Investor Presentaiton

ADDENDA TRANSMISSION Infrastructure EECL, a relevant player in the transmission business 2,293 kms. 844 MVA EECL operates 23 substations with total capacity of 844 MVA US$ 16 million regulated revenue p.a. 5 ■Transmission substations 891 589 124 98 Dedicated EECL operates 2,293 kms. of transmission lines Kms of transmission lines 8% 2,293 Kms. 92% ■ Owned & Operated ■ Operated ■Generation substations 844 MVA 18 AVI + COMA for National & Zonal systems (in millions of US$) 6 US$ 16 million 351 10 213 National 28 Zonal 13.8-23 kV 66 kV 110 kV 220 kV Engie Energía Chile Presentation to Investors - 1Q 2018 ■National toll ■ Zonal toll 35 ENGIE

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