SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of the
Securities Exchange Act of 1934
For the month of July, 2026
Commission File Number 1-34129
AXIA Energia S.A.
(Exact name of registrant as specified in its
charter)
AXIA Energia S.A.
(Translation of Registrant's name into English)
Avenida Graça Aranha, 26
Centro, CEP 20030-900
Rio de Janeiro, RJ, Brazil
(Address of principal executive office)
Indicate by check mark whether the registrant
files or will file annual reports under cover Form 20-F or Form 40-F.
Form 20-F ___X___ Form 40-F _______
Indicate by check mark whether the registrant
by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule
12g3-2(b) under the Securities Exchange Act of 1934.
Yes _______ No___X____
Classification: Public TIJOÁ PARTICIPAÇÕES E INVESTIMENTOS S.A. Appraisal report on the net worth at book value determined
based on the accounting books As of June 10, 2026 (A free translation of the original in Portuguese) TATICCA 1 | 8 Classification: Public
www.taticca.com.br 14 Alameda Rio Branco, Downtown. Blumenau - SC, 89010-300 Phone: +55 47 3232-2040 Appraisal report on the net worth
at book value determined based on the accounting books To Shareholders and Managers Tijóa Participações e Investimentos
S.A. Andradina | SP and AXIA ENERGIA S.A. Rio de Janeiro | RJ Qualification of the accounting firm TATICCA Auditores e Consultores Ltda.,
professional partnership established in the city of São Paulo, at Rua Doutor Geraldo Campos Moreira, No. 375, Room 51, Cidade Monções,
inscribed in the corporate taxpayers register (CNPJ) under No. 12.651.123/0001-71, originally registered with the São Paulo State
Regional Accounting Board under no. CRC 2SP034902/O, represented by its undersigned partner, Mr. Renato Mateus Gonçalves, married,
accountant, bearer of Identity Card (RG) No. 3.566.678, inscribed in the individual taxpayers register (CPF) under No. 007.384.579-57,
and registered with the Regional Accounting Board of the State of Santa Catarina under no CRC-SC 042650/O-6, with office at the same address
of the represented company, which is appointed expert by the management of TIJOÁ Participações e Investimentos S.A.,
a privately held corporation headquartered in the city of Andradina, State of São Paulo, at Rodovia Euclides de Oliveira Figueiredo,
unnumbered, ZIP Code 16.902-175, inscribed in the corporate taxpayers register (CNPJ) under No.14.522.198/0001-88, to proceed with the
valuation of the net book value of TIJOÁ Participações e Investimentos S.A. at June 10, 2026, as summarized in Appendix
I and Appendix II, in accordance with the accounting practices adopted in Brazil, hereby presents the results of its works. Purpose of
the appraisal 1. The purpose of the appraisal of the net worth at book value on June 10, 2026 of TIJOÁ Participações
e Investimentos S.A. is the merger of such Company into AXIA Energia S.A. (“AXIA”), inscribed in the corporate taxpayers register
(CNPJ) under No. 00.001.180/0001-26, which shall be submitted for analysis and approval by its shareholders. Management’s responsibility
for the accounting information 2. The company’s management is responsible for maintaining the accounting records and preparing accounting
information in accordance with Brazilian accounting practices, as well as for relevant internal controls that it has determined to be
necessary to ensure the preparation of such accounting information is free from material misstatement, whether due to fraud or error.
