Light S.A.BMFBOVESPA: LIGT3

Notice to the Market - 2Q25 Earnings Release

· Issued by Light S.A.
Earnings Presentation

2Q25

MESSAGE FROM THE CEO

CRISTO REDENTOR - RIO DE JANEIRO

Highlights

CONSOLIDATED

R$ 3.2 BN R$ 368 MN 760 avg.MW

Cash position

(+R$87 million vs dec/24)

Net income in 6M25

(reversing a loss of R$409 million in 6M24)

Volume traded by Light Energia + Com. in 6M25 (+48% YoY)

DISTRIBUTION

R$ 4.4 BN

Net debt in jun/25

(-50% vs jun/24)

R$ 686 MN

Investments in 6M25

(+106% in expansion and maintenance YoY)

DEC 6.23H

FEC 2.95x

(best FEC and 2nd best DEC for a second quarter)

4

DisCo market | Year-to-date contraction in consumption concentrated in Q2

due to lower temperatures

DisCo

Operational

Notes

(1) Billed market excludes non-recurring items; (2) Other categories including other disco consumption; (3) Distributed Generation (compensated and simultaneous)..

5

DisCo Quality | Focus on the quality of the operation, maintaining indicators below

regulatory limits

DisCo

Operational

Other relevant operational indicators:

TMAE

-40%

(6M25 vs 6M24)

Interruptions 24h+

-50%

(6M25 vs 6M24)

Notes: DEC/FEC indicators may be subject to minor changes within the ANEEL calculation and revision period.

TMAE = Average emergency response time DEC = Equivalent duration of interruptions in the energy supply per consumer unit FEC = Equivalent frequency of interruptions in the energy supply per consumer unit.

6

Reduction in the volume of new cases, particularly in civil litigation continues to drive results.

Quarterly

improvements,

stable year-over-year

Delinquency (PECLD)

Increased efforts to ensure quality of in electricity supply and intensification of collection and revenue protection measures

PMSO

DisCo EBITDA | Higher PMSO with focus on maintaining service quality

DisCo

Financials

Contingencies

Note: 1) Adjusted EBITDA = CVM EBITDA, excluding NRV, Other operating income/expenses, Equity income and non-recurring items.

7

Generation & Trading

Generation & Trading EBITDA | Renewal of relevant contracts at new market conditions

Financials

Note: Generation & Trading excludes the impact of mark-to-market of energy contracts in the trading business.

8

Q&A

CRISTO REDENTOR - RIO DE JANEIRO

ri.light.com.br

[email protected]

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