Complaints book

Política de Gestão de Reclamações

‍

Nexa has a process for dealing with customer complaints, which may be submitted through the following means:
a) By letter addressed to Nexa:
Nexa, SGOIC.
Avenida 31 de Janeiro, 307 4715-052 Braga
b) By e-mail to reclamacoes@nexa.com;
c) By telephone contact: +351 253 461 462;
e) In the Complaints Book available at Nexa;
f) Through the online Complaints Book available in the Complaints Book
Complaints can also be submitted to the following entities:
— To Banco de Portugal, through the following postal address: Banco de Portugal, Apartado 2240, 1106-001 Lisbon, or by e-mail filling out the form available on the Banco de Portugal website;
— To the Securities Market Commission, addressed to the Investor Support Office, at the following postal address: Rua Laura Alves, 4, 1064 — 003 Lisboa; or through the CMVM website

‍