CTEEP Companhia de Transmissão de Energia Eletrica Paulista S A : 11/26/2021 Presentation to Investors - September 2021

ISA CTEEP

September/2021

Disclaimer

The statements contained in this report regarding the business perspective of ISA CTEEP ("ISA CTEEP", "CTEEP", "Company"), projections and its growth potential constitute mere forecasts and were based on management's expectations regarding the future of the Company. These expectations are highly dependent on changes in the market, Brazil's overall economic performance, the sector and international markets, and are subject to change.

Financial information has been prepared in accordance with CVM standards and CPCs, and complies with international accounting standards (IFRS) issued by the International Accounting Standard Board (IASB). The Regulatory Results are presented, according to the accounting practices adopted in Brazil. The purpose in the disclosure of the Regulatory Result is merely to collaborate in the understanding of ISA CTEEP's business. Summations may differ due to rounding. Regulatory results are audited only at the end of each fiscal year by the independent auditors.

2

Largest pure power transmission company in Brazil

Remuneration based on assets' availability adjusted by inflation, no demand risk, low default risk, and long-term contracts

10% market share in Brazil¹

Corporate Governance: Level 1 ("Nível 1") at B3 (Brazilian Stock Exchange)

Board of Director with 8 members (2 independent members), assisted by the Audit Committee and the Human Resources Committee

Controlled by ISA, a multilatin business group: 6 countries and Central America, 3 sectors (Energy Transmission, Highway Concessions and Telecommunications)

- ISA CTEEP represents ~59% of ISA's net income²

¹Total revenue of transmission segment in Brazil (21/22 cycle) of BRL40 billion. ²²Considers the 9M21 accumulated result in IFRS

33% of total energy

transmitted by the National

Interconnected System

(SIN)

94% of transmitted energy

in São Paulo

3

Energy transmission market in Brazil:

~75% of transmission contracts are renewed and ~25% are from auctions

Renewed

Contracts

Synthetic Competition

Tariff Reset every 5 years

• Operation & Maintenance
• WACC
• Regulatory Asset Base (BRR)
• Small improvements

Efficiency gains shared with

consumers trough tariff

Next tariff reset in 2023

Contracts from

Auctions

Real Competition

Revenue (RAP) defined in the auction

Most revenue (RAP) parameters are fixed

Retrofitting investments face a tariff reset process similar to those applied

for renewed contracts

Lower tariff predictability

Higher tariff predictability

4

Only private transmission company with renewed and bid contracts

Permitted Annual Revenue (RAP) - 2021/2022 cycle¹

14%

Renewed Contract

(contract 059)

New Investments

18%

31% O&M

• Renewed Contract (Contract 059)
• • Efficiency premium: #1 in ANEEL's ranking
  • ~BRL240 million/year in retrofitting capex with and additional revenue of ~BRL48 million/year¹

25%

• Bid Contracts

61%• Higher tariff predictability

51%

RBSE

• Operational synergy

Renewed Contract (Contract 059) Bid Contracts in operation

Bid Contracts in construction

¹ Nos últimos 5 anos	5