UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

Date of Report: February 2425, 2026

Commission File Number: 001-39570

TIM S.A.
(Exact name of Registrant as specified in its Charter)

João Cabral de Melo Neto Avenue, 850 – North Tower – 12^th floor
22775-057 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 of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1).

Yes ☐ No ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7).

Yes ☐ No ☒

Classificado como Uso Interno 1 February, 2026 STRATEGIC PLAN AND GUIDANCE 2026 February 2026 Classificado como Uso Interno 2 Our Strategic Plan is built around six key initiatives designed to maximize the conversion of revenue into cash ESG: a foundational pillar of our strategy, fully integrated across the entire Company Consolidate our leadership in Latin America, generating value for People, Society, and the Environment Inter -organizational AI Transformation Elevate AI adoption to a truly transformative level by becoming an AI-First organization B2B: Accelerating on a new growth path Accelerate the adoption of “Network as a Service” while expanding our portfolio of IoT solutions and technology offerings. Restructure the operating model to enable scalability. Accelerate revenue from data -monetization initiatives. Broadband: Sustainable growth with optionality for the future Drive operational improvement to support sustained organic growth. Maintain optionality to accelerate broadband expansion as the market evolves. Mobile: A customer-first approach drives profitability Ensure competitiveness across all segments through advanced customer-base management, anchored on three pillars: • Best Network: Continuous enhancement of quality and customer experience • Best Service: Leveraging AI to accelerate the transformation of customer care • Best Offering: Value-driven innovation to support portfolio evolution Reorient the partnership model to accelerate revenue and expand the customer base. Efficiency as a driver of value creation Consistent discipline combined with strategic capital allocation, fueling new growth avenues TIM Brasil Industrial Plan 2026-28 3 Mobile | Ensure competitiveness across all segments by following our 3Bs strategy: Best Network, Best Offer, and Best Service Strategic Target Levers Key Dimensions Network  Excellence: Promote competitive leadership in network coverage, quality and availability.  Perception: Enhance perceived quality by leveraging 5G. Maintaining leadership through smart capital allocation Customer Service  Lifecycle Management: Leverage Agentic AI to transform customer service into customer relationship management. Redesigning the customer service journey with AI at the core Brand  Go Big Go Hacker: Optimize ROI through hyper-personalization and a proprietary content-creator platform, while investing in major events and campaigns. Offer  Differentiation and Perception: Continue evolving the offering by consolidating innovation fronts beyond entertainment and the core portfolio. Channel Shift in perception and efficiency Differentiation and innovation in the pursuit of leadership Increase productivity and conversion across sales channels BEST SERVICE BEST OFFER BEST NETWORK  Combined sales-channel strategy: Selective expansion of physical channels coupled with a strategy to strengthen digital and remote channels. TIM Brasil Industrial Plan 2026-28 4 Mobile| 3Bs Strategy: Key Initiatives for 2026 Fonte: TIM’s Technology Development internal data; OpensignalMobile Network Experience Report –Brazil, Jan/26; Anatel BEST NETWORK  Investments in mid-sized cities Compliance & Regulatory Affairs • Contracts signed with Nokia and Huawei • Swap of 6,500 4G/5G sites across 15 state capitals and metropolitan areas through 2027 • ~12 million customers benefited • +38% increase in 5G coverage • +40% improvement in capacity Network Modernization Network Quality  5G off-load to high-utilization 4G sites  Investments to expand coverage in priority markets Coverage Expansion BEST OFFER Rock in Rio Sponsorship We will remain one of the event’s main sponsors BBB SponsorshipWe are the telco sponsor of Big Brother Brasil (BBB), generating strong engagement across social media 20+ offering initiatives currently in development… Streaming VIP Experience with Priority Traffic Devices and Accessories GenAI Fintech ...and muchmore! BrasileirãoSérie ATIM will sponsor the soccer games broadcast on TV Record (LFU) Engaging with the Brazilian Consumer New Products and Services IVR AI Companion Call center WhatsApp Site “Meu TIM” APP Driving a new era of intelligent customer engagement The AI Companion anticipates customer needs and delivers simple, intelligent human experiences to enhance our service and customer satisfaction. BEST SERVICE TIM Brasil Industrial Plan 2026-28 5 Broadband | In a market that requires consolidation, we are strengthening our operations while preparing for the future Operational fundamentals • Organic growth and churn control, supported by operational improvements • Explore pockets of growth opportunity • Complementary coverage via FWA/Satellite Operational improvement for organic growth Enablers • Improvement in pricing dynamics, even if regionally • Improvement in churn dynamics • Assessment of the impact of convergence on mobile • Assessment of value potential versus complexity Optionality for inorganic moves Impact of the I-System acquisition • Improvements in operational discipline, performance monitoring, and decision-making • +9 MlnHPs (homes passed) • Better end-to-end customer experience • Enabler for potential future inorganic moves (M&As) Opportunities with asset insourcing Classificado como Uso Interno TIM Brasil Industrial Plan 2026-28 6 B2B | Accelerating a new path of growth Accelerating development with a focus on the present Imagining and building the future WE CONNECT WE DIGITIZE WE MAKE IT SMART WE GENERATE VALUE WITH DATA AND AI • Technological modernization•Data, governance, and analytics•Application