Teixeira Durate

M&A Activity • Aug 6, 2025

- Teixeira Duarte, S.A. announces the signing of the Concession Agreement for the first phase of the Porto–Lisbon High-Speed Rail Line -

Teixeira Duarte, S.A. hereby informs that, on July 29th, the consortium LusoLav – Gestão de Alta Velocidade, S.A. ("LusoLav"), in which Teixeira Duarte – Engenharia e Construções, S.A. holds a 6.35% stake, entered into a Concession Agreement with Infraestruturas de Portugal for the Public-Private Partnership ("PPP") project concerning the High-Speed Railway Line in Portugal, between Porto (Campanhã) and Oiã (Oliveira do Bairro) ("Concession"), with a contractual value amounting to €1,661 million (present value of availability payments).

The Concession, under an availability regime, has a term of 30 years, comprising a 5-year construction period and a 25-year maintenance period, with scheduled termination on July 29th, 2055. The agreement encompasses the design, engineering, construction, and financing of the following railway infrastructure components: (i) 71 kilometers of new High-Speed Railway Line between Campanhã Station in Porto and Oiã; (ii) adaptation of the existing Campanhã Station to meet High-Speed requirements; (iii) construction of a new station in Vila Nova de Gaia; (iv) crossings over the Douro River (one exclusively dedicated to the new High-Speed Railway Line and another for road traffic); (v) connections to the Northern Line near Canelas; (vi) a new electric traction substation in the Estarreja area.

The Concession Agreement also includes the maintenance and availability, for a period of 25 years, of the aforementioned infrastructure elements, excluding the Campanhã and Gaia Stations.

In addition to the execution of the Concession Agreement, Teixeira Duarte – Engenharia e Construções, S.A. will have a significant role in the construction phase, estimated at approximately €440 million. Further involvement is anticipated from other companies within the Teixeira Duarte Group, namely:

• EPOS Empresa Portuguesa de Obras Subterrâneas, S.A. and SOMAFEL Engenharia e Obras Ferroviárias, S.A., during the infrastructure development phase;
• SOMAFEL Engenharia e Obras Ferroviárias, S.A. and TDGI Tecnologia de Gestão de Imóveis, S.A., during the maintenance phase.

This collaboration reinforces the Teixeira Duarte Group's technical and multidisciplinary capabilities in executing large-scale and highly complex railway projects.

Porto Salvo, the 5 th of August 2025 Investors Relations, Sérgio Paulo Reis Pereira

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