Brazil’s TIM Mobile Network Now Answers to Italy’s State-Backed Post Office
BRAZIL · TELECOMS · COMPANIES
Key Facts
- —The country Brazil, with about 213 million people, is Latin America’s largest mobile phone market. Three operators dominate it: Vivo, Claro and TIM Brasil, which is third.
- —The background TIM Brasil is listed in São Paulo, but about two-thirds of it belongs to Telecom Italia, Italy’s former state phone company. Whoever controls Telecom Italia therefore controls TIM Brasil.
- —Why now Poste Italiane, Italy’s state-controlled postal and savings group, bid for all of Telecom Italia in March. The offer’s last window closed on 25 September.
- —What happened Poste says it will hold about 85.8 percent of Telecom Italia, on provisional results. It became TIM Brasil’s indirect controlling shareholder on 18 September.
- —The numbers Poste expects about €700 million (about US$800 million) a year in pre-tax savings and gains from combining with Telecom Italia. TIM Brasil earned R$4.34 billion (about US$835 million) in 2025.
- —What it means for you No changes have been announced for TIM’s roughly 62 million mobile lines. Minority shareholders in São Paulo should not expect a buyout offer.
- —Still open Poste has not said whether it will keep TIM Brasil for the long term. Final offer results are due on 1 October.
Brazil’s third-largest mobile operator now answers, at the top of the chain, to Italy’s state-controlled post office. Poste Italiane closed its offer for Telecom Italia, TIM Brasil’s parent, on 25 September with about 85.8 percent of it.
Poste does not own TIM Brasil outright: it controls it only indirectly and bought no Brazilian shares. Its focus is a merger at home that it says will yield about €700 million (about US$800 million) a year.

Who owns what
The ownership chain has three links. The Italian state controls Poste Italiane, which runs the country’s post offices and a large savings, insurance and payments business.
Poste now controls Telecom Italia, which trades as TIM in Italy. Telecom Italia in turn owns about 67 percent of TIM S.A., known as TIM Brasil.
That is the figure given by analysts at the Italian broker Equita.
The remaining third of TIM Brasil trades on B3, the São Paulo stock exchange. Those shareholders are untouched by the Italian offer.
How the takeover unfolded
Poste already held about 20 percent of Telecom Italia before it launched its offer in March, according to Corriere della Sera. The bid mixed cash with new Poste shares and valued Telecom Italia at around €13 billion (about US$14.8 billion), g1 reported.
The first acceptance period ended on 11 September with Poste at about 66.6 percent. The shares changed hands on 18 September.
TIM Brasil told the Brazilian market that day that it had a new indirect controller.
The company called it an “original acquisition of control through a public offer”. As a result, it said, Poste became “the indirect controlling shareholder of TIM Brasil”.
A second window ran from 21 to 25 September. On provisional results, Poste will hold 1,832,917,988 Telecom Italia shares, about 85.82 percent of the capital.
Its statement was quoted by the Italian agency Italpress.
Why 90 percent mattered
Poste had hoped for 90 percent. Under Italian law, that threshold would have let it buy out the remaining shareholders compulsorily.
Telecom Italia could then leave the Milan stock exchange quickly.
It fell about four points short. Poste confirmed that the conditions for a compulsory purchase had not been met.
Delisting remains its aim. The Italian telecoms site Key4biz sees two routes: buying the remaining shares on the market, or a merger.
A merger could push the delisting into early 2027.
The €700 million question
Poste estimates the combination will yield about €700 million (about US$800 million) a year before tax, Brazil Journal reported. Around €500 million (about US$570 million) would come from cost cuts, including cheaper debt.
Those are Poste’s projections for its Italian integration, not results, and not savings at TIM Brasil. The combined group would have more than €27 billion (about US$31 billion) in revenue and about 150,000 staff.
For scale, TIM Brasil reported net revenue of R$26.62 billion (about US$5.12 billion) in 2025. Its normalised net profit rose 37.4 percent to R$4.34 billion (about US$835 million).
It ended the year with 61.97 million mobile lines.
Conversions use 25 September rates of US$1.1375 per euro and R$5.1991 per US dollar.
What it means for TIM Brasil
In the short term, little. An analyst told Brazil Journal the real question is the new owner’s “strategic direction” in the medium and long term.
The same analyst asked whether a Brazilian business with no synergies with the Italian operations makes sense for Poste. Key4biz, by contrast, judged a sale unlikely because the Brazilian unit is highly profitable.
For minority investors the key point is narrower. Equita said checks with the company showed Poste has no obligation to extend its offer to TIM Brasil shareholders.
For background, see how the bid first took shape in July and why TIM’s management calls Brazil a jewel of the group.
What comes next
Poste will publish final results of the reopened offer by 7:29 a.m. Italian time on 1 October. Shares tendered in the second window settle on 2 October, Corriere della Sera reported.
The deal does not make TIM Brasil a state company, change its listing in São Paulo or alter customer contracts. Poste has announced no plan to sell, merge or restructure the Brazilian unit.
Frequently Asked Questions
Does Poste Italiane own TIM Brasil outright?
No. Poste controls about 85.8 percent of Telecom Italia, which owns about two-thirds of TIM Brasil. The rest of TIM Brasil’s shares trade on the São Paulo stock exchange.
Will anything change for TIM customers in Brazil?
Nothing has been announced. Plans, prices and contracts stay with TIM S.A., the Brazilian company, which remains the operator and has reported no changes.
Will TIM Brasil shareholders get a buyout offer?
Not on current information. Analysts at Equita said checks with the company showed Poste has no obligation to make a follow-on offer for TIM Brasil’s minority shares.
Who is Poste Italiane?
It is Italy’s national postal operator and one of its largest savings, insurance and payments groups. The Italian state controls it, directly and through its development bank.
Sources: Italpress, Poste statement on provisional results, 25 September 2026, Corriere della Sera, Poste’s offer closes at 85.8 percent, 26 September 2026, Key4biz, delisting postponed, 26 September 2026, Key4biz, TIM Brasil and Equita note, 24 September 2026, Affaritaliani, TIM Brasil’s future, September 2026, g1, Poste becomes TIM Brasil’s indirect controller, 21 September 2026, InfoMoney, TIM Brasil’s new indirect controller, 21 September 2026, Brazil Journal, what changes for TIM Brasil, 21 September 2026, Teletime, TIM’s 2025 results, 10 February 2026, Banco Central do Brasil, PTAX 25 September 2026 (5.1991 reais per US dollar). All retrieved 27 September 2026. TIM S.A. material fact notice of 18 September 2026 as quoted by g1.
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