THIS DOCUMENT MUST NOT BE DISCLOSED, PUBLISHED, OR DISTRIBUTED, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN ANY COUNTRY WHERE SUCH DISCLOSURE, PUBLICATION, OR DISTRIBUTION WOULD CONSTITUTE A VIOLATION OF APPLICABLE LAWS OR REGULATIONS IN THAT JURISDICTION

Milan, August 18, 2026 - Webuild S.p.A. (“Webuild”) announces that it filed today with CONSOB the offer document relating to the voluntary tender offer (the “Offer”) on all the ordinary shares in Trevi-Finanziaria Industriale S.p.A., announced to the market on July 29, 2026 pursuant to Art. 102 of Legislative Decree No. 58 of February 24, 1998 and Art. 37 of the regulation adopted by CONSOB Resolution No. 11971 of May 14, 1999, to which reference is made for information on the essential terms and conditions of the Offer.

The offer document will be published in accordance with applicable law upon completion of the applicable CONSOB review.

Webuild further announces that today, for purposes of satisfying the conditions precedent to the Offer, it has notified the transaction to:

• The Italian Competition Authority (AGCM) pursuant to Law No. 287 of October 10, 1990.
• The Presidency of the Italian Council of Ministers pursuant to Decree Law (D.L.) No. 21 of March 15, 2012.

Webuild will promptly file any further applications necessary to satisfy the Offer conditions precedent.

This press release and all documents relating to the Offer will be made available, among other places, on the following websites:

https://www.webuildgroup.com/it/investitori/opa-trevi and 

https://www.webuildgroup.com/en/investor-relations/opa-trevi.

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This communication does not constitute, and is not intended to constitute, an offer, invitation or solicitation to buy or otherwise acquire, subscribe for, sell or otherwise dispose of any financial instruments, and no sale, issuance or transfer of financial instruments of Trevi Finanziaria Industriale S.p.A. will be made in any country in violation of the applicable laws. The Offer will be made by means of publication of the relevant offer document, subject to CONSOB approval. The offer document will contain the full description of the terms and conditions of the Offer, including acceptance procedures. The publication or dissemination of this communication in countries other than Italy may be subject to restrictions under applicable law, and accordingly any person subject to the laws of any country other than Italy is required to independently inform itself of any restrictions under applicable laws and to ensure compliance therewith. Any failure to comply with such restrictions may constitute a violation of the applicable laws of the relevant country. To the fullest extent permitted by applicable law, the parties involved in the Offer shall be deemed exempt from any liability or adverse consequence arising from the violation of such restrictions by such persons. This communication has been prepared in accordance with Italian law and the information disclosed herein may differ from that which would have been disclosed had the communication been prepared in accordance with the laws of countries other than Italy. No copy of this communication or any other documents relating to the Offer will be, or may be, mailed or otherwise transmitted or distributed in or from any country where the provisions of local law may give rise to civil, criminal or regulatory risks if information concerning the Offer is transmitted or made available to shareholders of Trevi Finanziaria Industriale S.p.A. in such country or other countries where such actions would constitute a violation of the relevant laws, and any person receiving such documents (including custodians, nominees or trustees) must not mail or otherwise transmit or distribute them to or from any such country. The contents of this communication are of an informational and preliminary nature and should not be construed as investment advice. The statements contained herein have not been independently verified. No representation or warranty, express or implied, is made as to, and no reliance should be placed on, the fairness, accuracy, completeness, correctness or reliability of the information contained herein. Neither Webuild S.p.A. nor any of its representatives nor its direct or indirect controlling shareholders shall accept any liability (whether in negligence or otherwise) arising in any way in connection with such information or in connection with any loss arising from its use or otherwise arising in connection with this communication. By accessing this communication, you agree to be bound by the foregoing limitations.