Energy sales 10,597 GWh (4,852 average MW) excluding trading operations (+14.1% vs 2Q25). The Company confirmed its participation in the mechanism for renegotiating liabilities due under the Use of Public Assets (UBP) with respect to future obligations associated to the Cana Brava and Ponte de Pedra hydropower plants. The payment of R$ 2.23 billion was finalized on July 20, 2026. The Board of Directors approved the proposal for the merger, by the Company, of its wholly owned subsidiary Companhia Energética do Jari - CEJA. The operation was subsequently approved by the EGM held on July 31. In addition, approval was given to the distribution of a Primary Public Offering of Shares and the calling of an EGM for approving the Valuation Report and the value to be attributed to the shares of Jirau Energia held by ENGIE Brasil Participações.
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Earnings Release 2Q26 2 Summary of Financial and Operational Indicators Consolidated (in R$ million) 2Q26 2Q25 Chg. 6M26 6M25 Chg. Net Operating Revenue (NOR) 3,511 3,086 13.8% 6,920 6,100 13.4% Results from Operations (EBIT) 1,761 1,541 14.3% 3,626 3,262 11.2% Ebitda 1 2,179 1,871 16.5% 4,427 3,915 13.1% Adjusted Ebitda 2 2,179 1,866 16.8% 4,423 3,906 13.2% Adjusted Ebitda by transmission and quota effects 3 1,939 1,715 13.1% 4,027 3,523 14.3% Ebitda / NOR - (%) 1 62.1 60.6 1.5 p.p. 64.0 64.2 -0.2 p.p. Adjusted Ebitda / NOR - (%) 2 62.1 60.5 1.6 p.p. 63.9 64.0 -0.1 p.p. Net Income 1,962 567 246.0% 2,754 1,394 97.6% Adjusted Net Income 694 564 23.0% 1,483 1,387 6.9% Adjusted Return on Equity (ROE) 4 18.3 23.1 -4.9 p.p. 18.3 23.1 -4.9 p.p. Adjusted Return on Invested Capital (ROIC) 5 13.9 15.4 -1.5 p.p. 13.9 15.4 -1.5 p.p. Net Debt 6 25,210 21,561 16.9% 25,210 21,561 16.9% Gross Power Production (avg MW) 7 4,355 4,088 6.5% 5,093 4,736 7.5% Energy Sold (avg MW) 8 4,852 4,254 14.1% 4,878 4,346 12.2% Average Net Sales Price (R$/MWh) 9 208.28 217.01 -4.0% 212.38 215.50 -1.4% Number of Employees - Total 1,402 1,265 10.8% 1,402 1,265 10.8% EBE Employees 1,366 1,240 10.2% 1,366 1,240 10.2% Employees on Under Construction Plants 36 25 44.0% 36 25 44.0% 1 Ebitda: net income + income tax and social contribution + financial result + depreciation and amortization. 2 Adjusted Ebitda: net income + income tax and social contribution + financial result + depreciation and amortization + impairment + non-recurrent. 3 Adjusted Ebitda, less the effects of IFRS in the transmission segment and quota plants. 4 ROE: adjusted net equity for the past 4 quarters /shareholders’ equity. 5 ROIC: effective tax rate x adjusted EBIT / invested capital (invested capital: debt - cash and cash equivalents - deposits earmarked for debt servicing + SE). 6 Adjusted amount, net of gains from hedge operations. 7 Total gross electricity output from the plants operated by ENGIE Brasil Energia. 8 Disregarding sales for quota regime (Jaguara and Miranda HPPs). 9 Net of taxes and trading operations. Subsequent Events On July 2, the Extraordinary General Meeting approved the Valuation Report and the proposed value of the shares, the issuance of Jirau Energia, held by ENGIE Brasil Participações for the purposes of their contribution for the paying of shares in the context of the Primary Public Offering of Shares in the amount of R$ 5.74 billion. On July 17, the settlement of the 274,082,684 new shares issued within the context of the Primary Public Shares Offering of the Company took place, representing an increase of R$ 8.36 billion in the capital stock of the Company. The Board of Directors approved the distribution of R$ 770.8 million as interim dividends (R$ 0.5442/share) representing 55% of the distributable net income reported in the first half of 2026, excluding the financial gain from the renegotiation of the UBP. Shares will become ex-interim dividends as from August 21, 2026 and will be paid on a date to be determined later by the Executive Board.
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Earnings Release 2Q26 3 Message from Management The second quarter 2026 saw some significant strategic advances at ENGIE Brasil Energia, underscoring our leadership position in the energy transition in Brazil. Despite a challenging regulatory and economic environment, we were able to report progress in structural projects and consolidation of operations which expand our presence in the segments of energy generation and transmission. In transmission, there were some consistent advances in projects with work in progress. For example, the Asa Branca transmission system received its full Installation License, allowing a start to be made on civil works, while in the case of Graúna, important progress was made in environmental licensing processes and land usage agreements. In addition, on June 26, we signed a concession agreement with respect to the lots, a result of successful bidding by the Company at the first transmission auction of 2026 – denominated Colibri Transmission System. The new projects are to reinforce our presence in strategic assets and will contribute to the generation of long -term revenue flows. As to the Free Energy Market (MLE), we expanded free consumer numbers by 42.3% compared with the same period last year, a reflection of customer trust in our solutions and in line with the expansion in the free contracting environment as a whole. Another highlight of the period was the Company’s adherence to the mechanism for renegotiating the liabilities under the Use of Public Assets (UBP) of the Cana Brava (GO) and Ponte de Pedra (MT) hydropower plants, with the recognition of a non-recurring effect of R$ 1.3 billion on net income, payment of which was finalized on July 20, 2026. This initiative will contribute to greater financial predictability and further support our discipline in the management of future obligations. In the financial context, we reported net operating revenue for the second quarter of 2026 of R$ 3 .5 billion (+13.8%), driven by the performance of short -term operations and free and regulated market contracts. In addition, the transmission segment contributed positively to revenue growth. Adjusted Ebitda posted R$ 2 .2 billion, representing an increase of 16.8% in relation to 2Q25. Adjusted net income amounted to R$ 694 million, 23.0% higher year -on-year, reflecting the robustness and consistency of our operational and financial performance. Among the events subsequent to the quarter in review, particular mention should be made of the primary public offering of common shares (follow-on), approved at an Extraordinary General Meeting. The operation resulted in the issuance of more than 274 million shares and equivalent to R$ 8.36 billion, permitting the transfer of ENGIE Brasil Participações’ stake in Jirau Energia S.A. to the Company. Of this amount, R$ 2.62 billion were raised in the market and a further R$ 5.74 billion corresponded to the stake in Jirau. The price per share was set at R$ 30.50, through a process of bookbuilding, with priority rights to the shareholders. Settlement occurred on July 17, 2026, thereby increasing the Company’s capital stock to R$ 15.22 billion. This transaction marked the return of ENGIE Cana Brava HPP The Company financially settled the agreement relating to the renegotiation of liabilities under the UBP for the Cana Brava and Ponte de Pedra hydropower plants in the amount of R$ 2.23 billion.
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Earnings Release 2Q26 4 Brasil Energia to the capital markets, 21 years after the last share offering, reinforcing investor confidence in the Company’s strategy, as well as its long-term commitment to electric energy sector development and to Brazil. On the socio -environmental front, for the 21 st consecutive year, we maintained our listing in B3’s Corporate Sustainability Index (ISE) while remaining a component of the Dow Jones Best-in-Class Emerging Markets. In both cases, these rankings are reaffirmation of our commitment to recognized international practices of good governance and sustainability. The publication of the Sustainability Report 2025 also further reinforces our transparency and performance in accelerating the transition to a low carbon energy matrix. We remain focused on the expansion of our renewable portfolio, the strengthening of the transmission assets and the maintenance of a high degree of operational uptime. We believe that the combination between financial robustness, innovation and socio-environmental responsibility will continue creating value for our shareholders, our customers and for Brazil. Good reading! Eduardo Sattamini Chief Executive Officer Pierre Leblanc Chief Financial and Investor Relations Officer
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Earnings Release 2Q26 5 Breakdown of Assets Energ y Generation Assets At the end of the 2Q26, ENGIE Brasil Energia had 11,265.9 MW of installed capacity and operates a generating complex with 12,965.6 MW, comprised of 145 plants (13 hydro and 132 complementary energy source plants — biomass, SHP, wind powered and solar), 1 42 of which are wholly -owned by the Company and three (the Itá, Machadinho and Estreito Hydropower Plants) jointly-owned through consortia with other companies. | Generating Complex as of June 30, 2026 1 For the composition of wind and solar complexes. 2 The Lar do Sol plant does not have a declared physical guarantee, therefore its commercial capacity is based on expected generation. 3 For generating plants with installed capacity lower than or equal to 5 MW the legal instrument applicable is the record. Total Company's Share Itá Hydro Uruguai River (SC and RS) 1,450.0 1,126.9 Dec/32 528.7 Salto Santiago Hydro Iguaçu River (PR) 1,420.0 1,420.0 Nov/30 702.2 Machadinho Hydro Uruguai River (SC and RS) 1,140.0 414.8 Oct/35 143.7 Salto Osório Hydro Iguaçu River (PR) 1,103.7 1,103.7 Apr/31 487.3 Estreito Hydro Tocantins River (TO and MA) 1,087.0 435.6 Feb/47 244.1 Cana Brava Hydro Tocantins River (GO) 450.0 450.0 Dec/35 247.8 Jaguara Hydro Grande River (MG) 424.0 424.0 Jun/48 324.0 Miranda Hydro Araguari River (MG) 408.0 408.0 Jun/48 188.3 Santo Antônio do Jari Hydro Jari River (AP and PA) 393.0 393.0 Oct/45 211.3 São Salvador Hydro Tocantins River (TO) 243.2 243.2 May/42 140.8 Passo Fundo Hydro Passo Fundo River (RS) 226.0 226.0 Apr/31 107.5 Cachoeira Caldeirão Hydro Araguari River (AP) 219.0 219.0 Aug/48 123.3 Ponte de Pedra Hydro Correntes River (MT) 176.1 176.1 Aug/37 127.6 Total - Hydro 8,739.9 7,040.2 3,576.5 Total Company's Share Serra do Assuruá Complex Wind Farm 24 Gentio do Ouro (BA) 846.0 846.0 Nov/56 410.2 Assu Sol Complex Solar 16 Assú (RN) 752.7 752.7 Feb/57 229.6 Santo Agostinho Complex - Phase I Wind Farm 14 Lages and Pedro Avelino (RN) 434.0 434.0 May/56 224.2 Campo Largo II Complex Wind Farm 11 Umburanas (BA) 361.2 361.2 Aug/54 192.5 Umburanas Complex - Phase I Wind Farm 18 Umburanas (BA) 360.0 360.0 Aug/49 213.3 Campo Largo I Complex Wind Farm 11 Umburanas (BA) 326.7 326.7 May/51 166.5 Trairi Complex Wind Farm 8 Trairi (CE) 212.6 212.6 Sep/41 97.2 Lar do Sol Complex2 Solar 3 Pirapora (MG) 198.0 198.0 Apr/54 49.0 Paracatu Complex Solar 4 Paracatu (MG) 132.0 132.0 Jun/51 34.0 Juazeiro Complex Solar 4 Juazeiro (BA) 120.0 120.0 Jun/51 34.8 Sertão Solar Complex Solar 4 Barreiras (BA) 94.6 94.6 Jul/53 26.1 Floresta Complex Solar 3 Areia Branca (RN) 86.0 86.0 Jun/51 25.1 Sol do Futuro Complex Solar 3 Aquiraz (CE) 81.0 81.0 Jun/51 16.2 Ferrari Termoelétrica Biomass Pirassununga (SP) 72.5 72.5 Jun/42 12.4 São Pedro Complex Solar 2 Bom Jesus da Lapa (BA) 54.0 54.0 Mar/51 16.0 Assú V Solar Assú (RN) 34.0 34.0 Jun/51 9.2 Rondonópolis SHP Ribeirão Ponte de Pedra (MT) 26.6 26.6 Dec/37 14.0 José Gelazio da Rocha SHP Ribeirão Ponte de Pedra (MT) 24.4 24.4 Dec/37 9.2 Nova Aurora Solar Tubarão (SC) 3.0 3.0 not applicable3 0.2 Tubarão Wind Farm Tubarão (SC) 2.1 2.1 not applicable3 0.3 Tubarão 2 Wind Farm Tubarão (SC) 4.2 4.2 not applicable3 0.0 Total - Complementary 4,225.6 4,225.6 1,780.1 Total 12,965.6 11,265.9 5,356.6 Power Plants Source Location Source Location Installed Capacity (MW) Installed Capacity (MW) Commercial capacity (aMW) Company's Share Generating Units1 Commercial capacity (aMW) Company's Share Concession expiration date Power Plants Authorization expiration date