development•AI applied to business•Managed Services • Industry-specific AI models•Edge Processing•Real-time decisions•Intelligent and secure automation • Multi-industry data platform•Integration with ERP and ecosystems•AI to redesign processes•Monetize data•Smart Decision for CXOs • Reliable, nationwide connectivity•Real-time data•Automation and monitoring•IoT solutions by industry Leader in IoT Tech company Edge computing with SLMs Data & AI company Classificado como Uso Interno 7 AI | Elevate AI adoption to a transformative level by becoming an AI-First organization Domain What we built Ambition for 2026 Artificial Intelligence becomes a cross-cutting imperative, guiding strategic priorities, decisions, and execution across the organization Network • Intelligent maintenance (predictive and preventive)•TCO¹ Optimization•Smart Capex • Zero Touch Network•Automatic Troubleshooting•Optimizationofenergy consumption Customer Service • Cognitive IVR•Speech Analytics•Realtime Transcription Support Functions B2C Legal Examples • Processes with MS Copilot•Special Handling² Automation • Processes 100% powered or assisted by AI in support functions Use Cases How we will scale • Expanding the use case portfolio•Leveraged marketsolutions •Strengthening the database and structures • Redesigning the entire client journey under a new philosophy of Agentic AI•Prioritizing smarter interactions and minimizing human interaction • Progressing with structured change management and a new governance model•Supporting AIadoptionacross the company • AIagentsthroughout the customer journey (e.g. sales, accounts, billing, plans) •AICompanion(digital companion with customized solutions) 1. Total Cost Ownership; 2. AI applied to data collection for legal analysis. Classificado como Uso Interno TIM Brasil Industrial Plan 2026-28 8 Efficiency | Consistent discipline, combined with strategic capital allocation and fueling new growth fronts •Digitalization and expansion of AI adoption•Organizational simplification•Make or buy initiatives•Cost discipline •Renegotiation of tower contracts (e.g. American Tower)•Expansion of RANsharing•Tower space optimization initiatives •Renegotiation of payment terms•Efficient accounts payable management•Inventory Control •Implementing AI in the network domain•Capital network replacement (SWAP)•Traffic offload to 5G•Network efficiency Working Capital OPEX LEASE CAPEX OpCF(R$ Mlnand% YoY) 5.2 6.0 2024 2025 1.OperatingCashFlow("OpCF")representsEBITDA-ALminusCapEx Financial discipline supports robust operating cash flow expansion¹ Efficiency will continue to be central to value creation in the coming years 15.7% Efficiency Levers Classificado como Uso Interno TIM Brasil Industrial Plan 2026-28 9 ESG| Consolidate our leadership in Latin America, generating value for People, Society and the Environment Results and recognitions Pillars Environment Towards the ambitious net zero target • 99.7% of solidwasterecycled or reused•14.6tons of e-waste recovered in 2025 (98% recycled) • 3rdconsecutive year on CDP ClimateChangeA-List•Recognized as a Leader in Supplier Engagement Renewable energy and eco-efficiency • 100% electricity fromrenewable sources•+129% energy efficiency in data traffic (2025 vs 2019) Waste Emissions • Maintain the decarbonization and eco-efficiency pathway • Maintain 100% renewable electricity • Maintain the reuse and recycling of solid waste People & SocietyFostering an inclusive and appreciative culture • Year 5 as the world's most inclusive telco (FTSE Russell Index) • GPTW Brazil certification for the 4th time and GPTW Latin America for the first time•Digital Wave Program Training New Capabilities • 26 Mlnhectares covered with 4G network in rural areas•1stoperator in the country to reach 100% of the neighborhoods of the 27 capitals connected to 5G • Maintain employee engagementand increase inclusionin leadership•Upskillemployees in digitalcapabilities•Expanding connectedhectaresin rural areas Diversity and Inclusion Engagement and Training Digital Inclusion GovernanceOngoing engagement with all stakeholders • The only telco recognized in all B3 sustainability indexes •Most sustainable company in Brazil by ISE B3 (May-Aug 2025 • International Standard •ISO 27001 certified since 2022 in information security management • 1stTelcoto obtain recognition as a Pro-EthicsCompany(CGU), maintained since 2019 • Maintain transparencyand anti-corruptionpractices and standards•Maintain cybersecurity and data protectionpractices and standards•Maintain ESGIndices and Ratings Transparency and ESG Indexes Cybersec. and Data Protection Anti-Corruption Practices and Ethics Commitments 26-28 Classificado como Uso Interno TIM Brasil Industrial Plan 2026-28 10 2026 Guidance | Focus on sustainable growth with an efficient and targeted approach to cash generation and shareholder returns (1)Normalizednumbers;(2)Investmentsexcludeanypotentialnewspectrumassignments;(3)Totalshareholderreturnincludinganyshareholderremunerationeventsrelatedtothe2026fiscalyear.ThisguidanceissubjecttotheperformanceofthebusinessandtheresolutionoftheBoardofDirectorsandtheGeneralShareholders'Meeting;(4)ExpectationsdonottakeintoaccountM&Atransactionsthathavenotbeen100%finalized. Revenue EBITDA Capex Cash Flow Shareholders remuneration³ Service Revenue Growth¹: ~5% (YoY) EBITDA Growth¹:6% –8% (YoY) Nominal Capex²: R$ 4.4 Bln –R$ 4.6 Bln EBITDA-AL Minus Capex1,2Growth: 11% –14% (YoY) R$ 5.3 Bln –R$ 5.5 Bln GOALS SHORT-TERM TARGETS (2026) DRIVERS Real growth, with sustainable dynamics in mobile, recovery of fixed and the development of new sources of revenue Efficiency across opex lines through discipline, digitalization, and the realization of AI-driven gains Efficient capital allocation, with a focus on differentiated quality and technological evolution Advancing the revenue-to-cash conversion engine with a holistic approach to efficiency Expansion of shareholder returns at a fast pace and compatible with cash flow growthSUMMARY