A summary of the significant accounting practices adopted by the company is described in Appendix II to this appraisal report. TATICCA
2 | 8 www.taticca.com.br 14 Alameda Rio Branco, Downtown. Blumenau - SC, 89010-300 Phone: +55 47 3232-2040 Classification: Public Scope
of work and accountant’s responsibility 3. Our responsibility is to express a conclusion on the equity value determined through
the accounting records of TIJOÁ Participações e Investimentos S.A. (Company), as of June 10, 2026, based on the work
performed in accordance with Technical Communication CTG 2002, approved by the Brazilian Federal Accounting Council (CFC), which requires
the application of examination procedures on the balance sheet for the issuance of an appraisal report. Accordingly, we examined the company’s
balance sheet in accordance with Brazilian and International Standards on Auditing, which require auditors to comply with ethical requirements
and perform the audit with the objective to obtain reasonable assurance that the shareholders’ equity determined for the preparation
of our appraisal report is free from material misstatement, whether due to fraud or error. 4. An appraisal report involves the performance
of selected procedures to obtain evidence regarding the amounts recorded. The procedures selected depend on the accountant’s judgment,
including the assessment of the risks of material misstatement of shareholders’ equity, whether due to fraud or error. In making
these risk assessments, the accountant considers the relevant internal controls related to the preparation of the company’s balance
sheet in order to design procedures that are appropriate under the circumstances, but not for the purpose of expressing an opinion on
the effectiveness of the company’s internal controls. The work also includes evaluating the appropriateness of the accounting policies
used and the reasonableness of accounting estimates made by management. We believe that the evidence obtained is sufficient and appropriate
to support our conclusion. Conclusion 5. Based on the work performed, we conclude that the amount of R$ 129,132,212.69 (one hundred twenty-nine
million, one hundred thirty-two thousand, two hundred twelve reais and sixty-nine cents), according to the balance sheet as of June 10,
2026, recorded in the accounting books and summarized in Appendix I, represents, in all material respects, the company´s shareholders’
equity of TIJOÁ Participações e Investimentos S.A., evaluated in accordance with accounting practices adopted in
Brazil. Blumenau, SC, July 8, 2026. TATICCA Auditores e Consultores Ltda. CRC-SP-034902/O Renato Mateus Gonçalves Partner Accountant
CRC-SC-042650/O-6 Appendix I to the appraisal report on the net worth at book value determined based on the accounting books TIJOÁ
Participações e Investimentos S.A. Summarized balance sheet As of June 10, 2026 In Brazilian reais This Annex is an integral
and inseparable part of the the appraisal report on the net worth at book value determined based on the accounting books of TIJOÁ
Participações e Investimentos S.A., issued by TATICCA Auditores e Consultores Ltda. on June 26, 2026. TATICCA 3 | 8 Classification:
Public Assets 06/10/2026 Liabilities and shareholders’ equity 06/10/2026 Current Current Cash and cash equivalents 61,426,435.52
Accounts payable 11,846,267.69 Trade accounts receivable 38,305,729.08 Sector charges 18,520,574.51 Recoverable taxes 18,661,633.10 Salaries,
provisions and social charges payable 2.402.566,61 Other assets 1,248,001.66 Provisions - Bonuses, incentives and charges 1.265.834,12
Judicial deposit 18,250,222.00 Taxes and contributions payable 25,498,749.08 Dividends payable 18,123,154.20 137,892,021.36 77,657,146.21
Non-current Non-current Judicial deposits - Rent 42,000.00 Other assets 2,856,555.86 Accounts payable 101,284.50 Deferred taxes 464,820.40
Special obligations 23,024,091.87 Property, plant and equipment 67,422,080.20 Intangible assets 21,237,257.45 23,125,376.37 92,006,840.73
Total liabilities 100,782,522.58 Shareholders’ equity Share capital 13,801,000.00 Revenue reserves 115,331,212.69 129,132,212.69
Total assets 229,914,735.27 Total liabilities and shareholders’ equity 229,914,735.27 Appendix II to the appraisal report on the
net worth at book value determined based on the accounting books JUNO Participações e Investimentos S.A. Management’s
notes to the balance sheet As of June 10, 2026 In Brazilian reais, unless otherwise indicated This Annex is an integral and inseparable
part of the the appraisal report on the net worth at book value determined based on the accounting books of TIJOÁ Participações
e Investimentos S.A., issued by TATICCA Auditores e Consultores Ltda. on June 26, 2026. TATICCA 4 | 8 Classification: Public 1. General
information Tijoá Participações e Investimentos S.A. (the company or concessionaire) is a privately held corporation
governed by private law, incorporated on September 23, 2011, whose corporate purpose is the exploitation of hydraulic potential for electricity
generation of electric power at the Três Irmãos Plant (Plant), as well as related and auxiliary activities connected to the
use of such resources and their respective facilities, in compliance with applicable regulatory standards. The company holds the concession,
