Webuild — Regulatory Filings 2021

Jun 23, 2021

PRESS RELEASE

INNOVATION AND SUSTAINABILITY: WEBUILD GROUP WITH ITS SUBSIDIARY CSC AWARDED CONTRACT WORTH €120 MILLION FOR SAFEHOSTDATA CENTRE, IN SWITZERLAND

MILAN, June 23, 2021 - The Webuild Group, through its subsidiary CSC Costruzioni SA, was awarded the contract worth €120 million (131.5 million Swiss francs), to construct an additional 18MW of capacity for Safe Host's Data Centre in Gland (Canton of Vaud), Switzerland.

Works on the new project confirm the Group's commitment to low risk profile markets. CSC, in joint venture with the Titanium Swiss Group, will carry out the works starting in July 2021, estimated to be completed within 18 months.

Safe Host has over 76 MVA of installed capacity across four Swiss sitesto meet the demand from global cloud providers companies to host their systems in Switzerland.

The contract strengthens the presence of CSC in Switzerland. CSC was recently awarded a contract in the sustainable mobility sector worth approximately €80 million, to build the northern tunnel of the St. Gotthard motorway tunnel: a 4km-long-access tunnel for the second St. Gotthard tunnel. In the green buildings segment, in the French-speaking part of Switzerland, CSC is currently carrying out works to renovate the historic buildings of the United Nations Palais des Nations, in Geneva, and the new Parc du Simplon, in Lausanne, for CFF Immobilier.

The Webuild Group, over the years, has built civil, institutional, commercial, cultural, sport and religious buildings, and has completed over 100 hospitals and 80 airports. It is also experienced in using Eco-design & Construction schemes, which make it possible to reduce the environmental footprint of such works, over their entire life span, by more than 30%. In this heavily urbanized scenario, with evermore populated cities, and the consequent impact on urban pollution levels, designing eco-sustainable infrastructure is essential to improve life in cities

The Stavros Niarchos Foundation Cultural Centre (SNFCC), in Athens, Greece, is an example of this: designed by Renzo Piano, it representsstate of the art engineering technological excellence put at the service of Culture and Art. It houses Greece's two most important cultural institutions: the National Library, with its 750,000 volumes, and the Greek National Opera.

In Italy, also thanks to Progetto Italia, the industrial operation that integrated Astaldi's know-how, the Group is currently engaged in building the new Monopoli-Fasano hospital, in Puglia, with 300 new beds and 9 operating rooms as well as the new Eni headquarters, in San Donato Milanese, a project by the US architecture firm Morphosis Architects, led by the Pritzker prize winner, Thom Mayne.

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, clean hydro energy, clean water, green buildings, supporting clients in achieving sustainable development goals (SDGs). The Group is the expression of 115 years of engineering experience applied in 50 countries on five continents with 70,000 direct and indirect employees from more than 100 nationalities. Recognized for five years by Engineering News-Record (ENR) as the world leader in water infrastructure (such as dams, hydraulic tunnels, water and wastewater management, and water treatment and

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desalination plants), it ranks since 2018 among the top 10 in the environment sector and it is also leader in sustainable mobility (especially metro and rail lines, in addition to roads and bridges). A signatory of the United Nations Global Compact, the Group's expertise is displayed in projects such as the M4 metro line in Milan, Grand Paris Express, Cityringen in Copenhagen, Sydney Metro Northwest, Red Line North Underground in Doha, Line 3 of the Riyadh Metro and the high-speed railways in Italy. Other projects include the new Genoa Bridge and the Gerald Desmond replacement bridge in Long Beach, California, the expansion of the Panama Canal, the Snowy 2.0 hydroelectric power station in Australia, the Rogun hydroelectric dam in Tajikistan, the Anacostia River and Northeast Boundary tunnels in Washington, D.C. and the Al Bayt 2022 World Cup stadium in Qatar. In 2020, the Group's total order backlog reached €41.7 billion, with 89% of the backlog of construction orders involving projects that support the SDGs set by the United Nations. Webuild, subject to direction and coordination by Salini Costruttori SpA, is headquartered in Italy and is listed on the Milan Stock Exchange (Borsa Italiana: WBD; Reuters: WBD.MI; Bloomberg: WBD:IM).

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