Environmental and community groups sue EU over “strategic” lithium mine designation in Portugal

Environmental and community organisations have taken the European Commission to the European Court of Justice over its decision to designate a lithium mine in northern Portugal as “strategic,” arguing that the EU is accelerating a project despite mounting concerns about environmental, social and safety impacts. The legal challenge, filed by Associação Unidos em Defesa de Covas do Barroso (UDCB) and ClientEarth, seeks to annul the approval and clarify what duties fall on the Commission under an EU framework designed to secure sustainable access to critical raw materials.

Strategic status under EU rules for critical raw materials

The lawsuit targets the Commission’s designation of the Barroso mine as strategic. The groups allege that evidence pointing to risks around water, ecosystems, human health and livelihoods was not properly addressed when the project was placed on the strategic list. They are asking the court to remove or overturn the EU’s approval and to clarify how Commission obligations should be interpreted under rules that entered into force in 2024.

Those rules are intended to support sustainable access to essential raw materials—including lithium, cobalt and nickel—needed for Europe’s green and digital transitions by 2030. In March 2025, Barroso was among 47 raw material projects designated “strategic,” a status that can speed up development by easing permitting requirements, improving financing access and reducing administrative hurdles.

Critics say speed is being prioritised over safeguards

Critics argue that fast-tracking undermines safety considerations. Nik Völker of MiningWatch Portugal said the designation effectively justifies environmental degradation and harm to local communities while also disregarding lithium’s uncertain economics and Europe’s fragmented battery supply chain.

MiningWatch Portugal, UDCB and ClientEarth had previously appealed for Barroso to be removed from the strategic list. The Commission rejected those requests, stating that full compliance with EU environmental law remains Portugal’s responsibility—covering areas such as water protection, biodiversity conservation and tailings management.

Barroso is Europe’s largest spodumene deposit

The dispute centres on Barroso, described as Europe’s largest spodumene deposit with more than 39 million metric tons. Spodumene mining relies on hard-rock extraction rather than brine methods used in some other lithium production routes, but it is still described as water-intensive.

The groups’ complaint highlights potential environmental harms from extraction activities, including aquifer depletion, chemical contamination risk and disruption to local ecosystems. They also point to concerns for drinking water supplies, agriculture and biodiversity—issues they say raise questions about whether rapid development aligns with sustainable supply chain goals rather than shifting burdens onto rural areas.

A test of how Brussels weighs supply security against protection

The case comes as Barroso has received substantial public support: Savannah Resources—described as London-listed—received €110 million ($130 million) in government funding for its operations. Supporters view this type of investment as part of Europe’s broader push for battery materials needed for electric vehicles and energy storage; critics argue it reinforces pressure for quicker approvals even where risks remain contested.

At stake at the European Court of Justice is how the EU balances strategic mineral supply objectives with environmental protection requirements and social responsibility. With lithium central to Europe’s plans for electric vehicles and grid energy storage, the outcome could influence future project approvals, funding priorities and how critical raw materials governance is handled across member states.