Webuild — Board/Management Information 2022

Oct 3, 2022

PRESS RELEASE

APPOINTMENT BY CO-OPTATION OF TWO BOARD MEMBERS FOLLOWING THE RESIGNATION OF TWO OTHER MEMBERS

MILAN, October 3, 2022 – Please note that the Board of Directors of Webuild S.p.A. today appointed by cooptation, based upon a proposal by CDP Equity S.p.A. (pursuant to the shareholders' agreements in force), Andrea Alghisi and Francesco Renato Mele, both managers of Cassa Depositi e Prestiti S.p.A., as new Board members, replacing Pierpaolo Di Stefano and Tommaso Sabato, who resigned.

The resignations of Pierpaolo Di Stefano and Tommaso Sabato, non-independent and non-executive Board members, were tendered on September 30, 2022 due to "supervening professional commitments" and effective as of the co-optation of the two new directors.

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It should be noted that Pierpaolo Di Stefano and Tommaso Sabato (i) as of the date of their resignation, were not members of any of the Endoconsulting Committees, (ii) will not receive compensation or other benefits as a result of leaving office, and (iii) to the best of the Company's knowledge, do not hold Webuild shares as of today's date.

New Directors Andrea Alghisi and Francesco Renato Mele - who will hold office until the next Shareholders' Meeting - are both non-independent, as ascertained by the Board of Directors at today's meeting, and nonexecutive. To the best of the Company's knowledge, they do not hold Webuild shares, as of today.

For their curricula vitae, please refer to the corporate website www.webuildgroup.com, "Governance - Board of Directors" section".

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The Board of Directors would like to extend its sincere gratitude to Pierpaolo Di Stefano and Tommaso Sabato for their fruitful and excellent collaboration during their terms of office, wishing them all the best in their forthcoming new assignments and professional challenges.

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Webuild, the new Group born in 2020 from Salini Impregilo, is a leading global player in the construction of large, complex projects for sustainable mobility (rail, metro, bridges, roads, ports), hydropower (dams, power plants), water (treatment and desalination plants, wastewater management, irrigation dams) and green buildings (civil and industrial buildings, airports, stadiums, hospitals). It supports clients in achieving the Sustainable Development Goals (SDGs) established by the United Nations. The Group ranks first in the world for the construction of infrastructure in the water sector. Since 2018, it is also among the top 10 companies by revenue generated from environmental services. Webuild is the expression of 116 years of engineering experience applied in 50 countries with 80,000 direct and indirect employees from more than 100 nationalities. Iconic projects, completed or under construction, include the M4 metro line in Milan, a section of Line 16 of the Grand Paris Express, Cityringen in Copenhagen, the viaduct and bridge for Sydney Metro Northwest in Australia, Red Line North Underground in Doha, Line 3 of Riyadh Metro and high-speed railways in Italy. Others include the Genova San Giorgio Bridge in Italy, the Long Beach International Gateway Bridge in Long Beach, California, the expansion of the Panama Canal, the Snowy 2.0 hydroelectric scheme in Australia, the Rogun hydroelectric dam in Tajikistan, the Anacostia River and Northeast Boundary hydraulic tunnels in Washington, D.C., and the Al Bayt 2022 World Cup stadium in Qatar. At June 30, 2022, the Group had a total order backlog

amounting to more than €47 billion, with 90% of the construction backlog relating to projects linked to SDGs. Webuild, subject to direction and coordination by Salini Costruttori S.p.A., is headquartered in Italy and is listed on the Milan stock exchange (Borsa Italiana: WBD; Reuters: WBD.MI; Bloomberg: WBD:IM).

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More information at www.webuildgroup.com

Contacts:

Media Relations Investor Relations Gilles Castonguay Amarilda Karaj Tel. +39 342 682 6321 Tel +39 02 444 22476 email: gr.castonguay@webuildgroup.com email: a.karaj@webuildgroup.com