TIM S.A. (NYSE: TIMB) taps IHS Brasil to build up to 3,000 towers

Rhea-AI Filing Summary

TIM S.A. reported a new partnership with IHS Brasil to expand its tower infrastructure in Brazil. The agreement covers the construction and operation of telecommunications towers under the MAKE model, with plans to build up to 3,000 sites and an initial minimum rollout of 500 sites.

The new sites will support both consumer and business services and are expected to be important for IoT projects in areas such as agribusiness and highways. TIM describes this initiative as part of its Lease Efficiency Plan, aiming for financial gains through lower lease expenses while having no material impact on its investment plan. The company also notes that the partnership should help accelerate its mobile coverage evolution, strengthen its B2B segment, and improve mobile service quality.

Insights

Telecom infrastructure analyst

TIM adds up to 3,000 towers via partner to support IoT and B2B growth.

TIM S.A. is deepening its relationship with IHS Brasil through a partnership to construct and operate up to 3,000 tower sites under the MAKE model, with a minimum initial deployment of 500. This provides additional network capacity without TIM directly shouldering full ownership and operational complexity.

The company frames the deal as part of its Lease Efficiency Plan, explicitly expecting financial gains in lease expenses while indicating no material impact on its capex plan. That suggests a shift in how access costs are structured rather than a step-up in overall investment. The sites target both B2C and B2B traffic and highlight IoT verticals such as agribusiness and highways.

Strategically, TIM links IHS Brasil’s know-how to accelerating its mobile coverage evolution, strengthening B2B, and improving service quality. Future updates on other MAKE initiatives, infrastructure sharing, and tower contract renegotiations under the Efficiency Plan may clarify how extensively this approach reshapes its cost base and network footprint.

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: October 7, 2025

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 ☒

 

TIM S.A.

Publicly-held company

CNPJ/ME 02.421.421/0001-11

NIRE 33.300.324.631

Notice to the Market

Partnership between TIM and IHS Brasil for Tower Infrastructure Expansion

TIM S.A. (“TIM” or “Company”) (B3: TIMS3; NYSE: TIMB), in accordance with Article 157 of Law No. 6,404 and the provisions of CVM Resolution No. 44/21, hereby informs its shareholders, the market in general, and other interested parties that it has entered into a partnership with IHS Brasil – Cessão de Infraestruturas Ltda. (“IHS Brasil”) for the construction and operation of telecommunications towers (“sites”).

The partnership aims to build up to 3,000 units under the MAKE¹ model, with an initial minimum deployment of 500 sites. The sites will be distributed across various regions of the country and may be used for both B2C and B2B operations, especially in IoT (Internet of Things) projects in verticals such as agribusiness and highways.

TIM and IHS Brasil already collaborate in other business areas. However, this partnership establishes innovative methods for tower construction and is one of the initiatives under TIM’s Lease Efficiency Plan (“Efficiency Plan”), which has been previously disclosed to the market.

IHS Brasil’s know-how will support TIM by accelerating the restructuring of its mobile coverage evolution strategy, strengthening the development of the B2B segment, and improving the quality of mobile service. Financial gains are expected in lease expenses, with no material impact on TIM’s investment plan (capex).

The Company will keep its shareholders and the market in general informed, pursuant to CVM Resolution No. 44 and applicable legislation, regarding relevant updates related to the Efficiency Plan, which still includes (i) other MAKE model initiatives, (ii) the evolution of the infrastructure sharing project, and (iii) the renegotiation of contracts for towers already deployed.

Rio de Janeiro, October 7, 2025.

TIM S.A.

Vicente de Moraes Ferreira

Diretor de Relações com Investidores

¹ The MAKE model refers to the construction of one's own sites with or without the help of third parties/partners in the process.

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: October 7, 2025		By:	/s/ Alberto Mario Griselli
			Alberto Mario Griselli
			Chief Executive Officer, Chief Financial Officer and Investor Relations Officer

FAQ

What partnership did TIM S.A. (TIMB) announce with IHS Brasil?

TIM S.A. announced a partnership with IHS Brasil for the construction and operation of telecommunications towers, referred to as "sites", across Brazil.

How many tower sites are planned under the TIM S.A. and IHS Brasil agreement?

The partnership aims to build up to 3,000 tower sites under the MAKE model, with an initial minimum deployment of 500 sites.

What is the purpose of the new tower sites for TIMB?

The new sites are intended to serve both B2C and B2B operations, with a particular focus on IoT projects in verticals such as agribusiness and highways.

How does this tower partnership fit into TIM S.A.’s Lease Efficiency Plan?

TIM identifies the partnership as one of the initiatives under its Lease Efficiency Plan, targeting financial gains in lease expenses while keeping its investment plan (capex) materially unchanged.

What financial impact does TIM S.A. expect from the IHS Brasil partnership?

TIM expects financial gains in lease expenses from the partnership and states that there will be no material impact on its investment plan (capex).

How will the partnership with IHS Brasil affect TIM S.A.’s network strategy?

TIM states that IHS Brasil’s know-how will help accelerate the evolution of its mobile coverage strategy, strengthen its B2B segment, and improve mobile service quality.

What other initiatives are included in TIM S.A.’s Efficiency Plan besides this tower deal?

The Efficiency Plan also includes (i) other MAKE model initiatives, (ii) the evolution of the infrastructure sharing project, and (iii) the renegotiation of contracts for towers already deployed.