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 23, 2021

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 ☒

MATERIAL FACT

STRATEGIC PLAN 2021-2023 AND GUIDANCE RELEASE

TIM S.A. (“Company” or “TIM) (B3: TIMS3; NYSE: TIMB), in compliance with Article 157 of Law No 6,404 and the provisions of CVM Instruction N. 358, hereby informs its shareholders, the market in general and other interested parties that Telecom Italia Group released today its forecasts for 2021-2023 period. In this context, TIM updates the forecasts of its Strategic Plan 2020-2022, released to the market through a Material Fact dated March 10^th, 2020.

Despite a challenging year, due to the pandemic of the COVID-19, with major impacts on public health and the economy, the Company proved to be antifragile, reinvented itself and presented solid results at the end of 2020, fulfilling part of the short-term goals outlined in its 2020-2022 Strategic Plan, which demonstrates the focus on execution, with agility in decision making, prioritization and digital courage were crucial in this context different from that projected by TIM and the market in general.

The Company also discloses long-term goals in its projections and, for the EBITDA Margin and EBITDA - CAPEX over Net Revenue, it exceeded the targets established for the year 2022 (respectively ≥ 47% and ≥20%), reaching a EBITDA margin of 48.5% and EBITDA - CAPEX over Net Revenue of 25.9%, in 2020.

For this new triennium, despite a challenging 2020, TIM reaffirms its commitment with (i) the sustainable evolution of Service Revenue, resulting from the search for new service lines, maintaining its mid-single digit growth estimate for the current year (ii) the improvement of its profitability, with mid-single digit growth of EBITDA, even with the preparation costs related to the incorporation of Oi's mobile assets; (iii) an efficient capital allocation, characterized by the CAPEX destination to digitization, automation and new operational models, as well infrastructure (network and IT) extension and modernization projects, and (iv) the continuous expansion of the cash generation characterized by the growth of EBITDA – CAPEX over Revenues indicator to reach the level of 24%.

Additionally, TIM points out that it presents, for long-term objectives, a vision considering the continuity of its operation with the impacts of the incorporation of Oi SA's mobile assets, still pending approval by regulatory bodies, according to the Material Facts of January 29^th, 2021 and December 14^th, 2020, as well as a view disregarding the effects of this merger.

Lastly, TIM presents, as an attachment to this Material Fact, additional details about the 2021-2023 Strategic Plan and its guidance.

Rio de Janeiro, February 23^rd, 2021.

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.