1.	Message from Management	1
2.	Shareholders’ Meeting date, time, agenda and local	2
3.	Information on the matters to be resolved	3
4.	General Information	9
5.	Participation Guidelines	10
6.	Links of Interest	12

1. Message from Management

Dear Shareholder,

TIM S.A. ("Company" or "TIM") reinforces its commitment to the best corporate governance practices, ethics, and professionalism of its management and works to offer direct, clear and objective communication with its shareholders and the market in general.

The performance of the Company and its managers is guided by the principles of transparency, integrity, ethics and corporate responsibility, which guide the conduct of business, the relationship with stakeholders and the disclosure of reliable and timely information to the market, in compliance with the guidelines of the Company's Code of Ethics and Conduct.

We highlight that TIM is the longest-serving company in the telecommunications sector listed in the special segment of B3's Novo Mercado, recognized as the highest standard of corporate governance.

Among the practices adopted by the Company, the exclusive trading of common shares with voting rights, the maintenance of a Fiscal Council in permanent operation and a Statutory Audit Committee, in addition to other advisory committees, as well as the granting of 100% Tag Along to shareholders, stand out.

The effective participation of shareholders in this Meeting is an opportunity to discuss and vote on matters brought to deliberation, in view of the information disclosed for conscious decision-making.

In this sense, in order to facilitate and encourage the participation of its shareholders and reinforcing the commitment to foster the best corporate governance practices, the Company will adopt the remote voting system established by CVM Resolution No. 81/2022, as amended. The guidelines for voting by means of the remote voting ballot are detailed throughout this document.

