Slide 1: Non Deal Roadshow March 2025
NON DEAL ROADSHOW March 2025
Slide 2: Company Representatives
Company Representatives Miguel Alarcón Soledad Errázuriz Isidora Zaldívar Chief Financial Officer Finance Manager Head of Investor Relations ✓ 19 years at Colbun ✓ 10 years of experience in ✓ 9 years of experience in Finance and Investor Investment and Financial ✓ 2 years as CFO Relations Sector ✓ R
Slide 3: Agenda
AGENDA 1. COLBUN AT A GLANCE 2 . 2030 STRATEGIC AGENDA 3 . GREEN FRAMEWORK 4 . PIPELINE OF PROJECTS 3
Slide 4: Colbun at a Glance
1. COLBUN AT A GLANCE Totoral Wind Farm 4
Slide 5: Main figures
COLBUN AT A GLANCE Main figures INSTALLED CAPACITY1 MARKET SHARE OWNERSHIP (%) 5,023 MW 4,451 MW 572 MW 14% 7% 50% 21% 19% 10% 58% 42% In terms of generation Renewable Thermal Matte Others Pension Angelini Group Funds Group ~6,100 MW Renewable capacity pipeline 2 INTERNATIONAL RATINGS KEY FINANCIALS
Slide 6: Markets where we operate
COLBUN AT A GLANCE Markets where we operate INSTALLED CAPACITY LTM GENERATION DEMAND GROWTH MARGINAL COST (GW) (GWh) (12 months average %) (US$/MWh) 300 Alto 250 Jahuel 3% Hydro Crucero 10% 22% 32% 200 Coal 8% Puerto 6% 150 Montt SEN Natural Gas 4% 3,1% 100 37 GW 85,633 2% 59 GWh Wind 50 36 + 7.3% y
Slide 7: Our facilities
COLBUN AT A GLANCE Our facilities DIVERSIFIED GENERATION ASSETS Reservoir 572 MW 7% 21% Run of the River 1,275 MW 26% Solar 1 1,055 MW 212 MW 8 MW 5,023 1 11% Wind MW BESS 1,105 MW 217 MW 7% 5% 2% Coal Fired 747 MW 358 MW 199 MW 18 MW 21% Combined Cycle 458 MW 1,233 MW Open Cycle 2 350 MW 108 MW 886
Slide 8: Commercial Strategy
COLBUN AT A GLANCE Commercial Strategy 1. FOCUS ON UNREGULATED CLIENTS 11% ✓ Renewable Energy 24/7 ✓ Secure supply 89% ✓ Consumption profile Unregulated Regulated ✓ Bilateral contracts 2. PPAs PROFILE 14 Unregulated Regulated 12 10 8 107 24% 90 8 years Energy of the energy average Solutions for mini
Slide 9: Thermal generation flexibility
COLBUN AT A GLANCE Thermal generation flexibility Colbun’s PPAs backed by its own generation (TWh)1 Ensuring generation units availability and reliability 11.6 11.9 10.3 9.8 10.2 Gas Maintenance optimization considering the system’s and Colbun’s conditions Coal Wind Preparation, flexibility and cont
Slide 10: Resiliency towards hydrological conditions
COLBUN AT A GLANCE Resiliency towards hydrological conditions EBITDA (US$ mm) +8% +5% +2% -2% -6% -9% H x 1.3 H x 1.2 H x 1.1 BASE H x 0,9 H x 0.8 H x 0.7 Wet hydro conditions Dry hydro conditions Lower Spot Balance Higher Spot Balance - Lower thermal generation and lower + Higher thermal generation
Slide 11: Key financial figures
COLBUN AT A GLANCE Key financial figures 1. EBITDA & EBITDA MG (US$ million & %) 2. CAPEX & CASH POSITION (US$ million) EBITDA Capex EBITDA Mg 1419 Cash 51% 40% 1155 39% 41% 967 1031 33% 775 522 254 274 202 683 520 763 714 642 113 2020 2021 2022 2023 2024 2020 2021 2022 2023 2024 3. DIVIDENDS DISTRI
Slide 12: Financial Debt Snapshot
COLBUN AT A GLANCE Financial Debt Snapshot FINANCIAL DEBT PROFILE US$ 4.8 100% 2.0 bn 3.95% years USD 83% 44% Consolidated Interest Rate Average Composition Fixed Interest Green Financial Debt Average Life by currency Rate Financing Percentage Percentage AMORTIZATION STRUCTURE (US$ million) 600 Feni
Slide 13: 2030 Strategic Agenda
2 . 2030 STRATEGIC AGENDA Horizonte Wind Farm 13
Slide 14: Strategic Pillars and ESG Alignment
