PRESS RELEASE 2026 CORPORATE EVENTS CALENDAR Milan, 29 July 2026 – Guidotti Ships S.p.A. (“Guidotti Ships” or the “Company”), an operator specialized in offshore maritime services in the Central Adriatic, active in the sectors of offshore support, marine survey, pollution response, and seasonal passenger transport (ticker code: GDT), announces, in accordance with the provisions of Article 17 of the Euronext Growth Milan Issuers' Regulations, the calendar of corporate events for the year 2026, as reported below: Date Event 29 September 2026 Board of Directors for the approval of the half-yearly Financial Report as at 30 June 2026 The Company will promptly notify any changes to the communicated dates. *** This press release is available in the “Investor Relations/Press Releases” section of the website www.guidottiships.it and on www.1info.it. For the dissemination of regulated information, Guidotti Ships uses the 1INFO SDIR & STORAGE system (www.1info.it), managed by Computershare S.r.l., with headquarters at via Lorenzo Mascheroni 19, Milan. Guidotti Ships S.p.A. Founded in 2000 by a family active in the maritime sector for over seven generations, Guidotti Ships S.p.A. is a specialized operator in maritime services across the Mediterranean. The company operates in four business areas – offshore assistance, marine survey, pollution response and seasonal passenger transport – through a proprietary fleet of 11 multifunctional vessels operating 24/7. Supported by leading quality, safety and environmental certifications, Guidotti Ships provides integrated solutions to industrial and institutional clients, meeting the highest operational standards. The listing on Euronext Growth Milan is part of a growth strategy that includes strengthening the fleet, expanding the team and advancing qualification programs with national and international operators in the energy, oil & gas and subsea infrastructure sectors. Contacts Guidotti Ships S.p.A. Value Track SIM S.p.A. Investor Relator Euronext Growth Advisor & Global Coordinator Giada Garofalo Mail: ecm@value-track.com Tel: +39 347 1747595 Mail: investor.relator@guidottiships.it Twister communications group Communication Advisor Mail: guidottiships@twistergroup.it Lucia Saluzzi - Tel: +39 347 5536979 Lorenzo Zatta - Tel: +39 349 1848897