Sec Form 3 Filing - Haiama Eduardo @ BRAZILIAN ELECTRIC POWER CO - 2026-03-18

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Haiama Eduardo 2. Issuer Name and Ticker or Trading Symbol BRAZILIAN ELECTRIC POWER CO [ AXIA3] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) See Remarks* (Last) (First) (Middle) AVENIDA GRACA ARANHA, NO. 26, CENTRO 3. Date of Earliest Transaction (MM/DD/YY) 03/18/2026 (Street) RIO DE JANEIRO20030-000 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Options ( 1 ) $ 42 ( 4 ) ( 2 ) ( 3 ) Common Shares 770,331 D Stock Options ( 1 ) $ 42 ( 4 ) ( 2 ) ( 3 ) Common Shares 231,094 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Haiama Eduardo AVENIDA GRACA ARANHA, NO. 26 CENTRO RIO DE JANEIRO20030-000 See Remarks* Signatures /s/ Eduardo Haiama 03/18/2026 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The stock options were issued pursuant to the Eletrobras - Brazilian Electric Power Co.'s (the "Company") restricted share based compensation program. Exercise is conditioned up the achievement of certain performance goals, as set forth in the award agreement, and the satisfaction of certain other conditions. ( 2 )1/3 of the stock options vest 3 years from grant date, with the remaining vesting on the 4th and 5th anniversaries from grant date, subject to certain conditions, as set forth in the award agreement. ( 3 )The reporting person must exercise vested options within 120 days after each respective maturity period, failing which the options lapse. Upon exercise, the reporting person is subject to a lock-up period of 180 calendar days during which the shares may not be sold, transferred, or encumbered. ( 4 )The exercise price is R$42.00 per share accrues interest at a rate of 5% per annum from grant date to exercise date and is subject to certain other adjustments.

Remarks: *Executive Vice-President of Finance and Investor Relations. The Company currently trades on the B3 S.A. - Brasil, Bolsa, Balcao (B3) under the following ticker symbols, "AXIA3" for its Common Shares;"AXIA6" for its Class "B1" Preferred Shares and "AXIA7" for its Class "C" Preferred Shares.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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