The purpose of this Manual is to present, in a clear and precise manner, all information related to the Company's Annual and Extraordinary General Meeting, with details of the proposals to be analyzed and instructions for the participation of shareholders in said Meeting.

Thus, we are pleased to invite you to participate in the Annual and Extraordinary General Meeting of TIM S.A., which will be held on March 31, 2026, at 2:30 p.m., at Avenida João Cabral de Melo Neto, 850, Torre Sul, 13th floor, Barra da Tijuca, in the city and state of Rio de Janeiro.

Cordially,

The Administration

2. Shareholders’ Meeting date, time, agenda and place

Date and Time

The Annual and Extraordinary General Meeting will be held on March 31, 2026, at 2:30 pm.

Interested parties are recommended to present themselves at the site 30 (thirty) minutes before the indicated time.

Agenda

2:00 p.m.:	Shareholders’ access will be granted and attendants accredited
2:30 p.m.:	Beginning of the Shareholders’ Meeting
4:30 p.m.:	Forecast for the Shareholders’ Meeting closure*

* Estimated closure time based upon the historical times of previous Meetings, subject to changes.

Local

TIM S.A. - Avenida João Cabral de Mello Neto, nº 850 South Tower, 13th floor, Barra da Tijuca, Rio de Janeiro (RJ).

Access to the meeting will be through the Company's social entrance.

3. Information on the matters subject to deliberation

On Annual Shareholders’ Meeting:

(1) To resolve on the management report and the Company's financial statements, for the year ended December 31, 2025;

In compliance with the CIRCULAR/ANNUAL LETTER-2024- CVM/SEP, and the determinations of CVM Resolution No. 81/2022, TIM S.A. informs that the Opinion of the Fiscal Council, filed in the category "Management Meeting", type "Fiscal Council", type "Minutes", subject "Opinion on the Financial Statements", is available on the website of the Brazilian Securities and Exchange Commission – CVM.

In addition, the Financial Statements, the Independent Auditors' Opinion and the DFP Form, related to the 2025 fiscal year, are available on the website of the Brazilian Securities and Exchange Commission (CVM), and on the Company's Investor Relations website, at the following electronic addresses:

www.cvm.gov.br

www.sec.gov

ri.tim.com.br/

(2) To resolve on the management's proposal for the allocation of the results for the year 2025 and the distribution of dividends of the Company;

The net income recorded by the Company in the 2025 fiscal year was R$ 4,311,984,064.94 (four billion, three hundred and eleven million, nine hundred and eighty-four thousand, sixty-four reais and ninety-four cents).

The Administration proposes its allocation as follows:

Total dividends and interest on equity (gross):

% Net income for the year distributed:

R$ 4,000,000,000.00

92,76%

(3) To ratify the appointment of a member of the Company's Board of Directors, previously held at the meetings of the Board of Directors held on November 3, 2025 and February 25, 2026;

The Company's Management proposes the ratification of the appointment of the member of the Board of Directors below:

Candidate	Independence	Appointment
Denísio Augusto Liberato Delfino	Yes	03/11/2025
Camillo Greco	No	25/02/2026

(4) To resolve on the composition of the Company's Fiscal Council;

The Company's Management proposes the composition of the Fiscal Council with three (3) sitting members and three (3) alternate members.

(5) Electing the effective and alternate members of the Company's Fiscal Council; and

The Management indicates the single group of candidates bellow to compose the Fiscal Council with mandate until the Annual Shareholders’ Meeting which approve the Financial Statements of the fiscal year ended in December 31st, 2026:

Candidate	Effective/Alternate	Independence	Elected by the Controller
Ana Gati	Effective	Independent	Yes
Carlos Eduardo Nascimento	Alternate	Independent	Yes
Gustavo Raldi Tancini	Alternate	Independent	Yes
Heloisa Bedicks	Effective	Independent	Yes
Isaac Berensztejn	Alternate	Independent	Yes
Walmir Kesseli	Effective	Independent	Yes

Pursuant to article 161, paragraph 4, of Law No. 6,404/76, if shareholders who meet the legal requirements for the exercise of separate voting in the election of members of the Fiscal Council are present at the Meeting, such right will be ensured, with the holding of a specific vote, if applicable.

(6) To resolve on the proposal for the remuneration of the Company's management, members of the Committees and members of the Fiscal Council, for the year 2026.

