Company: PBR
Filing Date: 2025-09-05
Form Type: 424B2
Source: 0001104659-25-087755
Chunk: 54

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-09-05
Form: 424B2
Chunk 54
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 the settlement date.

We understand that secondary
market trading between Clearstream, Luxembourg and/or Euroclear participants will occur in the ordinary way following the applicable rules and
operating procedures of Clearstream, Luxembourg and Euroclear. Secondary market trading will be settled using procedures applicable to
securities in registered form.

You should be aware that investors
will only be able to make and receive deliveries, payments and other communications involving the Notes through Clearstream, Luxembourg
and Euroclear on business days. Those systems may not be open for business on days when banks, brokers and other institutions are open
for business in the United States or Brazil.

Because of time zone differences,
the securities account of a Euroclear or Clearstream, Luxembourg participant purchasing an interest in a global note from a participant
in DTC will be credited and reported to the relevant Euroclear or Clearstream, Luxembourg participant, during the securities settlement
processing day (which must be a business day for Euroclear and Clearstream) immediately following the settlement date of DTC. DTC has
advised us that cash received in Euroclear or Clearstream, Luxembourg as a result of sales of interests in a global note by or through
a Euroclear or Clearstream, Luxembourg participant to a participant in DTC will be received with value on the settlement date of DTC but
will be available in the relevant Euroclear or Clearstream, Luxembourg cash account only as of the business day for Euroclear or Clearstream,
Luxembourg following DTC’s settlement date.

Clearstream, Luxembourg or
Euroclear will credit payments to the cash accounts of participants in Clearstream, Luxembourg or Euroclear in accordance with the relevant
systemic rules and procedures, to the extent received by its depositary. Clearstream, Luxembourg or the Euroclear, as the case may
be, will take any other action permitted to be taken by a registered holder under the indenture on behalf of a Clearstream, Luxembourg
or Euroclear participant only in accordance with its relevant rules and procedures.

Clearstream, Luxembourg and
Euroclear have agreed to the foregoing procedures in order to facilitate transfers of the debt securities among participants of Clearstream,
Luxembourg and Euroclear. However, they are under no obligation to perform or continue to perform those procedures, and they may discontinue
those procedures at any time.

<div align='center'>S-42

UNDERWRITING</div>

Under the terms and subject
to the conditions contained in the underwriting agreement dated September 3, 2025,