PRESS RELEASE
Mare Group S.p.A. – P.IVA IT07784980638 – Cap. Soc. € 5.123.467,00 i.v. Tel. +39 081 8036677 – Fax +39 081 3177513 – www.maregroup.it – info@maregroup.it MARE GROUP: TERMINATION OF THE SPECIALIST APPOINTMENT Salerno, 14 September 2026 Mare Group S.p.A. (ticker MARE.MI), a high-technology engineering company listed on Euronext Growth Milan and operating in Italy and abroad in innovation through proprietary platforms (“Mare Group” or the “Company”), announces, pursuant to Article 17 of the Euronext Growth Milan Rules for Companies, that on 14 September 2026 it served MIT SIM S.p.A. (“MIT SIM”) notice of termination of the Specialist agreement, in compliance with the contractual notice period. The Company has asked MIT SIM to continue to act as Specialist until 13 October 2026 included. Mare Group thanks MIT SIM for the work carried out and also announces that it has started the process for the appointment of the new Specialist, which will be promptly disclosed to the market. *** This press release is available on the Company’s website https://www.maregroup.it/investor-relations and on the authorised storage and dissemination system for regulated information “1INFO”, available at https://www.1info.it/. *** Mare Group With a history that began in 2001, Mare Group is a High-Technology Engineering company operating in strategic sectors such as Aerospace & Defence, Industry & Transportation, Critical Infrastructure and Building. Listed on Euronext Growth Milan, the company operates as an industrial platform built on proprietary technologies and platforms, thanks to more than 700 people, 35 offices in 5 countries and the experience of more than 30 research projects completed with Italian and foreign universities. The numerous acquisitions and subsequent integrations carried out since 2019 make Mare Group one of the leading independent players in innovative engineering, in Italy and Europe. Contact Info Investor Relations Manager: Gennaro Tesone c/o Mare Group – Via Ex Aeroporto SNC, 80038 Pomigliano d’Arco – T. +39 081 803 6677 – e-mail investor-relator@maregroup.it Investor Media Relations Advisor: IRTOP Consulting Via Bigli, 19 – 20121 Milano tel. +39 0245473883 e-mail ir@irtop.com Business Media Relations Advisor: My Twin Communication Via Monferrato, 13 – 20144 Milano tel. +39 335 5985809 (M. Messori) | +39 375 6115009 (M. Coppola) e-mail: mare-group@mytwincommunication.com Euronext Growth Advisor: illimity Bank S.p.A. Via Soperga 9, 20124 Milano tel. +39 0282849699 – e-mail maregroup@furstenberg.com Specialist: MIT SIM S.p.A. Corso Venezia 16, 20121 Milano tel. +39 0230561270 – e-mail investor.relations@mitsim.it