The Company's Management proposes to set the compensation of the managers, to be paid during the fiscal year of 2026, in the amounts* presented below:

Organ	Value:
Board of Directors	R$ 4,860,000.00
Fiscal Council	R$ 702,000.00
Statutory Board of Directors	R$ 47,498,000.00
Committees	R$ 3,024,000.00

*Values exclude charges arising from social security contributions (INSS).

On Extraordinary Shareholders’ Meeting:

(1) To resolve the proposal for the extension of the Cooperation and Support Agreement, through the execution of the 19th amendment to this agreement, to be entered into between Telecom Italia S.p.A., on the one hand, and the Company, on the other hand:

The Company's Management proposes the approval of the 19th Amendment to the Cooperation and Support Agreement with Telecom Italia S.p.A., which has as its main benefits the following aspects:

Support to align the approach to compliance adopted at the level of the TIM Group, through the strengthening of governance and the culture of compliance, the transfer of methodologies, tools and best practices, including the development of compliance;

International regulatory support via the Cullen database, with continuous monitoring of regulatory and competition issues in telecom, including 5G, consumer and infrastructure sharing.

Support to TIM in Brazil on issues related to Ultra Broadband networks, with regard to the technologies implemented and creation of services;

Platform with Fast Recovery solution for critical applications and an ERV (Electronic Remote Vaulting) solution to manage database copies in remote data centers or in the cloud, ensuring extremely fast recovery times;

Support from TIM Brasil in the development of the wholesale roaming business;

Support to systems for provisioning mobile services, for network solutions and creating services for fixed broadband products.

Development and maintenance of test automation for the postpaid environment;

Use of SCTR, a system developed by TIM Italia for interconnection.

(2) To resolve on the amendment and consolidation of the Company's Bylaws.

The Company's Management proposes to amend Article 5, caput, of the Company's Bylaws to reflect the new value of its capital stock as a result of the cancellation of shares approved by its Board of Directors on December 16, 2025, according to the Material Fact disclosed on the same date.

4. General Information

Annual Shareholders’ Meetting

Pursuant to Section 132 of Law No. 6,404/1976 (“Corporate Law”), stock companies must hold a General Shareholders' Meeting annually within a period of four months after the end of the fiscal year. The fiscal year of TIM S.A. starts on January 1 and ends on December 31 of each year. Thus, annually, the Company must hold the Annual Shareholders' Meeting by April 30.

Installation Quorum

As provided for in Article 125 of the Brazilian Corporation Law, for the installation of the Annual General Meeting and the Extraordinary General Meeting, the presence of shareholders representing at least 1/4 (one quarter) of the Company's capital stock will be required, on first call.

If this quorum is not reached, the Company will publish a new Call Notice announcing the new date for the holding of the Shareholders' Meeting on second call, which may be installed with the presence of any number of shareholders. The participation of shareholders may be in person, by a duly constituted attorney-in-fact or by sending a remote voting ballot, pursuant to CVM Resolution No. 81/2022.

Support Material

All documents and information relevant to the matters to be examined and resolved at the Annual and Extraordinary Shareholders' Meeting are available to the Shareholders at the Company's headquarters, as well as at the following electronic addresses: https://ri.tim.com.br/, www.cvm.gov.br, www.b3.com.br and www.sec.gov.

5. Participation Guidelines

The Shareholder's participation may be in person or by a duly constituted attorney-in-fact, as provided for in Article 126 of the Brazilian Corporation Law and in paragraphs 1 and 2 of Article 12 of the Company's Bylaws, as well as via remote voting ballot, with the guidelines detailed below:

Face-to-face: The Shareholder who chooses to participate in person must express his intention by sending, by e-mail to ri@timbrasil.com.br, a copy of the document proving his identity (identity card and CPF), within two (2) business days before the Meeting;

II.

By representation: The Shareholder to be represented at the Shareholders' Meeting must send, by e-mail to ri@timbrasil.com.br, within two (2) business days prior to its holding the respective supporting documentation:

Individual:

(i)

Power of attorney with specific powers, signed in one's own hand, with a notarized signature, or electronically, using ICP-Brasil certification; e

(ii)

Identity card and CPF of the attorney.

