NOS SGPS

Board/Management Information • Jan 27, 2020

NOS, SGPS, S.A. Public Company Registered Office: Rua Ator António Silva 9 Campo Grande 1600-404 Lisbon Share Capital: 5,151,613.80 Euros Registered in the Commercial Registry Office of Lisbon and Corporation no. 504 453 513

ANNOUNCEMENT

Translation of the Portuguese Original. (In the event of any discrepancy, the Portuguese original shall prevail)

Under the terms and for the purposes of article 248.º A of the Portuguese Securities Code and of article 3.º, paragraph a) of Regulation 5/2008 of the Portuguese Securities Commission, NOS, following meeting held today, Mr. Ângelo Gabriel Ribeirinho dos Santos Paupério was appointed Chairman of the Board of Directors of NOS.

at www.nos.pt/ir.

Lisbon, 27 January 2020

Contacts Maria João Carrapato Head of Investor Relations Email: ir@nos.pt Tel.: +351 21 782 4725 Fax: +351 21 782 4735