CTT Correios de Portugal S A : Interim report on the transactions carried out in the context of the share buyback programme

About this update from Ctt - Correios De Portugal Sa

Announcement - Lisbon, 20 May 2026 Interim report on the transactions carried out in the context of the share buyback programme CTT - Correios de Portugal, S.A. ("CTT" or "Company") hereby informs that in the period from 14 May to 20 May 2026 (inclusive) JB Capital Markets, S.V., S.A.U. has acquired 90,000 shares representing CTT's share capital, under the share buyback programme ("Buyback Programme") and as the financial intermediary in charge of the execution of said programme, in Euronext Lisbon ("XLIS") regulated market and/or on the trading platforms CBOE Europe - DXE Lit Order Book (NL) ("CEUX"), Aquis Exchange Europe SAS ("AQEU") and/or Turquoise Europe ("TQEX") as detailed in the table below (aggregated information): ISIN Code: PTCTTOAMO001 A ggregated Weighted % Session's Date of the Volume Average Total transaction (shares) Price (C) Volume in %Session's Total Volume in %Session's Total Volume in %Session's Total Volume in % Share Capital XLIS CEUX AQEU TQEX 14-05-2026 15,000 6.377 6.25% 0 0 0 0.01% 15-05-2026 15,000 6.313 2.96% 2.96% 0 0 0.01% 18-05-2026 20,000 6.249 4.14% 0 0 0 0.01% 19-05-2026 20,000 6.331 5.90% 0 0 0 0.01% 20-05-2026 20,000 6.318 4.11% 0 0 0 0.01% As at 20 May 2026, the Company had already acquired 1,455,000 shares under the scope of the Buyback Programme announced to the market on 10 February 2026. The price paid for these acquisitions amounted to a total of €9,333,398. As a consequence, on this date, the Company holds an aggregated total of 1,564,735 own shares, representing 1.17% of its share capital. Further detailed information on all transactions carried out under the Buyback Programme, in the period from 14 May to 20 May 2026 (inclusive), may be found in the tables attached hereto as Annexes 1to 5. Information by regulated market or trading platform is detailed in the table below: Date of the transaction ISIN Aggregated Volume Weighted Average Trading (shares) Price (C) Venue 14-05-2026 PTCTT0AM0001 15,000 6.377 XLIS 15-05-2026 PTCTT0AM0001 11,000 6.302 XLIS 18-05-2026 PTCTT0AM0001 20,000 6.249 XLIS 19-05-2026 PTCTT0AM0001 20,000 6.331 XLIS 20-05-2026 PTCTT0AM0001 20,000 6.318 XLIS 14-05-2026 PTCTT0AM0001 0 0.000 CEUX 15-05-2026 PTCTT0AM0001 4,000 6.343 CEUX 18-05-2026 PTCTT0AM0001 0 0.000 CEUX 19-05-2026 PTCTT0AM0001 0 0.000 CEUX 20-05-2026 PTCTT0AM0001 0 0.000 CEUX 14-05-2026 PTCTT0AM0001 0 0.000 AQEU 15-05-2026 PTCTT0AM0001 0 0.000 AQEU 18-05-2026 PTCTT0AM0001 0 0.000 AQEU 19-05-2026 PTCTT0AM0001 0 0.000 AQEU 20-05-2026 PTCTT0AM0001 0 0.000 AQEU 14-05-2026 PTCTT0AM0001 0 0.000 TQEX 15-05-2026 PTCTT0AM0001 0 0.000 TQEX 18-05-2026 PTCTT0AM0001 0 0.000 TQEX 19-05-2026 PTCTT0AM0001 0 0.000 TQEX 20-05-2026 PTCTT0AM0001 0 0.000 TQEX As disclosed to the market in due time*, on 11 February 2026, CTT started trading in the context of the Buyback Programme, pursuant to (i) the limits of the resolution adopted under item 4 of the Agenda of the General Meeting held on 30 April 2025, including the authorisation for the acquisition of own shares fora period of 18 months from the date of such resolution, as disclosed to the market in due time; (ii) the terms and conditions of potential authorisations for the acquisition of own shares that may be approved by the General