NOS, SGPS, S.A.

(Public Company)

Registered Offices: Rua Actor António Silva 9 Campo Grande, parish of Lumiar

1600-404 Lisbon

Registration number before the Companies Registrar of Lisbon and tax payer number 504 453 513

Registered Share Capital: EUR 5,151,613.80

Qualified Shareholding

Lisbon 20 July 2018 Under the terms and for the purposes of Article 17 of the Portuguese Securities

NO NOhereby informs that it has received the qualified shareholding announcement below from Harris Associates Investment Trust.

This information is also available on NOS

www.nos.pt/ir.

Lisbon, 20 July 2018

Contacts

Maria João Carrapato

Head of Investor Relations Email:ir@nos.pt

Tel.: +351 21 782 4725 Fax: +351 21 782 4735

Attachments

Disclaimer

Nos SGPS SA published this content on 20 July 2018 and is solely responsible for the information contained herein. Distributed by Public, unedited and unaltered, on 20 July 2018 16:57:07 UTC