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Earnings Release 2Q26 6 Energy Transmiss ion Assets | Transmission Assets under Operation as of June 30, 2026 Transmission Line Location Extension km Annual RAP (R$ million) * Substations Property Concession expiration Gralha Azul Paraná 909.0 365.3 5 own and expansion of 5 existing ones 100% Mar/48 Novo Estado Pará and Tocantins 1,800.0 484.9 1 own and expansion of 3 existing ones 100% Mar/48 Gavião Real Pará - 8.2 New patio in 1 existing 100% Sep/52 Graúna – brownfield section Minas Gerais and Espírito Santo 162.0 14.5 2 existing ones 100% Dec/54 Asa Branca - Morro do Chapéu II - Poções III section Bahia 334.0 96.4 Expansion of 2 related ones 100% Sep/53 Total 3,205.0 969.3 * RAP: Annual Allowed Revenue. / Values on the base date of June 2026 (cycle 2026-2027), net of PIS and Cofins charges. Gas Transport ation Assets Transportadora Associada de Gás S.A. – TAG. The largest natural gas transportation operation in Brazil, TAG has an infrastructure of approximately 4,600 km of high-pressure gas pipelines extending along the southeastern and northeastern seaboards as well as a further section of line between Urucu an d Manaus, in the state of Amazonas, crossing 10 Brazilian states and around 200 municipalities. The gas pipeline network has several connection points, among them, 14 gas entry points (including 2 Liquified Natural Gas (LNG)), 92 gas outlet points, 2 bidirectional entry and outlet points and 1 interconnection point, plus connection with 10 gas distributors, 2 refineries, 20 thermoelectric power plants and 2 fertilizer plants. The network includes also 11 own compressor stations along its length. The operation of the assets is executed from the Control and Supervision Center (CSC) in the company’s headquarters in the city of Rio de Janeiro. Following the expiry of the legacy Malha -NE contract in December 2025, TAG remains contracted for 76% of its capacity on the basis of long -term legacy agreements with Petrobras and for 24% through new contracts , covering the network’s main delivery points. By the end of the second quarter of 2026, 1,005 gas transportation contracts had been signed, representing 53% of the total from the previous year and a 55% increase compared to the number contracted by the end of the second quarter of 2025. The regulator is currently undertaking a Tariff Review of TAG’s Northeast Network (Malha -NE) se ction to determine the new Maximum Allowable Revenue (MAR). The key decision taken so far was the setting up of the WACC (Weighted Average Cost of Capital) at 7.63%. While the review process remains ongoing, firm annual agreements continue at unadjusted 2025 tariffs. However, the bidding processes for 2026 have already resulted in the signing of 73 contracts (versus 47 in the 2025 process). Currently, TAG has 29 firm capacity shippers, including producers, distributors, and a growing presence of traders and eligible consumers, confirming the dynamism of the natural gas market. Excluding Petrobras, the other shippers with annual contracts have an average of 11.5 million m³/day contracted in 2026. | Corporate Structure 32.5% 17.5% 50% ENGIE Brasil Energia ENGIE S.A. Solimões Basin Recôncavo Basin Santos Basin Campos Basin Espírito Santo Basin Sergipe Alagoas Basin PA MA PI TO MT RO AC RR AP CE RN BA MG GO MS SP PR SC RS ES RJ PB PE AL SE AM LNG Terminal LNG terminal disconnected, deactivated, or non-operational
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Earnings Release 2Q26 7 | Highlights of the semester • TAG began the daily execution of the Gas for System Use (GUS) Acquisition Processes across the Balancing Platform, while simultaneously offering—on every business day—contracting windows for short-term products (Annual Flexible, Quarterly, Monthly, and Daily), thereby increasing flexibility and simplifying operations for shippers. • Following the Capacity Reserve Auction in the form of Power (LRCAP) held in March 2026, 23 of the 59 projects located in the region served by TAG (2.2 GW) expressed interest in connection up to the grid, reinforcing the integration of thermal power plants in the system and at affordable tariffs. By the end of the 2Q26, the process of formalizing Letters of Commitment for firm natural gas transportation services was underway; this step is required for verification with the ANP and is a necessary condition for signing the Capacity Reserve Contracts. • In May, the ANP issued the Operating Permits for the Itagibá and Buriti projects—two new delivery points built by TAG to meet local demand. | Projects: TAG has a series of projects in hand to be executed over the next five years with planned investments of R$ 4.1 billion. 55% of this amount will be allocated in expansion projects, in line with the positive outlook of ENGIE Group for the natural gas industry in Brazil. Under development: • LRCAP delivery points (BA , AL, PE, PB): 5 new delivery points to meet LRCAP thermoelectric demand. Collectively, these points will have a maximum transport capacity of ~9 million m³/day. • Veredas (AL, PE): new infrastructure to meet additional LRCAP thermal demand, involving the construction of ~30 km of pipeline, as well as the construction and expansion of Compressor Stations (ECOMPs). The project's incremental capacity is 7.5 million m³/day. • Suape entry point (PE): a new entry point to connect the LNG Terminal to the Port of Suape (T ermopernambuco). The point will have a maximum transport capacity of 14.3 million m³/day and a length of 2 km, with the potential for expansion to 9 km. • Connection of the Porto do Açú - GASOG (RJ): Goytacazes gas pipeline to connect the Porto do Açú regasification terminal to the Cabiúnas-Vitória gas pipeline, with 45 km of extension and 10 million m 3/day of transportation capacity. The preliminary agreement for the design was approved at the end of 2022. | Contracts Breakdown Contract/Section Extension (km) Type Customer Contract Maturity Capacity2 (MM m³/day) Readjustment index Gasene 1,400 Legacy Petrobras Nov-33 30.3 46% Basket IGP4; 54% US PPI Urucu-Coari-Manaus 800 Legacy Petrobras Nov-30 6.7 50% IGP-M; 50% IPCA Pilar-Ipojuca 200 Legacy Petrobras Nov-31 15.0 IGP-M Malha Nordeste1 2,100 Not-Legacy Varius - -3 - Lagoa Parda-Vitória1 100 Not-Legacy Varius Annual 0.3 55% IGP-M; 45% IPCA Conexão GNL Sergipe1 25 Access connection Eneva Oct-54 14.0 20% IGP-M; 80% IPCA T otal ~4,600 1 Capacity contracted under the entry and exit regime through the Capacity Offer Portal (POC). 2 Reference volume stipulated in the contract for ship-or-pay purposes. The actual contracted volume may vary in each period. 3 Volume to be defined in the tariff review process promoted by the ANP. 4 1/3 IGP-M, 1/3 IPA-DI; 1/3 IGP-DI.
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Earnings Release 2Q26 8 Expans ion Jirau Energia - Rondônia Jirau Energia is responsible for the maintenance, operation and sale of energy generated by the Jirau Hydroelectric Power Plant, located on the Madeira River, in the city of Porto Velho, state of Rondônia. The Jirau Hydro Power Plant has had 50 generating units in operation since November 2016, representing a total installed capacity of 3,750 MW. On May 20, 2025, the Ministry of Mines and Energy (MME) issued Order N° 2,946, establishing the new physical guarantee amounts for Jirau HPP. The defined values are 2,222.6 average MW for operation at the 90 -meter extended level and 2,335.1 average MW for operation at the 90-meter constant level. Of the total increase in firm energy, one -third belongs to the Bolivian government. As a result, the portion allocated to Brazil corresponds to 2,182.2 average MW at the 90 -meter extended level and 2,257.2 average MW at the 90 -meter constant level. In 2Q26, Jirau Energia generated 2,613 average MW, 4.6% higher than the 2,497 average MW for 2Q25, while the National Electrical System Operator Uptime Ratio (FID) was 100% (data subject to final Electric Energy Trade Board (CCEE) booking). Out of the total generated in 2Q26, the quota attributed to Brazil was 2,565 average MW, discounting the quota pertaining to the Bolivian government. On July 02, 2026, the Extraordinary General Meeting of ENGIE Brasil Energia approved the Valuation Report and the proposed value of the shares, the issuance of Jirau Energia, and held by ENGIE Brasil Participações (EBP), for their contribution to the paying in of shares within the context of the Distribution of the Primary Public Offering of Shares of the Company for which value was set at R$ 5.74 billion. On July 14, 2026, the Company’s Board of Directors approved the increase in capital stock reflecting this operation. Settlement was concluded on July 17, 2026, with the transfer of EBP’s 40% stake in Jirau Energia to ENGIE Brasil Energia. | Ownership Structure 40% 40% 20% Brasil Energia Axia Energia Mitsui & CO. As of July 17, 2026 | Jirau Energia PPA’s Portfolio | Average MW * Concession extension until August 16, 2047, approved by Aneel, pursuant to Homologatory Resolution No. 3,598, dated July 14, 2026.
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Earnings Release 2Q26 9 PR Lot 2 SC CE RN Lot 3 Reserve Energy Auction – Jaguara Hydropower Plant In the Capacity Reserve Auction Number 2/2026 in the form of Power, the Company committed to sell 195.78 MW for a term of 15 years, delivery beginning on August 1, 2030. Fixed annual revenue is R$ 270.4 million (baseline September 2025), restated annually at the IPCA. The expansion of installed capacity will be achieved by motorizing two existing turbine bays at the Jaguara Hydropower Plant , with the installation of two 116 MW turbines, totaling 232 MW. The estimated total investment is approximately R$ 1.2 billion (baseline March 2026). Located on the Rio Grande River, on the Minas Gerais and São Paulo state divide, the Jaguara Hydropower Plant has 424 MW of installed capacity (324 average MW of commercial capacity), the current concession expiring June 2048. Currently, 70% of its commercial capacity is under a quota system while 30% is allocated to the Free Contracting Environment (ACL). During the second quarter of 2026, a start was made on the executive project and integrated planning of the expansion with the aim of meeting the established time frame. Colibri Transmission System – Paraná, Santa Catarina, Ceará and Rio Grande do Norte Following a successful bid in Aneel’s Transmission Auction 01/2026, Lots 2 and 3 were nominated Colibri Sul and Colibri A, B, C and D, respectively, and have the following characteristics: • Lot 2 – Colibri Sul – construction of a transmission line of 230 kV of approximately 143 kilometers in the states of Paraná and Santa Catarina. The project enjoys local and operational synergies with both Gralha Azul (already operating) and Graúna (in the process of implementation) systems. The contracted RAP for this stretch is R$ 18.1 million and an investment of the order of R$ 193.6 million. • Lot 3 - Colibri A, B, C and D – divided in sublots 3A, 3B, 3C and 3D, involves the installation of five synchronous compensators in the states of Ceará and Rio Grande do Norte, where the Company already has generation assets, so enhancing operational efficiency and synergy. At an estimated investment of R$ 1.4 billion, the contracted RAP for the lot is R$ 104.7 million. The term of the public transmission service concession, including licensing, construction, operation, and maintenance of transmission facilities, is 30 years, effective from the date the concession agreement is signed, which took place on June 26, 2026. The deadline for commencing operations is December 2029. Block Location Contracted RAP (R$ million) Estimated Aneel Capex (R$ million) 2 Paraná and Santa Catarina 18.1 193.6 3 Ceará and Rio Grande do Norte 104.7 1,381.1 Total 122.8 1,574.7 Jaguara HPP
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Earnings Release 2Q26 10 Proje c ts under I mpl ementation Asa Branca Transmission System - Bahia, Minas Gerais and Espírito Santo Acquired in the Transmission Auction 01/2023, promoted by Aneel, Block 5 was named Asa Branca and will have around 1,000 kilometers of extension. Located in the states of Bahia, Minas Gerais and Espírito Santo the project provides for the implementation of four 500kV single -circuit transmission lines. The concession period for the public transmission service, including licensing, construction, ope ration and maintenance of the transmission facilities will be 30 years from the start of the concession agreement, as of September 27, 2023. On November 26, 2025, the 334 -kilometer 500kV Morro do Chapéu II - Poções III section was energized , representing 32.3% of total RAP. On April 17, 2026, the Federal Environmental Protection Agency (Instituto Brasileiro de Meio Ambiente e Recursos Naturais) - Ibama, issued the full Installation License for the project, thus triggering a start on the execution of activities with immediate effect. These currently consist of civil work on the transmission lines and expansion of the substations. The maximum deadline for starting operations is March 2029. Block Location Contracted RAP (R$ million)1 Estimated Aneel Capex (R$ million) 5 Bahia, Minas Gerais and Espírito Santo 296.0 2,667.0 Total 296.0 2,667.0 1 Value as of June 2026. Medeiros Neto II Substation Under operation MG BA ES
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Earnings Release 2Q26 11 Graúna Transmission System – Santa Catarina, Paraná, Minas Gerais, São Paulo and Espírito Santo Winner of the Aneel Transmission Auction 02/2024, Block 1 was denominated Graúna and contemplates the implantation of six new transmission lines, one of which is a sectioning, totaling around 738 kilometers in length , in addition to two new substations and five expansions of existing substations, in the states of Santa Catarina, Paraná, Minas Gerais and São Paulo. The scope of the project also includes the operation of existing assets (brownfield), totaling 162 kilometers of transmission lines and two substations in the states of Minas Gerais and Espírito Santo. The transmission line concession will be 30 years from the signature date of the concession agreement, which occurred on December 9, 2024. On July 18, 2025, the Company assumed the operation of the brownfield section , whose Annual Permitted Revenue (RAP) is R$ 14. 5 million, equivalent to approximately 5% of the project total. In 2Q26, steady progress was made on the project within the coordinates of its key implementation pillars, of particular note being the issuance of the Preliminary License for the stretch under the responsibility of the environmental agency for the state of Santa Catarina. Significant progress was also made with environmental licensing and land usage/acquisition agreements. In addition, mobilization orders were issued to beg in expansion work on the existing 345 -kV Jaguara and 345-kV Araxá III substations. Engineering and procurement activities also continued a pace, including factory testing and inspections. The project schedule remains on track according to the timeline set forth in the concession agreement. The maximum permitted term for construction is 60 months (December 2029), albeit with the possibility of abbreviating the period. The project enjoys synergies with other assets in the Company’s portfolio, favoring operational and strategic gains. Block Location Contracted RAP (R$ million)1 Estimated Aneel Capex (R$ million) 1 Santa Catarina, Paraná, Minas Gerais, São Paulo and Espírito Santo 281.0 2,933.6 Total 281.0 2,933.6 1 Value as of June 2026. SC PR MG SP BA GraúnaMS GO RJ ES Graúna Transmission assets (Gralha Azul and Asa Branca) Graúna greenfield lot – under implementation Graúna brownfield lot – operational (5% of RAP) Generation assets under operation