Meeting of shareholders of CTT on terms similar to the ones resolved by the aforementioned 2025 General Meeting that may be submitted to the General Meeting by the Board of Directors of CTT; and (iii) the terms and conditions of the potential share capital decrease for these purposes to be resolved by the General Meeting of Shareholders of CTT, in particular, the ones foreseen in the share capital decrease proposal(s) that may also be submitted to the General Meeting by the Board of Directors of CTT. This information to the market and the general public is made pursuant to Articles 5(1)(b) of Regulation (EU) No 596/2014 of the European Parliament and of the Council of 16 April 2014 and 2(3) of Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016. It is also available on CTT website at: httBs-//www ctt Bt/qruBo-ctt/investidores/comunicados/index>Ianouaqe id=1. CTT - Correios de Portugal, S.A. Guy Pacheco Marl‹et Relations Representative of CTT ‌1 10 February 2026 Nuno Vieira Head of Investor Relations of CTT Contacts: Email: [email protected] I Phone: + 351 210 471 087 Trade Date Trading Time (CET) Number of shares Price (g) Stock Type of business Trading Venue Total 15,000 6.3769 14-05-2026 09:30:32 2,800 6.3600 PTCTT0AM0001 Acquisition XLIS 14-05-2026 09:30:32 200 6.3600 PTCTT0AM0001 Acquisition XLIS 14-05-2026 11:36:06 1,303 6.3700 PTCTT0AM0001 Acquisition XLIS 14-05-2026 11:36:06 1,697 6.3700 PTCTT0AM0001 Acquisition XLIS 14-05-2026 13:08:28 2,800 6.3750 PTCTT0AM0001 Acquisition XLIS 14-05-2026 13:08:28 200 6.3750 PTCTT0AM0001 Acquisition XLIS 14-05-2026 13:56:40 22 6.3450 PTCTT0AM0001 Acquisition XLIS 14-05-2026 16:31:58 144 6.3850 PTCTT0AM0001 Acquisition XLIS 14-05-2026 16:31:58 1,369 6.3850 PTCTT0AM0001 Acquisition XLIS 14-05-2026 16:31:58 707 6.3850 PTCTT0AM0001 Acquisition XLIS 14-05-2026 16:31:58 105 6.3850 PTCTT0AM0001 Acquisition XLIS 14-05-2026 16:31:58 416 6.3850 PTCTT0AM0001 Acquisition XLIS 14-05-2026 16:31:58 237 6.3850 PTCTT0AM0001 Acquisition XLIS 14-05-2026 17:03:03 128 6.3950 PTCTT0AM0001 Acquisition XLIS 14-05-2026 17:03:03 2,266 6.3950 PTCTT0AM0001 Acquisition XLIS 14-05-2026 17:03:34 606 6.3950 PTCTT0AM0001 Acquisition XLIS Trade Date Trading Time (CET) Number of shares Price (g) Stock Type of business Trading Venue Total 15,000 6.3127 15-05-2026 09:14:16 3,000 6.3700 PTCTT0AM0001 Acquisition XLIS 15-05-2026 10:17:35 188 6.3450 PTCTT0AM0001 Acquisition CEUX 15-05-2026 10:17:35 1,812 6.3450 PTCTT0AM0001 Acquisition CEUX 15-05-2026 11:42:52 9 6.3400 PTCTT0AM0001 Acquisition CEUX 15-05-2026 11:42:52 9 6.3400 PTCTT0AM0001 Acquisition CEUX 15-05-2026 11:42:52 1,982 6.3400 PTCTT0AM0001 Acquisition CEUX 15-05-2026 14:01:22 2,000 6.3250 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:25:50 505 6.2900 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:25:50 1,301 6.2900 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:25:55 194 6.2900 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:48:39 145 6.2450 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:48:39 149 6.2450 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:48:39 141 6.2450 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:49:23 721 6.2450 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:49:23 1 6.2450 PTCTT0AM0001 Acquisition XLIS 15-05-2026 15:49:23 2,843 6.2450 PTCTT0AM0001 Acquisition XLIS www.ctt.pt

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