Companhia Energetica De Minas Gerais Sa · BMFBOVESPA:CMIG3
Companhia Energetica De Minas Gerais Sa — Energy Co of Minas Gerais — Q1 2026 Earnings Presentation
25 slides from Companhia Energetica De Minas Gerais Sa's earnings presentation, Jun 9, 2026
Slide 1: Earnings Release 1Q26
EARNINGS RELEASE 2026 CEMIG )1Q26 “——> Conference Call | Webcast “> May 8 (Friday), at 1:00 p.m. (Eastem Time) Link - CEMIG - WEBCAST cwica CIG. cig.c vm Ta Qins 7 NYSE NYSE IBRX100B3 IEEB3. ISEB3_ICO2.B3
Slide 2: Operational resilience amid market challenges
“Operational resilience amid market challenges.”
Slide 3: Share of energy sales by segment
Share of energy sales by segment 1Q25 Residential mindustrial Retail and Services Rural Other
Slide 4: Cemig | Earnings Release 8
Cemig | Earnings Release 8
Slide 5: Performance by Sector
Performance by Sector Industrial: Energy distributed to industrial customers decreased by 6.2%* YoY and accounted for 45.5%* of Cemig D’s total. The majority relates to energy supplied to industrial free-market customers (44.4%), which declined by 5.2% YoY. Meanwhile, billed energy for captive custo
Slide 6: Regulatory Ebitda and Quality Indicators DEC/FEC
Regulatory Ebitda is calculated by reference to: (i) remuneration of capital; (ii) the QRR quota (Gross base x annual depreciation rate); and (iii) a percentage of the Annual Cost of Facilities and Real Estate, published in Aneel Technical Notes at the times of Tariff Reviews and Tariff Adjustments.
Slide 7: Combating Delinquency
Combating Delinquency The Receivables Collection Index has remained above 99% since 2022, reaching 99.18% in March 2026. This performance reflects the effectiveness of our collection tools and the successful conclusion of key negotiations, leading to improved cash collections from customers. Digital
Slide 8: Losses
Losses Energy losses remained below the regulatory target in the 12-month period ended March 2026, reaching 11.41%, compared to a target of 11.48%. Following the tariff adjustment effective May 28, 2025, an enhanced methodology for calculating non-technical loss coverage—defined by ANEEL in Technica
Slide 9: Total Losses
Total Losses B 692 687 661 6.55 rea 2019 © 2020 ©2021 «= 2022» 2023 2024 «2025-12026 eee Actual Losses, TWh mmmeTotal Real Losses, % =ss=Total Regulatory Losses, %
Slide 10: Actual Losses and Regulatory Losses
Actual Losses B 1271 12.67 2019 © 2020-2021 «2022, 202820242025. a1 2026 ees % Total —=% Nontechnical —% Tectnieal Losses losses losses Regulatory Losses B 151 11.43 11.28 2019 © 2020 2021 = 2022-2023 2024202512028 lam % Regulatory ——% Nontechnical ——% Technical Losses losses losses
Slide 11: Energy Balance
Energy Balance MWaverage March 2026 | Purchase: and sale | os per Satagie Planning 2024 2027 2028 2029 2030 2081 2032 2033 2034 = Regulated Market sales (to distributors) = Regulated Market sales - SPCs (to dishibutors) Free Market sales - conventional Incentive-bearing Free Market Sales = Supply av
Slide 12: Supply Revenue, Transmission and Gas
* Including DG-offset energy Supply Revenue Gross revenue from energy supply totaled R$8,995.1 million in 1Q26, compared to R$8,374.4 million in 1Q25, up 7.4% YoY, mainly driven by Cemig D’s annual tariff adjustment effective May 28, 2025, with an average increase of 7.78%. Transmission The Company’
Slide 13: Cemig | Earnings Release 21
Cemig | Earnings Release 21
Slide 14: Personnel Cost Evolution
Personnel Cost Evolution R$ million excluding VDP 324 389326 1024 2024 3024 4024 1025 2025 3025 4025 1026
Slide 15: Employees and management profit sharing; Equity Income
Employees and management profit sharing The expense related to profit sharing was R$45.1 million in 1Q26, up R$1.8 million YoY. Equity Income EQUITY INCOME (R$ thousand) 1Q26 1Q25 Change (R$ thousand) Taesa 74,184 76,084 -1,900 Cemig Sim 4,894 -4,894 Paracambi 4,098 3,571 Cachoeirão HPP 2,277 1,750
Slide 16: Cemig | Earnings Release 27
Cemig | Earnings Release 27
Slide 17: Capex
Capex Investments executed $1.48 billion in 1026 Implementation of the LARGEST investment program in the company's history ensures MODERNIZATION and RELIABILITY of CEMIG's electric system. 2026 Plan Investments executed Investment of R$6.72 billion “ We invested 4.6X QRR’ in 2025 375 ‘= Distribution
Slide 18: Disciplined execution of financial strategy
The Company maintains disciplined execution of its financial strategy, focused on optimizing cash flow, reducing the cost of capital, and extending its debt maturity profile. Average debt maturity reached 6.6 years at the end of 1Q26. Notably, 76% of total debt matures in 2029 or later, positioning
Slide 19: Cemig's credit ratings have steadily improved
Cemig’s credit ratings have steadily improved in recent years, reaching the highest level in the Company’s history. In 2025, the Company received an AAA rating from an additional credit rating agency, following a Moody's upgrade, further underscoring its financial strength, consistent performance, a
Slide 20: Credit rating agencies
FitchRatings STANDARD &POOR’S Moopy’s ge Oe RO RO BB wm wea 10 = = 205 SI seale
Slide 21: Corporate Highlights
Corporate Highlights Energy Transition Cemig reinforces its climate leadership by achieving 100% offsetting of Scope 1 emissions for 2024 ahead of schedule (with 2025 figures still pending) and expects to continue offsetting emissions in the coming years. In parallel, 700 municipalities are now serv
Slide 22: Sustainability
Sustainability indicators were reorganized to better align with Cemig’s new Materiality Matrix ( pp. 6–7 of the Cemig Sustainability Report ), which identifies eight material topics—three considered double material, four financially material, and one impact material. This reorganization strengthens
Slide 23: Cemig | Earnings Release 33
Cemig | Earnings Release 33
Slide 24: 2% /EEEEY wsov
25.0% 2% /EEEEY wsov 15.0% {EEE coisa 10.0% ‘EEE cmc son EEE cex 0.0% 5.0% 0.0% Jan26 Feb-26 Mar-26
Slide 25: Cemig | Earnings Release 36
Cemig | Earnings Release 36
Energy Co of Minas Gerais — Q1 2026 Earnings Presentation on 6ix