under a regime of allocation of physical guarantee quotas and plant capacity, for the Plant until October 10, 2044, pursuant to Concession
Agreement No. 03/2014-MME, executed on September 10, 2014, granted by the Federal Government through the Ministry of Mines and Energy
(MME). The agreement established that the physical guarantee quotas of energy and plant capacity, as specified in the Concession Agreement,
are allocated to the distributors of the National Interconnected System (SIN). The Concessionaire is remunerated through revenue derived
from the tariff calculated by ANEEL, known as Annual Generation Revenue (ARG), which the company began receiving in October 2014. The
Plant is located in the municipality of Andradina, State of São Paulo, with a total installed capacity of 807.5 MW and assured
energy of 206.7 MWh. Corporate structure Tijoá is organized as a privately held corporation, and its shareholders are Juno Participações
e Investimentos S.A., with 50.1% of the shares, and AXIA Energia S.A., with 49.9% of the shares. Appendix II to the appraisal report on
the net worth at book value determined based on the accounting books JUNO Participações e Investimentos S.A. Management’s
notes to the balance sheet As of June 10, 2026 In Brazilian reais, unless otherwise indicated This Annex is an integral and inseparable
part of the the appraisal report on the net worth at book value determined based on the accounting books of TIJOÁ Participações
e Investimentos S.A., issued by TATICCA Auditores e Consultores Ltda. on June 26, 2026. TATICCA 5 | 8 Classification: Public 2. Basis
of preparation of the balance sheet and summary of the significant accounting policies 2.1 Basis of preparation The accounting policies
described below were applied consistently in preparing the shareholders’ equity appraisal report as of June 10, 2026. Shareholders’
equity was determined and is presented in accordance with accounting practices adopted in Brazil, which comprise the pronouncements issued
by the Accounting Pronouncements Committee (CPC) and are consistent with the International Financial Reporting Standards issued by the
IASB. The preparation of this information requires the use of certain critical accounting estimates and the exercise of judgment by the
company’s management in applying accounting policies. The areas that require a higher level of judgment and involve greater complexity,
as well as areas in which assumptions and estimates are significant to this information, are disclosed in Note 3. These accounting estimates
are determined by the management, taking into account factors and assumptions established based on judgments. Significant items subject
to these estimates and assumptions include assessments regarding the need to establish provisions for losses, among others. The settlement
of transactions involving these estimates may result to amounts that differ due to the inherent imprecision of the estimation process.
The Management reviews these estimates and assumptions annually. 2.2 Functional currency and presentation currency Items included in the
appraisal report on accounting shareholders’ equity are measured using the currency of the primary economic environment in which
the company operates (the “functional currency”). This information is presented in Brazilian reais (R$), which is the company’s
functional currency and also its presentation currency. 2.3 Cash and cash equivalents Cash and cash equivalents include cash on hand,
bank deposits and highly liquid short-term investments held to meet short-term cash commitments, measured at acquisition cost plus income
earned through the reporting date. The company considers cash equivalents to be short-term investments that are readily convertible into
a known amount of cash and subject to an insignificant risk of changes in value. The company includes as cash equivalents financial instruments
with maturities of three months or less. Appendix II to the appraisal report on the net worth at book value determined based on the accounting
books JUNO Participações e Investimentos S.A. Management’s notes to the balance sheet As of June 10, 2026 In Brazilian
reais, unless otherwise indicated This Annex is an integral and inseparable part of the the appraisal report on the net worth at book
value determined based on the accounting books of TIJOÁ Participações e Investimentos S.A., issued by TATICCA Auditores
e Consultores Ltda. on June 26, 2026. TATICCA 6 | 8 Classification: Public 2.4 Trade accounts receivable and provision for credit risk
Trade accounts receivable are recorded and maintained in the balance sheet at the nominal amount of the instruments representing such
credits, net of the allowance for expected credit losses, which are recognized based on an individual assessment of receivables, analysis
of economic conditions and historical losses recorded in prior years by aging list, in an amount considered by the company’s management
to be sufficient to cover probable losses on realization, as shown in the amounts presented. 2.5 Income taxes Current taxes The provision
for income taxes is based on taxable profit for the year. Taxable profit differs from profit reported in the statement of profit or loss
because it excludes income or expenses taxable or deductible in other years and permanently excludes non-taxable or non-deductible items.