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Earnings Release 2Q26 12 Proje c ts under Development Projects under development are in the pipeline and at a feasibility studies stage, and awaiting adequate commercial conditions and evidence of future pricing for investments. Plants Source Location Installed Capacity (MW) Total Company’s Share Santo Agostinho Solar Complex Solar Lajes and Pedro Avelino (RN) 509.0 509.0 Santo Agostinho Wind Complex - Phase II Wind Lajes and Pedro Avelino (RN) 279.0 279.0 Umburanas Wind Complex – Phase II Wind Umburanas (BA) 250.0 250.0 Campo Largo III Wind Complex Wind Umburanas and Sento Sé (BA) 250.0 250.0 Alvorada Solar Complex Solar Bom Jesus da Lapa (BA) 100.0 100.0 Total 1,388.0 1,388.0 Besides the abovementioned projects, the Company is also examining opportunities in areas with high energy potential, as well as partnerships which could accelerate the development in line with the process of energy transition of ENGIE Group. Opera ting Development Energy Generating Park and Transmission Lines Uptime In 2Q26, the hydropower plants operated by ENGIE Brasil Energia, recorded an internal uptime rate of 98.9%, (taking into account forced and programmed stoppages), an increase of 5.5 p.p. compared to the same quarter of the previous year, when it reached 93.4%. This variation is primarily due to the pre- and post-modernization contractual inspections and tests carried out at the Jaguara, Miranda, and Salto Osório hydroelectric power plants during the second quarter of 2025. As to the wind plants, the 2Q26 internal energy uptime rate was 94.5%, 2.1 p.p. greater than the 92.4% in 2Q25. The improvement was driven primarily by the performance evolution of the Santo Agostinho Wind Complex and the stabilization of availability at a positive level across the remaining plants. Regarding the photovoltaic plants the uptime rate was 96.7% in 2Q26, an increase of 0.4 p.p. compared to 96.3% recorded in 2Q25. This improvement reflected the implementation of measures aimed at enhancing operational performance and the inclusion of the Assú Sol Photovoltaic Complex in the indicator's composition. In the case of the transmission assets Gralha Azul, Novo Estado, Gavião Real, Graúna and Asa Branca, ENGIE Brasil Energia continues to register high operational performance with a total uptime rate of 99. 96% in 2Q26 and 99.97% in the 6M26, indicators in line with those recorded in the same periods of 2025. | Uptime Operating | Considering Scheduled and Forced Shutdowns
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Earnings Release 2Q26 13 Energy Ge neration In the second quarter of 2026, electricity generation at plants operated by ENGIE Brasil Energia totaled 9,511 GWh (4,355 average MW), a result 6.5% higher than production in the 2Q25. Out of the total generated, the hydropower plants accounted for 6,533 GWh (2,991 average MW) while complementary power plants responded for 2,978 GWh (1,364 average MW). These results represent an increase of 10.5% in generation from hydro power plants and a reduction of 1.2% in complementary power plants, compared to 2Q25. The year-on-year increase in hydroelectric generation in the second quarter 2026 was largely driven by the acquisition of the Santo Antônio do Jari and Cachoeira Caldeirão hydropower plants, the two contributing with an output of 838 GWh (384 average MW) in 2Q26. Also worth pointing out is that both the Amazonas and Araguari river basins where these assets are located, reported above average flows during the period in the light of a prolonged rainy season, this in turn providing greater water availability and so driving plant performance. By contrast, the Southern region of Brazil suffered from less favorable hydrometeorological conditions with corresponding below -average river flows at the hydropower plants with a consequent reduction in water storage levels in the majority of reservoirs. In the case of the Southeast/Central-West subsystem, the transition between rainy and dry seasons, characteristic of the second quarter, also saw reduced flows, limiting hydroelectric generation from the plants located in the region. The decrease in generation from the complementary plants in 2Q26 compared to 2Q25 was impacted by the increase in curtailment, more especially in the case of wind power plants. In the quarter, these assets generated 2,224 GWh (1,019 average MW), volume 6.0% lower than recorded in the same period of 2025. On the other hand, the Company’s solar plants recorded a positive performance with generation of 650 GWh (298 average MW), an increase of 26.0% compared with 2Q25. The growth was largely driven by the entry into commercial operations of all the solar farms in the Assú Sol Photovoltaic Complex, contrib uting with 324 GWh (148 average MW) in the quarter, a volume 51.0% greater than posted in the same period in 2025. In addition, the reconstructed Paracatu 4 Photovoltaic Plant also boosted solar energy generation during the period. Also worth remembering that the decrease in the Company’s hydropower generation does not necessarily cause deterioration in economic -financial performance. Similarly, an increase in this type of generation does not necessarily imply a growth in economic -financial pe rformance. This is due to the application of the Energy Reallocation Mechanism (MRE), where the inherent hydrological risks of hydropower generation are shared proportionally among MRE participants. | Generation | Avg MW | Generation by Complementary Source | Avg MW
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Earnings Release 2Q26 14 Curtailment According to the National Electric System Operator’s (ONS), there are three main categories of curtailment: Energetic (when it is impossible to allocate generation to the load), Electrical Reliability (due to reasons related to the electrical reliability of equipment external to the plants) and External Unavailability (caused by unavailability of facilities external to the plants). Law 15,269, promulgated in November 2025, establishes a compensation system for generation cuts in the case of Electrical Reliability and External Unavailability as from September 01, 2023 to November 2025, based on the regulations of the Law. According to the analysis of data released by the ONS, in 2Q26, wind and solar power plants operated by ENGIE Brasil Energia recorded generation curtailment of 20%, slightly above the 19% observed for the group of power plants that make up the National Interconnected System (SIN). The Company’s wind power plants recorded a 17% reduction in generation, slightly higher than the 15% posted for the SIN, while solar plants registered curtailment of 27%, slightly lower than the 29% observed for the SIN, as shown in the table below: | % Curtailment by source 2Q26 2Q25 Wind Solar Total Wind Solar Total Curtailment ENGIE Brasil Energia 17% 27% 20% 12% 26% 16% Curtailment SIN 15% 29% 19% 11% 26% 15% | % Curtailment by asset Wind power plants Commercial capacity (avgMW) 2Q26 (%) 2Q25 (%) Trairi (CE) 97.2 25% 27% Santo Agostinho (RN) 224.2 32% 18% Serra do Assuruá (BA) 846.0 16% 12% Campo Largo I e II (BA) 359.0 9% 8% Umburanas (BA) 213.3 20% 8% Solar power plants Commercial capacity (avgMW) 2Q26 (%) 2Q25 (%) Sol do Futuro (CE) 16.2 29% 20% Assú Sol (RN) 229.6 29% 22% Floresta (RN) 25.1 19% 40% Assú V (RN) 9.2 29% 25% Juazeiro (BA) 34.8 24% 16% Sertão Solar (BA) 26.1 46% 34% São Pedro (BA) 16.0 46% 39% Lar do Sol (MG) 53.0 26% 32% Paracatu (MG) 34.0 22% 21% Source: In-house study by ENGIE Brasil Energia based on assumptions published by the ONS and subject to updates. | % Curtailment over 2Q26 Generation | Average MW
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Earnings Release 2Q26 15 Electric Energy Sales Portfolio We show below the participation of the Company’s customers (with the exception of CCEE and other revenues) in total physical sales and in the total of Net Operating Revenue (NOR) of the generation segment. | Breakdown of Customers by Physical Sales (%) | Breakdown of Customers in Contracted Sales Comprising NOR of the Generation Segment (%)
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Earnings Release 2Q26 16 Commercialization Strategy of Electric Energy The Company pursues a commercial strategy of gradual sales of future energy availability for any given year as a means of mitigating the risk of exposure to spot prices (Price for Settlement of Differences — PLD) for that particular year. Electric energy sales are made during windows of opportunity that open when the market shows greater buying propensity. ENGIE Brasil Energia’s energy balance based on proprietary commercial capacity and power purchasing agreements outstanding as of June 30, 2026, is as follows: | Energy Balance 1 XXXX-YY-WWW-ZZ, where: XXXX ➔ year of auction YY ➔ EE = existing energy or NE = new energy WWWW ➔ year of delivery start ZZ ➔ supply contract duration (in years) 2 Sales price, including trading operations, is net of ICMS and taxes over revenue (PIS/Cofins, R&D), i.e. future inflation is not considered. 3 Disconsidering sales for quota regime (Jaguara and Miranda HPPs). 4 Purchase net prices, considering trading operations and benefits from PIS/Cofins credits, i.e. future inflation is not considered. Notes: - The balance refers to the settlement point (net of losses of internal consumption of the plant). - The average prices are considered simply estimates and are based on financial planning revisions, not capturing volume changes, which are updated quarterly. (in average MW) 2026 2027 2028 2029 2030 Own Resources 5,169 5,202 5,202 5,202 5,161 + Purchases for Resale 800 527 381 232 248 = Total Resources (A) 5,969 5,729 5,583 5,434 5,409 Government Auction Sales1 2,178 2,347 2,433 2,249 2,163 2005-NE-2010-30 200 200 200 200 200 115.1 Dec-05 337.4 303.1 2006-NE-2009-30 493 493 493 493 493 128.4 Jun-06 370.2 332.6 2006-NE-2011-30 148 148 148 148 148 135.0 Nov-06 386.4 347.2 2007-NE-2012-30 256 256 256 256 256 126.6 Oct-07 348.5 313.1 Proinfa 19 19 19 19 19 147.8 Jun-04 407.4 392.5 2014-NE-2019-25 10 10 10 10 10 206.2 Nov-14 391.5 377.2 2014-NE-2019-20 82 82 82 82 82 139.3 Nov-14 256.0 232.3 2015-NE-2018-20 46 46 46 46 46 188.5 Aug-15 321.0 291.3 8th Reserve Energy Auction (Assú V/Floresta/ Paracatu/Juazeiro/Sol do Futuro) 119 119 119 119 119 298.2 Nov-15 493.5 447.9 7th Reserve Energy Auction (São Pedro) 15 15 15 15 15 301.8 Nov-15 515.3 467.7 2017-EN-2019-20 48 48 48 48 48 136.4 Nov-14 256.5 232.8 2017-EN-2021-20 (Sertão Solar) 27 27 27 27 27 189.5 Nov-14 218.1 197.9 2024-EE-2025-2 15 - - - - 162.6 - 162.6 147.6 2012-EN-2017-30 151 151 151 151 151 95.3 Dec-12 192.5 174.7 2010-EN-2015-30 190 190 190 190 190 104.0 Dec-10 243.5 220.9 2025-EE-2027-3 - 184 270 86 - 207.7 Nov-25 207.7 188.5 Government Auction - Quotas regime 2018 - Quotas (UHJA) - 2018-30 227 227 227 227 227 - Jul-17 220.0 209.9 2018 - Quotas (UHMI) - 2018-30 132 132 132 132 132 - Jul-17 253.0 241.3 + Bilateral Sales 3,160 2,539 1,959 1,208 1,050 = Total Sales (B) 5,338 4,886 4,392 3,457 3,213 - Commercial hedge 572 572 572 572 572 Balance (A - B) 59 271 619 1,405 1,624 Sales average net price (R$/MWh) 2, 3: 244.1 232.2 239.8 Purchases average net price (R$/MWh) 4: 214.7 195.4 174.1 Auction Gross Price Reference Date Adjusted Gross Price Price Net of PIS/ Cofins/P&D In R$/MWh
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Earnings Release 2Q26 17 Economic - Financial Performance | Results by segment – 2Q26 X 2Q25 | R$ million Electric energy Generation¹ Transmission Trading Gas transportation Consolidated 2Q26 Net operating revenue 2,707 689 115 - 3,511 Operational costs (1,348) (334) (109) - (1,791) Gross income 1,359 355 6 - 1,720 Selling, general and administrative expenses (133) (2) (6) - (141) Other operating expenses, net (1) 52 - - 51 Equity income - - - 130 130 Income (loss) before financial results and taxes 1,225 405 - 130 1,760 2Q25 Net operating revenue 2,280 740 66 - 3,086 Operational costs (1,110) (482) (66) - (1,658) Gross income (loss) 1,170 258 - - 1,428 Selling, general and administrative expenses (131) (6) (2) - (139) Other operating revenues, net 8 40 - - 48 Disposal of subsidiary 5 - - - 5 Equity income - - - 199 199 Income (loss) before financial results and taxes 1,052 292 (2) 199 1,541 Change Net operating revenue 427 (51) 49 - 425 Operational costs (238) 148 (43) - (133) Gross income 189 97 6 - 292 Selling, general and administrative expenses (2) 4 (4) - (2) Other operating expenses, net (9) 12 - - 3 Disposal of subsidiary (5) - - - (5) Equity income - - - (69) (69) Income (loss) before financial results and taxes 173 113 2 (69) 219 ¹ Generation and sale of electric energy from the Company’s portfolio (“Generation”). The Company’s financial result is not allocated by segment since Management administers the cash flow on a consolidated and corporate basis.
