Webuild

Share Issue/Capital Change • May 6, 2025

PRESS RELEASE

NOTICE OF CHANGE IN SHARE CAPITAL

(pursuant to Art. 85-bis of the Regulations adopted by Consob Resolution No. 11971 dated 14th May 1999, as amended, and Art. 2.6.2, paragraph 1, letter a), of the Market Regulations both organised and managed by Borsa Italiana S.p.A.)

AND OF THE TOTAL AMOUNT OF VOTING RIGHTS

(pursuant to art. 127-quinquies of Legislative Decree 58/1998 and art. 85-bis, paragraph 4-bis, of the CONSOB Issuers' Regulation)

Milan, May 6, 2025 - Webuild S.p.A. hereby announces the new composition of the share capital (fully subscribed and paid-up) and the total amount of voting rights following the issue, in relation to the resolutions adopted by the Extraordinary Meeting of WEBUILD S.p.A. of April 30, 2021, of a total of 1,634 ordinary shares belonging to Webuild S.p.A., as a result of the partial exercise of the 2021-2030 Webuild S.p.A. Warrants ("Anti-Dilution Warrants").

Indeed, following this issue, the share capital is still equal to 600,000,000 Euros, currently divided into 1,019,267,499 shares without express nominal value, of which 1,017,652,008 are ordinary shares and 1,615,491 are savings shares.

The updated Articles of Association, pursuant to the foregoing, alongside the certificate pursuant to Art. 2444 of the Italian Civil Code were filed today with the Milan - Monza Brianza - Lodi Business and Trade Registry.

The current composition of the share capital and the total amount of voting rights is shown below, highlighting the changes compared to the previous share capital which, as indicated, only concern the number of ordinary shares and of voting rights.

	CURRENT SHARE CAPITAL			PREVIOUS SHARE CAPITAL
	Euro	No. of shares	No. of votes	Euro	No. of shares	No. of votes
TOTAL	600,000,000	1,019,267,499	1,571,512,063	600,000,000	1,019,265,865	1,571,510,429
of which ordinary shares with one	598,201,205.28	463,791,953	463,791,953	598,201,205.28	463,790,319	463,790,319
vote ISIN: IT0003865570
(regular enjoyment: 01/01/2025)
Number of ongoing coupons: 16
Without nominal value
of which ordinary shares with		553,860.055	1,107,720,110
increased vote ISIN: IT0005491763
(regular enjoyment: 01/01/2025)					553,860.055	1,107,720,110
Number of ongoing coupons: 16
Without nominal value
of which Savings shares	1,798,794.72	1,615,491	-	1,798,794.72	1,615,491	-
(regular enjoyment: 01/01/2025)
Number of ongoing coupons: 19
Without nominal value

***

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, the Pedemontana Lombarda Highway, 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 highcapacity 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