Investor Presentaiton

SNAPSHOT: EECL IN 2018 2018: THE BEGINNING OF A NEW ERA NEW PPA: REVENUE & EBITDA GROWTH Contracted revenue growth ~8,200 GWh p.a. in 2017 ~11,700 GWh p.a. in 2019 More balanced portfolio (Unregulated/regulated) • 77%/23% in 2017 52%/48% in 2019 Expected EBITDA growth (>80% in 2 years) Clients' Sales (GWh) 43% INTERCONNECTION TEN: 600-km, 500 kV, US$0.9bn, transmission project On schedule, within budget, operating since 24-Nov-17 • Regulated & contracted revenue; US$80 million EBITDA p.a. TEN: 50/50 Joint Venture 80% project financed NEW POWER SUPPLY IEM + Puerto Andino US$1 bn investment including port In commissioning, on budget IEM Port COD: 3Q18 IEM: 375 MWe gross capacity +2 LNG cargoes - 2018 +1 LNG cargo - 2019 1-year bridge contracts with generation companies to meet new PPA 2017 2018 2019 Regulated EECL Red Eléctrica 50% 50% ■ Unregulated Engie Energía Chile Presentation to Investors - 1Q 2018 ENGIC 7

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