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Earnings Release 2Q26 18 Net Operating Revenue | Operating revenue by segment – 2Q26 X 2Q25 | R$ million Electric Energy Generation Transmission Trading Consolidated 2Q26 Free contracting environment1 1,120 - - 1,120 Regulated contracting environment2 1,087 - - 1,087 Remuneration of concession assets 164 399 - 563 Transactions in the short-term energy market 271 - - 271 Construction revenue - 239 - 239 Energy trading operations - - 110 110 Service rendered revenue 42 51 - 93 Indemnifications 5 - - 5 Unrealized gains on trading operations - - 5 5 Other revenues 18 - - 18 Net operating revenue 2,707 689 115 3,511 2Q25 Free contracting environment 994 - - 994 Regulated contracting environment 1,022 - - 1,022 Remuneration of concession assets 122 255 - 377 Transactions in the short-term energy market 89 - - 89 Construction revenue - 455 - 455 Energy trading operations - - 66 66 Service rendered revenue 38 30 - 68 Indemnifications 1 - - 1 Other revenues 14 - - 14 Net operating revenue 2,280 740 66 3,086 Change Free contracting environment 126 - - 126 Regulated contracting environment 65 - - 65 Remuneration of concession assets 42 144 - 186 Transactions in the short-term energy market 182 - - 182 Construction revenue - (216) - (216) Energy trading operations - - 44 44 Service rendered revenue 4 21 - 25 Indemnifications 4 - - 4 Unrealized gains on trading operations - - 5 5 Other revenues 4 - - 4 Net operating revenue 427 (51) 49 425 1 Distribution companies. 2 Free consumers and trading companies. In 2Q26, net operating revenue increased 13.8% (R$ 425 million) when compared with 2Q25, growing from R$ 3,086 million to R$ 3,511 million. This variation largely reflects the following effects: (i) growth of R$ 427 million (18.7%) in net operating revenue from the energy generation and sales portfolio; (ii) the increase of R$ 49 million (74.2%) in the trading segment; and attenuated by (iii) a reduction of R$ 51 million (6.9%) from the transmission business. More details on the trading and transmission segments are described under specific headings.
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Earnings Release 2Q26 19 Comments on Variation in Net Operating Revenue Generation and Sales of Energy from the Portfolio Net Average Selling Price and Sales Volume The net average selling price of energy, net of charges on revenues and trading operations, was R$ 208.28/MWh in 2Q26. This amount was 4.0% lower than 2Q25 when the average price stood at R$ 217.01/MWh. During both 2025 and 2026, conditions were characterized by reimbursements for shortfalls in wind and solar generated energy deliveries below contractual commitments agreed with distributors in the regulated market. Ignoring the impact of the reimbursements in the quarters under review, the net average selling price of energy fell from R$ 225.14/MWh in 2T25 to R$ 214.19/MWh in 2Q26, a reduction of 4.9%. The reduction of the price between the periods under analysis largely reflected (i) the agreements inherited from the Santo Antônio do Jari and Cachoeira Caldeirão hydropower plants following their acquisition; (ii) the expiry of a significant distribution agreement at higher -than-average prices; partially mitigated by (iii) monetary restatement of current long-term agreements. Energy volume sold under agreements, net of trading operations, increased from 9,290 GWh (4,254 average MW) in 2Q25 to 10,597 GWh (4,852 average MW) in 2Q26, growth of 1,307 GWh (598 average MW), or 14.1%, between the periods under review. The increase in energy volume sold during the quarter was largely due to additional sales volume to the distributors, a reflection of the acquisition of the Santo Antônio do Jari and Cachoeira Caldeirão plants. There was also an increase in sales through the intermediary of the free market environment, given the growth in proprietary installed capacity between the periods under review, a reflection of the finalization of the startup process to commercial operations at the Serra do Assuruá Wind Complex in the second half of 2025 as well as the entry into full commercial operations of the Assú Sol Photovoltaic Complex in the first half of 2026. | Net Operating Revenue Change by Segment | R$ million Generation and portfolio sale Trading Transmission | Net Average Selling Price1 | R$/MWh 1 Net of sale taxes and trading operations. 2 Net of trading operations. | Sales Volume2 | avg MW
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Earnings Release 2Q26 20 The variation in sales volumes and average selling prices in combination resulted in an increase of R$ 191 million in the Company’s net operating revenue in the quarter. Energy Transactions Free Contracting Environment : Sales revenue to free customers and trading companies increased R$ 126 million (12.7%) year-on-year from R$ 994 million in 2Q25 to R$ 1,120 million in 2Q26. The variation is the result of the increase of 866 GWh (396 average MW) in energy sales volume (R$ 144 million) and a decrease of 1.9% in the net average selling price (R$ 18 million). The variation in energy sales volume is mainly due to the entry into operations of the Serra do Assuruá Wind Complex and the Assú Sol Photovoltaic Complex, with a consequent increase in available energy in the Company’s portfolio. Conversely, the reduction in the net average selling price is largely a reflection of the sale of long -term agreements during a period of lower prices, in turn due to the hydrological scenario and increased offerings of renewables in the market as a whole ; albeit attenuated by (ii) the monetary restatement of current long-term agreements. Regulated Contracting Environment: Revenues from sales to distributors reached R$ 1,087 million in 2Q26, R$ 65 million (6.4%) higher than the R$ 1,022 million reported in 2Q25. The positive variation was due to a combination of the following effects: (i) R$ 123 million, the result of growth of 441 GWh (202 average MW) in sales volume; and (ii) attenuated in the amount of R$ 58 million by a 5.7% decrease in net average selling price. The year-on-year increase in sales volume is mainly a reflection of energy commercialized by the Santo Antônio do Jari and Cachoeira Caldeirão hydropower plants acquired in 3Q25, and by the seasonal weighting of the sales. The reduction in the net average selling price between compared quarters was largely driven, (i) by the incorporation of the agreements following the acquisition of Santo Antônio do Jari and Cachoeira Caldeirão; but attenuated (ii) by monetary restatement of sales prices over the period between the two compared quarters. Excluding the impact of the reimbursements mentioned above, net average selling prices to the distributors declined 7.3% between the quarters under analysis. Concession Assets Remuneration The financial assets of concessions represent the present value of future cash flows from the portion of energy sold to the Regulated Contracting Environment (ACR) from the Jaguara and Miranda hydropower plants and equivalent to 70% of the physical guarantee of both plants. These assets are remunerated at the annual internal rate of return and restated according to the variation in the Amplified Consumer Price Index (IPCA). Concession asset remuneration increased from R$ 122 million in 2Q25 to R$ 164 million in 2Q26, an increase of R$ 42 million (34.4%) . This variation was largely due to the increase in the IPCA inflation index between the compared periods. Transactions in the Short-term Energy Market In 2Q26, revenue recorded from the short-term market was R$ 271 million when compared with R$ 89 million in 2Q25, a growth of R$ 182 million between quarters in review. Further information regarding these transactions and variation can be found under the heading “Details of short-term operations”.
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Earnings Release 2Q26 21 Opera tional Costs | Costs by segment – 2Q26 x 2Q25 | R$ million Electric Energy Generation Transmission Trading Consolidated 2Q26 Depreciation and amortization 404 4 - 408 Electric power purchases 274 - 109 383 Construction costs - 310 - 310 Transactions in the short-term market 256 - - 256 Charges for the use of power grid and connection 217 - - 217 Materials and third-party services 117 10 - 127 Personnel 82 8 - 90 Insurance 49 - - 49 Royalties 48 - - 48 Other operational costs, net (99) 2 - (97) Operational costs 1,348 334 109 1,791 2Q25 Depreciation and amortization 315 4 - 319 Electric power purchases 205 - 64 269 Construction costs - 462 - 462 Transactions in the short-term market 117 - - 117 Charges for the use of power grid and connection 194 - - 194 Materials and third-party services 133 11 - 144 Personnel 66 5 - 71 Insurance 36 1 - 37 Royalties 17 - - 17 Unrealized losses on trading operations - - 2 2 Other operational costs, net 27 (1) - 26 Operational costs 1,110 482 66 1,658 Change Depreciation and amortization 89 - - 89 Electric power purchases 69 - 45 114 Construction costs - (152) - (152) Transactions in the short-term market 139 - - 139 Charges for the use of power grid and connection 23 - - 23 Materials and third-party services (16) (1) - (17) Personnel 16 3 - 19 Insurance 13 (1) - 12 Royalties 31 - - 31 Unrealized losses on trading operations - - (2) (2) Other operational costs, net (126) 3 - (123) Operational costs 238 (148) 43 133 Operational costs reported an increase of R$ 133 million (8.0%) between the compared quarters, rising from R$ 1,658 million in 2Q25 to R$ 1,791 million in 2Q26. This variation was a reflection by and large of the following: combination of factors: (i) an increase of R$ 238 million (21.4%) in the costs of the energy generation and sales from the portfolio segment; (ii) an increase of R$ 43 million (65.2%) in the costs of energy trading operations; and (iii) a decrease of R$ 148 million (30.7%) in transmission segment costs.
