NOS SGPS

Capital/Financing Update • Mar 27, 2025

NOS, SGPS, S.A. Registered Office: Rua Actor António Silva, 9, Campo Grande, 1600-404 Lisbon Share Capital: 855,167,890.80 Euros Lisbon Commercial Registry and Legal Entity Number 504 453 513

NOS SECURES €100 MILLION IN BANK FINANCING

NOS has successfully secured a total of €100 million in bank financing from three financial institutions - Banco Bilbao Vizcaya Argentaria (BBVA), Caixa Geral de Depósitos (CGD) and Banco Comercial Português (Millennium bcp). These loans have a five-year term, with maturity set for 2030.

The new financing arrangements replace an existing credit line of the same amount, which was due to mature in March 2025. By refinancing under these new terms, NOS strengthens its financial position, ensuring access to liquidity under favourable conditions. Additionally, this move helps the company maintain its average debt cost at highly competitive levels compared to both national and European industry peers. Furthermore, it allows for the extension of the average maturity of its debt, reinforcing its long-term financial sustainability.

As of 31* December 2024, NOS leverage ratio - Net Financial Debt / EBITDA After Leases - stood at 1.4x, which is below its financial policy target of approximately 2x. The company's prudent financial management and solid capital structure reflect the robustness of its Balance Sheet, ensuring stability and flexibility to support future investments and strategic initiatives.

This information is also available on the NOS Investor Relations website at www.nos.pt/ir.

Lisbon, 27th March 2025

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