Webuild

Earnings Release • May 14, 2025

PRESS RELEASE

SELECTED DISCLOSURE FOR FIRST 3 MONTHS OF 2025

• €5 BILLION OF NEW ORDERS YEAR-TO-DATE, INCLUDING CONTRACTS ACQUIRED OR BEING FINALISED
• STRONG COMMERCIAL PIPELINE AT €162 BILLION, INCLUDING €34 BILLION OF TENDERS AWAITING OUTCOME
• 2025 GUIDANCE CONFIRMED

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MILAN, May 14, 2025 – The Board of Directors of Webuild (Euronext Milan: WBD) today examined the following data and information relating to the business performance since the start of 2025.

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Since the beginning of 2025, Webuild has been selected for, or is in the process of finalisation, for projects with a combined value of €5 billion in low-risk markets, including Italy, Australia, Saudi Arabia, and North America. Thanks to its significant order backlog—which provides full visibility for 2025 and the upcoming Business Plan—and a strong short-term commercial pipeline of €162 billion, the Group is pursuing a selective approach in the bidding for new projects, with focus on profitability and cash generation.

The projects acquired include the expansion of an area for the train maintenance and repair along Rome's Metro Line C and design activities for the Salt River hydroelectric pumped-storage plant in Arizona (USA). In addition, there are contracts in the process of being finalised, mainly related to metro lines and hospitals abroad, such as the Women and Babies Hospital in Perth, Australia, further reinforcing the Group's positioning in strategic sectors for sustainable mobility and essential services. In Italy, Webuild holds a favourable position for the formalization of additional contracts, in the coming months, for the development of urban mobility and high-speed rail.

During the first months of the year, significant progress was also made on ongoing projects, both in Italy and abroad. In the high-speed rail sector in Italy, excavation works were completed on the Verona–Bivio Vicenza section of the Verona-Padua line, while the first two kilometres of track were laid on the Naples– Cancello section of the Naples-Bari line. Also in Italy, the seventh caisson was installed for Genoa's New Breakwater. Abroad, construction works were completed on Interstate 275 in Florida, while the first section of excavation was finalised for the North East Link project in Melbourne, Australia.

The Group's commitment to sustainability remains, confirming its leadership with an "A-" rating in the 2024 Climate Change program by CDP (formerly Carbon Disclosure Project). It also received a "B" rating in the "Water Security" category, recognising its responsible and efficient water resource management, with a strong focus on reducing freshwater withdrawals and increasing the use of water reuse solutions.

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2025 NEW ORDERS

Total new orders since the beginning of the year amount to €5 billion, of which €220 million have already been formally awarded. The remaining portion consists of contracts in the process of being finalised, where the Group is the preferred bidder or is well positioned for being awarded the contract. Below, the geographical breakdown of new orders:

The Group also confirms its de-risking strategy, supported by the acquisition of contracts with new contractual terms, mainly in North America. It helps mitigate execution risks during the construction phase, thanks to close collaboration with the customer at the earliest stage.

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COMMERCIAL PIPELINE

Webuild's short-term commercial pipeline amounts to €162 billion, including tenders submitted and awaiting an outcome for more than €34 billion.

The Group closely monitors opportunities in strategic markets such as Europe, Australia, North America, and the Middle East, where it holds a strong competitive position and where infrastructure demand is supported by major investment programs.

In Europe, substantial investments are expected, driven not only by initiatives such as Next Generation EU and the Connecting Europe Facility, but also by the commitment of national governments to modernise their

respective countries' infrastructure and stimulate economic growth. In Italy, in addition to the NRRP (National Recovery and Resilience Plan), further investments are planned to expand the high-speed rail network, metro systems, hydropower and water management plants, as well as the redevelopment of stadiums and hospitals.

In Australia, growth is being driven by the energy sector, with projects in hydropower and transmission lines, as well as by the water sector, including desalination plants, and investment in hospital infrastructure. Significant opportunities will also come from the development of the Brisbane area in preparation for the 2032 Olympic Games.

