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v3.25.1

Events after the reporting period - Additional Information (Detail) R$ in Thousands, $ in Thousands |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 16, 2025 BRL (R$) | Apr. 10, 2025 BRL (R$) | Apr. 04, 2025 BRL (R$) | Mar. 31, 2025 BRL (R$) | Feb. 14, 2025 BRL (R$) | Feb. 06, 2025 BRL (R$) | Apr. 19, 2023 BRL (R$) | Dec. 31, 2024 | Apr. 18, 2025 shares | Apr. 04, 2025 USD ($) | Feb. 26, 2025 shares | Feb. 14, 2025 USD ($)
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  |  |  |  | CDI rate + 0.5% p.a. |  |  |  |
Increase in Company's capital |  |  |  |  |  |  | R$ 1,450,000 |  |  |  |  |
Major borrowings [member] | Ipiranga [member] | Foreign loans [member] |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  | R$ 500,000 |  |  |  |  |  |  | $ 86,956 |  |
Index/Currency |  |  | USD |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  | 4.0154% |  |  |  |  |  |  | 4.0154% |  |
Borrowings, maturity |  |  | April 2, 2026 |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  | 103.80% |  |  |  |  |  |  | 103.80% |  |
Borrowings, interest rate basis |  |  | DI |  |  |  |  |  |  |  |  |
Prepayment of trade related debt |  |  | R$ 500,000 |  |  |  |  |  |  |  |  |
Major borrowings [member] | Ultracargo Logística S.A. | Northeast region constitutional fund |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  | R$ 106,430 |  |  |  | R$ 100,976 |  |  |  |  |  |
Index/Currency |  | IPCA |  |  |  |  |  |  |  |  |  |
Borrowings, interest rate |  | 3.15% |  |  |  | 2.93% |  |  |  |  |  |
Borrowings, maturity |  | February 15, 2037 |  |  |  | November 15, 2041 |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  |  | IPCA |  |  |  |  |  |
Major borrowings [member] | Ultracargo Logística S.A. | Northeast region constitutional fund | Brazilian real per US dollar [member] |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  |  | 69.65% |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  |  | DI |  |  |  |  |  |
Major borrowings [member] | Ultracargo Logística S.A. | Debentures fourth issue [member] |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | R$ 350,000 |  |  |  |  |  |  |  |
Index/Currency |  |  |  | USD |  |  |  |  |  |  |  |
Borrowings, interest rate |  |  |  | 5.32% |  |  |  |  |  |  |  |
Borrowings, maturity |  |  |  | April 2, 2026 |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  | 101.65% |  |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  | DI |  |  |  |  |  |  |  |
Major borrowings [member] | Cia Ultragaz [member] | Foreign loans [member] |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  | R$ 577,880 |  |  |  |  |  |  | $ 100,000
Borrowings, interest rate |  |  |  |  | 0.91% |  |  |  |  |  |  | 0.91%
Borrowings, maturity |  |  |  |  | February 13, 2026 |  |  |  |  |  |  |
Borrowings, interest rate basis |  |  |  |  | SOFR |  |  |  |  |  |  |
Major borrowings [member] | Cia Ultragaz [member] | Foreign loans [member] | Brazilian real per US dollar [member] |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Borrowings, adjustment to interest rate basis |  |  |  |  | 102.90% |  |  |  |  |  |  | 102.90%
Borrowings, interest rate basis |  |  |  |  | DI |  |  |  |  |  |  |
Major ordinary share transactions [member] |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  |  |  |  |  |  |  | 1,115,507,182 |  | 67,679 |
Increase in Company's capital | R$ 1,365,348 |  |  |  |  |  |  |  |  |  |  |

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