The Regulation for Reporting Violations (whistleblowing) at Vallis can be consulted here.


To report an infringement in writing to Vallis, you can use one of the following channels:

  • Send an email to the following address:

  • Send a letter, marked “confidential”, to the following postal address:

Avenida da Boavista, nº 36, 1st floor

4050-112 Porto, Portugal