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Earnings Release 2Q26 22 The change in the energy generation and sales from the portfolio segment is essentially due to the movement of the main components as follows: Comments on Variations in Operational Costs Generation and Energy Sales from the Portfolio Segment • Depreciation and amortization: a year-on-year increase of R$ 89 million (28.3%). The variation stems at large from (i) the startup in commercial operations at the Serra do Assuruá Wind and the Assú Sol Photovoltaic complexes, concluded over the course of 2025 and 2026, respectively; and (ii) additional depreciation of the recently acquired assets Santo Antônio do Jari and Cachoeira Caldeirão. • Energy purchases: between 2Q25 and 2Q26, there was an increase of R$ 69 million (33.7%) in energy purchases, substantially driven by the increase of 3.4% in the net average purchasing price of energy (R$ 62 million) and a growth of 50 GWh (23 average MW) in energy volume pu rchased (R$ 7 million). Growth in volumes was due to increased purchases for management of the Company’s portfolio. The variation in average purchasing price reflects the rise in month -end closing prices due to a higher average PLD between the compared quarters, and monetary restatement of long-term agreements. • Transactions in the short -term energy market: cost overheads with these transactions were R$ 139 million (118.8%) greater between the quarters under analysis. Further explanations on these operations and with respect to the variation is to be found under the heading “Details of short-term operations”. • Charges for the use of the electric grid and connections: an increase of R$ 23 million (11.9%) between the quarters analyzed, resulting mainly from (i) the entry into full commercial operations of the Serra do Assuruá Wind Complex and the Assú Sol Photovoltaic Complex; (ii) the acquisition of the Santo Antônio do Jari and Cachoeira Caldeirão subsidiaries; and (iii) the annual adjustment of transmission and distribution tariffs. • Financial compensation for the use of water resources (royalties): a rise of R$ 31 million (182.4%) due to (i) greater generation from the hydropower plants during 2Q26, when compared to 2Q25 ; (ii) the acquisition of the Santo Antônio do Jari and Cachoeira Caldeirão subsidiaries; and (iii) the annual readjustment in royalties. • Other operational costs, net: reduction of R$ 126 million between analyzed quarters, due principally to the booking of R$ 125 million in 2Q26 of PIS and Cofins tax credits used against depreciation charges on fixed assets, rights to which were guaranteed by a final and binding court decision. A total of R$ 218 million was booked, R$ 125 million of principal and R$ 93 million of monetary restatement at the basic Selic interest rate. Other costs related to this segment revealed no significant variations between the quarters under analysis . | Operational Costs Change | R$ million
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Earnings Release 2Q26 23 Operational Result from the Energy Transmission Segment The Company has primary responsibility for the construction and installation of infrastructure pertaining to the Gralha Azul, Novo Estado, Gavião Real, Asa Branca and Graúna transmission systems and is exposed to the risks and benefits of these constructions. Consequently, based on prevailing accounting practices, the Company books revenue over the course of the implementation of the transmission infrastructure for an amount corresponding to the construction costs plus a gross margin on the construction services provided. Expenditures incurred in the construction are recognized in the cost of the transmission infrastructure. The Annual Allowed Revenue (RAP) is received once th e transmission system goes into commercial operations. Thus, only resources generated from operational activities are received from then onwards. The Gralha Azul and Novo Estado transmission systems went into full commercial operations on February 19 and 27, 2023, respectively. On July 8, 2024, the Company finalized the implementation of the Gavião Real Transmissora de Energia project with its complete energization as incorporated in the Delivery and Acceptance Certificate (TLD) issued by the National System Operator (ONS) on July 12, 20 24. On July 18, 2025, the Company took over the operation of the brownfield stretch of the Graúna Transmission System, corresponding to approximately 5% of the project’s total RAP. Additionally, on November 26, 2025, the Company received authorization from the ONS to begin commercial operations on the Morro do Chapéu II – Poções III stretch pertaining to the Asa Branca Transmission System and representing 33% of the project’s RAP. Gross result from the energy transmission segment reported a positive R$ 355 million in 2Q26 , an increase of R$ 97 million (37.6%) in relation to the same quarter of 2025 when the result was R$ 258 million. The variation is largely due to (i) a growth of R$ 144 million (56.5%) in the remuneration of concession assets, in turn and more particularly due to the higher nominal balance and the increase in inflation over the period between comparable quarters; (ii) the increase of R$ 22 million in O&M revenue; partially offset (ii) by the negative effect of R$ 64 million (25.1%) in the variation of the net result of construction revenues and costs (a reduction of R$ 216 million and R$ 152 million, respectively), a reflection by and large of the stage which work has reached on the Asa Branca Transmission System. RAP value, net of PIS and Cofins, received in 2Q26 was R$ 255 million, (R$ 190 million in 2Q25), being R$ 204 million (R$ 160 million in 2Q25) corresponding to the amortization of the contractual asset, booked as a contra entry to the contractual asset itself, and R$ 51 million (R$ 30 million in 2Q25) with respect to O&M se rvices rendered. Below is the composition of the regulatory transmission Ebitda: (in R$ million) 2Q26 2Q25 Change RAP, net of PIS and Cofins 255 190 65 Operational costs (20) (16) (4) Selling, general and administrative expenses (2) (6) 4 Other operational revenues, net 1 1 - Regulatory transmission Ebitda 234 169 65 Asa Branca
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Earnings Release 2Q26 24 Operational Result of the Energy Trading Segment The Company operates in the physical energy trading market to leverage results from energy price variations within pre-set limits of risk. Energy trading operations are transacted in an active market and for accounting purposes are defined as financial instruments according to their fair value. This is principally due to the absence of any commitment to match purchase and sale operations, flexibility being permitted to manage the contracts and obtain results through price variations in the market. The gross result between quarters recorded a positive variation of R$ 6 million, a reflection of the increase of R$ 7 million following the marking -to-market of forward supply transactions between periods – namely the difference between contractual and market prices, however attenuated by the negative impact of R$ 1 million in energy trading operations. Details of Short - Term Operations Short-term operations are classified as energy purchase or sale operations, the principal objective being the management of the Company’s exposure on the CCEE. Consequently, the price of these operations is characterized by the linkage with the Price for Settlement of Differences (PLD). This item also includes the transactions conducted through the CCEE, given their volatile and seasonal nature, therefore, short-term, of the results originating from accounting movement in the CCEE. Additionally, the long and short positions are settled at the PLD, thus, similar to the short-term operations described above. In relation to the transactions conducted through the CCEE, the various monthly credit or debit entries to the account of a Board agent are summarized in a single billing as a receivable or a payable. This therefore requires an entry to either an income or an expense item. In this context, it is worth pointing out that due to adjustments in the Company’s portfolio management strategy, changes have been taking place in the profile of the mentioned billings. Such fluctuations complicate the direct comparison of the elements comprising each billing for the periods being analyzed - the reason for including this specific topic. The strategy allows us to analyze the fluctuations of the principal elements involved in spite of allocation being either to an income or expenses account according to the credit or debit nature of the billing to which they relate. Generically, these elements are revenues or expenses arising, for example, (i) from the application of the Energy Reallocation Mechanism (MRE); (ii) from the Generation Scaling Factor (GSF), triggered when generation of plants, part of the MRE, is smaller or greater (Secondary Energy) than the allocated energy; (iii) from the so-called “submarket risk”; (iv) dispatch driven by the Risk Aversion Curve (CAR); (v) the application of System Service Charges (ESS), resulting in dispatch which diverges from the th ermal plants order of merit; and (vi) naturally, exposure (a short or long position in the monthly accounting) and settled at the PLD. | Net Result of Short-term Operations | R$ million Generation 2Q26 Net operating revenue 271 Operational costs (256) Net result 15 2Q25 Net operating revenue 89 Operational costs (117) Net result (28) Change Net operating revenue 182 Operational costs (139) Net result 43
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Earnings Release 2Q26 25 In 2Q26 and 2Q25, net results (the difference between revenues and costs — less taxes) from short -term transactions — in particular those conducted through the intermediary of the CCEE — were positive at R$ 15 million and negative at R$ 28 million, respectively. The amount represents an increase of R$ 43 million between compared periods, originating from the result of transactions in the energy generation and sales from the portfolio segment. These variations were primarily a consequence of the combination of the following factors: (i) the positive impact of an increase in the MRE (Energy Reallocation Mechanism) Adjustment Factor (GSF) in the light of the allocation of physical guarantee and generation from the participating plants (the average of the GSF increased from 95.5% in 2Q25 to 99.0% in 2Q26); (ii) an increase in free energy due to the strategy of allocating energy on a seasonally weighted basis during the periods; but attenuated (iii) by the effects of the negative variation in month -end closing operations, rebookings and adjustments between the quarters under analysis; and (iv) despite the increase in hydropower generation from the plants participating in the MRE, the Company generated below its seasonally allocated energy volume, this reflecting in a reduced share of the MRE and thus producing a negative effect through increased TEO ( Energy Optimization Tariffs) payments. In December 2025, Aneel established maximum and minimum PLD limits for 202 6 at R$ 785.27/MWh and R$ 57.31/MWh, respectively. The following table shows average PLD values for the submarkets in which the Company operates, in MWh. Average PLD in R$/MWh 2Q26 2Q25 Change South 230.67 224.16 2.9% Southeast/Center-West 206.42 216.49 (4.7%) Northeast 163.46 154.39 5.9% Disposal of subsidi ary The Company recognized R$ 5 million in 2Q25, related to expected proceeds under the agreement for the sale of its subsidiary Pampa Sul, which was completed in 2023. Equity Income – Gas Transport ation The Company holds a 17.5% direct corporate stake in TAG. TAG’s equity income result for the quarters under analysis is composed of the following items: 2Q26 2Q25 Income statement (in R$ million) 100% Company’s share 100% Company’s share Net operational revenue 2,080 364 2,365 414 Costs of services provided (610) (107) (593) (104) Gross income 1,470 257 1,772 310 General and administrative expenses (34) (6) (42) (7) Income before financial result and taxes 1,436 251 1,730 303 Financial result (504) (88) (328) (58) Income before taxes 932 163 1,402 245 Income tax and social contribution (189) (33) (265) (46) TAG’s net income 743 130 1,137 199
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Earnings Release 2Q26 26 Transportadora Associada de Gás - TAG The reconciliation of TAG’s Ebitda is shown in the following table: 2Q26 2Q25 Ebitda (in R$ million) 100% Company’s share 100% Company’s share Income before financial result and taxes 1,436 251 1,730 303 Depreciation and amortization 180 32 187 33 Amortization of mais valia 150 26 150 26 Ebitda¹ 1,766 309 2,067 362 Ebitda Margin 84.9% 87.4% ¹ In accordance with the guidelines established in CVM Resolution No. 156 (RCVM 156) and Circular Letter CVM/SNC/SEP No. 01/2023, of June 23, 2022 and February 13, 2022, respectively. Between 2Q25 and 2Q26, the equity income result fell by R$ 69 million (34.7%) from R$ 199 million to R$ 130 million, respectively, due to lower net income at TAG. In relation to the reduced results at TAG, the variation was in large part the consequence of (i) the decline in revenue from the Malha Nordeste (Northeast Network) due to a pending decision as to maximum permitted revenue (to be recalculated once the rati fication of the tariff review is complete); (ii) a negative effect from the net financial result: (ii.i ) due to the gain from debt renegotiations booked in 2Q25; but mitigated (ii.ii) by the decline in interest on debt; and (iii) reduced Income Tax and Social Contribution, the result of lower pre-tax profits. | Balance Sheet TAG’s principal asset and liability groups as of June 30, 2026 and December 31, 2025 were as follows: Balance Sheet 06/30/2026 12/31/2025 ASSETS Current assets 2,447 2,530 Cash and cash equivalents 973 655 Accounts receivable from clients 1,323 1,706 Other current assets 151 169 Non-current assets 27,779 28,269 Restricted deposits 459 460 Other non-current assets 157 162 Property, plant and equipment 24,409 24,892 Intangible 2,754 2,755 Total 30,226 30,799 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities 2,518 2,888 Debt instruments 1,447 2,004 Derivative financial instruments - hedge 24 73 Other current liabilities 1,047 811 Non-current liabilities 20,454 21,844 Debt instruments 13,423 14,936 Derivative financial instruments - hedge 76 210 Deferred income taxes and social contribution 6,228 5,933 Other non-current liabilities 727 765 Shareholders' equity 7,254 6,067 Total 30,226 30,799
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Earnings Release 2Q26 27 Ebitda and Ebitda Margin | Ebitda by segment – 2Q26 x 2Q25 | R$ million Electric Energy Generation Transmission Trading Gas Transportation Consolidated 2Q26 Income (loss) before financial results and taxes 1,225 405 - 130 1,760 Depreciation and amortization 415 4 - - 419 Ebitda1 1,640 409 - 130 2,179 Adjusted Ebitda 1,640 409 - 130 2,179 Adjusted Ebitda margin 60.6% 59.4% - - 62.1% 2Q25 Income (loss) before financial results and taxes 1,052 292 (2) 199 1,541 Depreciation and amortization 326 4 - - 330 Ebitda 1,378 296 (2) 199 1,871 Disposal of subsidiary (5) - - - (5) Adjusted Ebitda 1,373 296 (2) 199 1,866 Adjusted Ebitda margin 60.2% 40.0% 3.0% - 60.5% Change Income (loss) before financial results and taxes 173 113 2 (69) 219 Depreciation and amortization 89 - - - 89 Ebitda 262 113 2 (69) 308 Disposal of subsidiary 5 - - - 5 Adjusted Ebitda 267 113 2 (69) 313 Adjusted Ebitda margin 0.4 p.p. 19.4 p.p. (3.0 p.p.) - 1.6 p.p. ¹ In accordance with the guidelines established in CVM Resolution No. 156 (RCVM 156) and Circular Letter CVM/SNC/SEP No. 01/2 023, of June 23, 2022 and February 13, 2022, respectively. Between 2Q26 and 2Q25, adjusted E bitda increased R$ 313 million (16.8%) from R$ 1,866 million in 2Q25 to R$ 2,179 million in 2Q26 . The variation was the result of the positive effects of (i) R$ 267 million (19.4%) in the energy generation and sales from the Company’s portfolio segment; (ii) an increase of R$ 113 million (38.2%) from the results of the energy transmission segment; and (iii) a R$ 2 million positive variation in the trading segment. These effects were offset by the negative effect of R$ 69 million (34.7%) from the lower result from the stake in a jointly held subsidiary – TAG. Key variations in adjusted Ebitda were in the energy generation and sale segment as indicated in item (i) above, positive effects of which were: (i) R$ 191 million from the combination of the variations in the volume of energy sold and the net average selling price; (ii) R $ 125 million of PIS and Cofins tax credits used against depreciation charges on fixed assets; (iii) R$ 43 million derived from the positive impact of transactions executed in the short -term market; and (iv) an increase of R$ 42 million in the remuneration of financial concession assets. These affects were attenuated by the following variations wit h negative effects : (v) an increase of R$ 69 million in energy purchases; (vi) an increase of R$ 31 million in royalty payments; (vii) an increase of R$ 23 million in charges for the use of the electricity energy network and connection; (viii) the negative impact of R$ 10 million one off revenues recorded in the preceding year, namely R$ 5 million with respect to the Ibitiúva Bioenergétiva shareholder agreement and | Adjusted1 Ebitda | R$ million 1 Adjusted Ebitda: net income + income tax and social contribution + financial results + depreciation and amortization + impairment + non recurrent effects.
