ISA CTEEP Investment and Infrastructure Update

ISA CTEEP. CONTROLLED BY ISA FREE FLOAT OF 64% Shareholder Structure on 06/30/2018 isa 35.8% CTEEP Common shares: 64,484,433 Preferred shares: 100,236,393 Total: 164,720,826 ISA Capital do Brasil Common shares: 89.5% Preferred shares: 1.3% 35.4% 64.2% Free Float Common shares: 10.5% Preferred shares: 98.7% Eletrobras Common shares: 9.8% Preferred shares: 51.9% 28.8% Others Common shares: 0.7% Preferred shares: 46.8% ■ Tickers: TRPL31 and TRPL42 ■ Average daily volume in 2Q18: BRL 24.5 million Market cap³: BRL 9.6 billion ■ Free Float: 77% of Brazilian investors 23% of foreign investors isa CTEEP ■ American Depositary Receipt ("ADR"): "CTPTY" and "CTPZY" ■ Coverage of 15 institutions: 53% Buy 47% Hold Notes: 1 Common share | 2 Preferred share | 3On 06/30/2018 7

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