The provision for income tax is calculated based on the rates effective at year-end. The company’s income tax and social contribution
on shareholders’ income are calculated as follows: Corporate income tax: at a rate of 15%, plus an additional rate of 10% on taxable
profit exceeding R$ 240,000. Social contribution: at a rate of 9%. Current income tax and social contribution expense is calculated based
on tax laws and regulations enacted as of the reporting date, in accordance with Brazilian tax regulations. Management periodically assesses
the positions taken in income tax returns with respect to instances where tax laws are open to interpretation, and records provisions,
when appropriate, based on the amounts expected to be paid to the tax authorities. Deferred taxes Deferred income tax (deferred tax) is
recognized on temporary differences between the carrying amounts of assets and liabilities recognized in the financial statements and
the corresponding tax bases used in determining taxable profit, including tax loss carryforwards, when applicable, at the end of each
reporting period. Deferred tax liabilities are generally recognized for all taxable temporary differences, and deferred tax assets are
recognized for all deductible temporary differences only when it is probable that the company will generate sufficient future taxable
profit against which such deductible temporary differences can be utilized. The recoverability of deferred tax assets is reviewed at the
end of each reporting period and, when it is no longer probable that future taxable profits will be available to allow recovery of all
or part of the asset, the carrying amount of the asset is adjusted to the amount expected to be recovered. Deferred tax assets and liabilities
are measured at the tax rates expected to apply in the period in which the liability is settled or the asset is realized, based on tax
rates provided for in tax legislation in force at the end of each reporting period or when new legislation has been substantively enacted.
Appendix II to the appraisal report on the net worth at book value determined based on the accounting books JUNO Participações
e Investimentos S.A. Management’s notes to the balance sheet As of June 10, 2026 In Brazilian reais, unless otherwise indicated
This Annex is an integral and inseparable part of the the appraisal report on the net worth at book value determined based on the accounting
books of TIJOÁ Participações e Investimentos S.A., issued by TATICCA Auditores e Consultores Ltda. on June 26, 2026.
TATICCA 7 | 8 Classification: Public The measurement of deferred tax assets and liabilities reflects the tax consequences that would result
from the manner in which the company expects, at the end of each reporting period, to recover or settle the carrying amount of these assets
and liabilities. Deferred tax assets and liabilities are offset only when there is a legally enforceable right to offset current tax assets
against current tax liabilities and when they relate to taxes levied by the same tax authority and the company intends to settle its current
tax assets and liabilities on a net basis. 2.6 Financial instruments – initial recognition and subsequent measurement The company’s
financial instruments consist of cash and cash equivalents, trade accounts receivable, amounts due from related parties, trade payables,
and loans and financing. Financial instruments are recognized in accordance with CPC 48 (IFRS 9) – Financial Instruments. The initial
recognition of these financial assets and liabilities occurs only when the company becomes a party to the contractual provisions of the
instruments, and they are recognized at fair value plus, for instruments not measured at fair value through profit or loss, any directly
attributable transaction costs. After initial recognition, the company classifies financial assets as subsequently measured at: Amortized
cost When financial assets are held to collect contractual cash flows and the contractual terms of these assets give rise solely to payments
of principal and interest on the outstanding principal amount. Fair value through other comprehensive income (FVOCI) When financial assets
are held both for the purpose of receiving contractual cash flows and for sale. In addition, the contractual terms must give rise solely
to payments of principal and interest on the outstanding principal amount. Fair value through profit or loss (FVTPL) When financial assets