In the United States, a strong boost is expected from public-private partnership (PPP) initiatives for roads, bridges, and hydroelectric plants. In Canada, the focus is on both the energy and water sectors, as well as on metro systems and light rail transit.

In the Middle East, and in particular in Saudi Arabia, investments in large infrastructure projects are expected to remain strong, driven by the Saudi Vision 2030 plan, as well as FIFA World Cup 2034 and Expo 2030. Key areas of focus include metro systems, railways, stadiums, airports, and other infrastructure developments.

In addition to its core markets, Webuild monitors other regions where it can leverage its proven expertise to achieve an appropriate balance between risk and return.

Below is a breakdown of the pipeline by category and geography:

OUTLOOK

The evolution of commercial and business activities in the first months of the year, as well as the volume and quality of the order backlog, allow Webuild to confirm the financial guidance for 2025: a book-to-bill greater than 1.0 times, and a furtherimprovement of results with revenues exceeding €12.5 billion and EBITDA greater than €1.1 billion. Webuild remains focused on cash generation, maintaining a solid net cash position, which is expected to exceed €700 million.

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Disclaimer

This press release contains forward-looking statements. These statements are based on the Group's current expectations and projections regarding future events and, by their nature, are subject to an inherent component of risk and uncertainty. They are statements that relate to events and depend on circumstances which may or may not happen or occur in the future and, as such, undue reliance should not be placed on them. Actual results may differ even significantly from those announced due to a variety of factors,

including: volatility and deterioration of capital and financial markets, changes in commodity prices, changes in macroeconomic conditions and growth economic and other changes in business conditions, of an atmospheric nature, due to floods, earthquakes or other natural disasters, changes in legislation and the institutional context (both in Italy and abroad), difficulties in production, including constraints in the use of plants and supplies and many other risks and uncertainties, the majority of which are beyond the control of the Group.

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Webuild is a global leader in the design and construction of large, complex infrastructure projects in sustainable mobility, hydropower, water treatment, and green buildings. A recognized leader in the water sector, it works in approximately 50 countries with over 92,000 people of 125 different nationalities. The Group boasts nearly 120 years of applied engineering on more than 3,700 completed projects, with a track record of 13,648 kilometres of railways, 891 kilometres of metro lines, 82,577 kilometres of roads and highways, 1,022 kilometres of bridges and viaducts, 3,462 kilometres of tunnels, and 318 dams and hydropower plants. Among its most famous projects: the expansion of the Panama Canal, the Long Beach International Gateway bridge in California, the Third Bosphorus Bridge in Turkey, the Sydney Metro Northwest skytrain viaduct and bridge, the Kingdom Centre skyscraper in Riyadh, Saudi Arabia, and numerous metro lines in Copenhagen, Paris, Rome, Milan, Naples, Doha, Thessaloniki, and Riyadh. Among the main ongoing projects, the following stand out: the New Genoa Breakwater, the Brenner Base Tunnel, Line C of Rome's metro network, the high-capacity railways between Genoa and Milan, the high-speed railway between Naples and Bari, the Palermo-Catania-Messina high-capacity railway, the Snowy 2.0 hydropower scheme in Australia, and the Trojena dam network in Saudi Arabia. As of December 31, 2024, the Webuild Group registered total revenues for €12 billion and a total backlog of €63 billion, with more than 90% of its construction backlog related to projects linked to the United Nations Sustainable Development Goals (SDGs). Webuild, subject to the direction and coordination of Salini Costruttori S.p.A., is headquartered in Italy, is listed on the Milan Stock Exchange, Borsa Italiana (WBD; WBD.MI; WBD:IM), and since 2021, it is included in the MIB ESG index of the Italian blue-chip companies with the best ESG practices.

More information at www.webuildgroup.com

Contacts:

Media Relations Investor Relations Francesca Romana Chiarano Amarilda Karaj Tel. +39 338 247 4827 Tel +39 02 444 22476 email: f.chiarano@webuildgroup.com email: a.karaj@webuildgroup.com