ISA CTEEP Investment and Infrastructure Update

STRONG CASH GENERATION BOOSTED BY RBSE REGULATORY RESULTS HIGHLIGHTS Note: 1 Last twelve months ended on 06/30/2018 Margem EBITDA NET REVENUE (BRL MILLION) 2,719 1,778 890 955 isa CTEEP O&M COSTS ex-depreciation (BRL MILLION) 507 493 483 469 2015 2016 2017 LTM¹ 2015 2016 2017 LTM¹ EBITDA (BRL MILLION) NET INCOME (BRL MILLION) 46.2% 51.3% 76.0% 85.3% 1,114 2,318 890 488 1,351 247 246 635 2015 2016 2017 LTM¹ Net Revenue and EBITDA include only 100% owned subsidiaries. Shared control companies are accounted as equity shareholder. 2015 2016 2017 LTM¹ 29

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