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Earnings Release 2Q26 28 R$ 5 million in receivables with respect to the divestment agreement of the Pampa Sul subsidiary; and (ix) R$ 1 million relative to other operational costs and administrative expenses. Additionally, in 2Q26, adjusted Ebitda was favorably impacted by the transmission segment, the effects of which were a combination of the following factors: (i) a growth of R$ 144 million accruing from the increase in the remuneration of concession assets; (ii) an increase of R$ 17 million in the O&M margin (O&M RAP, net of costs); (iii) an increase of R$ 12 million with the registration of the expected revision of the investment structure undertaken and the capital remuneration rate; (iv) a decrease of R$ 4 million in sales, general and administrative expenses as well as other operational revenues and expenses; and attenuated by (v) a reduction of R$ 64 million in the variation of the net financial result of construction revenues and costs. To enable the reconciliation of net income with Ebitda as well as the impacts of regulatory adjustments in transmission quota holders, we present the following table: (in R$ million) 2Q26 2Q25 Chg. (%) 6M26 6M25 Var. (%) Recurrent net income 1,962 567 246.0 2,754 1,394 97.6 Non-recurring effect, net of income tax and social contribution: (-) Financial gain from the UBP renegotiation (1,268) - 100.0 (1,268) - 100.0 (+) Disposal of subsidiary - (3) (100.0) (3) (7) (57.1) Adjusted net income 694 564 23.0 1,483 1,387 6.9 (+) Adjusted income tax and social contribution 191 166 15.1 436 436 - (+) Adjusted net financial result 875 806 8.6 1,702 1,430 19.1 (+) Depreciation and amortization 419 330 27.0 802 653 22.8 Adjusted Ebitda 2,179 1,866 16.8 4,423 3,906 13.2 Statutory transmission Ebitda (IFRS) (409) (296) 38.2 (731) (644) 13.5 Regulatory transmission Ebitda (RAP) 234 169 38.5 434 340 27.6 Statutory quota holders Ebitda (IFRS) (246) (190) 29.5 (470) (420) 11.9 Regulatory quota holders Ebitda 181 166 9.0 371 341 8.8 Ebitda adjusted by transmission and quota effects 1,939 1,715 13.1 4,027 3,523 14.3 * IFRS: International Financial Reporting Standards. 1 Considering the result from generation and trading segments. | Ebitda Change | R$ million Generation and trading1 Equity Income (TAG) Transmission
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Earnings Release 2Q26 29 Financ ial Result (in R$ million) 2Q26 2Q25 Chg. (R$) 6M26 6M25 Var. (R$) Financial gain from the UBP1 renegotiation 1,921 - 1,921 1,921 - 1,921 Income from financial investments 205 182 23 352 297 55 Other financial income 114 31 83 152 59 93 Total financial income 2,240 213 2,027 2,425 356 2,069 Debt: Interest (587) (383) (204) (1,135) (671) (464) Monetary restatement (460) (284) (176) (726) (575) (151) Other financial expenses, net (60) (214) 154 (101) (190) 89 Total financial expenses (1,107) (881) (226) (1,962) (1,436) (526) Concessions payable (Use of Public Asset): Monetary restatement (170) (16) (154) (211) (107) (104) Present value restatement 83 (122) 205 (33) (243) 210 Total concession payable expenses (Use of Public Asset) (87) (138) 51 (244) (350) 106 Financial result 1,046 (806) 1,852 219 (1,430) 1,649 Non-recurring effect Financial gain from the UBP renegotiation (1,921) - (1,921) (1,921) - (1,921) Adjusted financial result (875) (806) (69) (1,702) (1,430) (272) 1Net of PIS and Cofins Financial income: in 2Q26, financial income reached R$ 2,240 million, R$ 2,027 million or 951.6% more than the R$ 213 million posted for this item in 2Q25, largely the result of the booking of the non -recurring effect from the financial gain under the Use of Public Assets - Concession Payable (UBP) renegotiations worth R$ 1,9 21 million and the increase of R$ 23 million in income from financial investments. Growth was mainly driven by the increase in the average balances of financial investments in the periods under review and by the growth in CDI. The variation in other financial income stemmed largely from the booking of monetary restatement of tax credits recoverable, the result of legal rulings. Financial expenses: financial expenses in 2Q26 were R$ 1,107 million, R$ 226 million or 25.7% above the same item in 2Q25 at R$ 881 million. The main changes were the result of an increase of R$ 380 million in debt between the quarters analyzed, the result of (i) a R$ 204 mil lion increase of interest on debt following the Company’s 15th and 16th debenture issues in July 2025 and February 2026 respectively; and (ii) an increase of R$ 176 million relative to monetary restatement due to the increase in IPCA between periods. In addition to the increased interest on debt reported, worthy of note with respect to financial expenses was a reduction of R$ 134 million in the capitalization of fixed assets when compared to 2Q25, reflecting the startup in operations of the Serra do As suruá Wind and the Assú Sol Photovoltaic complexes, there being no capitalization of interest in 2Q26. Concession expenses payable (Use of Public Assets): concession expenses payable fell by R$ 51 million (37.0%), posting R$ 87 million in 2Q26 as opposed to R$ 138 million in 2Q25 by virtue, mainly, (i) of the reduction of R$ 205 million of the calculation of present value of the UBP in the light of the reneg otiation of the outstanding balance; mitigated by the (ii) increase of R$ 154 million of monetary restatement due substantially to the increase in IPCA and IGPM.
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Earnings Release 2Q26 30 Income Tax and Social Contribution Value of IR (Income Tax) and CSLL (Social Contribution) in 2Q26 was R$ 844 million, a negative variation of R$ 676 million (15.1%) when compared to the same quarter of 2025 at R$ 16 8 million. The variation was largely driven by the non-recurring effect of the booking of the financial gain from the renegotiation of the UBP totaling R$ 1,921 million and the increase in the pre -tax net adjusted profit. Excluding non -recurring effects due to the booking of the financial gain following the renegotiation of the UBP and the disposal of a subsidiary, expenses with IR and CSLL increased year-on-year by R$ 25 million (15.1%). Net Income Adjusted Net Income for 2Q26 was R$ 694 million, R$ 130 million or 23.0% above the R$ 564 million recorded in the same quarter in the previous year. The variation is a consequence of the following factors: (i) an increase of: R$ 313 million in the adjusted Ebitda; attenuated by the (ii) negative effect of R$ 69 million of the net adjusted financial result; (iii) the increase of R$ 89 million in depreciation and amortization; and (iv) the increase of R$ 25 million in income tax and social contribution. Taking into account the non-recurring effects of the renegotiation of UBP, net profit increased R$ 1,395 million compared to the R$ 567 million for 2Q25. Debt As of June 30, 2026, total consolidated gross debt , representing principally loans, financing, debentures and preferred shares redeemable, net of hedging operations, totaled R$ 32,152 million — increase of 0.8% (R$ 241 million) compared to the position as of March 31, 2026. The average debt maturity at the end of 2Q26 was 7.1 years. The variation in Company’s debt is mainly related to the combination of the following factors during the 2Q26: (i) R$ 110 million of drawdowns in loans and financing; (ii) generation of R$ 1,044 million in charges incurred to be paid and monetary restatement; and ( iii) R$ 913 million in amortization of loans, financing , debentures and preferred shares. | Net Income Change | R$ million
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Earnings Release 2Q26 31 The average weighted nominal cost of debt at the end of 2Q26 was 11.3% — equivalent to IPCA + 6.4% — 0.5 p.p. lower than recorded at the end of the 2Q25 (11.8% — equivalent to IPCA + 6.1%). On June 30, 2026, the Company’s net debt (total debt less result of derivatives operations, deposits earmarked to the guarantee of debt servicing and cash and cash equivalents) was R$ 25,210 million, an increase of 0.9% compared to the end of 1Q26. | Net Debt (in R$ million) 06/30/2026 03/31/2026 Chg. % Gross debt 31,777 31,690 0.3 Result of hedge operations 374 221 69.2 Deposits earmarked for the payment of debt (492) (461) 6.7 Cash and cash equivalents (6,449) (6,465) (0.3) Total net debt 25,210 24,984 0.9 Net debt/Adjusted Ebitda last 12 months 3.1X 3.2X | Debt Breakdown IPCA........ 53. 9 % CDI .......... 39.9 % TJLP..........6.2% | Total Debt Change | R$ million | Maturity Term Loans | R$ million
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Earnings Release 2Q26 32 Capital Expenditures Total investments at ENGIE Brasil Energia in 2Q26 reached R$ 329 million, of which: (i) R$ 261 million were invested in the construction of new projects, including: R$ 111 million in the Asa Branca Transmission System, R$ 104 million in the Graúna Transmission System, R$ 24 million in the implementation of the Serra do Assuruá Wind Complex, R$ 13 million in the Assú Sol Photovoltaic Complex, R$ 6 million related to the execution of reinforcement works at the Ponta Grossa Substation, part of the Gralha Azul Transmission System, and R$ 3 million in the expansion of the Paracatu IV Photovoltaic Plant; (ii) R$ 54 million were allocated to the maintenance and revitalization of the generating complex, mainly in hydroelectric and solar plants; and (iii) R$ 14 million were invested in modernization projects: R$ 12 million in the Jaguara Hydroelectric Plant, R$ 3 million in the Ponte de Pedra Hydroelectric Plant and -R$ 1 million in the Salto Osório Hydroelectric Plant. Credit of Interim Dividends At its meeting held on August 5, 2026, ENGIE Brasil Energia’s Board of Directors approved the credit of interim dividends based on the financial statements raised on June 30, 2026, in the amount of R$ 770.8 million (R$ 0.54420747574 per share), representing a payout of 55% of the distributable net income, excluding the financial gain from the renegotiation of the UBP. The Company's shares will be traded ex-interim dividends as of August 21, 2026 . Payout to shareholders will take place on a date to be established by the Management Board in due course and will be announced through a Notice to Shareholders. Modernization of Jaguara HPP ENGIE Brasil Energia’s Investments in 2Q26 reached R$ 329 million. | 2Q26 Capital Expenditure | R$ million
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Earnings Release 2Q26 33 Commitment to Sustainable Development Sustainable Management ENGIE’s ambition is to spearhead the carbon-neutral transition process worldwide, supporting our clients in their journey of reducing emissions and associated to differentiated socio-environmental offers, thereby encouraging sustainable development with po sitive impacts both locally and globally. Through our medium term Strategic Sustainability Goals, we endeavor to address the trinomial of “People, Planet and Performance”. All plants under the Company’s responsibility adhere to Sustainable Management Policy, which covers the areas of Governance, Quality, Environment, Climate Change, Occupational Health and Safety, Social Responsibility and Engagement of Related Parties. On June 30, 2026, out of the 145 plants installed in 14 states of Brazil’s five regions, 11 are certified in accordance with NBR ISO 9001 (for Quality), NBR ISO 14001 (for the Environment) and NBR ISO 45001 (for Occupational Health and Safety) standards, with an aggregate capacity of 62.7% of the total operated by the Company. Jo urney for Climate The ENGIE Group has a global commitment to i) reduce CO 2 emissions by 59% between 2017 and 2030, which is a Science Based Target; and ii) attain emissions neutrality by 2045. In line with these commitments, ENGIE Brasil Energia has enshrined a specific program to contribute to the corresponding objectives. Called “Jornada pelo Clima” (Journey for Climate), it is based on scientific targets in pursuit of the de -carbonization of all the Company’s activities, which also includes the value chain. Based on three pillars – Management, Mitigation and Adaptation –, it lies at the root of the Company’s goals and commitments in Brazil, particular emphasis due on: • Reducing emissions intensity (Scopes 1, 2 and 3) by 30% by 2025, and 56% by 2030; • Expanding renewable energy capacity; • Having 100% of assets covered by climate adaptation plans by 2030; • Engaging 100% of the top Scope 3 -offending suppliers to set science-based targets by 2030. Highlights of the Quarter • At a time when the planet needs action and not intentions alone, ENGIE Brasil Energia takes one more concrete step in its journey of transformation, announcing Tamara Klink as its new ESG ambassador. With the slogan “ENGIE and Tamara Klink: the same energy”, the initiative connects two trajectories guided by a pioneering spirit, courage, innovation and positive impact, values which characterize both the story of the solo navigator and that of ENGIE. • Pursuant to CITSB Resolution 13 of June 2, 2026, ENGIE Brasil Energia joined the Brazilian Sustainability Taxonomy (TSB) testing group – the only company in the electric energy sector. TSB is an official classification system for economic activities, assets and projects which contribute to the environmental and climate goals. Created by the Finance Ministry, it serves as a standardized catalog for attracting green investments and combating greenwashing in the market. • On its 1st Supplier Day in Florianópolis, the Company held an onsite meeting dedicated to the strengthening of relationships with its leading suppliers. The event brought together strategic partners at a moment of change, cultural alignment and connection with the Company’s values and guidelines such as safety, ethics and the environment, with an emphasis placed on the theme of decarbonization. The program concluded with an award ceremony to suppliers, recognizing performances and partnerships.
