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: July 22, 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 – 12th 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 Público TIM S.A. Publicly Held Company CNPJ/MF 02.421.421/0001-11 NIRE 333.0032463-1 MINUTES OF THE FISCAL COUNCIL’S
MEETING HELD ON JULY 22nd, 2025 DATE, TIME AND PLACE: July 22nd, 2025, at 10.00 a.m., at the head office of TIM S.A. (“Company”),
domiciled at Avenida João Cabral de Mello Neto, 850, Torre Sul, 13° floor, Barra da Tijuca, in the city and State of Rio de
Janeiro. PRESENCE: Messrs. Walmir Urbano Kesseli, Elias de Matos Brito and Heloisa Belotti Bedicks, regular members of the Company’s
Fiscal Council (“CF”) attended the meeting, either in person or by means of audio or videoconference. Mrs. Fabiane Reschke,
Secretary, also attended the meeting. It is also registered the presence of Mr. Nicandro Durante, Chairman of the Company’s Board
of Directors. AGENDA: Presentation on the payment proposal of the Company’s interest on shareholders’ equity (“IE”).
CLARIFICATIONS AND RESOLUTIONS: Initially, it is noted that the meeting was held jointly with the Statutory Audit Committee (“CAE”)
of the Company, during discussions on the items on the Agenda. Upon the review of the material presented and filed at the Company’s
head office, and based on the information provided and discussions of the subject included on the Agenda, the Fiscal Council members registered
their considerations and discussions as follows: Presentation on the payment proposal of the Company’s interest on shareholders’
equity (“IE”). Messrs. Gustavo Baptista Alves, representative of the Tax Services area, and Victor de Almeida Pinto F. de
Mendonça, representative of the Tax Strategy area, made a brief introduction about the calculation methodology used for the payment
of Interest on Equity ("IE") by the Company and presented the management proposal for the distribution as IE, as follows: (i) the distribution
of profits in the amount of R$320,000,000.00 (three hundred and twenty million reais) at R$0.1323151001 (zero point one, three, two, three,
one, five, one, zero, zero, one cents) of gross value per share; (ii) payment will be made until October 21st, 2025, without the application
of any monetary restatement index; (iii) shall be considered the date July 25th, 2025, to identify the shareholders entitled to receive
such amounts. Therefore, the shares acquired after said date will be traded ex direito of IE distribution; and (iv) The withholding of
Income Tax will be of 15% (fifteen percent) on the occasion of the credit of CONT. OF MINUTES OF THE FISCAL COUNCIL’S MEETING OF
TIM S.A. July 22nd, 2025 2 Classificado como Público the IE, except for the shareholders who have differentiated taxation or who
are exempt from said taxation. The gross amount per share may be modified due to the variation in the number of treasury shares. After
the clarifications provided, the members of the Fiscal Council thanked and expressed in favor of the management proposal. CLOSING: With
no further issues to discuss, the meeting was adjourned, and these minutes drafted as summary, read, approved, and signed by all attendees
CF Members. I herein certify that these minutes are the faithful copy of the original version duly recorded in the respective corporate
book. Rio de Janeiro (RJ), July 22nd, 2025. FABIANE RESCHKE Secretary Classificado como Uso Interno TIM S.A. Publicly Held Company CNPJ/MF
02.421.421/0001-11 NIRE 333.0032463-1 FISCAL COUNCIL’S OPINION The Members of the Fiscal Council of TIM S.A. ("Company"), in the
exercise of their attributions and legal duties, as provided in Article 163 of the Brazilian Corporate Law, based on the information provided
and the clarifications received by the Company's management, expressed their favorable opinion on the presentation, to the Board of Directors
of the Company, of the proposal for the distribution as Interest on Shareholders’ Equity in the amount of R$320,000,000.00 (three
hundred and twenty million reais) at R$0.1323151001 (zero point one, three, two, three, one, five, one, zero, zero, one cents) of gross
value per share, for payment to be made until October 21st, 2025, without the application of any monetary restatement index, considering
the date of July 25th, 2025, to identify the shareholders entitled to receive such amounts. Rio de Janeiro, July 22nd, 2025. WALMIR URBANO
KESSELI Chairman of the Fiscal Council ELIAS DE MATOS BRITO Member of the Fiscal Council HELOISA BELOTTI BEDICKS Member of the Fiscal
Council
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.
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TIM S.A. |
Date:
July 22, 2025 |
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By: |
/s/ Alberto
Mario Griselli |
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Alberto
Mario Griselli |
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Chief
Executive Officer, Chief Financial Officer and Investor Relations Officer |