are not measured at amortized cost or at fair value through other comprehensive income, or when they are designated as such on initial
recognition. Financial instruments are designated as measured at fair value through profit or loss when the Company manages and makes
purchase and sale decisions for such investments based on their fair value and in accordance with its documented investment and risk management
strategy. After initial recognition, attributable transaction costs are recognized in profit or loss when incurred, as are the results
of fluctuations in their fair value. The classification of financial assets is based both on the company’s business model for managing
financial assets and on their cash flow characteristics. Similarly, the company classifies financial liabilities as subsequently measured
at amortized cost or at fair value through profit or loss. Financial liabilities measured at amortized Appendix II to the appraisal report
on the net worth at book value determined based on the accounting books JUNO Participações e Investimentos S.A. Management’s
notes to the balance sheet As of June 10, 2026 In Brazilian reais, unless otherwise indicated This Annex is an integral and inseparable
part of the the appraisal report on the net worth at book value determined based on the accounting books of TIJOÁ Participações
e Investimentos S.A., issued by TATICCA Auditores e Consultores Ltda. on June 26, 2026. TATICCA 8 | 8 Classification: Public cost are
measured using the effective interest method and are adjusted for any reductions in the settlement amount. The company has not engaged
in transactions with derivative financial instrument , nor has it carried out transactions involving financial instruments of a speculative
nature. 2.7 Property, plant and equipment Property, plant and equipment are recorded at acquisition cost. Depreciation is calculated using
the straight-line method, based on the rates defined in the Electricity Sector Property Control Manual (MCPSE), attached to ANEEL Normative
Resolution No. 674/2015, issued in August 2015. The company recognizes a right-of-use asset and the corresponding lease liability for
contracts involving significant-value assets with terms exceeding 12 months, measured at present value. An item of property, plant and
equipment is derecognized upon disposal or when no future economic benefits are expected from its continued use. Gains and losses on disposals
are determined by comparing the sale proceeds with the carrying amount and are recognized in the statements of income. 2.8 Intangible
assets Intangible assets consist of environmental and social expenditures and software usage rights. Amortization is recognized using
the straight-line method, based on the applicable rates. 2.9 Provisions Provisions are recognized when the company has a present obligation,
whether legal or constructive, as a result of a past event, it is probable that an outflow of resources embodying economic benefits will
be required to settle the obligation, and a reliable estimate of the amount of the obligation can be made. When the company expects all
or part of a provision to be reimbursed, for example under an insurance contract, the reimbursement is recognized as a separate asset,
but only when reimbursement is virtually certain. The expense relating to any provision is presented in the statements of income, net
of any reimbursement. 3. Use of estimates and judgments The preparation of the equity appraisal report requires the management to make
judgments and estimates, and to adopt assumptions that affect the reported amounts of assets and liabilities. This report was prepared
based on various measurement bases used in accounting estimates. The accounting estimates involved in preparing this document were based
on objective and subjective factors, as well as on management’s judgment in determining the appropriate amounts to be recorded.
Appendix II to the appraisal report on the net worth at book value determined based on the accounting books JUNO Participações
e Investimentos S.A. Management’s notes to the balance sheet As of June 10, 2026 In Brazilian reais, unless otherwise indicated
This Annex is an integral and inseparable part of the the appraisal report on the net worth at book value determined based on the accounting
books of TIJOÁ Participações e Investimentos S.A., issued by TATICCA Auditores e Consultores Ltda. on June 26, 2026.
