Company: PBR
Filing Date: 2025-09-03
Form Type: 424B2
Source: 0001104659-25-086714
Chunk: 108

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-03
Form: 424B2
Chunk 108
---
 similar transaction to cause for U.S. federal income tax purposes an exchange of debt securities for new securities
by the holders of the debt securities. This could result in the recognition of taxable gain or loss for U.S. federal income tax purposes
and possible other adverse tax consequences.

Modification and Waiver

There are three types of changes we can make to
the indenture and the debt securities.

Changes Requiring Your Approval.First,
there are changes that cannot be made to your debt securities without your specific approval. These are the following types of changes:

| · | change the stated maturity of the principal, interest or premium on a debt security; |

| · | reduce any amounts due on a debt security; |

| · | change any obligation to pay the additional amounts described under “Payment of Additional Amounts”; |

| · | reduce the amount of principal payable upon acceleration of the maturity of a debt security following 
 a default;                                                                                            |

<div align='center'>17</div>

| · | change the place or currency of payment on a debt security; |

| · | impair any of the conversion or exchange rights of your debt security; |

| · | impair your right to sue for payment, conversion or exchange; |

| · | reduce the percentage of holders of debt securities whose consent is needed to modify or amend the indenture; |

| · | reduce the percentage of holders of debt securities whose consent is needed to waive compliance with various 
 provisions of the indenture or to waive specified defaults; and                                              |

| · | modify any other aspect of the provisions dealing with modification and waiver of the indenture. (Petrobras 
 Section 9.02; PGF Section 9.02)                                                                             |

Changes Requiring a Majority Vote.The
second type of change to the indenture and the debt securities is the kind that requires a vote of approval by the holders of debt securities
that together represent a majority of the outstanding principal amount of the particular series affected. Most changes fall into this
category, except for changes described below under “Changes Not Requiring Approval.”. For example, this vote would be required
for us to obtain a waiver of all or part of any covenants described in an applicable prospectus supplement or a waiver of a past default.
However, we cannot obtain a waiver of a payment default or any other aspect of the indenture or the debt securities listed in the first
category described previously beginning above under “Changes Requiring Your Approval” unless we obtain your individual consent
to the waiver