TIM S A : NOTICE TO THE MARKET TIM CONFIRMED FOR THE 16TH CONSECUTIVE YEAR IN THE ISE PORTFOLIO - Form 6-K

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: December 27, 2023

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

Corporate Taxpayer's ID (CNPJ / MF) 02.421.421/0001-11

Corporate Registry (NIRE) 33.300.324.631

NOTICE TO THE MARKET

TIM CONFIRMED FOR THE 16^TH CONSECUTIVE YEAR IN THE ISE PORTFOLIO

TIM S.A. ("TIM" or "Companhia") (B3: TIMS3; NYSE: TIMB) communicates to its shareholders and the market in general that, for the 16th consecutive year, it remained in the select group of companies that make up B3's Corporate Sustainability Index - ISE. The new portfolio brings together 78 companies belonging to 36 sectors and will be in effect from January 2, 2024.

TIM is the company in the telecommunications sector that has remained in the ISE portfolio for the most consecutive years, reaffirming its commitment to the continuous management of social, environmental and governance aspects, creating value for its shareholders and other stakeholders.

Rio de Janeiro, December 27th, 2023.

TIM S.A.

Alberto Mario Griselli

Chief Executive Officer and

Investor Relations Officer

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: December 27, 2023		By:	/s/ Alberto Mario Griselli
			Alberto Mario Griselli
			Chief Executive Officer, Chief Financial Officer and Investor Relations Officer