TATICCA 9 | 8 Classification: Public The settlement of transactions involving these estimates may result in amounts that differ significantly
from those originally recorded, due to the inherent uncertainties in the estimation process. The company reviews its estimates at each
reporting date. The main assumptions concerning sources of uncertainty in future estimates and other significant sources of estimation
uncertainty, which involve a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within
the next financial year, are discussed below. 3.1 Taxes Deferred tax assets are recognized for all unused tax losses to the extent that
it is probable that taxable profit will be available against which those losses can be utilized. Significant management judgment is required
to determine the amount of deferred tax assets that can be recognized, based on the probable timing and level of future taxable profit,
together with future tax planning strategies. These losses relate to subsidiaries with a history of losses, do not expire, and cannot
be used to offset taxable profit in another part of the company. The offset of tax loss carryforwards is limited to 30% of taxable income
generated in any given tax year. *** Classification: Public About TATICCA TATICCA is a firm that provides external and internal audit,
tax, consulting, corporate advisory, corporate finance, training, technology, forensics and investigations, sustainability, risk mapping,
accounting, and related services. TATICCA is a member firm of ALLINIAL GLOBAL, a global alliance of independent audit, accounting, and
consulting firms. © 2026 TATICCA. All rights reserved. Certificado de Conclusão Identificação de envelope: FC519902-2EB1-8277-82F7-7BE9CB2C0F29
Status: Concluído Assunto: 01. TIJOÁ - Appraisal report - JUNHO - 2026 - TATICCA Solução: Envelope fonte:
Documentar páginas: 11 Assinaturas: 1 Remetente do envelope: Certificar páginas: 2 Rubrica: 0 Tatiane Ferreira Assinatura
guiada: Ativado Selo com EnvelopeId (ID do envelope): Desativado Fuso horário: (UTC-03:00) Brasília Rua da Quintanda, 196
Rio de Janeiro, Rio de Janeiro 20091-005 tatiane.ferreira.ext@eletrobras.com Endereço IP: 170.85.20.197 Rastreamento de registros
Status: Original 09/07/2026 10:28:55 Portador: Tatiane Ferreira tatiane.ferreira.ext@eletrobras.com Local: DocuSign Eventos do signatário
Assinatura Registro de hora e data Renato Mateus Gonçalves renato.goncalves@taticca.com.br Nível de segurança: E-mail,
Autenticação da conta (Nenhuma) Adoção de assinatura: Estilo pré-selecionado Usando endereço
IP: 2804:30c:4005:6300:3cec:6981:9568:69b8 Enviado: 09/07/2026 10:30:50 Visualizado: 09/07/2026 11:57:01 Assinado: 09/07/2026 11:57:09
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Assinatura Registro de hora e data Eventos de entrega do editor Status Registro de hora e data Evento de entrega do agente Status Registro
de hora e data Eventos de entrega intermediários Status Registro de hora e data Eventos de entrega certificados Status Registro
de hora e data Eventos de cópia Status Registro de hora e data Vinicius Brito da Fonseca vinicius.fonseca@eletrobras.com Nível
de segurança: E-mail, Autenticação da conta (Nenhuma), Entrar com SSO Copiado Enviado: 09/07/2026 10:30:49 Visualizado:
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Carimbo de data/hora Envelope enviado Com hash/criptografado 09/07/2026 10:30:50 Entrega certificada Segurança verificada 09/07/2026
11:57:01 Assinatura concluída Segurança verificada 09/07/2026 11:57:09 Concluído Segurança verificada 09/07/2026
11:57:09 Eventos de pagamento Status Carimbo de data/hora













SIGNATURE
Pursuant to the requirements of the
Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto
duly authorized.
Date: July 23, 2026
| AXIA Energia S.A. |
| |
|
|
| By: |
/S/ Eduardo Haiama
|
|
| |
Eduardo Haiama
Vice-President of Finance and Investor Relations |
|
FORWARD-LOOKING STATEMENTS
This document may contain estimates and projections that are not statements
of past events but reflect our management’s beliefs and expectations and may constitute forward-looking statements under Section
27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. The words “believes”,
“may”, “can”, “estimates”, “continues”, “anticipates”, “intends”,
“expects”, and similar expressions are intended to identify estimates that necessarily involve known and unknown risks and
uncertainties. Known risks and uncertainties include, but are not limited to: general economic, regulatory, political, and business conditions
in Brazil and abroad; fluctuations in interest rates, inflation, and the value of the Brazilian Real; changes in consumer electricity
usage patterns and volumes; competitive conditions; our level of indebtedness; the possibility of receiving payments related to our receivables;
changes in rainfall and water levels in reservoirs used to operate our hydroelectric plants; our financing and capital investment plans;
existing and future government regulations; and other risks described in our annual report and other documents filed with the CVM and
SEC. Estimates and projections refer only to the date they were expressed, and we do not assume any obligation to update any of these
estimates or projections due to new information or future events. Future results of the Company’s operations and initiatives may
differ from current expectations, and investors should not rely solely on the information contained herein. This material contains calculations
that may not reflect precise results due to rounding.