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Earnings Release 2Q26 34 • The Company also ran its annual “Sustainable Management Meeting”, bringing together onsite in Florianópolis, managers of assets throughout Brazil and on a virtual basis, open to all employees. The event featured discussions and presentations on the operation of assets, innovation, and transparency, the sharing of knowl edge and experience and promotion of a culture of sustainability and continuous improvement. • ENGIE Brasil Energia is one of three leading companies in the “Energetic Transition” category in the “Best of ESG 2026”, published by EXAME magazine, in partnership with IBMEC. The recognition highlights the Company’s consistent performance with respect to the environmental, social and governance agendas. With its inception more than two decades ago, the ranking is a benchmark for corporate sustainability in Brazil and ENGIE is already building a solid trajectory, the Company also featuring largely in the 2024 edition, when it led the category. • ENGIE Brasil was a major player in the Energy Summit Awards held in Rio de Janeiro in partnership with MIT. The Company was the recipient of four accolades: gold in Deals (Business), silver in Investor and Impact Corporation, and bronze in Corporate Research. • The Company launched its 6th Call for Proposals in Education, an initiative which supports educational projects nationwide. This year, awards will be handed out for at least 50 initiatives, each to receive an incentive of R$ 10 thousand, in turn, a total investment of R$ 500 thousand for upgrading basic education. Created in 2021, the Call is designed to incentivize projects for Elementary and High School students in both private and state schools with the priority for themes such as those of mental health, emotional intelligence, environmental education, anti-sexist education and remedial instruction in Portuguese and mathematics. • Gentio do Ouro (BA), in the area surrounding the recently commissioned Serra do Assuruá Wind Complex, 26 young people concluded the technical course in Electrical Engineering offered by SENAI (National Service for Industrial Training), a joint initiative of ENGIE Brasil Energia and Vestas Brasil. With classroom hours totaling 1,200 hours over two years, training was given to participants for involvement in project activities, installation and maintenance of electrical systems, with a focus on energy automation and efficiency for wind farms. The group included 12 women among those graduating, expanding the participation in an area traditionally the domain of men. The program seeks to contribute to local socio-economic development through professional qualification, preparing manpower to meet the demands of the electric sector and the renewable energy market. The Sustainable Management Meeting, held in Florianópolis, featured the participation of Professor Aron Belinky (ABC Associados).
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Earnings Release 2Q26 35 Sustainability Indices Since 2012, it has been a practice of the Company to publish the principal sustainability indicators for each period in its quarterly and annual results presentations. The following table shows the indicators for 2Q26 and 2Q25. | Sustainability Indices Capital Markets ENGIE Brasil Energia is part of more than ten indexes in the Brazilian market. Since its listing on B3’s Novo Mercado has become a component of the Special Corporate Governance Stock Index (IGC) and the Special Tag Along Stock Index (ITAG), incorporating those companies offering greater protection to minority shareholders in the event of the sale of a controlling stake. The Company’s shares are also included in the Corporate Sustainability Stock Index (ISE), comprising companies with a recognized commitment to social and corporate responsibility, as well as the Electric Energy Stock Index (IEE), which is a sector index made up of the more significant listed companies in the industry. The Company’ shares are also traded on B3’s leading stock index – the Ibovespa – and are traded under the EGIE3 ticker. On the United States Over-The-Counter (OTC) market, the Company’s Level 1 American Depositary Receipts (ADR) are traded under the EGIEY Code, one ADR being equivalent to one common share. On December 12, 2025, ENGIE Brasil Energia’s Board of Directors authorized the adoption of the necessary steps for the analysis and viability studies as an opening phase of discussions leading to the eventual transfer of ENGIE Brasil Participações’ stake of 40% in Jirau Energia to the Company. The Special Independent Committee for Transactions with Related Parties has since been installed to advise on the analysis and to issue recommendations on possible structures for implementing the operation. 1 The Connection Program encompasses visits to the Company's operations across the country, dialogues with the community and environmental education. 2 Investments in 2026 are now disclosed based on realized value, as opposed to the previously adopted provisioned amount. Theme Unit of measurement Performance 2Q26 Performance 2Q25 Change Performance 6M26 Performance 6M25 Change Emissions intensity by energy generation (Scope 1, 2 and 3) tonCO2e/MWh 0.0022 0.0027 -17.6% 0.0015 0.0022 -33.5% Emissions intensity by revenue tCO2e/million R$ 6.0 7.5 -20.0% 4.7 7.3 -35.6% Total emissions (Scope 1, 2 and 3) Tons 20,913.3 23,231.5 -10.0% 32,506.7 44,596.8 -27.1% Water consumption intensity m3/MWh 0.030 0.058 -47.9% 0.019 0.034 -43.0% Engaged people - "Conexão" Community Relationship Program 1 People 25,171 29,622 -15.0% 42,846 43,311 -1.1% Frequency rate - Direct employees + service providers nº accid/million hours 0.976 0.212 0.76 p.p. 1.041 0.324 0.72 p.p. Frequency rate - Direct employees nº accid/million hours 0.000 0.000 0.00 p.p. 0.787 0.000 0.79 p.p. Frequency rate - Service providers nº accid/million hours 1.412 0.243 1.17 p.p. 1.167 0.369 0.80 p.p. % of employees formally trained % 70.6% 19.2% 51.4 p.p. 85.4% 99.4% -14.0 p.p. Turnover rate % 2.0% 2.1% -0.2 p.p. 4.4% 3.2% 1.2 p.p. Voluntary turnover rate % 0.9% 1.3% -0.4 p.p. 2.0% 1.7% 0.3 p.p. Investments in Social Responsibility - Incentivized Resources R$ 713,000 3,976,751 -82.1% 3,063,290 5,000,751 -38.7% Investments in Social Responsibility - Own Resources R$ 878,694 1,183,310 -25.7% 2,152,798 2,687,139 -19.9% Investment in Innovation2 R$ 14,601,018 16,106,338 -9.3% 27,875,979 29,790,316 -6.4% Headcount Employees 1,366 1,215 12.4% 1,366 1,215 12.4% % of employees in certified operations (ISO 9.001, 14.001, 45.001) % 78.8% 84.4% -5.7 p.p. 78.8% 84.4% -5.7 p.p. % of women in the Company % 31.8% 32.0% -0.2 p.p. 31.8% 32.0% -0.2 p.p. % of men in the Company % 68.2% 68.0% 0.2 p.p. 68.2% 68.0% 0.2 p.p. % of women in leadership positions % 31.6% 30.6% 1.0 p.p. 31.6% 30.6% 1.0 p.p. % of men in leadership positions % 68.4% 69.4% -1.0 p.p. 68.4% 69.4% -1.0 p.p. % employees with disabilities % 4.3% 5.1% -0.8 p.p. 4.3% 5.1% -0.8 p.p. G Aspect E S
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Earnings Release 2Q26 36 On June 10, 2026, the Company’s Board of Directors approved the holding of a Primary Public Offering of common shares, convening an Extraordinary General Meeting for July 2, 2026, in which minority shareholders approved the Valuation Report and the proposed value of the shares, the issuance of Jirau Energia, held by ENGIE Brasil Participações, and set at R$ 5.74 billion. In addition to the transfer of the 40% stake in Jirau Energia , the transaction aimed to strengthen and optimiz e the Company’s capital structure. The result of the public offering was the issuance of 274,082,684 common shares, all registered, book entry with no par value. The price per share was set at R$ 30.50 through the bookbuilding procedure with professional investors, the offering mobilizing R$ 8.36 billion , considering the issuance of the additional shares, of which R$ 2.62 billion raised through the market and R$ 5.74 billion corresponding to the contribution of the stake in Jirau. The Company assured Priority Rights to all existing shareholders, allowing them to participate in the offering proportionally to their shareholding stake. Shareholders holding shares on July 2, 2026, were able to exercise their preemptive rights between July 06 and 10, 2026, through t he intermediary of a qualified custody agent. Those shares not subscribed by shareholders in the Priority Offering were allocated to professional investors. Settlement of the offering took place on July 17, 2026, together with the transfer of the stake in Jirau Energia to ENGIE Brasil Energia. Net resources raised by the Offering were allocated in full to the Company’s capital stock. In the light of the increase in capital stock in the context of the Offering, the Company’s capital now stand at R$ 15.22 billion, divided into 1,416,381,520 common shares, all registered, book entry, with no par value, free and clear of any liens or encumbrances. Share Performance – EGIE3 In the second quarter 2026, the Brazilian financial market reported a more lack luster performance in relation to the strong surge in valuations early on in the year. The Ibovespa, the leading stock index on B3, broke historic records in April, driven by the entry of foreign capital, appreciating the Real and as a result of increased interest in emerging markets. However, over the course of May and June, the local market lost steam due to the migration of resources to technology shares in developed markets, particularly the United States. As a result, the Ibovespa closed the month of June at 172 thousand points and a decline of 8.2% in the quarter, also being squeezed by fiscal concerns, uncertainty over the direction of public debt and a weaker performance by the corporate segment where there is greater weighting. Despite the correction during the quarter, the Ibovespa posted a gain of about 6.8% for the accumulated January to June period. The leading world stock markets reported strong performance led by the ones of the United States, driven by the performance of technology and artificial intelligence stocks. European markets also performed well supported by an improvement in the economic environment while Japan reached new heights with the support of the technolog y and semiconductor sectors. In spite of geopolitical tensions and uncertainties surrounding inflation and interest rates, investor appetite for risk assets remained strong throughout the period . In the 2Q26, ENGIE Brasil Energia’s shares appreciated by 7.6%, increasing the year-to-date gain to 12.6% . During the same period, the Electricity Energy Index (IEEX) declined 3.5%, although it still posted a 4.1% increase in 6M26. The Ibovespa, in turn, fell 8.2% during the quarter while maintaining a 6.8% gain year -to-date, ending June 2026 at 172,024 points. EGIE3 recorded an average daily trading volume of R$ 83.4 million in the 2Q26, representing an increase of 31.3% compared to R$ 63.5 million in the 2Q25. On the last trading day in June 2026, the closing price of the Company’s shares was R$ 34.83/share, translating into a market capitalization of R$ 39.8 billion.
