CTT-Correios de Portugal

Share Issue/Capital Change • May 13, 2025

CTT – Correios de Portugal, S.A. Av. dos Combatentes, no. 43 – 14th Floor 1643-001 LISBOA Lisbon commercial registry and fiscal no. 500 077 568 Share Capital EUR 66,910,000.00

Announcement – Lisbon, 13 May 2025

Material information - Share capital reduction through cancellation of own shares

CTT - Correios de Portugal, S.A. ("CTT" or "Company") hereby informs that, on this date, a reduction of CTT's share capital in the amount of 2,310,000.00 EUR was registered before the Commercial Registry Office through the cancellation of 4,620,000 shares held by the Company, representing 3.34% of its share capital prior to the cancellation and acquired under the share buyback programme carried out from 22 July 2024 to 17 April 2025.

As such, CTT's share capital is now 66,910,000.00 EUR, represented by 133,820,000 shares with the nominal value of fifty cents per share. Paragraphs 1 and 2 of article 4 of the Articles of Association of the Company have been amended accordingly.

Furthermore, the procedures for the cancellation of the shares with Interbolsa and Euronext are expected to be concluded on or around 14 May 2025.

This information to the market and the general public is made under the terms and for the purposes of article 29-K of the Portuguese Securities Code and other legislation in force in Portugal. It is also available on CTT website at:

https://www.ctt.pt/grupo-ctt/investidores/comunicados/index?language_id=1.

CTT – Correios de Portugal, S.A.

Guy Pacheco Market Relations Representative of CTT Nuno Vieira Head of Investor Relations of CTT Contacts: Email: investors@ctt.pt I Phone: + 351 210 471 087