2030 STRATEGIC AGENDA Strategic Pillars and ESG Alignment We transform energy, in balance with the planet to boost your projects and dreams. Core business Expanding our limits New businesses Asset Renewable Customers Energy Growth and Water Green Optimization Energy 24/7 Solutions + International Hy
Slide 15: Strategic Pillars 2024 milestones
2030 STRATEGIC AGENDA Strategic Pillars 2024 milestones We transform energy, in balance with the planet to boost your projects and dreams. Core business Expanding our limits New businesses Asset Renewable Customers Energy Growth and Water Green Optimization Energy 24/7 Solutions + International Hydr
Slide 16: Green Framework
3 . GREEN FRAMEWORK Ovejería photovolaic plant 16
Slide 17: SPO Review
GREEN FRAMEWORK SPO Review SUSTAINABILITY QUALITY SCORE RENEWABLE ENERGY Relevance Magnitude SQS5 SQS4 SQS3 SQS2 SQS1 SQS1 Poor Limited Moderate Significant High Weak Intermediate Good Very good Excellent ENERGY EFFICIENCY Relevance ALIGNMENT WITH PRINCIPLES CONTRIBUTION TO SUSTAINABILITY Magnitude
Slide 18: Eligible Category and Criteria
GREEN FRAMEWORK Eligible Category and Criteria TERRESTRIAL AND CLIMATE CHANGE RENEWABLE ENERGY ENERGY EFFICIENCY AQUATIC BIODIVERSITY ADAPTATION Construction, acquisition, Focus on reducing energy Focus on conservation, Projects should enhance development, investment, consumption and protection, and
Slide 19: Pipeline of Projects
4 . PIPELINE OF PROJECTS Diego de Almagro Sur Storage System 19
Slide 20: Pipeline status
PIPELINE OF PROJECTS Pipeline status PROGRESS 580 MW 1,523 MW PROGRESS 538 MW Preliminary Feasibility Preliminary 1,298 MW STAGE studies Feasibility STAGE studies 2,983 MW 800 MW 1,054 MW Suspended Construction Environmentally approved 1.4 GW 0.4 GW Inti Pacha Horizonte 1, 2 & 3 816 MW 925 MW PV + +
Slide 21: Growth Strategy
PIPELINE OF PROJECTS Growth Strategy Our hydroelectric capacity is a key complement to renewable energy from variable sources for the 24/7 renewable PPAs supply We have a diversified pipeline of projects that are among the most competitive of the country Predictable cash flows, sustained by long-ter
Slide 22: Non Deal Roadshow March 2025
NON DEAL ROADSHOW March 2025
Slide 23: SEN available supply by 2025 (MW)
ANNEX SEN available supply by 2025 (MW) Renewable Average capacity by Demand Balance 2025 (A) (B) (A – B) 4,421 8,439 49 12,909 3,334 +9,575 North 1,457 175 2,241 1,465 3,881 3,720 +161 Center 118 1,902 1,330 5,890 9,122 2,558 +6,564 South 125 6,498 12,010 7,404 25,912 9,612 +16,300 Total 1,700 Chil
Slide 24: System's thermal power plants
ANNEX System’s thermal power plants 2.2 GW 9 power plants 1.9 GW 5 power plants Nehuenco 0.8 GW 5 power plants Start-up times 1.8 GW improvements. 5 power plants 0.5 GW 2 power plants Santa Maria 0.4 GW Technical minimum 1 power plant decrease and qualification to Combined provide ancillary Cycles s
Slide 25: Regulatory Framework Challenges
ANNEX Regulatory Framework Challenges Permitting Decarbonization Climate Change Green Hydrogen Bidding market Distribution Plan Adaptation and Desalination 25
Slide 26: Board of Directors
ANNEX Board of Directors MEMBERS Juan Carlos Vivianne Blanlot Franco Bozzalla Rodrigo Donoso Marcela Angulo Munita Altmann Martín González Soza Trabucco Independent Bernardo Larraín Andrés Kuhlmann Francisco Matte Hernán Rodríguez Matte Jahn Izquierdo Wilson Vice-Chairman Independent Chairman NUMBER