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Earnings Release 2Q26 37 | EGIE3 vs. Ibovespa vs. IEEX (Base 100 – 12/31/2025) EGIE3 = 112.6 IBOV = 106.8 IEEX = 104.1 95 100 105 110 115 120 125 Dec-25 Jan-26 Feb-26 Mar-26 Apr-26 May-26 Jun-26 EGIE3 IBOV IEEX
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Earnings Release 2Q26 38 A TTACHMENT 1 ENGIE BRASIL ENERGIA S.A. CONSOLIDATED BALANCE SHEET – ASSETS (In thousands of R$) 06/30/2026 12/31/2025 Current Assets 9,857,758 6,911,102 Cash and cash equivalents 6,448,868 3,358,552 Accounts receivables from clients 1,309,777 1,322,661 Credit of income tax and social contribution 409,812 517,755 Dividends receivable 12 12 Derivative financial instruments - trading 81,814 87,914 Restricted deposits 36,769 46,723 Concession financial assets 429,415 414,211 Contractual assets 787,180 783,178 Other current assets 349,534 375,519 Non current asset held for sale 4,577 4,577 Non Current Assets 49,148,133 48,401,807 Long Term Assets 14,334,356 13,309,044 Derivative financial instruments - hedge 15,868 44,323 Derivative financial instruments - trading 62,274 28,497 Restricted deposits 507,239 486,458 Deposits in court 98,542 92,677 Risk premium to appropriate - Hydrological risk renegotiation 30,005 36,899 Concession financial assets 3,245,878 3,160,294 Contractual assets 9,411,131 8,710,991 Other non current assets 963,419 748,905 Investments 1,362,912 1,155,320 Property, Plant and Equipment 27,719,058 28,182,030 Intangible 5,231,730 5,369,554 Right of use of leases 500,077 385,859 Total 59,005,891 55,312,909
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Earnings Release 2Q26 39 A TTACHMENT 2 ENGIE BRASIL ENERGIA S.A. CONSOLIDATED BALANCE SHEET – LIABILITIES (In thousands of R$) 06/30/2026 12/31/2025 Current Liabilities 9,039,518 6,158,138 Suppliers 995,137 916,391 Dividends and interest on shareholder´s equity 8,474 121,521 Loans and financing 1,456,668 1,419,136 Debentures 2,130,807 1,522,823 Redeemable preferred shares 21,621 22,873 Lease liabilities 67,777 49,492 Concessions payable (Use of Public Asset) 2,333,615 835,932 Tax and social contribution obligations payable 673,246 204,438 Other fiscal and regulatory obligations 224,963 165,011 Labor obligations 131,900 161,375 Derivative financial instruments - trading 77,577 87,336 Provision 5,839 5,838 Obligations related to retirement benefits 41,128 39,746 Other current liabilities 870,766 606,226 Non Current Liabilities 33,872,056 35,240,278 Loans and financing 14,157,674 13,753,916 Debentures 13,543,299 11,963,481 Redeemable preferred shares 467,246 466,375 Lease liabilities 486,194 380,960 Concessions payable (Use of Public Asset) 654,626 4,356,835 Derivative financial instruments - trading 56,960 26,674 Provision 808,534 702,793 Obligations related to retirement benefits 204,197 215,828 Deferred income taxes and social contribution 2,945,213 2,762,822 Other non current liabilities 548,113 610,594 Shareholders' Equity 16,094,317 13,914,493 Share capital 6,863,707 6,863,707 Capital reserve (156,743) (176,543) Net income reserves 5,689,792 5,682,218 Additional dividends - 525,890 Adjustment on fixed asset (53,597) (137,544) Retained earnings 2,669,651 - Non controlling interests 1,081,507 1,156,765 Total 59,005,891 55,312,909
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Earnings Release 2Q26 40 ATTACHMENT 3 ENGIE BRASIL ENERGIA S.A. CONSOLIDATED INCOME STATEMENTS (In thousands of R$) 2Q26 2Q25 Chg. % 6M26 6M25 Chg. % Net Operational Revenue 3,511,433 3,086,121 13.8 6,920,090 6,099,190 13.5 Operational Costs (1,791,352) (1,657,946) 8.0 (3,366,505) (3,030,267) 11.1 Electric power purchases (383,072) (272,212) 40.7 (731,328) (457,070) 60.0 Transactions in the short term energy market (255,812) (116,547) 119.5 (363,148) (165,961) 118.8 Charges for the use of and connection to the electricity grid (217,082) (193,476) 12.2 (433,584) (383,763) 13.0 Financial compensation for use of hydro resources (royalties) (48,328) (17,137) 182.0 (106,218) (69,913) 51.9 Personnel (90,041) (70,701) 27.4 (173,035) (134,075) 29.1 Materials and third-party services (126,769) (144,058) -12.0 (258,788) (262,761) -1.5 Depreciation and amortization (407,914) (319,019) 27.9 (782,487) (630,670) 24.1 Insurance (49,481) (36,965) 33.9 (99,162) (71,334) 39.0 Constitution of operating provisions, net (142) (1,672) -91.5 (14,604) (3,405) 328.9 Cost of implementing transmission infrastructure (309,759) (461,941) -32.9 (503,619) (787,359) -36.0 Others 97,048 (24,218) -500.7 99,468 (63,956) -255.5 Gross Income 1,720,081 1,428,175 20.4 3,553,585 3,068,923 15.8 Operating Income (Expenses) (89,265) (86,738) 2.9 (190,740) (171,989) 10.9 Selling, general and administrative expenses (140,118) (139,514) 0.4 (243,990) (239,210) 2.0 Disposal of subsidiary and equity interest in a jointly controlled company - 5,256 -100.0 3,919 9,569 -59.0 Other operating revenues (expenses), net 50,853 47,520 7.0 49,331 57,652 -14.4 Result of corporate participations 130,018 199,032 -34.7 263,436 365,811 -28.0 Equity income 130,018 199,032 -34.7 263,436 365,811 -28.0 Income Before Financial Result and Taxes 1,760,834 1,540,469 14.3 3,626,281 3,262,745 11.1 Net Financial Result 1,045,696 (806,475) -229.7 218,432 (1,429,870) -115.3 Financial income 2,240,000 212,703 953.1 2,425,216 355,987 581.3 Financial expenses (1,107,116) (881,072) 25.7 (1,962,296) (1,435,012) 36.7 Concession payable expenses (Use of Public Asset) (87,188) (138,106) -36.9 (244,488) (350,845) -30.3 Income Before Taxes 2,806,530 733,994 282.4 3,844,713 1,832,875 109.8 Income tax (614,313) (115,612) 431.4 (787,909) (311,510) 152.9 Social contribution (230,310) (50,926) 352.2 (302,839) (127,560) 137.4 Net Income for the Period 1,961,907 567,456 245.7 2,753,965 1,393,805 97.6 Income allocated to: ENGIE Brasil Energia's shareholders 1,910,006 516,281 270.0 2,661,488 1,284,984 107.1 Non-controlling shareholder of Ibitiúva Bioenergética, Maracanã and Lar do Sol 51,901 51,175 1.4 92,477 108,821 -15.0 Number of Ordinary Shares 1,142,298,836 1,142,298,836 1,142,298,836 1,142,298,836 Net Income per Share 1.6721 0.4520 270.0 2.3299 1.1249 107.1
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Earnings Release 2Q26 41 ATTACHMENT 4 ENGIE BRASIL ENERGIA S.A. CONSOLIDATED STATEMENT OF CASH FLOW (In thousands of R$) 6M26 6M25 Cash Flow from Operating Activities Income before taxes on income 3,844,713 1,832,875 Reconciliation of net income with operating cash flow: Equity loss (263,436) (365,811) Depreciation and amortization 802,284 652,294 Interests and monetary variation 1,866,154 1,256,330 Monetary restatement of recoverable tax credits (92,563) - Concessions payable expenses 244,488 350,845 Subsidiary sale - (9,569) Fair value adjustment of debt instruments 96 104,736 Extension of the concession (2,010,973) - Remuneration of financial concession asset (297,774) (271,201) Contract asset remuneration (711,206) (564,293) Unrealized losses on trading operations, net (445,586) (810,477) Transmission infrastructure construction revenue 95,284 44,554 Result in the disposal of investments (7,150) 2,709 Others (35,398) 18,087 Adjusted Net Income 2,988,933 2,241,079 (Increase) reduction in assets Accounts receivables from clients 14,414 134,632 Tax credits recoverable 115,298 (17,313) Deposits in court and restricted deposits 21,804 (15,663) Financial concession asset 196,986 186,636 Contract assets 408,097 320,509 Other assets (108,269) 92,503 (Reduction) increase in liabilities Suppliers 6,851 (94,654) Fiscal and regulatory obligations 55,642 (38,352) Labor obligations (29,477) (27,571) Obligations related to retirement benefits (24,379) (23,403) Other liabilities 70,947 888 Cash Generated from Operating Activities 3,716,847 2,759,291 Payment of interests on debt, net of hedge (855,036) (705,462) Payment of income tax and social contribution (333,756) (423,641) Cash from Operating Activities 2,528,055 1,630,188 Investments Activities (369,569) (964,590) Dividends and interest on equity received, net of income tax 155,750 360,687 Acquisitions of subsidiaries - 16,320 Used in fixed assets and intangibles (88,866) (1,167,741) Capital reduction in subsidiaries - 234,313 Payment of liabilities linked to acquisition of assets (1,810) (489) Receipt for sale of subsidiary, net of selling costs - 4,313 Payments of concessions payable (Use of Public Asset) (438,041) (416,848) Others 3,398 4,855 Financing Activities 931,830 1,036,057 Inflow of debt instruments 2,396,705 2,765,119 Payment of debt instruments, net of hedge (602,362) (468,489) Payment of dividends and interest on equity, gross of income tax (858,444) (1,203,092) Debt servicing deposits (4,932) (57,481) Capital contribution from minority shareholders, net of issuance costs 863 - Increase in Cash and Cash Equivalents 3,090,316 1,701,655 Reconciliation of Cash and Cash Equivalents Opening balance 3,358,552 3,958,758 Closing balance 6,448,868 5,660,413 Increase in Cash and Cash Equivalents 3,090,316 1,701,655 Transactions that do Not Affect Cash and Cash Equivalents Dividends intended by subsidiaries and joint venture 155,750 360,687 Interim, intermediate, additional credited, mandatory dividends, and interest on equity 694,488 365,071 Prescribed dividends and interest on equity - 4,290 ICMS on energy sales (97) 2,319 Credit of income tax and social contribution (61,229) 12,577 Supplier's of fixed assets and intangibles 29,852 (260,771) Dividend waiver from acquired subsidiaries - (48,971)
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Earnings Release 2Q26 42 ATTACHMENT 5 ENGIE BRASIL ENERGIA S.A. FACT SHEET 2Q26 Hydro 62% Own Installed Capacity Complementary 38% 1 Corporate Overview Balanced portfolio of business in energy infrastructure ENGIE Brasil Energia is an investment platform in energy infrastructure, active in the areas of generation, commercialization, trading and transmission as well as natural gas transportation, through the intermediary of Transportadora Associada de Gás – TAG, jointly with other partners. As an 100% renewable energy generator in the Brazilian private sector, implements and operates projects from renewable sources such as hydroelectric, wind farms, photovoltaic and biomass plants together with small hydroelectric plants. The Company operates with transparency, financial discipline, respect for the environment, support for communities and focus on operational efficiency as drivers of long-term growth. The market cap, as of June 30, 2026, was R$ 39.8 billion, and the own installed capacity totaled 11,266 MW, which comprises a generating complex of 145 plants, of which 13 are hydroelectric power plants and 132 fired from complementary sources: one biomass- fired plant, 88 wind power plants, 2 small hydroelectric plants and 41 solar plants. In the transmission segment, the Gralha Azul, Novo Estado and Gavião Real Transmission Systems are in full operation and Graúna and Asa Branca in partial operation. Own installed capacity of 11,266 MW (5,357 aMW), 3,205 Km of transmission lines under operation and a stake of 17.5% in TAG. Ownership Structure Energy Balance ENGIE Brasil Energia is controlled by French group ENGIE, a global leader in the independent production of energy with its activities in around 30 countries. With a strong presence in electricity, natural gas and energy services businesses with a worldwide electric energy capacity of about 100 GW, ENGIE holds 68.7% of the Brazilian company through ENGIE Brasil Participações Ltda. Energy Balance (% of total; in aMW) | as of June 30, 2026 68.7 % 9.9 % 21.4 % Banco Clássico S.A. ENGIE Brasil Participações Ltda. Other ENGIE Brasil Energia S.A. Hydro Complementary Expansion Transmission TAG
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Earnings Release 2Q26 43 ATTACHMENT 5 ENGIE BRASIL ENERGIA S.A. FACT SHEET 2Q26 1,8x Notes: 1 Adjusted Ebitda: net income + income tax and social contribution + financial result + depreciation and amortization + impairment + non-recurrent. 2 Adjusted EBITDA, net of IFRS effects from the transmission segment and quota plants. 3 OE: dju d n nc m f h p 4 qu r r / h r h d r ’ qu . 4 ROIC: effective rate x adjusted EBIT / invested capital (invested capital: debt – cash and cash equivalents – deposits earmarked for debt servicing + SE). 5 Total gross electricity output from the plants operated by ENGIE Brasil Energia. 6 Disregarding sales for quotas regime (Jaguara and Miranda HPPs). 7 Net of taxes and trading operations. Indebtedness (R$ million) Net debt1 (R$ million) Net debt/ LTM Adjusted Ebitda2 (x) Notes: 1 Debt net of hedge operations. 2 Adjusted Ebitda in the past 12 months. Dividend Policy • By-law minimum payout: 30% of distributable net income. • Management commitment: minimum payout of 55% of distributable net income. • At least 2 dividends per year. Notes: 1 Payout equivalent to 100% of the distributable adjusted net income (ex- hydrological risk negotiation). 2 For the purposes of comparability between fiscal years, an adjustment in dividend per share was made in the light of the share bonus approved on 12/07/2018 and 11/05/2025. 3 Considers the annual adjusted net income. 4 Based on volume-weighted closing price of ON shares in the period. 5 Payout equivalent to 55% of the distributable net income (excluding gains on partial disposal of investments in TAG). 6 Payout ratio equivalent to 55% of distributable net income (excluding the financial gain from the UBP renegotiation). Adjusted net income (R$ million) Adjusted Ebitda (R$ million) Net revenue (R$ million) Investors Relations Rua Paschoal Apóstolo Pítsica, 5064 – Zip Code 88025-255 Florianópolis – SC Phone: +55 (48) 3221-7904 www.engie.com.br/investidores / ri.BREnergia@engie.com 4 5 1 6 Consolidated (in R$ million) 2Q26 2Q25 Chg. 6M26 6M25 Chg. Net Operating Revenue (NOR) 3,511 3,086 13.8% 6,920 6,100 13.4% Results from Operations (EBIT) 1,761 1,541 14.3% 3,626 3,262 11.2% Adjusted Ebitda 1 2,179 1,866 16.8% 4,423 3,906 13.2% Adjusted Ebitda by transmission and quota effects 2 1,939 1,715 13.1% 4,027 3,523 14.3% Adjusted Ebitda / NOR - (%) 1 62.1 60.5 1.6 p.p. 63.9 64.0 -0.1 p.p. Adjusted Net Income 694 564 23.0% 1,483 1,387 6.9% Adjusted Return on Equity (ROE) 3 18.3 23.1 -4.9 p.p. 18.3 23.1 -4.9 p.p. Adjusted Return on Invested Capital (ROIC) 4 13.9 15.4 -1.5 p.p. 13.9 15.4 -1.5 p.p. Gross Power Production (avg MW) 5 4,355 4,088 6.5% 5,093 4,736 7.5% Energy Sold (avg MW) 6 4,852 4,254 14.1% 4,878 4,346 12.2% Average Net Sales Price (R$/MWh) 7 208.28 217.01 -4.0% 212.38 215.50 -1.4% Number of Employees - Total 1,402 1,265 10.8% 1,402 1,265 10.8%
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Earnings Release 2Q26 44 www.engie.com.br