European Commission Investigates All Foreign Subsidy Involvement in Lisbon Violet Line Tender

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November 22, 2025 12:33 AM |

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The European Commission (EC) has initiated a detailed investigation into the bid submitted for the construction of Lisbon’s Violet Line, as part of its enforcement of regulations against foreign subsidies that could potentially distort competition within the EU’s internal market. The investigation focuses on the lowest bid for the 11.5km light rail project, which will link Várzea de Loures to Hospital Beatriz Ângelo.

The winning bid, priced at €598.9 million, was submitted by a joint venture consisting of Mota-Engil, Zagope, and Spie Batignolles Internacional’s Portuguese arm. The consortium proposed CRRC Tangshan Rolling Stock from Portugal as a subcontractor, raising concerns that this selection may involve financial backing from a non-EU country, potentially influencing the competitive balance of the tender process.

European Commission’s Role in the Investigation

Lisbon Metro has clarified that the investigation does not concern the tendering process itself but is focused on determining whether the selected subcontractor, CRRC Tangshan Rolling Stock, has received financial assistance from a non-EU government, potentially distorting the competitive landscape of the bidding. The EC is responsible for examining whether such foreign subsidies may give the bidder an unfair advantage.

According to Lisbon Metro, the company will fully cooperate with the EC’s investigation, complying with all relevant regulations. Notably, the investigation will not stop the ongoing procedural steps of the public procurement process, but it will prevent the award of the contract until the inquiry concludes.

Details of the Violet Line Tender and Other Bids

The Violet Line project, with an allocated budget of €600 million, aims to establish a new light rail route in Lisbon. The tender for the design and construction of the line was opened on April 15, with bids officially opened on July 15. In addition to the bid from Mota-Engil’s consortium, other bidders included:

• MasterStylo, with a bid of €600 million
• Teixeira Duarte/Casais/Tecnovia/EPOS/Somafel/Jayme da Costa, offering €716.1 million
• FCC Construcción/Contratas y Ventas/Comsa/Comsa Instalaciones y Sistemas Industriales/Fergrupo, with a bid of €630 million

These competing offers highlight the scale of the project, as well as the different approaches to pricing for the proposed infrastructure.

Investigating the Impact of Foreign Subsidies

The European Commission’s inquiry into the potential foreign subsidies ties into broader concerns about ensuring a level playing field in EU public procurement. Regulation (EU) 2022/2560 prohibits the use of foreign state aid in a manner that might distort competition within the European Union’s single market. By investigating the involvement of CRRC Tangshan Rolling Stock as a subcontractor, the EC seeks to assess whether this subsidy could unfairly tilt the bidding process in favour of the joint venture that submitted the lowest bid.

Lisbon Metro has stressed that, while the investigation is underway, the rest of the tendering process can continue, except for the contract award itself. This means the city’s metro system can still proceed with evaluating bids and planning the project’s execution, but the final decision will remain on hold pending the outcome of the probe.

Conclusion

The European Commission’s investigation into the foreign subsidy issue surrounding the Violet Line project reflects the growing importance of ensuring fair competition in public procurement across the EU. The final decision on the contract award will depend on the outcome of the inquiry into whether external financial support has influenced the bidding process. In the meantime, Lisbon Metro continues to move forward with the planning and evaluation stages of the Violet Line project, which promises to enhance public transport connectivity across the city