Legal Entity:

(i)

Power of attorney with specific powers, signed in one's own hand, with a notarized signature, or electronically, using ICP-Brasil certification;

(ii)

Latest bylaws or consolidated articles of association and corporate acts that prove the legal representation of the legal entity shareholder or, if an investment fund, the bylaws or consolidated articles of association of its administrator or manager, as the case may be, the corporate documents that prove the powers of representation of the administrator or manager and the current regulations of the investment fund; e

(iii)

Identity card and CPF of the attorney.

Representative of Legal Entity Shareholder/Investment Fund:

(i)

(ii)

Identity card and CPF of the legal representative.

III.

Distance Voting Form: Shareholders who, pursuant to CVM Resolution No. 81/2022, choose to exercise their voting rights through the Distance Voting Form, may choose to send the Distance Voting Form through the following channels:

Through service providers (custodians): The Shareholder shall transmit its voting instructions to the respective custody agents, subject to the rules and procedures established by them. The custody agents, in turn, will forward the voting instructions to the Central Depository of B3, as applicable. To this end, shareholders must contact their custody agents or the B3 Central Depository, in order to verify the procedures for issuing voting instructions via the ballot, as well as the documents and information required by them for this purpose.

ii.

Through the bookkeeping institution of the Company's shares: The Shareholder must go to any branch of Banco Bradesco, with an identification document or legal representation.

The list of available agencies can be found on the website www.bradesco.com.br

Bradesco's Shares and Custody Department is available to shareholders for further clarification and assistance through the channels indicated below:

Email: bcsf.escrituracao@bradesco.com.br

Phone: 0800 701 1616

iii.

Directly to the Company: The shareholder who chooses to send the Distance Voting Ballot directly to the Company must forward the ballot duly completed, initialed and signed, accompanied by the documentation indicated below, as the case may be, and simple copies of the documents are allowed, except for the form of signature of the ballot paper:

Individual shareholder: official identification document with photo;

Legal entity shareholder: official identification document with photo of the legal representative(s), latest consolidated Bylaws or Articles of Association and documents proving the powers of representation (minutes of election and/or power of attorney);

Investment funds: official identification document with photo of the legal representative(s) of the administrator or manager, as the case may be, the fund's last consolidated regulation, the administrator's Bylaws or Articles of Association and documents proving the powers of representation (minutes of election and/or power of attorney).

The bulletin must be signed: (a) digitally, with an ICPBrasil certificate, when sent electronically; or (b) physically, with notarization, when sent physically.

The shareholder who chooses to send the ballot paper directly to the Company may do so: (i) by electronic means, by sending the ballot paper and the applicable documentation to the address ri@timbrasil.com.br; or (ii) by physical means, by sending it to the following address: TIM S.A., to the attention of the Investor Relations Officer, Mr. Vicente de Moraes Ferreira, Avenida João Cabral de Mello Neto, nº 850, Torre Sul, 10th floor, Barra da Tijuca, City and State of Rio de Janeiro.

Once the referred documents are received directly by the Company, the Company will notify the shareholder of their receipt and acceptance or not, pursuant to CVM Resolution No. 81/2022, as amended.

Except for the exception provided for in CVM Resolution No. 81/2022, if there is a discrepancy between any remote voting ballot received directly by the Company and the voting instruction contained in the consolidated voting map sent by the central depositary in relation to the same CPF or CNPJ registration number, the voting instruction contained in the voting map will prevail, and the bulletin received directly by the Company must be disregarded.

In any case, the Distance Voting Ballot must be received within four (4) days before the General Meeting, that is, by March 27, 2026.

6. Links of Interest

INVESTOR RELATIONS WEBSITE:

https://ri.tim.com.br/

FINANCIAL STATEMENTS AND INDEPENDENT AUDITORS' REPORT ON THE FINANCIAL STATEMENTS:

www.cvm.gov.br

www.sec.gov

https://ri.tim.com.br/

CALL NOTICE:

www.cvm.gov.br

www.sec.gov

https://ri.tim.com.br/

MANAGEMENT PROPOSAL:

www.cvm.gov.br

www.sec.gov

https://ri.tim.com.br/

SIGNATURES

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.

	TIM S.A.
Date: February 24, 2026	By:	/s/ Alberto Mario Griselli
Date: February 25, 2026	By:	/s/ Alberto Mario Griselli
		Alberto Mario Griselli
		Chief Executive Officer, Chief Financial Officer and Investor Relations Officer

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